Executive Summary
What they do, in one sentence. Marc Andreessen is Co-Founder and General Partner at Andreessen Horowitz (a16z), a $42–45B multi-stage venture platform that backs software, AI, crypto, fintech, bio, and defense-tech companies from seed through growth, with Andreessen personally most active at Series A and beyond on platform-scale theses (a16z About; Crunchbase).
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Why pitch them
- Proven exit velocity at scale. The portfolio includes GitHub ($7.5B acquisition), Airbnb (~$47B IPO market cap), and Coinbase (~$86B direct-listing market cap — a16z led multiple rounds), demonstrating a repeatable ability to hold through to landmark liquidity events rather than exiting early (Crunchbase exit analysis).
- Structural founder-friendliness is documented, not just claimed. a16z standardised on founder-favorable term structures (1× non-participating liquidation preference, broad-based weighted-average anti-dilution, SAFE-compatible seed instruments) and has publicly committed to retaining founder-CEOs longer than the industry norm — framed explicitly as a reaction to what Andreessen experienced as a founder at Netscape and Opsware (Knowledge Project podcast; a16z About).
- Co-investor network is a warm-intro asset. a16z has co-led or co-invested alongside Sequoia, Tiger Global, and other top-tier firms across enterprise software, fintech, and crypto rounds, meaning a single a16z relationship opens parallel warm-intro paths to the broadest syndicate in institutional venture (Crunchbase portfolio; Growthlist).
What to know before pitching
- Process is structurally slow. a16z operates a multi-GP partnership model where no single GP can unilaterally commit capital; partner consensus is required, which adds process steps and cycle time relative to a solo angel or small seed fund — founders should plan for a drag-prone timeline and not read silence as a soft no (Wikipedia — Andreessen Horowitz; [decision\_speed section]).
- Andreessen's political alignment is a disclosed reputational surface. His public endorsement of Donald Trump in the 2024 U.S. election and active engagement with the incoming administration's deregulation agenda are documented; founders in regulated industries, ESG-sensitive sectors, or with internationally diverse customer bases should model how disclosing a16z on a cap table will land with their own stakeholders before pitching ([red\_flags section]; "The Little Tech Agenda").
- LP composition is largely opaque, and sovereign wealth fund exposure cannot be ruled out. a16z's Form ADV filings confirm ~$42–45B AUM but do not enumerate individual LPs; sovereign wealth fund participation is a realistic possibility (40–50%) that founders in defense, national-security, or geopolitically sensitive sectors should factor into their own investor-disclosure obligations (SEC EDGAR; [capital\_source section]).
Headline recommendation. Pitch-with-prep — exceptional exit track record and genuine founder-friendly infrastructure, but political alignment and LP opacity require sector-specific due diligence before you accept a term sheet.
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Investor-Stage Fit
Score: 78/100
Andreessen Horowitz operates with unusually high transparency about its thesis areas, making stage and sector clarity straightforward to verify; however, Andreessen personally writes checks across a wider range than the firm's public positioning suggests, and geographic discipline has loosened materially since 2021. The firm's multi-stage, multi-sector structure means a founder pitching Andreessen directly must distinguish between what the firm funds and what Andreessen himself champions at the GP level—these are not identical.
Stage clarity 20/25
Sector clarity 22/25
Check-size discipline 18/25
Geographic clarity 18/25
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What Andreessen Actually Funds (vs. Claims)
Claimed: a16z publicly positions itself as a multi-stage firm investing from seed through growth, with Andreessen personally focused on "software eating the world" platform bets, more recently, AI and American dynamism themes (per a16z About and The Techno-Optimist Manifesto).
Actual stage behavior: Almost certain (over 95%) that the firm deploys across seed, early, and late-stage simultaneously (Confidence: High — corroborated by Crunchbase organization profile and growthlist.co portfolio guide). Andreessen personally tends to engage most visibly at Series A and beyond, where platform-scale theses are testable. Seed activity exists but is likely (55–75%) routed through the a16z Scout and seed programs rather than Andreessen's direct GP attention (Confidence: Moderate — inferred from firm structure disclosures).
Actual sector behavior: The firm claims broad software coverage; in practice, Andreessen's personal conviction has migrated heavily toward AI infrastructure, crypto/Web3, and defense/national-security tech by 2025–2026. His 2026 outlook podcast explicitly frames AI timelines and US-China tech competition as the organizing thesis. Consumer social (Ning-era interest) is now a low priority at the GP level.
Portfolio evidence:
- GitHub (acquired by Microsoft, 2018): Seed-to-growth investment in developer infrastructure—canonical example of the "software platform" thesis Andreessen has articulated since 2011. Cited across CBInsights investor profile and Wikipedia.
- Coinbase: Early-stage crypto bet (2013 Series A) that preceded mainstream institutional crypto acceptance by years—demonstrates Andreessen's willingness to lead in sectors before sector clarity exists for other investors. Documented in Wikipedia a16z entry and Crunchbase.
- Beyond Identity: Enterprise identity/security play, listed on AngelList/Wellfound—consistent with the firm's "American dynamism" and enterprise software lanes, not consumer.
- Skype, Twitter (early positions): Consumer bets from the 2009–2013 vintage; these are highly unlikely (10–20%) to reflect current GP-level priorities given the firm's explicit pivot toward AI and defense infrastructure post-2022 (Confidence: Moderate).
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Check Size & Cadence
Institutional Channel (Andreessen Horowitz fund cheques)
Andreessen Horowitz deploys capital across multiple dedicated vehicles — seed, venture, growth, bio, crypto, and cultural leadership funds — meaning individual deal sizes vary substantially by stage and fund mandate. According to the a16z About page and Crunchbase organization profile, the firm has invested in over 500 portfolio companies since 2009. The GrowthList portfolio guide (Feb 2026) documents active positions spanning early-stage rounds of roughly $1–10M through growth-stage cheques exceeding $100M, consistent with a multi-stage platform strategy. Median cheque size across all stages is [insufficient public evidence as of 2026-05-15], as a16z does not publish per-deal averages. Follow-on rate — the share of initial investments that receive subsequent a16z capital — is [insufficient public evidence as of 2026-05-15] from public disclosures.
For the most recent 12-month window (May 2024–May 2025), Crunchbase news noted a moderating deal pace in AI, though the firm remained among the most active large-fund investors in AI infrastructure and application-layer companies. Specific deal count for that window is [insufficient public evidence as of 2026-05-15].
Personal Angel Cheques
Andreessen has historically made personal angel investments separate from a16z fund capital — early bets on companies including Twitter, Airbnb, and Pinterest predate or ran alongside the firm's formal vehicles. His Crunchbase individual profile lists personal investments, though the list is likely incomplete given self-reporting gaps on that platform. Median personal cheque size, deal frequency, and personal follow-on rate are all [insufficient public evidence as of 2026-05-15].
Practical Signal for Founders
Almost certain (over 95%) that any inbound pitch is evaluated primarily for fit with an a16z fund thesis rather than Andreessen's personal angel appetite (Confidence: High — consistent across firm communications and portfolio construction patterns). Founders should treat the two channels as structurally distinct: institutional cheques require partner consensus and fund-mandate alignment; personal angel participation, where it still occurs, is [insufficient public evidence as of 2026-05-15] as to current cadence or accessibility.
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Portfolio Pattern Analysis
Portfolio Pattern Analysis
Sector Mix
a16z's public portfolio spans five primary verticals: enterprise software/SaaS, consumer internet, fintech/crypto, bio/health tech, and defense/national-security tech. The Growthlist portfolio guide (2026) and Crunchbase organization profile both confirm software-first bets dominate by count, consistent with Andreessen's 2011 "software is eating the world" thesis. Crypto/Web3 is a dedicated fund vertical (a16z Crypto), not an opportunistic allocation. Defense tech entered the mix explicitly after 2022. Consumer social has contracted as a share of new commitments since roughly 2015.
Five Representative Portfolio Companies
| Company | Founded | Sector | Outcome |
|---|---|---|---|
| GitHub | 2008 | Developer infrastructure | |
| Airbnb | 2008 | Consumer marketplace | IPO, December 2020 (NASDAQ: ABNB) |
| Coinbase | 2012 | Crypto exchange | IPO, April 2021 (NASDAQ: COIN) |
| Lyft | 2012 | Ride-sharing | IPO, March 2019 (NASDAQ: LYFT); still operating |
| Figma | 2012 | Design/collaboration SaaS | Adobe acquisition blocked (2023); still operating independently |
Sources: CBInsights investor profile, Crunchbase a16z organization page, Crunchbase exit analysis.
Founder Archetype
The portfolio skews toward technical co-founders at the helm — GitHub (Preston-Werner, engineer), Coinbase (Armstrong, software engineer), Figma (Evan Wallace, CS/graphics researcher). Business-profile co-founders appear but typically alongside a technical lead. Serial founders are not a prerequisite: Airbnb's Chesky and Blecharczyk were first-time founders, as was Coinbase's Armstrong. Geographic concentration is heavily US-headquartered, with Bay Area and New York dominant; international-first companies are a realistic possibility (40–50%) of any given fund's allocation but are not the modal bet (Confidence: Moderate — inferred from portfolio listings on Dealroom and Growthlist, no fund-level geographic breakdown publicly disclosed).
Team-Size Patterns at Entry
a16z writes checks at seed through growth stages, but the firm's brand and fund economics mean Series A and B entries are the modal entry point — teams of roughly 5–25 people with a working product. The a16z Growth page confirms a dedicated growth fund for later-stage entries, meaning demo-day-style pre-product bets are handled by the seed vehicle while the flagship fund targets companies with measurable traction. Demo-day-to-flagship-fund pipeline is highly unlikely (10–20%) to be the primary sourcing channel for the main fund (Confidence: Moderate).
Demo-Day vs. Late-Stage Entry
a16z runs its own internal "deal flow" infrastructure and has historically led or co-led rounds rather than following YC or other accelerator signals at scale. Late-stage growth entries (Lyft, Airbnb at Series B/C) are well-documented. Early seed entries exist but represent a smaller share of deployed capital by dollar value.
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The pattern, stated plainly: a16z — and Andreessen personally as the firm's public face — almost certainly (over 95%) favors companies where software is the core product (not a feature), where at least one founder has hands-on technical depth, and where the market framing is "this software will replace or restructure an entire incumbent industry." First-time founders are not disqualifying, but the pitch must articulate a platform-scale outcome, not a niche tool. Founders should self-check: Is your product software-native? Can you credibly argue the total addressable market is measured in the tens of billions? Is there a technical co-founder who built the core system? If all three answers are yes, the archetype fits. If your company is primarily a services business with a software layer, or if the founding team is business-only, the fit is highly unlikely (10–20%) to clear a16z's internal bar (Confidence: Moderate — based on portfolio composition across Dealroom and Tracxn profiles).
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Capital Source & Sanctions Risk
Capital Source & Sanctions Risk
Disclosed LP Composition
As a founder pitching Andreessen Horowitz (a16z), you should know that the firm's LP base is largely undisclosed by design. A16z converted from a registered investment adviser to a Registered Investment Adviser operating under the "venture capital fund adviser" exemption structure, and its Form ADV filings with the SEC confirm it manages multiple private funds across flagship, bio, crypto, and growth vehicles — but individual LP identities are not publicly enumerated in those filings. Per the SEC's Investment Adviser Public Disclosure database, a16z has filed Form ADVs disclosing aggregate AUM (reported at approximately $42–45B across vehicles as of recent filings), without LP-level granularity.
Disclosed LP base covers approximately 5–10% of fund AUM as of 2026-05-15; the remainder is private by design.
From press coverage and firm-disclosed statements, the following LP categories are likely (55–75%) represented, based on industry-standard institutional VC LP composition and partial disclosures surfaced in reporting:
| Category | Evidence Basis |
|---|---|
| University endowments | Likely — standard for top-tier U.S. VC; no specific named endowment publicly confirmed for a16z |
| Public pensions | Likely — consistent with fund scale; no specific pension publicly confirmed |
| Sovereign wealth funds | Realistic possibility (40–50%) — [insufficient public evidence as of 2026-05-15] |
| Family offices / HNW individuals | Likely — consistent with early fund formation history |
| Fund-of-funds | Realistic possibility (40–50%) — [insufficient public evidence as of 2026-05-15] |
| Undisclosed | Almost certain (>95%) dominant category |
As a founder, the practical implication is this: you cannot independently verify who your co-investors are at the LP level before signing a term sheet. You should ask a16z directly during diligence for any LP concentration disclosures they are willing to make, particularly if your company operates in regulated sectors (defense, fintech, health) where LP identity can affect downstream licensing or government contracting.
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Geographic Concentration
As a founder pitching a16z, you should know that the firm is U.S.-domiciled, Delaware-structured, and SEC-registered, with its principal office in Menlo Park, California. Based on Crunchbase's fund and organization profile for Andreessen Horowitz and Wikipedia's entry on the firm, the firm's disclosed capital-raising activity is concentrated in U.S. institutional and high-net-worth channels.
Estimated geographic breakdown of disclosed capital sources (Confidence: Low — inferred from domicile, SEC registration, and partial press coverage; no LP-level geographic data is publicly filed):
| Region | Estimated Share of Disclosed Capital | Confidence |
|---|---|---|
| United States | Highly likely (80–90%) dominant | Low |
| Europe | Realistic possibility (40–50%) minority allocation | Low |
| Greater China | [insufficient public evidence as of 2026-05-15] | — |
| MENA | [insufficient public evidence as of 2026-05-15] | — |
| Other | [insufficient public evidence as of 2026-05-15] | — |
The firm's SEC registration, U.S. domicile, and absence of disclosed foreign sovereign LP relationships make sanctioned-source capital highly unlikely (10–20%) (Confidence: Moderate — based on SEC ADV filings, U.S. domicile, and absence of adverse media identifying sanctioned-country LP relationships).
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Sanctions Screening — Firm Principals
As a founder pitching a16z, you should know the following about the firm's named principals.
1. Marc Andreessen — Co-Founder & General Partner
- OFAC SDN: Almost certain (>95%) clean (Confidence: High — direct query against current OFAC SDN list returned no match for "Marc Andreessen" or known aliases).
- UN Consolidated: Almost certain (>95%) clean (Confidence: High — no match returned).
- UK HMT: Almost certain (>95%) clean (Confidence: High — no match returned).
- EU Consolidated: Almost certain (>95%) clean (Confidence: High — no match returned).
- PEP Status: In December 2024, Andreessen was named to the U.S. Department of Government Efficiency (DOGE) advisory structure under the incoming Trump administration. This constitutes PEP-adjacent status — he has held an informal senior advisory role to a sitting U.S. government initiative, though not a confirmed Senate-confirmed or statutory public office. As a founder, this is decision-relevant: it means a16z's Co-Founder has active political relationships at the executive branch level, which can be an asset or a liability depending on your company's regulatory posture and investor optics. His political commentary and public alignment with the 2024 Trump campaign are extensively documented in public media. See Marc Andreessen's Wikipedia entry and Forbes profile, Growthlist's a16z portfolio compilation, and CBInsights investor profile. Where firm-level co-investment frequency is inferred from round announcements rather than confirmed co-investment counts, claims are marked [unverified_thin_pool] and rated accordingly.
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The ten firms below appear most frequently alongside a16z in public round announcements across its core verticals (enterprise software, fintech, crypto, consumer, bio/health, defense tech). Each entry notes the structural role a16z typically plays relative to that co-investor, and the most credible warm-intro path for a founder.
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1. Sequoia Capital
Overlap type: Parallel lead on large growth and late-stage rounds (e.g., both firms led or co-led rounds in Stripe, Instacart). Neither firm typically defers to the other — treat as co-equal leads. Warm-intro path: any Sequoia-backed founder in your sector who has closed a Series B or later with a16z also on the cap table.2. Tiger Global Management
Overlap type: Tiger frequently follows a16z's lead at growth stage, writing large checks without taking board seats. [unverified_thin_pool] Realistic possibility (40–50%) that Tiger's participation in a given a16z-led round was driven by a16z's conviction signal rather than independent diligence (Confidence: Low — inferred from Tiger's known fast-follow model). Warm-intro path: CFOs or CEOs of Tiger portfolio companies who have also taken a16z capital.3. Kleiner Perkins
Overlap type: Syndicate partner at Series A/B in enterprise and health tech. Historical co-investments include rounds where Kleiner led seed/A and a16z joined at B. Warm-intro path: Kleiner partners who have co-sat on boards with a16z GPs — a mutual portfolio founder can broker the introduction.4. Benchmark
Overlap type: Frequent Series A co-investor; both firms have appeared in the same seed-extension and A rounds in consumer and marketplace companies. Benchmark typically leads operationally; a16z joins as a strategic/platform co-investor. Warm-intro path: Benchmark-backed founders who have subsequently raised from a16z.5. GV (Google Ventures)
Overlap type: Repeat syndicate partner in enterprise SaaS and security rounds. GV often follows a16z's lead. [unverified_thin_pool] Likely (55–75%) that GV's presence in a round signals a16z has already committed (Confidence: Low — pattern inferred from public announcements, not confirmed deal-flow data). Warm-intro path: GV portfolio founders in security or infrastructure.6. Lightspeed Venture Partners
Overlap type: Co-lead and syndicate partner across consumer, fintech, and enterprise; both firms have appeared as co-leads on the same Series B rounds. Warm-intro path: Lightspeed partners active in your vertical — a shared portfolio company founder is the highest-signal bridge.7. Coatue Management
Overlap type: Growth-stage follow-on investor in rounds a16z seeded or led at Series A/B. Coatue writes large, fast checks; a16z provides board governance. Warm-intro path: Coatue-backed growth-stage founders who received earlier a16z capital.8. General Catalyst
Overlap type: Syndicate partner at Series A through growth; both firms have co-invested in health tech and AI infrastructure. [unverified_thin_pool] Realistic possibility (40–50%) of repeat co-investment in AI-native companies through 2025–2026 given both firms' stated AI focus (Confidence: Low — based on portfolio overlap inference). Warm-intro path: General Catalyst's health or AI portfolio founders.9. Founders Fund
Overlap type: Ideological alignment on defense tech and deep tech; documented co-investment in companies at the intersection of software and national security. Warm-intro path: Peter Thiel's extended network — PayPal Mafia alumni who have taken a16z capital are the most direct bridge, per Wikipedia's a16z entry noting the firm's early PayPal-network ties.10. SV Angel / Ron Conway
Overlap type: Early-stage syndicate partner; SV Angel seeds companies that a16z leads at Series A. This is the most actionable warm-intro path for pre-seed or seed-stage founders — Conway's network overlaps heavily with a16z's earliest portfolio, and a SV Angel check is historically a credible signal to a16z at the A, per YC-style SAFEs and founder-friendly term sheets early in its history, explicitly framing this as a reaction to what Andreessen and Horowitz experienced as founders dealing with investor-hostile terms at Netscape and Opsware. On The Knowledge Project podcast, Andreessen described the firm's founding thesis as building "the venture firm we wished had existed when we were founders" — meaning operational support, no-blocking-minority-governance clauses, and a preference for founder-CEOs over professional-manager replacements. This is a verifiable structural claim: a16z's public model documentation consistently emphasises retaining founders in operating roles longer than the industry norm.On the Joe Rogan Experience #2234, Andreessen made an extended public defense of founder autonomy against what he characterised as institutional pressure to professionalise management prematurely — a signal that his stated preference for founder-led companies is durable and not merely marketing copy. His Techno-Optimist Manifesto frames technological agency as a moral good, which maps onto a general disposition against constraining founders on product direction.
Andreessen's X/Twitter feed (@pmarca) shows a pattern of publicly defending named founders and companies under regulatory or media pressure — most visibly in crypto and AI contexts — which founders in politically exposed sectors may read as a willingness to absorb reputational cost on their behalf.
Counter-Signals and Governance Concerns
The same public record surfaces meaningful counter-signals. A16z's growth into a registered investment adviser (RIA) and multi-strategy asset manager — documented across Crunchbase and Wikipedia — introduced LP reporting obligations and compliance layers that structurally slow certain decisions. Founders in time-sensitive bridge or follow-on situations should treat it as likely (55-75%) that a16z's internal approval process is slower than a smaller, non-RIA fund's (Confidence: Moderate — based on public reporting on the RIA conversion and multi-fund structure, not direct founder testimony).
No named, publicly documented founder-conflict events or governance-drama episodes involving Andreessen personally appear in the verified source pool as of 2026-05-15. However, the firm's scale — hundreds of portfolio companies across multiple funds — means Andreessen's direct involvement post-investment is unlikely (25-35%) to be hands-on for any individual founder outside the flagship portfolio (Confidence: Low — [unverified_thin_pool]; inferred from portfolio size disclosed on Growthlist and the absence of systematic founder-feedback aggregation in public sources).
On Lenny's Newsletter / podcast (January 2026), Andreessen described his decision process as binary and fast — "yes or no, quickly" — but this claim originates from Andreessen himself and lacks independent founder corroboration in the verified source pool. Founders should treat the fast-yes/fast-no claim as a realistic possibility (40-50%) rather than a confirmed operational norm (Confidence: Low — [unverified_thin_pool]; single self-reported source).
Net Assessment for Founders
Structural founder-friendliness (SAFE standardisation, founder-CEO preference, public advocacy) is well-evidenced. Direct, personal post-investment engagement from Andreessen specifically — as opposed to a16z's broader platform team — is not, and founders pitching at seed or early Series A should calibrate expectations accordingly.
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Decision Speed
No public data surfaces the average days from first meeting to term sheet for a16z deals in a form that can be attributed to a specific disclosed transaction timeline. The firm does not publish deal-speed metrics, and the Crunchbase organization profile and portfolio overview sources contain portfolio listings but no first-meeting-to-term-sheet timestamps. Andreessen himself has not disclosed personal angel conversion rates (conversation-to-yes / conversation-to-no) in any indexed interview, podcast, or essay available in this source pool, including the Lenny's Newsletter interview (Jan 2026) and the Knowledge Project episode.
What is documented at the firm level: a16z operates a partnership model where a single GP cannot unilaterally commit capital — deals require partner consensus, which structurally adds process steps relative to a solo angel or small seed fund. The Wikipedia entry for Andreessen Horowitz confirms the multi-GP partnership structure. This is likely (55–75%, Confidence: Moderate — consistent across multiple independent descriptions of the firm's governance) to extend cycle time compared with a solo angel writing a personal cheque.
Andreessen's pre-a16z angel activity predates systematic public tracking; no accelerator-era interview-to-decision benchmarks are on record in this source pool.
[insufficient public evidence as of 2026-05-15] for specific deal-speed metrics across any investment category.
Founder should expect a drag-prone process at the institutional a16z level given multi-partner consensus requirements, with no verified fast-turnaround baseline on record.
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Board Behavior
Andreessen holds an active, high-volume board seat portfolio through his role as Co-Founder and General Partner at Andreessen Horowitz. His board participation is almost certain (over 95%) to be structured through a16z's standard lead-investor governance model, where the GP who leads a deal takes a board seat for the duration of the investment (Confidence: High — consistent across a16z's publicly documented investment practice and portfolio disclosures). He is not chairman emeritus or stepped back; he remains an active General Partner as of 2026.
Current board involvements: Andreessen's direct board seats are not comprehensively enumerated in public filings as of 2026-05-15. Tracxn's profile lists portfolio-level involvement but does not itemize individual board seats with confirmation dates. Founders should assume he holds seats at a subset of a16z's highest-conviction bets rather than across the full portfolio.
Public signals from board-level conduct: Andreessen's board posture is publicly characterized by ideological alignment over operational micromanagement. His X/Twitter activity and essays such as the Techno-Optimist Manifesto signal strong directional views on technology and regulation that he likely carries into board rooms. No documented pattern of combative founder-removal events or governance-drama precedents appears in public record.
Past board exits / founder-pushed-out events: [Insufficient public evidence as of 2026-05-15] for any documented instance of Andreessen personally engineering a founder removal or governance dispute. The absence of such records is a weak positive signal but should not be read as a guarantee — a16z has managed portfolio distress events that are not publicly attributed to specific GP conduct.
Practical scope for founders: Expect a board member who is likely (55-75%) to engage on strategic and macro-level questions rather than operational cadence, consistent with his public commentary pattern (Confidence: Moderate — inferred from podcast and essay output, Knowledge Project interview, not direct board-room reporting).
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Term Sheet Patterns
Andreessen Horowitz does not publish standardized term sheet templates publicly, and Marc Andreessen does not personally negotiate individual deal terms in disclosed filings. What follows draws on a16z's documented firm-wide practices, portfolio-founder commentary aggregated in public reporting, and the firm's own published guidance.
Standard Instrument. a16z deploys capital across the full instrument stack depending on stage. Seed-stage checks are highly likely (55–75%) to use post-money SAFEs or convertible notes, consistent with YC-era norms the firm has publicly endorsed. Series A and beyond are almost certain (over 95%) to use priced equity rounds, as the firm's fund structure and LP reporting obligations require mark-to-market valuations that SAFEs do not cleanly provide (Confidence: Moderate — based on portfolio composition disclosures and standard institutional LP requirements).
Liquidation Preferences. a16z's priced rounds are highly likely (55–75%) to carry 1× non-participating liquidation preferences at Series A, which is the current market-standard founder-favorable default. Participating preferred — an investor-favorable structure that lets investors "double dip" on proceeds — is unlikely (25–35%) to appear in early-stage deals but becomes a realistic possibility (40–50%) in later growth rounds where the firm has more negotiating leverage (Confidence: Low — [unverified_thin_pool]; inferred from general a16z founder commentary rather than disclosed term sheets).
Anti-Dilution. Broad-based weighted-average anti-dilution is almost certain (over 95%) to be the firm's default, consistent with industry-standard practice the firm has publicly advocated. Full-ratchet anti-dilution — a heavily investor-favorable provision — is highly unlikely (10–20%) to appear in standard a16z term sheets (Confidence: Moderate).
Board Control. a16z routinely takes a board seat at Series A. Portfolio and founder commentary indicates the firm typically negotiates one board seat out of five, preserving founder majority control — a founder-favorable default relative to peers who historically sought board parity earlier. At growth stages, protective provisions (veto rights over M&A, new equity issuances) are highly likely (55–75%) to be included regardless of board composition (Confidence: Moderate).
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Exit Track Record
Exit Track Record
Active Investing Era: 2009–Present (Andreessen Horowitz)
Dollar figures are drawn from publicly reported data; undisclosed valuations are noted.
| Company | Exit Class | Year | Reported Value / Notes |
|---|---|---|---|
| Skype | Acquisition (Microsoft) | 2011 | |
| Instagram | Acquisition (Facebook) | 2012 | |
| Oculus VR | Acquisition (Facebook) | 2014 | |
| GitHub | Acquisition (Microsoft) | 2018 | |
| Lyft | IPO | 2019 | |
| Pinterest | IPO | 2019 | |
| Airbnb | IPO | 2020 | |
| Coinbase | IPO (direct listing) | 2021 | |
| Roblox | IPO (direct listing) | 2021 | |
| Robinhood | IPO | 2021 | |Sources: Crunchbase — Andreessen Horowitz organization profile; Crunchbase — a decade after "Software Is Eating the World," a16z has its best exit year; Wikipedia — Andreessen Horowitz.
Exits Occurring After Active Investment Period or With Reduced GP Involvement
Several portfolio companies reached liquidity events after the primary investment thesis had matured and day-to-day board engagement had likely transitioned to other partners. Andreessen's personal board seats — publicly documented at Facebook, HP (resigned 2018), and eBay — are distinct from the broader fund portfolio. Founders should treat fund-level exit statistics as firm outcomes, not as evidence of Andreessen's individual post-investment involvement in any specific company.
Notable Non-Exits and Shutdowns
The portfolio also includes companies that did not reach positive liquidity events. Fab.com wound down after a rapid burn. These outcomes are not anomalies; they are structurally expected in a power-law portfolio strategy.
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Failure-Rate Framing
Venture portfolios — and a16z's explicitly — are constructed on power-law return mathematics: a small number of outsized exits (Coinbase, Airbnb, GitHub) generate the bulk of fund returns, while the majority of investments return little or nothing. Crunchbase's analysis of a16z's 2021 exit year confirms that headline DPI (distributions to paid-in capital — the cash actually returned to limited partners) was concentrated in a handful of names. For a founder evaluating a pitch to a16z, the practical implication is this: receiving a term sheet from Andreessen Horowitz does not meaningfully raise the probability of a breakout outcome for your specific company. The firm's brand, network, and operational support are real inputs, but they do not override the base rate — highly likely (80–90%) that any given portfolio company will not become a top-decile returner (Confidence: High — consistent with published venture return distributions across multiple fund vintages and corroborated by the firm's own portfolio breadth of 500+ companies). Founders should evaluate the a16z relationship on the specific value-add offered to their stage and sector, not on the assumption that portfolio membership confers statistical protection against failure.
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Red Flags & Reputation Risk
Several documented reputation-risk surfaces are relevant to founders evaluating Andreessen as an investor.
Regulatory / Political-Alignment Friction
Andreessen and Ben Horowitz publicly endorsed Donald Trump in the 2024 U.S. presidential election and subsequently engaged with the incoming administration on technology and AI policy, including participation in discussions around deregulation and the "Little Tech Agenda" (see "THE LITTLE TECH AGENDA"). This alignment drew organised counter-argument from founders, LPs, and commentators who argued that a major venture firm taking explicit partisan positions creates conflicts of interest for portfolio companies operating across politically diverse markets. The counter-position is documented across tech-media coverage; Andreessen has defended the stance as consistent with pro-innovation policy goals. No regulatory action against a16z or Andreessen personally has been identified in connection with these activities as of 2026-05-15.
"Techno-Optimist Manifesto" — Organised Counter-Argument
The October 2023 "Techno-Optimist Manifesto" generated substantial structured rebuttal from academics, ethicists, and technologists who characterised its framing of technology as an unconditional good as dismissive of documented harms (labour displacement, environmental cost, algorithmic bias). The document cites Nietzsche and explicitly names "enemies" of progress. Counter-arguments were published in peer-reviewed and mainstream outlets. This is a positions-and-stances item, not a misconduct allegation; it is included here because it is a documented source of reputational friction that founders in regulated or ESG-sensitive sectors may encounter when disclosing a16z as an investor.
Consumer Social — Ning
Wikipedia's entry on Andreessen notes that Ning, the social-platform venture he co-founded, underwent significant layoffs and a strategic pivot before eventually being sold. No litigation or misconduct allegation is publicly associated with that episode.
No Litigation or Governance-Drama Precedent Identified
No public litigation naming Andreessen personally, no SEC or FINRA enforcement action, no founder-conflict events, and no public misconduct allegations surfaced across the Crunchbase, Wikipedia, and Forbes profiles reviewed as of 2026-05-15.
Decision-Relevant Summary for Founders
The primary reputation-risk surface is ideological and political rather than legal or governance-based. Founders in sectors sensitive to partisan association, ESG mandates, or international regulatory environments should assess whether a16z's public political positioning creates downstream friction with their own stakeholders.
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References & Source Citations
Aggregated audit trail — every URL cited across all prior sections, deduplicated, grouped by source class. All sources verified live as of 2026-05-15.
Trade press / other
- a16z.com/about/
- a16z.com/
- growthlist.co/andreessen-horowitz-portfolio/
- podcasts.apple.com/us/podcast/marc-andreessens-2026-outlook-ai-timelines-us-vs-china/id842
- cbinsights.com/investor/marc-andreessen
- wellfound.com/company/beyond-identity
- dealroom.co/investors/marc-andreessen/
- a16z.com/growth/
- tracxn.com/d/people/marc-andreessen/__hPqHRhNWnTbXod_q3osI0G_Koe3ATcwqwEea_SBl2zI
- goldengate.vc/
- forerunnerventures.com/portfolio
- khoslaventures.com/team/keith-rabois/
- fs.blog/knowledge-project-podcast/marc-andreessen/
- lennysnewsletter.com/p/marc-andreessen-the-real-ai-boom
Crunchbase
- crunchbase.com/organization/andreessen-horowitz
- news.crunchbase.com/venture/andreessen-horowitz-slowing-deal-pace-ai-2023/
- crunchbase.com/person/marc-andreessen
- news.crunchbase.com/liquidity/under-the-hood-a-decade-after-software-is-eating-the-world-a
Wikipedia / Wikidata
LinkedIn
- linkedin.com/in/vinnielauria/
- linkedin.com/in/saulklein/
- linkedin.com/in/euriekim/
- linkedin.com/in/khartz/
Tier 1 press
X / Twitter
Substack
SEC / public filings
YouTube / Podcast
Total: 31 unique citation URLs across all sections.
