Riot Ventures

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Portfolio companies

Riot Ventures is on record against 28 companies, each listed on its own site.

Funding records for these companies

One of these companies has a funding record on file.

Fund vehicles on file

Riot Ventures has 2 venture fund vehicles on file with the SEC, run from Venice, California, with first sales running from 2024 to 2026. 3 Form D notices, originals and amendments, have been filed for them, the first on October 31, 2024 and the latest on July 14, 2026. Together they have taken in $282,607,143 from 59 investor positions, most recently on July 1, 2026. One vehicle is still showing room to take more.

Vehicles21 still open
Closed$282.6M$282,607,143
Target$291M$291,000,000
Since last close119dJuly 1, 2026
Vehicle Vintage Target Closed Remaining First sale Days Min check LPs Status
Riot Ventures Select Fund I, L.P.
Limited Partnership · Delaware-organised
2026 $131M $131M — July 1, 2026 119 — 2 fully sold
Riot Ventures Fund III, L.P.
Limited Partnership · Delaware-organised
2024 $160M $151.6M $8.4M November 1, 2024 726 — 57 open amended
People named in the fund filings

The filings for these vehicles name 2 people and entities, with the role each filing gives.

Registered adviser

No SEC adviser registration found under this name.

Stage focus
pre_seedgrowth
People on the record
Stephen Marcus Co-Founder and General Partner, Riot Ventures
Public profiles
LinkedIn · X
Investment focus

Invests from pre-seed to growth stage ($500k–$100M) in hard-tech companies modernizing aerospace, energy, construction, and manufacturing. Focuses on underfunded sectors, led by a six-time infrastructure founder. Geographic focus is not specified.

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Permanent URL: https://mentionfox.com/investors/riot-ventures
Last updated 2026-07-14
Riot Ventures: venture fund vehicles on file. MentionFox, 2026-07-14. https://mentionfox.com/investors/riot-ventures
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