FileStack went through Y Combinator in the Summer 2012 batch and describes itself as: Acquired by Xenon Ventures.We enable website developers to hook into. As of November 10, 2026, Y Combinator's directory lists it as Inactive (Y Combinator directory entry, May 4, 2012).
Sell to companies like FileStack? Enter your website and see 10 with a filed reason to buy from you this month. Free.
Opens in a new tab. No signup.
Get the full cited report on FileStack
Example from a real report (our sample on Target): “In March 2026, Target announced a planned incremental $1 billion operating investment” Source: Target Corporation (press release)
- The Short Answer
- Warning Bells
- Sources: 1 cited
- See all sections
A Full Report on FileStack: verified, sourced, every claim cited, ready in a few minutes. See pricing.
Pitching, partnering or investing alongside them? See who really runs and owns FileStack.
Free to see. No signup.
Watch FileStack
Get an email when FileStack changes status, grows its team or files a funding notice. One email first to confirm; nothing else until you click it. At most one a day, one click to stop. Free for up to 3 companies.
Key facts
- · Batch: Summer 2012 · FileStack in the Y Combinator directory
- · Industry: B2B · FileStack in the Y Combinator directory
- · Team size: 50 · FileStack in the Y Combinator directory
- · Based: San Antonio, TX, USA · FileStack in the Y Combinator directory
- · Status: Inactive, as listed by Y Combinator · FileStack in the Y Combinator directory
FileStack went through Y Combinator in the Summer 2012 batch, describing itself as Acquired by Xenon Ventures.We enable website developers to hook into…. Y Combinator's company directory lists it as Inactive. The directory does not say why a company stopped, and this page does not guess.
- Batch
- Summer 2012
- What they did
- Acquired by Xenon Ventures.We enable website developers to hook into…
- Industry
- B2B
- Team size
- 50
- Based
- San Antonio, TX, USA
- Status
- Inactive, as listed by Y Combinator
Its batch
Summer 2012 had 83 companies in YC's listing: 22 Active, 21 Acquired, 2 Public and 38 Inactive, so FileStack is one of 38 companies from that batch listed as Inactive (46%). Across YC batches at least two years old, 23% of companies are listed Inactive.
Statuses are Y Combinator's own listing in its public company directory, read on the date shown. YC's directory can drop companies altogether, so the Inactive counts here are a floor, not a full count of companies that stopped. Acquired and Public are as YC lists them; neither says anything about the price or the outcome for founders.
The record: FileStack in the Y Combinator directory. Measured 2026-11-10 from Y Combinator's company directory.
YC Summer 2012All shut-down YC companiesYC outcomes
Want the whole picture on FileStack?
Example from a real report (our sample on Target): “In March 2026, Target announced a planned incremental $1 billion operating investment” Source: Target Corporation (press release)
A Full Report on FileStack: verified, sourced, every claim cited, ready in a few minutes. See pricing.
What the Full Report on FileStack covers
The Short Answer
Which Company This Is
What They Do, And How The Money Works
Who Runs It, And How To Reach Them
The Money: Funding, Valuation, Runway
Who Pays Them, And Who They Are Up Against
Warning Bells
Sources
1 cited source found
Plus the sections for what you are deciding, which you pick after ordering.
A real finished report, first screen. Opens in a new tab.
Not ready to order yet? Keep this snapshot.
Sends this preview to you once; we won't add you to any list
Tools for this story
Each opens in a new tab, filled in for FileStack. With no account yet, you sign up free and land on the result.