Y Combinator × EDGAR
As of Monday 24 Aug 2026 · America/Denver
Map YC
every confirmed SEC filing of Y Combinator and its companies, S05 → 2026.
2,801 names searched; 3,365 still unsearched. A zero hit is not evidence a company is not YC — many never file a US Form D. 531 extra Form D matches plus 25 public / SEC-rich = 556. No companies or CIKs were invented.
Directory mindmap
50 batches from the center out
Center is YC — all 6,191 official directory companies. The ring is every batch, S05 to newest, sized by count and colored by status mix. Click a batch for its companies. Search filters the map. Try to highlight W16 and F25. Esc closes the panel. Nothing here is invented.
Directory outcomes
Where every company stands
Official YC status on 24 Aug 2026: 4,290 Active, 808 Acquired, 1,070 Inactive, 23 Public. Reddit is still Acquired in the directory (IPO 2024, RDDT). Stripe is still Active.
Stacked bars below are 100% composition, oldest batch first. Height is mix, not size — hover for counts. Click a column to open that batch. Pale columns have no confirmed EDGAR match yet.
Batch explorer
All 6,191 companies, S05 first
Every official directory batch, including the five with zero confirmed filings (F25, S26, F26, W27, Unspecified). Status is YC’s. CIK, ticker, and first filing appear only when a match was confirmed. Website is the official directory URL when present.
Filings over time
First EDGAR filing by year
First Form D date when known, else the first filing attributed to the operating company. 556 companies with a dated first filing. 2021 peak.
US listings (IPO effectiveness, 8-A12B, or S-4 effectiveness) — 22 of 25 in the public set. Stripe, Meesho, and Groww have no listing event in the file.
First-party issuers
18 YC fund vehicles
Confirmed EDGAR issuers at 335 Pioneer Way, Mountain View, CA. Form D / D/A only — no 10-K, 13F, or S-1 under these CIKs. The adviser, Y Combinator Management, LLC (CRD 171730), has no CIK. 18 first-party CIKs · 29 Form D / D/A filings.
| First Form D | Legal name | Filings | CIK |
|---|
Core seed names on the 2026 ADV — Y Combinator Fund I, Fund II, YCVC Fund I — carry placeholder Form D numbers and were not found on EDGAR.
Public set
25 in the public / SEC-rich set
Official YC status = Public is 23. Reddit (still Acquired) and Stripe (still Active) are included because they are the SEC-rich exceptions named in the research, not because we changed YC’s labels.
Research dump
Hosted files
Every source file used to build this map, at a stable public path. Direct URLs, no login. Full catalog →