Y Combinator logo

Y Combinator

AcceleratorSEC venture capital fund adviser· Mountain View, CaliforniaYCOMBINATOR.COM

Y Combinator created a new model for funding early stage startups. Four times a year we invest in a large number of startups.

In the firm's own words, from its website.

Reported fund assets
$22B
sum of its funds' Form ADV filings, last 30 months
New companies, 12 mo
31
Investment team
25
Latest vintage
2026
Contact decision makers
More
Ask DFX about thisView relationshipsFind contactsInvestments (669)Team (80)Funds
As of · the latest observation of this organization; filed figures are as of its latest Form ADV

78 additional team members, 37 additional co-investors and affiliates, 225 additional investments, funds and LPs, 26 events, 1 verified contact (1 firm phone)

Every relationship, signal and contact on this record, with the source on each.

Includes 3 days of DFX Intelligence. Then $199/month unless canceled.

What matters now

  1. 3 vehicles
    on Form D, 18 months

    3 vehicles filed a Form D in the last 18 months, the latest Yca26 on 27 Apr 2026. $2.67B reported sold so far.

    A Form D is filed when a vehicle takes its first money, so these are open to LPs now.

    FactSEC Form D filingsFor LPs, fund-of-funds, placement agentsVehicles →
  2. 31 companies
    new in 12 months

    31 new companies in the last 12 months.

    A firm writing cheques this quarter is one a founder can pitch now.

    Factfunding announcements, Form D, the firm's portfolio pageInvestments →
  3. 1 company
    portfolio raising

    One portfolio company has new financing on record in 6 months without this firm named on the round; the latest on 28 Apr 2026 ($25.5M sold on Form D).

    A portfolio company raising again is a follow-on decision for the firm and a co-investment opening for others.

    FactSEC Form D filingsFor Co-investors, LPs, lendersInvestments →
  4. 20 deals
    with Sequoia Capital

    Invests most often alongside Sequoia Capital (20 shared deals) and Sterling Road (11 shared deals).

    pair last observed on record 1 Oct 2026, not a deal date · The firms it syndicates with are the likeliest to see the same deals and to fill out its rounds.

    Measuredshared rounds and portfolio companies on recordCo-investors →

People to know

View all people
  • Diana Hu
    Managing Partner
    Why: Managing partner: runs the firm
    No route on file yet
  • Harj Taggar
    Managing Partner
    Why: Managing partner: runs the firm
    No route on file yet
  • Jared Friedman
    Managing Partner
    Why: Managing partner: runs the firm
    No route on file yet

Relationship network

345 connected entities

From financing rounds and every investor named in them, Form ADV and Form D filings, the firm's funds and team, and disclosed LP commitments in the venture capital graph. A round's amount is the size of the round, not money that moved between two investors.

Some relationships on this record are counted rather than named here. They open with the full profile.

Click any name or line for the rounds and sources behind it. Line weight is rounds together; dashed lines are inferred.

Reading the network
  • Sponsor
  • Company
  • Capital provider
  • Fund or vehicle
  • Person

Co-investors are read from the rounds: three or more shared rounds is a strong observed relationship, two a repeat co-investor, one a single round. Funds and people are structural. Nothing is scored that a reader cannot check.

Darker lines were active in the last 24 months or are current; lighter lines are older or undated.

How am I connected?

Name your firm, a company or a person, and DFX finds the published routes to Y Combinator: a shared portfolio company or board, a prior employer, a co-investor, a shared LP or service provider. Every step is a filed or published record with its source; none is a guess about who knows whom.

See how you connect to Y Combinator

Includes 3 days of DFX Intelligence. Then $199/month unless canceled.

Investing

669 companies on record, 31 new in 12 months
Investments on record
669 companies, 0 partner-attributed
CompanyRoundRolePartnerRound sizeThis investorDateSource
6thSenseportfolio listingunknownunknownunknownunknownOct 1, 2026Fact Firm website
7cupsportfolio listingunknownunknownunknownunknownOct 1, 2026Fact Firm website
80,000 Hoursportfolio listingunknownunknownunknownunknownOct 1, 2026Fact Firm website
Stated thesis versus observed behaviour
677 observed deals
Stated (the firm’s website)
Sectors
ai, fintech, hardware, media
Stages
series b
Geography
india, uk, worldwide
Check size
not stated; DFX does not estimate checks from round sizes
Observed (from deals on record)
Stage at participation
series a 47%seed 35%series b 18%
Stage at first entry
series a 47%seed 35%series b 18%
Industries, each company once
Hardware and deep tech, Software or Tech-enabled and IT services (15)Healthcare services (2)Business services (1)Life sciences (1)Manufacturing (1)Media and telecom (1)
lead rate 8%follow-on rate 3%new companies, 12 months 31

Team

80 current, 5 departed
Decision makers
who to call first, and why; then everyone else by function
  • Diana Hu · Managing Partner
    Why this person: Managing partner: runs the firm; Named with investment responsibility
  • Harj Taggar · Managing Partner
    Why this person: Managing partner: runs the firm; Named with investment responsibility
  • Jared Friedman · Managing Partner
    Why this person: Managing partner: runs the firm; Named with investment responsibility

Ranked by the role the firm or its filing states, a route on file and deals led. Every reason is read from the record, never inferred. Routes are published by the person or the firm (their bio, the team page or a filing) and are revealed on a plan; data bought from a provider is never shown, and a route printed at a firm the person has since left is held back.

Investment team
80 current, 5 departed
4 departed (kept with end dates)
  • Geoff David Ralston · President/Ceo · May 1, 2019 to Mar 31, 2023 Inference
  • SAM Altman · Ceo; President Y Combinator Management, Llc · Apr 1, 2014 to Mar 6, 2020 Inference
  • Kirsty Louise Nathoo · Cfo; Y Combinator Management, Llc · Apr 1, 2014 to Mar 27, 2026 Fact
Contacts
1 firm phone

1 firm phone on record, each with its source. Values open with the complete profile.

Funds and LPs

22 vehicles, 1 LPs disclosed
Funds and vehicles
22 reported, 2 no longer reported
VehicleTypeVintageLifecycleReported GAVOwnersForm D soldLatest Form D
Y Combinator ES26, LLCFund2026 form d first saleFundraisingunknownunknown$228MApr 27, 2026
Ycp26, L.P.Fund2026 form d first saleFundraisingunknownunknown$1.7BApr 27, 2026
Yca26, L.P.Fund2026 form d first saleFundraisingunknownunknown$728MApr 27, 2026
Limited partners
1 LPs, 2 disclosed commitments
Known LPs and allocators
10 relationships across the firm's funds, from public pensions and the allocator graph
AllocatorTypeFundAmountDateSource
Alaska Permanent Fund CorporationSOVEREIGN LINKED US ALLOCATORYcc20, L.P.$34.8M
committed
reported as of Dec 31, 2025Fact Pension disclosure
Alaska Permanent Fund CorporationSOVEREIGN LINKED US ALLOCATORY Combinator Es20, LLC$15.2M
committed
reported as of Dec 31, 2025Fact Pension disclosure
Bainum Family FoundationFOUNDATIONY Combinator ES24, LLC$148,187
fair value on the foundation's return
reported as of Jun 30, 2025Fact IRS Form 990 / 990-PF e-file returns

Relationships across DFX

434 co-investors · on 2 other DFX graphs
Co-investors
434 counted from shared deals, for the whole firm
Across DFX and the capital chainon 2 other DFX graphs · 13 capital paths Show
Across DFX
  • The same institution is held on Allocators, RIA and Wealth, matched by identifier. See which records
Across the graphs

Y Combinator is the same institution as 2 records in Allocators and RIA and Wealth.

Allocators1RIA and Wealth1

DFX found 2 relationships across 2 datasets

Which record it is in each graph, what it is called there, and how the two were matched.

Includes 3 days of DFX Intelligence. Then $199/month unless canceled.

Checking your plan…

Capital chain

Y Combinator sits on 13 traced paths of capital across the graphs.

Allocator to VC fund to manager to companyAllocator commitments to a manager

DFX traced 13 paths of capital through this record

Every record on each path, what it committed or lent, and as of when.

Includes 3 days of DFX Intelligence. Then $199/month unless canceled.

Derived from allocator disclosures, BDC schedules and SEC filings; confidence is the weakest hop.

Checking your plan…

Evidence and history

31 dated events, 78 observations from 3 sources
Timeline
31 dated events
  1. Sep 14, 2026
    Ycvc W14, LLC first reported on Form ADV by Y Combinator, GAV $22,480,780
    Fund first reported on Form ADVFundsFactYcvc W14, LLCForm ADV
  2. Jul 31, 2026
    Peak XV Partners and Y Combinator were named on 3 shared rounds in the 151 days to 2026-07-31, against 1 in the 151 days before
    Coinvestment risingderived signalInferencePeak XV Partnersno URL
  3. Mar 27, 2026
    Y Combinator Es24, LLC first reported on Form ADV by Y Combinator (Venture Capital Fund), GAV $115,651,252
    Fund first reported on Form ADVFundsInferenceY Combinator ES24, LLCForm ADV
  4. Mar 27, 2026
    Ycp24, L.P. first reported on Form ADV by Y Combinator (Venture Capital Fund), GAV $1,088,023,748
    Fund first reported on Form ADVFundsInferenceYcp24, L.P.Form ADV
  5. Mar 27, 2026
    YC Eco24, L.P. first reported on Form ADV by Y Combinator (Venture Capital Fund), GAV $79,560,033
    Fund first reported on Form ADVFundsInferenceYC Eco24, L.P.Form ADV
Identity and regulatory footprint
Address, phone, Form ADV filing and ownersForm ADV filed Mar 27, 2026 · 19 private fundsShow
Headquarters
Mountain View, CAadviserinfo.sec.gov
Office address
unknownadviserinfo.sec.gov
Business phone
unknownadviserinfo.sec.gov
Website
YCOMBINATOR.COM
SEC adviser type
Exempt reporting adviseradviserinfo.sec.gov
SEC exemption claimed
Venture capital fund adviseradviserinfo.sec.govItem 2.B(1): advises solely venture capital funds
Latest Form ADV
Mar 27, 2026
Private funds reported
19 (19 venture capital funds)adviserinfo.sec.gov
Private fund gross assets, adviser total
$22Badviserinfo.sec.govreported GAV of the funds, the adviser's own number; not fund size, not dry powder
Classification history
Every classification this record has carried1 on recordShow
  1. Sep 12, 2026
    Accelerator (confirmed, 95%)
    Name or self-description says accelerator
Evidence
78 observations from 3 sources
Every observation behind this profile, with its source, date and class
FactValueEffectiveClassSource
Why admittedVC exemption, VC funds reportedMar 27, 2026FactForm ADV
SEC exemption claimedVenture capital fund adviserMar 27, 2026FactForm ADV
SEC exemption claimedVenture capital fund adviserMar 29, 2024FactForm ADV
SEC adviser typeExempt reporting adviserMar 27, 2026FactForm ADV
SEC adviser typeExempt reporting adviserMar 27, 2026FactForm ADV
SEC adviser typeExempt reporting adviserMar 29, 2024FactForm ADV
First Form ADV filing2014-10-23Mar 27, 2026FactForm ADV
First Form ADV filing2014-10-23Mar 29, 2024FactForm ADV
Adv history loadedadv-hist-1+panel:2026-09-29Sep 30, 2026FactForm ADV
Adv history loadedadv-hist-1+panel:2026-09-25Sep 26, 2026FactForm ADV
Adv history loadedadv-hist-1+panel:2026-09-23Sep 24, 2026FactForm ADV
Adv history loadedadv-hist-1+panel:2026-09-21Sep 23, 2026FactForm ADV
Adv history loadedadv-hist-1+panel:2026-09-22Sep 23, 2026FactForm ADV
Adv history loadedadv-hist-1Sep 12, 2026FactForm ADV
Latest Form ADV filing2026-03-27Mar 27, 2026FactForm ADV
Latest Form ADV filing2026-03-27Mar 27, 2026FactForm ADV
Latest Form ADV filing2024-03-29Mar 29, 2024FactForm ADV
Adv pdf loadedadv-pdf-1Sep 14, 2026FactForm ADV
SEC statusERA - ActiveMar 27, 2026FactForm ADV
SEC status effective2014-10-23Mar 27, 2026FactForm ADV
Venture share of reported funds1Mar 27, 2026FactForm ADV
Venture share of reported funds1Mar 29, 2024FactForm ADV
Business phoneMar 27, 2026FactForm ADV
Business phoneMar 29, 2024FactForm ADV
Contact page urlOct 1, 2026Factno URL
Contact page urlSep 16, 2026Factno URL
DescriptionOct 1, 2026Factno URL
DescriptionSep 16, 2026Factno URL
DescriptionSep 15, 2026Factno URL
HeadquartersMountain View, CAMar 27, 2026FactForm ADV
HeadquartersMountain View, CAMar 29, 2024FactForm ADV
Office addressMar 27, 2026FactForm ADV
Office addressMar 29, 2024FactForm ADV
Legal formLimited Liability CompanyMar 27, 2026FactForm ADV
Legal formLimited Liability CompanyMar 29, 2024FactForm ADV
Portfolio pageOct 1, 2026Factno URL
Portfolio pageSep 16, 2026Factno URL
Portfolio pageSep 15, 2026Factno URL
Private funds reported19Mar 27, 2026FactForm ADV
Private funds reported19Mar 27, 2026FactForm ADV
Private funds reported14Mar 29, 2024FactForm ADV
Private fund gross assets (reported)$22BMar 27, 2026FactForm ADV
Private fund gross assets (reported)$22BMar 27, 2026FactForm ADV
Private fund gross assets (reported)$12BMar 29, 2024FactForm ADV
Schedule a diffsadiff-1Mar 27, 2026FactForm ADV
Stated geographyIndia, UK, worldwide
“geography words on the home page”
Oct 1, 2026Factno URL
Stated geographyIndia, UK, worldwide
“geography words on the home page”
Sep 16, 2026Factno URL
Stated geographyIndia, UK, worldwide
“geography words on the home page”
Sep 15, 2026Factno URL
Stated sectorsAI, fintech, hardware, media
“sector words on the home page”
Oct 1, 2026Factno URL
Stated sectorsAI, fintech, hardware, media
“sector words on the home page”
Sep 16, 2026Factno URL
Stated sectorsAI, fintech, hardware, media
“sector words on the home page”
Sep 15, 2026Factno URL
Stated stagesSeries b
“stage words on the home page”
Oct 1, 2026Factno URL
Stated stagesSeries b
“stage words on the home page”
Sep 16, 2026Factno URL
Stated stagesSeries b
“stage words on the home page”
Sep 15, 2026Factno URL
Team pageOct 1, 2026Factno URL
Team pageSep 16, 2026Factno URL
Team pageSep 15, 2026Factno URL
Venture funds reported19Mar 27, 2026FactForm ADV
Venture funds reported19Mar 27, 2026FactForm ADV
Venture funds reported14Mar 29, 2024FactForm ADV
WebsiteMar 27, 2026FactForm ADV
WebsiteMar 29, 2024FactForm ADV
Site titleOct 1, 2026Factno URL
Site titleSep 16, 2026Factno URL
Site titleSep 15, 2026Factno URL
How this is scored
Scores, classification basis and filing advisersAccelerator, confirmedShow
Importance
100
high
Active deployment
55
elevated
Emerging
0
low
Freshness
100
high
AcceleratorSEC exempt reporting adviser

Name or self-description says accelerator

The inputs behind each score
importance
gav: 1 · funds: 1 · people: 1 · investments: 1 · co investors: 1
active deployment
investments 12m: 1 · fund raising 18m: 0 · people joined 12m: 0 · vintage within 3y: 1 · latest investment at: 2026-09-29
emerging manager
fund count: 24 · reported gav: $22B · first adv filing: 2014-10-23 · years since first filing: 11.9

Fits, record history and connections

scored matches for this investor, every identity change, every edge

Fits

33 scored matches, best firstas of
  • score 64.6confidence 100%
    Why: sector fit; stage fit; geography fit; activity
    Watch: adjacent portfolio
  • score 62.6confidence 100%
    Why: sector fit; stage fit; geography fit; activity
    Watch: adjacent portfolio
  • score 55.9confidence 100%
    Why: sector fit; geography fit; activity; analogous
    Watch: adjacent portfolio

+30 more scored matches

Includes 3 days of DFX Intelligence. Then $199/month unless canceled.

Scored by DFX match engines from the record's observed portfolio, stage, geography and recent activity. A fit is a reason to look, not a mandate; the blockers say what the model could not confirm. Names and the evidence sentences show with the names on this page.

Record history

1 dated event on the change ledger, latest event first
  • Adviser's first ADV filing
    2014-10-23source on record

The ledger records every merge, rename and reclassification this record went through and the dated filings observed on it, so the identity on this page can be traced to the records it was built from. The ledger's own sentences name other records, so they show with the names.