{ "generatedAt": "2026-08-24T19:15:00Z", "generatedFor": "Jonathan Drake", "asOf": "2026-08-24", "sources": [ { "name": "EDGAR company search (browse-edgar)", "url": "https://www.sec.gov/cgi-bin/browse-edgar?company=Y+Combinator&owner=exclude&action=getcompany" }, { "name": "EDGAR full-text search API", "url": "https://efts.sec.gov/LATEST/search-index?q=%22Y+Combinator%22" }, { "name": "EDGAR entity autocomplete", "url": "https://efts.sec.gov/LATEST/search-index?keysTyped=Y%20Combinator" }, { "name": "SEC submissions API", "url": "https://data.sec.gov/submissions/CIK0001645142.json" }, { "name": "SEC company tickers JSON", "url": "https://www.sec.gov/files/company_tickers.json" }, { "name": "IAPD firm search API", "url": "https://api.adviserinfo.sec.gov/search/firm?query=Y%20Combinator" }, { "name": "IAPD firm 171730", "url": "https://adviserinfo.sec.gov/firm/summary/171730" }, { "name": "Form ADV PDF CRD 171730 dated 2026-03-27", "url": "https://reports.adviserinfo.sec.gov/reports/ADV/171730/PDF/171730.pdf" } ], "emptySearchExplanation": { "summary": "A naive EDGAR lookup for the brand name 'Y Combinator' looks empty because the operating firm has no EDGAR CIK, is not in company_tickers.json, and most fund vehicles file under abbreviated legal names that do not contain the words 'Y Combinator'.", "reasons": [ { "id": "no_public_ticker", "detail": "https://www.sec.gov/files/company_tickers.json (retrieved 2026-08-24) contains 10,403 issuers and zero records titled Y Combinator / YC. Ticker-box and 'public company' searches therefore return nothing." }, { "id": "adviser_has_no_cik", "detail": "Y Combinator Management, LLC (CRD 171730, SEC 802-80528) is an Exempt Reporting Adviser. Its 2026-03-27 Form ADV Item 1.D.(3) states CIK Numbers: No Information Filed. Form ADV is filed on IARD (IAPD), not EDGAR." }, { "id": "name_mismatch", "detail": "Legal names on EDGAR are vehicle names (YC II, L.P.; YC ESP24, L.P.; YCC20, L.P.; YCCG21, L.P.; YCP24, L.P.; YC ECO24, L.P.). Only 5 first-party issuers contain the words 'Y Combinator'. Searching 'Y Combinator LLC' or 'Y Combinator Management' as a company name returns no EDGAR registrant." }, { "id": "core_seed_funds_unfiled", "detail": "ADV lists Y COMBINATOR FUND I, LP, Y COMBINATOR FUND II, LP, and YCVC FUND I, L.P. with placeholder Form D number 021-9999999999. Those core seed vehicles have no EDGAR Form D in the retrieved data." }, { "id": "private_fund_forms_only", "detail": "Retrieved first-party EDGAR filings are exclusively Form D and D/A (Reg D 506(b) notices). There are no 10-K, 10-Q, 8-K, S-1, 13F, or 13G filings under these CIKs, so searches filtered to periodic/ownership forms are empty." }, { "id": "full_text_noise", "detail": "EFTS phrase search q=\"Y Combinator\" returns 1,002 document hits, almost all other issuers mentioning YC (portfolio-company Form Ds, S-1s, 8-Ks). That is not a company-registrant result set." } ], "whatDoesWork": [ "https://www.sec.gov/cgi-bin/browse-edgar?company=Y+Combinator&owner=exclude&action=getcompany returns 5 names containing Y COMBINATOR", "https://efts.sec.gov/LATEST/search-index?keysTyped=Y%20Combinator returns those 5 plus 3 third-party access funds", "Search abbreviated names: YC II, YC ESP, YCC20, YCCG21, YCP24, YC ECO24, YC AFFILIATES, YC PRINCIPALS", "IAPD: https://adviserinfo.sec.gov/firm/summary/171730" ] }, "adviser": { "legalName": "Y COMBINATOR MANAGEMENT, LLC", "primaryBusinessName": "Y COMBINATOR", "crd": "171730", "secFileNumber": "802-80528", "secNumberType": "802", "status": "ERA - Active", "eraEffectiveDate": "2014-10-23", "californiaEraEffectiveDate": "2018-04-19", "isSECRegistered": false, "isExemptReportingAdviser": true, "exemption": "Venture capital adviser exemption, Advisers Act section 203(l) / rule 203(l)-1 (Form ADV Item 2.B.(1); related-person exemptions listed as 203(L))", "latestAdvFilingDate": "2026-03-27", "cik": null, "cikNote": "ADV Item 1.D.(3): No Information Filed", "address": { "street1": "335 PIONEER WAY", "city": "MOUNTAIN VIEW", "state": "CA", "postalCode": "94041", "country": "United States" }, "iapdUrl": "https://adviserinfo.sec.gov/firm/summary/171730", "advPdfUrl": "https://reports.adviserinfo.sec.gov/reports/ADV/171730/PDF/171730.pdf", "iapdSearchApi": "https://api.adviserinfo.sec.gov/search/firm?query=Y%20Combinator", "privateFundsOnAdvScheduleD": 19, "relatedPersonsOnAdv": [ "YCC20 INTERNAL GP, LLC", "YCVC MANAGEMENT, LLC", "YCCG21 INTERNAL GP, LLC", "YCCG21 FUND GP, LP", "YC GP II, LLC", "YC ESP22 FUND GP, L.P.", "Y COMBINATOR FUND I GP, LLC", "YC ESP24 FUND GP, LP", "YCP24 FUND GP, LP", "YCP24 INTERNAL GP, LLC", "YC ESP24 INTERNAL GP, LLC", "YC BATCH24 LP", "YC BATCH24 INTERNAL GP, LLC", "YC BATCH20 INTERNAL GP, LLC", "YC ECO24 INTERNAL GP, LLC", "YC ECO24 FUND GP, LP", "YCC20 FUND GP, L.P.", "Y COMBINATOR FUND II GP, LLC", "YC ESP22 INTERNAL GP, LLC", "YC BATCH20, L.P.", "YCVC FUND GP, LLC", "YC CONTINUITY MANAGEMENT I, LLC" ] }, "totals": { "firstPartyEdgarEntities": 18, "firstPartyEdgarFilings": 29, "formCounts": { "D": 19, "D/A": 10 }, "firstFilingDate": "2015-06-15", "lastFilingDate": "2026-04-27", "note": "Counts are from data.sec.gov/submissions for CIKs whose business address is 335 Pioneer Way, Mountain View, CA 94041. No 13F/13G/10-K/S-1 retrieved for these CIKs." }, "entities": [ { "legalName": "Y COMBINATOR CONTINUITY FUND I, L.P.", "cik": "0001645142", "entityType": "other", "stateOfIncorporation": "DE", "fiscalYearEnd": "1231", "phone": "415-568-2244", "address": { "street1": "335 PIONEER WAY", "city": "MOUNTAIN VIEW", "state": "CA", "zip": "94041" }, "confirmedYcAffiliate": true, "confirmation": "SEC submissions JSON business address 335 PIONEER WAY, MOUNTAIN VIEW, CA 94041", "formTypes": { "D": 1 }, "filingCount": 1, "firstFilingDate": "2015-06-15", "lastFilingDate": "2015-06-15", "filings": [ { "form": "D", "filingDate": "2015-06-15", "accessionNumber": "0001645142-15-000001", "fileNumber": "021-241804", "items": "06b,3C,3C.1,3C.7", "indexUrl": "https://www.sec.gov/Archives/edgar/data/1645142/000164514215000001/0001645142-15-000001-index.html", "browseUrl": "https://www.sec.gov/cgi-bin/browse-edgar?action=getcompany&CIK=0001645142&type=&dateb=&owner=exclude&count=40" } ], "submissionsApi": "https://data.sec.gov/submissions/CIK0001645142.json", "companyPage": "https://www.sec.gov/cgi-bin/browse-edgar?action=getcompany&CIK=0001645142&owner=exclude&count=40" }, { "legalName": "Y Combinator Continuity Affiliates Fund I, L.P.", "cik": "0001670489", "entityType": "other", "stateOfIncorporation": "DE", "fiscalYearEnd": "1231", "phone": "415-516-4158", "address": { "street1": "335 PIONEER WAY", "city": "MOUNTAIN VIEW", "state": "CA", "zip": "94041" }, "confirmedYcAffiliate": true, "confirmation": "SEC submissions JSON business address 335 PIONEER WAY, MOUNTAIN VIEW, CA 94041", "formTypes": { "D/A": 1, "D": 1 }, "filingCount": 2, "firstFilingDate": "2016-03-25", "lastFilingDate": "2016-04-04", "filings": [ { "form": "D/A", "filingDate": "2016-04-04", "accessionNumber": "0001670489-16-000002", "fileNumber": "021-260040", "items": "06b,3C,3C.1", "indexUrl": "https://www.sec.gov/Archives/edgar/data/1670489/000167048916000002/0001670489-16-000002-index.html", "browseUrl": "https://www.sec.gov/cgi-bin/browse-edgar?action=getcompany&CIK=0001670489&type=&dateb=&owner=exclude&count=40" }, { "form": "D", "filingDate": "2016-03-25", "accessionNumber": "0001670489-16-000001", "fileNumber": "021-260040", "items": "06b,3C,3C.1,3C.7", "indexUrl": "https://www.sec.gov/Archives/edgar/data/1670489/000167048916000001/0001670489-16-000001-index.html", "browseUrl": "https://www.sec.gov/cgi-bin/browse-edgar?action=getcompany&CIK=0001670489&type=&dateb=&owner=exclude&count=40" } ], "submissionsApi": "https://data.sec.gov/submissions/CIK0001670489.json", "companyPage": "https://www.sec.gov/cgi-bin/browse-edgar?action=getcompany&CIK=0001670489&owner=exclude&count=40" }, { "legalName": "YC II, L.P.", "cik": "0001723360", "entityType": "other", "stateOfIncorporation": "DE", "fiscalYearEnd": "1231", "phone": "415-568-2244", "address": { "street1": "335 PIONEER WAY", "city": "MOUNTAIN VIEW", "state": "CA", "zip": "94041" }, "confirmedYcAffiliate": true, "confirmation": "SEC submissions JSON business address 335 PIONEER WAY, MOUNTAIN VIEW, CA 94041", "formTypes": { "D/A": 1, "D": 2 }, "filingCount": 3, "firstFilingDate": "2017-11-29", "lastFilingDate": "2017-11-29", "filings": [ { "form": "D/A", "filingDate": "2017-11-29", "accessionNumber": "0001723360-17-000003", "fileNumber": "021-299633", "items": "06b,3C,3C.7", "indexUrl": "https://www.sec.gov/Archives/edgar/data/1723360/000172336017000003/0001723360-17-000003-index.html", "browseUrl": "https://www.sec.gov/cgi-bin/browse-edgar?action=getcompany&CIK=0001723360&type=&dateb=&owner=exclude&count=40" }, { "form": "D", "filingDate": "2017-11-29", "accessionNumber": "0001723360-17-000002", "fileNumber": "021-299633", "items": "06b,3C,3C.1", "indexUrl": "https://www.sec.gov/Archives/edgar/data/1723360/000172336017000002/0001723360-17-000002-index.html", "browseUrl": "https://www.sec.gov/cgi-bin/browse-edgar?action=getcompany&CIK=0001723360&type=&dateb=&owner=exclude&count=40" }, { "form": "D", "filingDate": "2017-11-29", "accessionNumber": "0001723360-17-000001", "fileNumber": "021-299631", "items": "06b,3C,3C.7", "indexUrl": "https://www.sec.gov/Archives/edgar/data/1723360/000172336017000001/0001723360-17-000001-index.html", "browseUrl": "https://www.sec.gov/cgi-bin/browse-edgar?action=getcompany&CIK=0001723360&type=&dateb=&owner=exclude&count=40" } ], "submissionsApi": "https://data.sec.gov/submissions/CIK0001723360.json", "companyPage": "https://www.sec.gov/cgi-bin/browse-edgar?action=getcompany&CIK=0001723360&owner=exclude&count=40" }, { "legalName": "YC III, L.P.", "cik": "0001723395", "entityType": "other", "stateOfIncorporation": "DE", "fiscalYearEnd": "1231", "phone": "415-568-2244", "address": { "street1": "335 PIONEER WAY", "city": "MOUNTAIN VIEW", "state": "CA", "zip": "94041" }, "confirmedYcAffiliate": true, "confirmation": "SEC submissions JSON business address 335 PIONEER WAY, MOUNTAIN VIEW, CA 94041", "formTypes": { "D": 1 }, "filingCount": 1, "firstFilingDate": "2017-11-29", "lastFilingDate": "2017-11-29", "filings": [ { "form": "D", "filingDate": "2017-11-29", "accessionNumber": "0001723395-17-000001", "fileNumber": "021-299632", "items": "06b,3C,3C.7", "indexUrl": "https://www.sec.gov/Archives/edgar/data/1723395/000172339517000001/0001723395-17-000001-index.html", "browseUrl": "https://www.sec.gov/cgi-bin/browse-edgar?action=getcompany&CIK=0001723395&type=&dateb=&owner=exclude&count=40" } ], "submissionsApi": "https://data.sec.gov/submissions/CIK0001723395.json", "companyPage": "https://www.sec.gov/cgi-bin/browse-edgar?action=getcompany&CIK=0001723395&owner=exclude&count=40" }, { "legalName": "YC AFFILIATES FUND II, L.P.", "cik": "0001724748", "entityType": "other", "stateOfIncorporation": "DE", "fiscalYearEnd": "1231", "phone": "415-568-2244", "address": { "street1": "335 PIONEER WAY", "city": "MOUNTAIN VIEW", "state": "CA", "zip": "94041" }, "confirmedYcAffiliate": true, "confirmation": "SEC submissions JSON business address 335 PIONEER WAY, MOUNTAIN VIEW, CA 94041", "formTypes": { "D": 1 }, "filingCount": 1, "firstFilingDate": "2017-12-08", "lastFilingDate": "2017-12-08", "filings": [ { "form": "D", "filingDate": "2017-12-08", "accessionNumber": "0001724748-17-000001", "fileNumber": "021-300316", "items": "06b,3C,3C.1", "indexUrl": "https://www.sec.gov/Archives/edgar/data/1724748/000172474817000001/0001724748-17-000001-index.html", "browseUrl": "https://www.sec.gov/cgi-bin/browse-edgar?action=getcompany&CIK=0001724748&type=&dateb=&owner=exclude&count=40" } ], "submissionsApi": "https://data.sec.gov/submissions/CIK0001724748.json", "companyPage": "https://www.sec.gov/cgi-bin/browse-edgar?action=getcompany&CIK=0001724748&owner=exclude&count=40" }, { "legalName": "YC PRINCIPALS FUND II, L.P.", "cik": "0001724750", "entityType": "other", "stateOfIncorporation": "DE", "fiscalYearEnd": "1231", "phone": "415-568-2244", "address": { "street1": "335 PIONEER WAY", "city": "MOUNTAIN VIEW", "state": "CA", "zip": "94041" }, "confirmedYcAffiliate": true, "confirmation": "SEC submissions JSON business address 335 PIONEER WAY, MOUNTAIN VIEW, CA 94041", "formTypes": { "D": 1 }, "filingCount": 1, "firstFilingDate": "2017-12-08", "lastFilingDate": "2017-12-08", "filings": [ { "form": "D", "filingDate": "2017-12-08", "accessionNumber": "0001724750-17-000001", "fileNumber": "021-300313", "items": "06b,3C,3C.1", "indexUrl": "https://www.sec.gov/Archives/edgar/data/1724750/000172475017000001/0001724750-17-000001-index.html", "browseUrl": "https://www.sec.gov/cgi-bin/browse-edgar?action=getcompany&CIK=0001724750&type=&dateb=&owner=exclude&count=40" } ], "submissionsApi": "https://data.sec.gov/submissions/CIK0001724750.json", "companyPage": "https://www.sec.gov/cgi-bin/browse-edgar?action=getcompany&CIK=0001724750&owner=exclude&count=40" }, { "legalName": "YC PRINCIPALS FUND III, L.P.", "cik": "0001724749", "entityType": "other", "stateOfIncorporation": "DE", "fiscalYearEnd": "1231", "phone": "415-568-2244", "address": { "street1": "335 PIONEER WAY", "city": "MOUNTAIN VIEW", "state": "CA", "zip": "94041" }, "confirmedYcAffiliate": true, "confirmation": "SEC submissions JSON business address 335 PIONEER WAY, MOUNTAIN VIEW, CA 94041", "formTypes": { "D": 1 }, "filingCount": 1, "firstFilingDate": "2017-12-08", "lastFilingDate": "2017-12-08", "filings": [ { "form": "D", "filingDate": "2017-12-08", "accessionNumber": "0001724749-17-000001", "fileNumber": "021-300314", "items": "06b,3C,3C.1", "indexUrl": "https://www.sec.gov/Archives/edgar/data/1724749/000172474917000001/0001724749-17-000001-index.html", "browseUrl": "https://www.sec.gov/cgi-bin/browse-edgar?action=getcompany&CIK=0001724749&type=&dateb=&owner=exclude&count=40" } ], "submissionsApi": "https://data.sec.gov/submissions/CIK0001724749.json", "companyPage": "https://www.sec.gov/cgi-bin/browse-edgar?action=getcompany&CIK=0001724749&owner=exclude&count=40" }, { "legalName": "YC Affiliates Fund II (QP), L.P.", "cik": "0001725398", "entityType": "other", "stateOfIncorporation": "DE", "fiscalYearEnd": "1231", "phone": "415-568-2244", "address": { "street1": "335 PIONEER WAY", "city": "MOUNTAIN VIEW", "state": "CA", "zip": "94041" }, "confirmedYcAffiliate": true, "confirmation": "SEC submissions JSON business address 335 PIONEER WAY, MOUNTAIN VIEW, CA 94041", "formTypes": { "D": 1 }, "filingCount": 1, "firstFilingDate": "2017-12-15", "lastFilingDate": "2017-12-15", "filings": [ { "form": "D", "filingDate": "2017-12-15", "accessionNumber": "0001725398-17-000001", "fileNumber": "021-300828", "items": "06b,3C,3C.7", "indexUrl": "https://www.sec.gov/Archives/edgar/data/1725398/000172539817000001/0001725398-17-000001-index.html", "browseUrl": "https://www.sec.gov/cgi-bin/browse-edgar?action=getcompany&CIK=0001725398&type=&dateb=&owner=exclude&count=40" } ], "submissionsApi": "https://data.sec.gov/submissions/CIK0001725398.json", "companyPage": "https://www.sec.gov/cgi-bin/browse-edgar?action=getcompany&CIK=0001725398&owner=exclude&count=40" }, { "legalName": "YC Affiliates Fund IIA, L.P.", "cik": "0001789526", "entityType": "other", "stateOfIncorporation": "DE", "fiscalYearEnd": "1231", "phone": "(415) 568-2244", "address": { "street1": "335 PIONEER WAY", "city": "MOUNTAIN VIEW", "state": "CA", "zip": "94041" }, "confirmedYcAffiliate": true, "confirmation": "SEC submissions JSON business address 335 PIONEER WAY, MOUNTAIN VIEW, CA 94041", "formTypes": { "D": 1 }, "filingCount": 1, "firstFilingDate": "2019-10-03", "lastFilingDate": "2019-10-03", "filings": [ { "form": "D", "filingDate": "2019-10-03", "accessionNumber": "0001789526-19-000001", "fileNumber": "021-350333", "items": "06b,3C,3C.1", "indexUrl": "https://www.sec.gov/Archives/edgar/data/1789526/000178952619000001/0001789526-19-000001-index.html", "browseUrl": "https://www.sec.gov/cgi-bin/browse-edgar?action=getcompany&CIK=0001789526&type=&dateb=&owner=exclude&count=40" } ], "submissionsApi": "https://data.sec.gov/submissions/CIK0001789526.json", "companyPage": "https://www.sec.gov/cgi-bin/browse-edgar?action=getcompany&CIK=0001789526&owner=exclude&count=40" }, { "legalName": "Y Combinator ES20, LLC", "cik": "0001811911", "entityType": "other", "stateOfIncorporation": "DE", "fiscalYearEnd": "1231", "phone": "415-568-2244", "address": { "street1": "335 PIONEER WAY", "city": "MOUNTAIN VIEW", "state": "CA", "zip": "94041" }, "confirmedYcAffiliate": true, "confirmation": "SEC submissions JSON business address 335 PIONEER WAY, MOUNTAIN VIEW, CA 94041", "formTypes": { "D": 1 }, "filingCount": 1, "firstFilingDate": "2020-05-14", "lastFilingDate": "2020-05-14", "filings": [ { "form": "D", "filingDate": "2020-05-14", "accessionNumber": "0001315863-20-000444", "fileNumber": "021-366900", "items": "06b,3C,3C.7", "indexUrl": "https://www.sec.gov/Archives/edgar/data/1811911/000131586320000444/0001315863-20-000444-index.html", "browseUrl": "https://www.sec.gov/cgi-bin/browse-edgar?action=getcompany&CIK=0001811911&type=&dateb=&owner=exclude&count=40" } ], "submissionsApi": "https://data.sec.gov/submissions/CIK0001811911.json", "companyPage": "https://www.sec.gov/cgi-bin/browse-edgar?action=getcompany&CIK=0001811911&owner=exclude&count=40" }, { "legalName": "YCC20, L.P.", "cik": "0001814669", "entityType": "other", "stateOfIncorporation": "DE", "fiscalYearEnd": "1231", "phone": "415-598-7720", "address": { "street1": "335 PIONEER WAY", "city": "MOUNTAIN VIEW", "state": "CA", "zip": "94041" }, "confirmedYcAffiliate": true, "confirmation": "SEC submissions JSON business address 335 PIONEER WAY, MOUNTAIN VIEW, CA 94041", "formTypes": { "D": 1 }, "filingCount": 1, "firstFilingDate": "2020-06-12", "lastFilingDate": "2020-06-12", "filings": [ { "form": "D", "filingDate": "2020-06-12", "accessionNumber": "0001315863-20-000523", "fileNumber": "021-368810", "items": "06b,3C,3C.7", "indexUrl": "https://www.sec.gov/Archives/edgar/data/1814669/000131586320000523/0001315863-20-000523-index.html", "browseUrl": "https://www.sec.gov/cgi-bin/browse-edgar?action=getcompany&CIK=0001814669&type=&dateb=&owner=exclude&count=40" } ], "submissionsApi": "https://data.sec.gov/submissions/CIK0001814669.json", "companyPage": "https://www.sec.gov/cgi-bin/browse-edgar?action=getcompany&CIK=0001814669&owner=exclude&count=40" }, { "legalName": "YCCG21, L.P.", "cik": "0001868863", "entityType": "other", "stateOfIncorporation": "DE", "fiscalYearEnd": "1231", "phone": "415-568-2244", "address": { "street1": "335 PIONEER WAY", "city": "MOUNTAIN VIEW", "state": "CA", "zip": "94041" }, "confirmedYcAffiliate": true, "confirmation": "SEC submissions JSON business address 335 PIONEER WAY, MOUNTAIN VIEW, CA 94041", "formTypes": { "D/A": 6, "D": 1 }, "filingCount": 7, "firstFilingDate": "2021-06-24", "lastFilingDate": "2022-02-11", "filings": [ { "form": "D/A", "filingDate": "2022-02-11", "accessionNumber": "0001315863-22-000112", "fileNumber": "021-404121", "items": "06b,3C,3C.1", "indexUrl": "https://www.sec.gov/Archives/edgar/data/1868863/000131586322000112/0001315863-22-000112-index.html", "browseUrl": "https://www.sec.gov/cgi-bin/browse-edgar?action=getcompany&CIK=0001868863&type=&dateb=&owner=exclude&count=40" }, { "form": "D/A", "filingDate": "2021-09-01", "accessionNumber": "0001315863-21-000723", "fileNumber": "021-404121", "items": "06b,3C,3C.1", "indexUrl": "https://www.sec.gov/Archives/edgar/data/1868863/000131586321000723/0001315863-21-000723-index.html", "browseUrl": "https://www.sec.gov/cgi-bin/browse-edgar?action=getcompany&CIK=0001868863&type=&dateb=&owner=exclude&count=40" }, { "form": "D/A", "filingDate": "2021-08-02", "accessionNumber": "0001315863-21-000640", "fileNumber": "021-404121", "items": "06b,3C,3C.1", "indexUrl": "https://www.sec.gov/Archives/edgar/data/1868863/000131586321000640/0001315863-21-000640-index.html", "browseUrl": "https://www.sec.gov/cgi-bin/browse-edgar?action=getcompany&CIK=0001868863&type=&dateb=&owner=exclude&count=40" }, { "form": "D/A", "filingDate": "2021-07-14", "accessionNumber": "0001315863-21-000596", "fileNumber": "021-404121", "items": "06b,3C,3C.1", "indexUrl": "https://www.sec.gov/Archives/edgar/data/1868863/000131586321000596/0001315863-21-000596-index.html", "browseUrl": "https://www.sec.gov/cgi-bin/browse-edgar?action=getcompany&CIK=0001868863&type=&dateb=&owner=exclude&count=40" }, { "form": "D/A", "filingDate": "2021-07-06", "accessionNumber": "0001315863-21-000566", "fileNumber": "021-404121", "items": "06b,3C,3C.1", "indexUrl": "https://www.sec.gov/Archives/edgar/data/1868863/000131586321000566/0001315863-21-000566-index.html", "browseUrl": "https://www.sec.gov/cgi-bin/browse-edgar?action=getcompany&CIK=0001868863&type=&dateb=&owner=exclude&count=40" }, { "form": "D/A", "filingDate": "2021-06-29", "accessionNumber": "0001315863-21-000546", "fileNumber": "021-404121", "items": "06b,3C,3C.1", "indexUrl": "https://www.sec.gov/Archives/edgar/data/1868863/000131586321000546/0001315863-21-000546-index.html", "browseUrl": "https://www.sec.gov/cgi-bin/browse-edgar?action=getcompany&CIK=0001868863&type=&dateb=&owner=exclude&count=40" }, { "form": "D", "filingDate": "2021-06-24", "accessionNumber": "0001315863-21-000519", "fileNumber": "021-404121", "items": "06b,3C,3C.1", "indexUrl": "https://www.sec.gov/Archives/edgar/data/1868863/000131586321000519/0001315863-21-000519-index.html", "browseUrl": "https://www.sec.gov/cgi-bin/browse-edgar?action=getcompany&CIK=0001868863&type=&dateb=&owner=exclude&count=40" } ], "submissionsApi": "https://data.sec.gov/submissions/CIK0001868863.json", "companyPage": "https://www.sec.gov/cgi-bin/browse-edgar?action=getcompany&CIK=0001868863&owner=exclude&count=40" }, { "legalName": "YC ESP22, L.P.", "cik": "0001904166", "entityType": "other", "stateOfIncorporation": "DE", "fiscalYearEnd": "1231", "phone": "415.568.2244", "address": { "street1": "335 PIONEER WAY", "city": "MOUNTAIN VIEW", "state": "CA", "zip": "94041" }, "confirmedYcAffiliate": true, "confirmation": "SEC submissions JSON business address 335 PIONEER WAY, MOUNTAIN VIEW, CA 94041", "formTypes": { "D/A": 2, "D": 1 }, "filingCount": 3, "firstFilingDate": "2022-01-18", "lastFilingDate": "2022-02-11", "filings": [ { "form": "D/A", "filingDate": "2022-02-11", "accessionNumber": "0001315863-22-000111", "fileNumber": "021-429687", "items": "06b,3C,3C.1", "indexUrl": "https://www.sec.gov/Archives/edgar/data/1904166/000131586322000111/0001315863-22-000111-index.html", "browseUrl": "https://www.sec.gov/cgi-bin/browse-edgar?action=getcompany&CIK=0001904166&type=&dateb=&owner=exclude&count=40" }, { "form": "D/A", "filingDate": "2022-01-24", "accessionNumber": "0001315863-22-000069", "fileNumber": "021-429687", "items": "06b,3C,3C.1", "indexUrl": "https://www.sec.gov/Archives/edgar/data/1904166/000131586322000069/0001315863-22-000069-index.html", "browseUrl": "https://www.sec.gov/cgi-bin/browse-edgar?action=getcompany&CIK=0001904166&type=&dateb=&owner=exclude&count=40" }, { "form": "D", "filingDate": "2022-01-18", "accessionNumber": "0001315863-22-000051", "fileNumber": "021-429687", "items": "06b,3C,3C.1", "indexUrl": "https://www.sec.gov/Archives/edgar/data/1904166/000131586322000051/0001315863-22-000051-index.html", "browseUrl": "https://www.sec.gov/cgi-bin/browse-edgar?action=getcompany&CIK=0001904166&type=&dateb=&owner=exclude&count=40" } ], "submissionsApi": "https://data.sec.gov/submissions/CIK0001904166.json", "companyPage": "https://www.sec.gov/cgi-bin/browse-edgar?action=getcompany&CIK=0001904166&owner=exclude&count=40" }, { "legalName": "Y Combinator ES24, LLC", "cik": "0002018779", "entityType": "other", "stateOfIncorporation": "DE", "fiscalYearEnd": "1231", "phone": "(415) 568-2244", "address": { "street1": "335 PIONEER WAY", "city": "MOUNTAIN VIEW", "state": "CA", "zip": "94041" }, "confirmedYcAffiliate": true, "confirmation": "SEC submissions JSON business address 335 PIONEER WAY, MOUNTAIN VIEW, CA 94041", "formTypes": { "D": 1 }, "filingCount": 1, "firstFilingDate": "2024-04-09", "lastFilingDate": "2024-04-09", "filings": [ { "form": "D", "filingDate": "2024-04-09", "accessionNumber": "0001315863-24-000387", "fileNumber": "021-510104", "items": "06b,3C,3C.7", "indexUrl": "https://www.sec.gov/Archives/edgar/data/2018779/000131586324000387/0001315863-24-000387-index.html", "browseUrl": "https://www.sec.gov/cgi-bin/browse-edgar?action=getcompany&CIK=0002018779&type=&dateb=&owner=exclude&count=40" } ], "submissionsApi": "https://data.sec.gov/submissions/CIK0002018779.json", "companyPage": "https://www.sec.gov/cgi-bin/browse-edgar?action=getcompany&CIK=0002018779&owner=exclude&count=40" }, { "legalName": "YC ESP24, L.P.", "cik": "0002018782", "entityType": "other", "stateOfIncorporation": "DE", "fiscalYearEnd": "1231", "phone": "(415) 568-2244", "address": { "street1": "335 PIONEER WAY", "city": "MOUNTAIN VIEW", "state": "CA", "zip": "94041" }, "confirmedYcAffiliate": true, "confirmation": "SEC submissions JSON business address 335 PIONEER WAY, MOUNTAIN VIEW, CA 94041", "formTypes": { "D": 1 }, "filingCount": 1, "firstFilingDate": "2024-04-09", "lastFilingDate": "2024-04-09", "filings": [ { "form": "D", "filingDate": "2024-04-09", "accessionNumber": "0001315863-24-000388", "fileNumber": "021-510109", "items": "06b,3C,3C.7", "indexUrl": "https://www.sec.gov/Archives/edgar/data/2018782/000131586324000388/0001315863-24-000388-index.html", "browseUrl": "https://www.sec.gov/cgi-bin/browse-edgar?action=getcompany&CIK=0002018782&type=&dateb=&owner=exclude&count=40" } ], "submissionsApi": "https://data.sec.gov/submissions/CIK0002018782.json", "companyPage": "https://www.sec.gov/cgi-bin/browse-edgar?action=getcompany&CIK=0002018782&owner=exclude&count=40" }, { "legalName": "YCP24, L.P.", "cik": "0002018788", "entityType": "other", "stateOfIncorporation": "DE", "fiscalYearEnd": "1231", "phone": "(415) 568-2244", "address": { "street1": "335 PIONEER WAY", "city": "MOUNTAIN VIEW", "state": "CA", "zip": "94041" }, "confirmedYcAffiliate": true, "confirmation": "SEC submissions JSON business address 335 PIONEER WAY, MOUNTAIN VIEW, CA 94041", "formTypes": { "D": 1 }, "filingCount": 1, "firstFilingDate": "2024-04-09", "lastFilingDate": "2024-04-09", "filings": [ { "form": "D", "filingDate": "2024-04-09", "accessionNumber": "0001315863-24-000389", "fileNumber": "021-510111", "items": "06b,3C,3C.7", "indexUrl": "https://www.sec.gov/Archives/edgar/data/2018788/000131586324000389/0001315863-24-000389-index.html", "browseUrl": "https://www.sec.gov/cgi-bin/browse-edgar?action=getcompany&CIK=0002018788&type=&dateb=&owner=exclude&count=40" } ], "submissionsApi": "https://data.sec.gov/submissions/CIK0002018788.json", "companyPage": "https://www.sec.gov/cgi-bin/browse-edgar?action=getcompany&CIK=0002018788&owner=exclude&count=40" }, { "legalName": "YC ECO24, L.P.", "cik": "0002043687", "entityType": "other", "stateOfIncorporation": "DE", "fiscalYearEnd": "1231", "phone": "415-568-2244", "address": { "street1": "335 PIONEER WAY", "city": "MOUNTAIN VIEW", "state": "CA", "zip": "94041" }, "confirmedYcAffiliate": true, "confirmation": "SEC submissions JSON business address 335 PIONEER WAY, MOUNTAIN VIEW, CA 94041", "formTypes": { "D": 1 }, "filingCount": 1, "firstFilingDate": "2024-11-21", "lastFilingDate": "2024-11-21", "filings": [ { "form": "D", "filingDate": "2024-11-21", "accessionNumber": "0001315863-24-000835", "fileNumber": "021-530033", "items": "06b,3C,3C.7", "indexUrl": "https://www.sec.gov/Archives/edgar/data/2043687/000131586324000835/0001315863-24-000835-index.html", "browseUrl": "https://www.sec.gov/cgi-bin/browse-edgar?action=getcompany&CIK=0002043687&type=&dateb=&owner=exclude&count=40" } ], "submissionsApi": "https://data.sec.gov/submissions/CIK0002043687.json", "companyPage": "https://www.sec.gov/cgi-bin/browse-edgar?action=getcompany&CIK=0002043687&owner=exclude&count=40" }, { "legalName": "Y Combinator ES26, LLC", "cik": "0002131827", "entityType": "other", "stateOfIncorporation": "DE", "fiscalYearEnd": "1231", "phone": "(415) 568-2244", "address": { "street1": "335 PIONEER WAY", "city": "MOUNTAIN VIEW", "state": "CA", "zip": "94041" }, "confirmedYcAffiliate": true, "confirmation": "SEC submissions JSON business address 335 PIONEER WAY, MOUNTAIN VIEW, CA 94041", "formTypes": { "D": 1 }, "filingCount": 1, "firstFilingDate": "2026-04-27", "lastFilingDate": "2026-04-27", "filings": [ { "form": "D", "filingDate": "2026-04-27", "accessionNumber": "0001315863-26-000366", "fileNumber": "021-581973", "items": "06b,3C,3C.7", "indexUrl": "https://www.sec.gov/Archives/edgar/data/2131827/000131586326000366/0001315863-26-000366-index.html", "browseUrl": "https://www.sec.gov/cgi-bin/browse-edgar?action=getcompany&CIK=0002131827&type=&dateb=&owner=exclude&count=40" } ], "submissionsApi": "https://data.sec.gov/submissions/CIK0002131827.json", "companyPage": "https://www.sec.gov/cgi-bin/browse-edgar?action=getcompany&CIK=0002131827&owner=exclude&count=40" } ], "advPrivateFunds": [ { "name": "Y COMBINATOR CONTINUITY AFFILIATES FUND I, L.P.", "pfid": "805-9701674013", "formDFileNumber": "021-260040", "cik": "0001670489" }, { "name": "Y COMBINATOR CONTINUITY FUND I, L.P.", "pfid": "805-1826479155", "formDFileNumber": "021-241804", "cik": "0001645142" }, { "name": "Y COMBINATOR ES20, LLC", "pfid": "805-7199467662", "formDFileNumber": "021-366900", "cik": "0001811911" }, { "name": "Y COMBINATOR ES24, LLC", "pfid": "805-6724321857", "formDFileNumber": "021-510104", "cik": "0002018779" }, { "name": "Y COMBINATOR FUND I, LP", "pfid": "805-4956735823", "formDFileNumber": null, "formDPlaceholder": "021-9999999999", "cik": null, "note": "ADV lists placeholder Form D file number 021-9999999999; no EDGAR entity found" }, { "name": "Y COMBINATOR FUND II, LP", "pfid": "805-6268419859", "formDFileNumber": null, "formDPlaceholder": "021-9999999999", "cik": null, "note": "ADV lists placeholder Form D file number 021-9999999999; no EDGAR entity found" }, { "name": "YC AFFILIATES FUND II (QP), L.P.", "pfid": "805-1857617324", "formDFileNumber": "021-300828", "cik": "0001725398" }, { "name": "YC AFFILIATES FUND II, L.P.", "pfid": "805-1705679222", "formDFileNumber": "021-300316", "cik": "0001724748" }, { "name": "YC AFFILIATES FUND IIA, LP", "pfid": "805-6853222771", "formDFileNumber": "021-350333", "cik": "0001789526" }, { "name": "YC ECO24, L.P.", "pfid": "805-6696141085", "formDFileNumber": "021-530033", "cik": "0002043687" }, { "name": "YC ESP22, L.P.", "pfid": "805-7670369564", "formDFileNumber": "021-429687", "cik": "0001904166" }, { "name": "YC ESP24, L.P.", "pfid": "805-8963607809", "formDFileNumber": "021-510109", "cik": "0002018782" }, { "name": "YC II, L.P.", "pfid": "805-5993086799", "formDFileNumber": "021-299633", "cik": "0001723360" }, { "name": "YC PRINCIPALS FUND II, L.P.", "pfid": "805-8306455308", "formDFileNumber": "021-300313", "cik": "0001724750" }, { "name": "YCC20, L.P.", "pfid": "805-3923629936", "formDFileNumber": "021-368810", "cik": "0001814669" }, { "name": "YCCG21, L.P.", "pfid": "805-5349142368", "formDFileNumber": "021-404121", "cik": "0001868863" }, { "name": "YCP24, L.P.", "pfid": "805-3327603200", "formDFileNumber": "021-510111", "cik": "0002018788" }, { "name": "YCVC FUND I, L.P.", "pfid": "805-4171028693", "formDFileNumber": null, "formDPlaceholder": "021-9999999999", "cik": null, "note": "ADV lists placeholder Form D file number 021-9999999999; no EDGAR entity found" }, { "name": "YCVC W14, LLC", "pfid": "805-9056701841", "formDFileNumber": null, "cik": null, "note": "Listed on ADV Schedule D 7.B; no Form D file number and no EDGAR entity found" } ], "edgarEntitiesNotOnLatestAdv7B": [ { "name": "Y Combinator ES26, LLC", "cik": "0002131827", "note": "Form D filed 2026-04-27, after ADV annual amendment dated 2026-03-27" }, { "name": "YC III, L.P.", "cik": "0001723395", "note": "Form D 2017-11-29; not listed on 2026-03-27 ADV Schedule D 7.B (likely legacy/wound-down)" }, { "name": "YC PRINCIPALS FUND III, L.P.", "cik": "0001724749", "note": "Form D 2017-12-08; not listed on 2026-03-27 ADV Schedule D 7.B (likely legacy/wound-down)" } ], "rejectedLookalikes": [ { "legalName": "YC Holdings LLC", "cik": "0001468199", "whyRejected": "Form D 2009-07-20; address ONE BOSTON PLACE, SUITE 2300, BOSTON MA 02108 \u2014 not Y Combinator" }, { "legalName": "YC ALUMS FUND 2021 LLC", "cik": "0001885389", "whyRejected": "Form D 2021-09-29; address 30 N GOULD ST, STE R, SHERIDAN WY 82801 \u2014 not 335 Pioneer Way" }, { "legalName": "YCG, LLC / YCG Mutual Funds", "cik": "0001558372", "note": "Unrelated Austin, TX adviser CRD 145769 (ycgfunds.com)" }, { "legalName": "YCT MANAGEMENT LLC", "crd": "312317", "note": "Unrelated ERA; not Y Combinator" }, { "legalName": "Y/Cap Management, LLC", "cik": "0001569853", "note": "Unrelated NY 13F filer" }, { "legalName": "OT YC Fund I/II/III/IV, LLC", "ciks": [ "0001878754", "0001903600", "0001931768", "0002039271" ], "note": "Third-party access vehicles; names contain YC but not retrieved as 335 Pioneer Way issuers" } ], "thirdPartyAccessFundsUsingYcName": [ { "legalName": "Stonks Y Combinator Summer 2022 Access Fund, a Series of Stonks Funds, LP", "cik": "0001947577", "filingCount": 1, "formTypes": { "D": 1 }, "firstFilingDate": "2022-09-22", "lastFilingDate": "2022-09-22", "address": "119 SOUTH MAIN STREET, SUITE 220, SEATTLE WA 98104", "representative": [ { "form": "D", "filingDate": "2022-09-22", "accessionNumber": "0001947577-22-000002", "fileNumber": "021-459561", "indexUrl": "https://www.sec.gov/Archives/edgar/data/1947577/000194757722000002/0001947577-22-000002-index.html" } ] }, { "legalName": "Stonks Y Combinator Winter 2023 Access Fund, a series of Stonks Funds, LP", "cik": "0001970280", "filingCount": 2, "formTypes": { "D": 1, "D/A": 1 }, "firstFilingDate": "2023-03-21", "lastFilingDate": "2023-03-21", "address": "119 SOUTH MAIN STREET, SUITE 220, SEATTLE WA 98104", "representative": [ { "form": "D", "filingDate": "2023-03-21", "accessionNumber": "0001970280-23-000002", "fileNumber": "021-476437", "indexUrl": "https://www.sec.gov/Archives/edgar/data/1970280/000197028023000002/0001970280-23-000002-index.html" }, { "form": "D/A", "filingDate": "2023-03-21", "accessionNumber": "0001970280-23-000003", "fileNumber": "021-476437", "indexUrl": "https://www.sec.gov/Archives/edgar/data/1970280/000197028023000003/0001970280-23-000003-index.html" } ] }, { "legalName": "GCW Access - Y Combinator, L.P.", "cik": "0002131674", "filingCount": 1, "formTypes": { "D": 1 }, "firstFilingDate": "2026-05-15", "lastFilingDate": "2026-05-15", "address": "502 WAVERLEY ST. STE. 2, PALO ALTO CA 94301", "representative": [ { "form": "D", "filingDate": "2026-05-15", "accessionNumber": "0001012975-26-000436", "fileNumber": "021-584258", "indexUrl": "https://www.sec.gov/Archives/edgar/data/2131674/000101297526000436/0001012975-26-000436-index.html" } ] } ], "formDMentionsOfYCombinator": { "eftsQuery": "https://efts.sec.gov/LATEST/search-index?q=%22Y+Combinator%22&forms=D&dateRange=custom&startdt=2005-01-01&enddt=2026-08-24", "totalFormDHits": 28, "note": "EFTS full-text Form D search for the phrase 'Y Combinator' returned 28 filings. Most are portfolio companies listing Y Combinator as a related person/investor, plus the first-party Continuity/ES vehicles whose legal names contain those words, plus the third-party Stonks/GCW access funds. Abbreviated first-party vehicles (YC II, YC ESP24, YCC20, etc.) often do not contain the phrase and are under-counted by this query.", "examplePortfolioCompanyHits": [ { "name": "Poolit, Inc.", "cik": "0001921904" }, { "name": "Spaciously, Inc.", "cik": "0001959396" }, { "name": "Bloom Credit, Inc", "cik": "0001720741" }, { "name": "TurboDocx, Inc.", "cik": "0002015141" }, { "name": "HomeHero AI, Inc.", "cik": "0002128781" } ] } }