OSS Capital, LLC

Institutional venture firmSEC venture capital fund adviserRaising· San Francisco, Californiaoss.capital

About us OSS Capital is the first and only early-stage VC exclusively dedicated to backing leading COSS (commercial open source) startup founders on a global basis since 2018. Our Key goals Empowering the Next Generation of COSS Founders Guidance from 50+ COSS founders—behind companies like GitLab, Elastic, and Red Hat—driving $300B+ in value, $100B+ in outcomes,…

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

Reported fund assets
$462M
sum of its funds' Form ADV filings, last 30 months
New companies, 12 mo
None
Investment team
4
Latest vintage
2025
Contact decision makers
More
Ask DFX about thisView relationshipsFind contactsInvestments (21)Team (7)Funds
As of · the latest observation of this organization; filed figures are as of its latest Form ADV

3 additional team members, 3 additional co-investors and affiliates, 24 additional investments, funds and LPs, 3 events, 3 verified contacts (2 firm phone, 1 general firm email)

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. 1 vehicle
    on Form D, 18 months

    1 vehicle filed a Form D in the last 18 months, the latest XEIA Venture Partners Fund II on 21 Jul 2026. $1.28M 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. 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 29 Apr 2026.

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

    FactPress release wires (PR Newswire, GlobeNewswire)For Co-investors, LPs, lendersInvestments →

People to know

View all people
  • Joseph Abraham Jacks
    Managing Partner
    Why: Managing partner: runs the firm
    No route on file yet
  • Heather Meeker
    Founding Portfolio Partner
    Why: Partner: part of the investment decision
    No route on file yet
  • Justin Hoffman
    Portfolio Partner: GTM/Sales
    Why: Partner: part of the investment decision
    No route on file yet

Relationship network

42 connected entities1 observed round

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
  • 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 OSS Capital, LLC: 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 OSS Capital, LLC

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

Investing

21 companies on record, 0 new in 12 months
Investments on record
21 companies, 1 partner-attributed
CompanyRoundRolePartnerRound sizeThis investorDateSource
AppFlowyportfolio listingunknownunknownunknownunknownSep 30, 2026Fact Firm website
Bittensorportfolio listingunknownunknownunknownunknownSep 30, 2026Fact Firm website
CrabNebulaportfolio listingunknownunknownunknownunknownSep 30, 2026Fact Firm website
Stated thesis versus observed behaviour
22 observed deals
Stated (the firm’s website)
Sectors
ai, devtools
Stages
seed, early
Geography
global
Check size
not stated; DFX does not estimate checks from round sizes
Observed (from deals on record)
Stage at participation: no observed deals yet
Stage at first entry: no observed deals yet
Sectors
unknown 100%
lead rate no observed dealsfollow-on rate 0%new companies, 12 months 0

Team

7 current, 0 departed
Decision makers
who to call first, and why; then everyone else by function
  • Joseph Abraham Jacks · Managing Partner
    Why this person: Managing partner: runs the firm; Named with investment responsibility
  • Heather Meeker · Founding Portfolio Partner
    Why this person: Partner: part of the investment decision; Named with investment responsibility
  • Justin Hoffman · Portfolio Partner: GTM/Sales
    Why this person: Partner: part of the investment decision; 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
7 current, 0 departed
Contacts
1 general firm email, 2 firm phone

1 general firm email, 2 firm phone on record, each with its source. Values open with the complete profile.

Funds and LPs

9 vehicles, 0 LPs disclosed
Funds and vehicles
9 reported
VehicleTypeVintageLifecycleReported GAVOwnersForm D soldLatest Form D
XEIA Venture Partners Fund II, LPFund2025 form d first saleFundraisingunknownunknown$1.3MJul 21, 2026
OSS Capital III, L.P.Fund2024 adv first reportedEarly deployment$50.2M
Mar 17, 2026
19$0
of $75.0M
Nov 13, 2023
Plane OSS LLCFund2024 form d first saleNewly closedunknownunknown$2.7M
of $58.0M
Dec 31, 2024
Limited partners
0 LPs, 0 disclosed commitments
No LP commitment on record. An LP edge needs a public disclosure with a quote: a pension report (see Limited partners for the plans read), a fund announcement naming the LP, or a Form ADV owner. The fund page carries the LP’s reported performance.
Known LPs and allocators
0 relationships across the firm's funds, from public pensions and the allocator graph
No allocator names this firm or its funds in a public disclosure DFX holds.

Relationships across DFX

6 co-investors · on 1 other DFX graph
Co-investors
6 counted from shared deals, for the whole firm
Across DFX and the capital chainon 1 other DFX graph Show
Across DFX
  • The same institution is held on RIA and Wealth, matched by identifier. See which records
Across the graphs

OSS Capital, LLC is the same institution as 1 record in RIA and Wealth.

RIA and Wealth1

The joined record opens with the product, beside every other relationship on this page.

Checking your plan…

Evidence and history

8 dated events, 71 observations from 3 sources
Timeline
8 dated events
  1. Mar 17, 2026
    Plane Oss, LLC first reported on Form ADV by OSS Capital, LLC (Venture Capital Fund), GAV $2,753,053
    Fund first reported on Form ADVFundsInferencePlane Oss, LLCForm ADV
  2. Mar 17, 2026
    OSS Capital IV, L.P. first reported on Form ADV by OSS Capital, LLC (Venture Capital Fund), GAV $11,635,282
    Fund first reported on Form ADVFundsInferenceOSS Capital IV, L.P.Form ADV
  3. Aug 14, 2025
    OSS Capital, LLC filed the first Form D for OSS Capital IV, L.P. (fund 4), its next fund after OSS Capital III, L.P. (vintage 2024); offering $52.0M
    Fund next filedderived signalInferenceOSS Capital IV, L.P.no URL
  4. Mar 21, 2024
    Liquid Oss LLC first reported on Form ADV by OSS Capital, LLC (Venture Capital Fund), GAV $6,952,664
    Fund first reported on Form ADVFundsFactLiquid Oss LLCForm ADV
  5. Mar 21, 2024
    OSS Capital III, L.P. first reported on Form ADV by OSS Capital, LLC (Venture Capital Fund), GAV $7,391,433
    Fund first reported on Form ADVFundsFactOSS Capital III, L.P.Form ADV
Identity and regulatory footprint
Address, phone, Form ADV filing and ownersForm ADV filed Mar 17, 2026 · 6 private fundsShow
Headquarters
San Francisco, CAadviserinfo.sec.gov
Office address
unknownadviserinfo.sec.gov
Business phone
unknownadviserinfo.sec.gov
Website
oss.capital
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 17, 2026
Private funds reported
6 (6 venture capital funds)adviserinfo.sec.gov
Private fund gross assets, adviser total
$462Madviserinfo.sec.govreported GAV of the funds, the adviser's own number; not fund size, not dry powder
Classification history
Every classification this record has carried3 on recordShow
  1. Sep 23, 2026
    Institutional venture firm (confirmed, 95%)
    Venture manager, reported GAV $462M across 9 vehicles
  2. Sep 12, 2026
    Institutional venture firm (confirmed, 95%)
    Venture manager, reported GAV $213M across 7 vehicles
  3. Sep 12, 2026
    Institutional venture firm (confirmed, 95%)
    Venture manager, reported GAV $213M across 5 vehicles
Evidence
71 observations from 3 sources
Every observation behind this profile, with its source, date and class
FactValueEffectiveClassSource
Why admittedVC exemption, VC funds reportedMar 17, 2026FactForm ADV
SEC exemption claimedVenture capital fund adviserMar 17, 2026FactForm ADV
SEC exemption claimedVenture capital fund adviserMay 8, 2024FactForm ADV
SEC adviser typeExempt reporting adviserMar 17, 2026FactForm ADV
SEC adviser typeExempt reporting adviserMar 17, 2026FactForm ADV
SEC adviser typeExempt reporting adviserMay 8, 2024FactForm ADV
First Form ADV filing2022-08-29Mar 17, 2026FactForm ADV
First Form ADV filing2022-08-29May 8, 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 filing2026-03-17Mar 17, 2026FactForm ADV
Latest Form ADV filing2026-03-17Mar 17, 2026FactForm ADV
Latest Form ADV filing2024-05-08May 8, 2024FactForm ADV
SEC statusERA - ActiveMar 17, 2026FactForm ADV
SEC status effective2022-08-29Mar 17, 2026FactForm ADV
Venture share of reported funds1Mar 17, 2026FactForm ADV
Venture share of reported funds1May 8, 2024FactForm ADV
Business phoneMar 17, 2026FactForm ADV
Business phoneMay 8, 2024FactForm ADV
Contact page urlSep 30, 2026Factno URL
Contact page urlSep 16, 2026Factno URL
DescriptionSep 30, 2026Factno URL
DescriptionSep 16, 2026Factno URL
DescriptionSep 12, 2026Factno URL
HeadquartersSan Francisco, CAMar 17, 2026FactForm ADV
HeadquartersSan Francisco, CAMay 8, 2024FactForm ADV
Office addressMar 17, 2026FactForm ADV
Office addressMay 8, 2024FactForm ADV
Legal formLimited Liability CompanyMar 17, 2026FactForm ADV
Legal formLimited Liability CompanyMay 8, 2024FactForm ADV
Portfolio pageSep 30, 2026Factno URL
Portfolio pageSep 16, 2026Factno URL
Portfolio pageSep 12, 2026Factno URL
Private funds reported6Mar 17, 2026FactForm ADV
Private funds reported6Mar 17, 2026FactForm ADV
Private funds reported4May 8, 2024FactForm ADV
Private fund gross assets (reported)$462MMar 17, 2026FactForm ADV
Private fund gross assets (reported)$462MMar 17, 2026FactForm ADV
Private fund gross assets (reported)$213MMay 8, 2024FactForm ADV
Schedule a diffsadiff-1Sep 24, 2026FactForm ADV
Stated geographyglobal
“geography words on the home page”
Sep 30, 2026Factno URL
Stated geographyglobal
“geography words on the home page”
Sep 16, 2026Factno URL
Stated geographyglobal
“geography words on the home page”
Sep 12, 2026Factno URL
Stated sectorsAI, devtools
“sector words on the home page”
Sep 30, 2026Factno URL
Stated sectorsAI, devtools
“sector words on the home page”
Sep 16, 2026Factno URL
Stated sectorsAI, devtools
“sector words on the home page”
Sep 12, 2026Factno URL
Stated stagesSeed, early
“stage words on the home page”
Sep 30, 2026Factno URL
Stated stagesSeed, early
“stage words on the home page”
Sep 16, 2026Factno URL
Stated stagesSeed, early
“stage words on the home page”
Sep 12, 2026Factno URL
Team pageSep 30, 2026Factno URL
Team pageSep 16, 2026Factno URL
Team pageSep 12, 2026Factno URL
Venture funds reported6Mar 17, 2026FactForm ADV
Venture funds reported6Mar 17, 2026FactForm ADV
Venture funds reported4May 8, 2024FactForm ADV
WebsiteMar 17, 2026FactForm ADV
WebsiteMay 8, 2024FactForm ADV
Site titleSep 30, 2026Factno URL
Site titleSep 16, 2026Factno URL
Site titleSep 12, 2026Factno URL
How this is scored
Scores, classification basis and filing advisersInstitutional venture firm, confirmedShow
Importance
46
elevated
Active deployment
60
high
Emerging
0
low
Freshness
100
high
Institutional venture firmSEC exempt reporting adviser

Venture manager, reported GAV $462M across 9 vehicles

The inputs behind each score
importance
gav: $1 · funds: 0.75 · people: 0.16 · investments: 0.5 · co investors: 0.31
active deployment
investments 12m: 0 · fund raising 18m: 1 · people joined 12m: 0 · vintage within 3y: 1 · latest investment at: not scored
emerging manager
fund count: 9 · reported gav: $462M · first adv filing: 2022-08-29 · years since first filing: 4.1

Fits, record history and connections

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

Fits

1 scored match, best firstas of
  • score 34confidence 90%
    Why: sector fit; geography fit; activity

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.