Research dump

Files

Every hosted source file, at a stable public path. Direct GET. CORS open on /files/*.

yc-oss-all-raw.json (10 MB duplicate of the directory dump) and the Python / edgar-cache build tools are not published here.

/files/yc-directory-by-batch.json2.2 MBJSONCompact 50-batch explorer file: every directory company with official status; website / host from the directory dump; CIK / ticker / first filing merged from the match files

/files/yc-mindmap.md11 KBMDBatch mindmap, first-filings-by-year table, 18 fund vehicles

/files/yc-matched-all.json146 KBJSONFlat merged 556 confirmed CIKs, oldest batch first

/files/yc-matched-by-batch.json107 KBJSONSame 556 grouped by official directory batch

/files/yc-edgar-coverage.json1.5 KBJSON556 / 6,191 coverage, 2,801 searched, 3,365 unsearched

/files/yc-entities.json43 KBJSON18 first-party fund vehicles, adviser, ADV 7.B, rejected lookalikes

/files/yc-entities.md18 KBMDWhy a naive “Y Combinator” EDGAR search is empty; full fund map

/files/yc-public-filings.json152 KBJSON25 public / SEC-rich companies with filing histories

/files/yc-public-filings.md54 KBMDPublic-company filing narrative

/files/yc-form-d-portfolio.json912 KBJSON531 extra directory → Form D CIK matches

/files/yc-form-d-related.json105 KBJSONRelated-person Form D / D/A filings (YC’s own vehicles)

/files/yc-form-d-summary.md10 KBMDForm D sweep method and honest zeros

/files/yc-filings-timeline.json37 KBJSONFirst Form D, S-1, IPO / de-SPAC events

/files/yc-batches-summary.md10 KBMDDirectory batch counts, S05 → W27

/files/yc-public-companies.json27 KBJSONPublic + flagged SEC-relevant subset from the directory

/files/yc-companies.json5.6 MBJSONFull 6,191-company official directory dump

Company marks via Logo.dev