Firms, funds, partners, companies and rounds from sworn filings, firm sites and announcements, kept as a graph with a date and a source on every edge. Facts, inferences and estimates are labelled as such. A fund target is never a close, GAV is never dry powder, and a round size is never an investor’s check.

Firms / The Engine Funds

The Engine Funds

Institutional venture firmCambridge, MAengineventures.comSEC venture capital fund adviserfundraising evidenceone firm, 2 filing advisers

This firm files as 2 advisers on engineventures.com: The Engine Accelerator, Inc.. Each keeps its own CRD, funds and filings; the grouping is the website each swore to on Form ADV and is recomputed every pass.

We invest in Tough Tech founders.

venture manager, reported GAV $1,293M across 12 vehicles

Importance
63
high
Active deployment
90
high
Emerging
0
low
Completeness
75
high
Freshness
100
high
Research priority
30
moderate
Identity and regulatory footprint
Headquarters
Cambridge, MAadviserinfo.sec.gov
Office address
750 MAIN STREET, Cambridge, MA, 02139adviserinfo.sec.gov
Business phone
617-297-7485adviserinfo.sec.gov
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 30, 2026
Private funds reported
10 (10 venture capital funds)adviserinfo.sec.gov
Private fund gross assets
$1.6Badviserinfo.sec.govreported GAV of the funds, the adviser's own number; not fund size, not dry powder
business phone
617-546-3920adviserinfo.sec.govpublished by the subject
business phone
617-297-7485adviserinfo.sec.govpublished by the subject
Stated thesis versus observed behaviour
54 observed deals
Stated (the firm’s website)
Sectors
ai, climate, energy, deep tech, hardware, space, logistics, industrial
Stages
not stated or not yet read
Geography
global
Check size
not stated; DFX does not estimate checks from round sizes
Self-described
venture capital
Observed (from deals on record)
Stage at participation: no observed deals yet
Stage at first entry: no observed deals yet
Sectors
unknown 70%Biotechnology 9%Other Energy 8%Other Technology 8%Other 6%
lead rate n/afollow-on rate n/anew logos, 12 months 52
Funds and vehicles
12 reported
VehicleTypeVintageLifecycleReported GAVOwnersForm D soldLatest Form D
The Engine Fund I Spv-D, LLCSPV or co-invest vehicle2023 form d first saleActive deployment$9.1M
Mar 28, 2024
2$14.0M
of $14.0M
Jan 17, 2024
Engine Fund III, L.P.Fund2023 form d first saleActive deploymentunknownunknown$398M
of $398M
Jun 18, 2024
The Engine Fund I Spv-B, LLCSPV or co-invest vehicle2021 form d first saleMature$9.9M
Mar 28, 2024
19$9.6M
of $9.6M
Oct 12, 2021
The Engine Fund I Spv-A, LLCSPV or co-invest vehicle2020 form d first saleMature$28.6M
Mar 28, 2024
11$9.9M
of $9.9M
Nov 25, 2020
The Engine Accelerator Fund I, L.P.FundunknownUnknown$502M
Mar 28, 2024
60$0Apr 5, 2017
The Engine Fund III, L.P.FundunknownUnknown$302M
Mar 28, 2024
56$0May 4, 2023
The Engine Fund II, L.P.FundunknownUnknown$298M
Mar 28, 2024
57$0
of $250M
Mar 30, 2020
The Engine Follow-On Fund I, L.P.FundunknownUnknown$133M
Mar 28, 2024
52$0
of $150M
Nov 9, 2021
The Engine Fund I Spv-C, LLCSPV or co-invest vehicleunknownUnknown$10.0M
Mar 28, 2024
1unknownunknown
Engine Ventures Scale Up Fund I, L.P.FundunknownFundraisingunknownunknown$0
of $500M
May 27, 2026
Engine Fund I SPV-F, LLCSPV or co-invest vehicleunknownUnknownunknownunknown$0
of $9.5M
Feb 21, 2025
Engine Fund I SPV-E, LLCSPV or co-invest vehicleunknownUnknownunknownunknown$0
of $6.5M
Oct 1, 2024
GAV is the gross asset value the adviser reported on Form ADV for the vehicle, never the fund’s committed size and never dry powder. Form D sold is the amount sold as of the latest filing, never a final close.
Investment team
29 current, 1 departed
Israel Ruiz
President & General Partner · since Jan 1, 2024
General partner
Bettina Metais
Vice President of Finance & Operations
Platform and operations
1 departed (kept with end dates)
Investments on record
54 edges, 53 companies, 5 partner-attributed
CompanyRoundRolePartnerRound sizeThis investorDateSource
Addis Energy, Inc. · exitedportfolio listingunknownunknownunknownunknownSep 16, 2026Fact Venture organization websites (about, team, portfolio, thesis, news pages)
Amide · exitedportfolio listingunknownunknownunknownunknownSep 16, 2026Fact Venture organization websites (about, team, portfolio, thesis, news pages)
Anthology · exitedportfolio listingunknownunknownunknownunknownSep 16, 2026Fact Venture organization websites (about, team, portfolio, thesis, news pages)
Atlantic Quantum · exitedportfolio listingunknownunknownunknownunknownSep 16, 2026Fact Venture organization websites (about, team, portfolio, thesis, news pages)
Atmoszero · exitedportfolio listingunknownunknownunknownunknownSep 16, 2026Fact Venture organization websites (about, team, portfolio, thesis, news pages)
Axiomatic Ai · exitedportfolio listingunknownunknownunknownunknownSep 16, 2026Fact Venture organization websites (about, team, portfolio, thesis, news pages)
Axoft, Inc. · exitedportfolio listingunknownunknownunknownunknownSep 16, 2026Fact Venture organization websites (about, team, portfolio, thesis, news pages)
Biobot Analytics, Inc. · exitedportfolio listingunknownunknownunknownunknownSep 16, 2026Fact Venture organization websites (about, team, portfolio, thesis, news pages)
Blue Energy · exitedportfolio listingunknownunknownunknownunknownSep 16, 2026Fact Venture organization websites (about, team, portfolio, thesis, news pages)
Boston Metal · exitedportfolio listingunknownunknownunknownunknownSep 16, 2026Fact Venture organization websites (about, team, portfolio, thesis, news pages)
Celestial AI Inc. · exitedportfolio listingunknownunknownunknownunknownSep 16, 2026Fact Venture organization websites (about, team, portfolio, thesis, news pages)
Cellino · exitedportfolio listingunknownunknownunknownunknownSep 16, 2026Fact Venture organization websites (about, team, portfolio, thesis, news pages)
Commonwealth Fusion Systems · exitedportfolio listingunknownunknownunknownunknownSep 16, 2026Fact Venture organization websites (about, team, portfolio, thesis, news pages)
Copernic · exitedportfolio listingunknownunknownunknownunknownSep 16, 2026Fact Venture organization websites (about, team, portfolio, thesis, news pages)
Dbos · exitedportfolio listingunknownunknownunknownunknownSep 16, 2026Fact Venture organization websites (about, team, portfolio, thesis, news pages)
DG Matrix Inc. · exitedportfolio listingunknownunknownunknownunknownSep 16, 2026Fact Venture organization websites (about, team, portfolio, thesis, news pages)
Droplet Biosciences · exitedportfolio listingunknownunknownunknownunknownSep 16, 2026Fact Venture organization websites (about, team, portfolio, thesis, news pages)
Emvolon · exitedportfolio listingunknownunknownunknownunknownSep 16, 2026Fact Venture organization websites (about, team, portfolio, thesis, news pages)
Evoloh · exitedportfolio listingunknownunknownunknownunknownSep 16, 2026Fact Venture organization websites (about, team, portfolio, thesis, news pages)
Finwave · exitedportfolio listingunknownunknownunknownunknownSep 16, 2026Fact Venture organization websites (about, team, portfolio, thesis, news pages)
FORAY bioscience, Inc. · exitedportfolio listingunknownunknownunknownunknownSep 16, 2026Fact Venture organization websites (about, team, portfolio, thesis, news pages)
Form Energy · exitedportfolio listingunknownunknownunknownunknownSep 16, 2026Fact Venture organization websites (about, team, portfolio, thesis, news pages)
Foundation Alloy · exitedportfolio listingunknownunknownunknownunknownSep 16, 2026Fact Venture organization websites (about, team, portfolio, thesis, news pages)
Genomines · exitedportfolio listingunknownunknownunknownunknownSep 16, 2026Fact Venture organization websites (about, team, portfolio, thesis, news pages)
Hyfé Foods · exitedportfolio listingunknownunknownunknownunknownSep 16, 2026Fact Venture organization websites (about, team, portfolio, thesis, news pages)
HyperLight Corp · exitedportfolio listingunknownunknownunknownunknownSep 16, 2026Fact Venture organization websites (about, team, portfolio, thesis, news pages)
Isee · exitedportfolio listingunknownunknownunknownunknownSep 16, 2026Fact Venture organization websites (about, team, portfolio, thesis, news pages)
Kano Therapeutics Inc. · exitedportfolio listingunknownunknownunknownunknownSep 16, 2026Fact Venture organization websites (about, team, portfolio, thesis, news pages)
Kytopen Corp. · exitedportfolio listingunknownunknownunknownunknownSep 16, 2026Fact Venture organization websites (about, team, portfolio, thesis, news pages)
Lilac Solutions, Inc. · exitedportfolio listingunknownunknownunknownunknownSep 16, 2026Fact Venture organization websites (about, team, portfolio, thesis, news pages)
Matrisome Bio · exitedportfolio listingunknownunknownunknownunknownSep 16, 2026Fact Venture organization websites (about, team, portfolio, thesis, news pages)
Osmoses · exitedportfolio listingunknownunknownunknownunknownSep 16, 2026Fact Venture organization websites (about, team, portfolio, thesis, news pages)
Oso Semiconductor · exitedportfolio listingunknownunknownunknownunknownSep 16, 2026Fact Venture organization websites (about, team, portfolio, thesis, news pages)
Overview Energy, Inc. · exitedportfolio listingunknownunknownunknownunknownSep 16, 2026Fact Venture organization websites (about, team, portfolio, thesis, news pages)
Pascal 2 · exitedportfolio listingunknownunknownunknownunknownSep 16, 2026Fact Venture organization websites (about, team, portfolio, thesis, news pages)
Predicta · exitedportfolio listingunknownunknownunknownunknownSep 16, 2026Fact Venture organization websites (about, team, portfolio, thesis, news pages)
Quaise · exitedportfolio listingunknownunknownunknownunknownSep 16, 2026Fact Venture organization websites (about, team, portfolio, thesis, news pages)
Resonant Link · exitedportfolio listingunknownunknownunknownunknownSep 16, 2026Fact Venture organization websites (about, team, portfolio, thesis, news pages)
Reynko · exitedportfolio listingunknownunknownunknownunknownSep 16, 2026Fact Venture organization websites (about, team, portfolio, thesis, news pages)
Rise Robotics · exitedportfolio listingunknownunknownunknownunknownSep 16, 2026Fact Venture organization websites (about, team, portfolio, thesis, news pages)
Sublime Systems · exitedportfolio listingunknownunknownunknownunknownSep 16, 2026Fact Venture organization websites (about, team, portfolio, thesis, news pages)
Superlight · exitedportfolio listingunknownunknownunknownunknownSep 16, 2026Fact Venture organization websites (about, team, portfolio, thesis, news pages)
Sync Computing · exitedportfolio listingunknownunknownunknownunknownSep 16, 2026Fact Venture organization websites (about, team, portfolio, thesis, news pages)
Syzygy Plasmonics · exitedportfolio listingunknownunknownunknownunknownSep 16, 2026Fact Venture organization websites (about, team, portfolio, thesis, news pages)
Terada · exitedportfolio listingunknownunknownunknownunknownSep 16, 2026Fact Venture organization websites (about, team, portfolio, thesis, news pages)
Terrestrial Bio, Inc. · exitedportfolio listingunknownunknownunknownunknownSep 16, 2026Fact Venture organization websites (about, team, portfolio, thesis, news pages)
Tough Tech Job Board · exitedportfolio listingunknownunknownunknownunknownSep 16, 2026Fact Venture organization websites (about, team, portfolio, thesis, news pages)
via-separations · exitedportfolio listingunknownunknownunknownunknownSep 16, 2026Fact Venture organization websites (about, team, portfolio, thesis, news pages)
Woho · exitedportfolio listingunknownunknownunknownunknownSep 16, 2026Fact Venture organization websites (about, team, portfolio, thesis, news pages)
Blue Energy Global Inc.board seatunknown · boardMichael Kearney (strongly supported)unknownunknownMay 1, 2026Inference SEC EDGAR Form D data sets (quarterly)
Sora Fuel Corpboard seatunknown · boardMichael Kearney (strongly supported)unknownunknownMar 31, 2026Inference SEC EDGAR Form D data sets (quarterly)
DG Matrix Inc.board seatunknown · boardMichael Kearney (strongly supported)unknownunknownMar 4, 2026Inference SEC EDGAR Form D data sets (quarterly)
PasCal Technologies, Inc.board seatunknown · boardMichael Kearney (strongly supported)unknownunknownMay 8, 2024Inference SEC EDGAR Form D data sets (quarterly)
Mantel Capture, Inc.board seatunknown · boardMichael Kearney (strongly supported)unknownunknownJan 4, 2024Inference SEC EDGAR Form D data sets (quarterly)
“This investor” is the amount disclosed for this investor alone; it is unknown unless a source said it. The round size is the whole round.
Co-investors
17 relationships from shared deals, counted for the whole firm
Limited partners
0 disclosed
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.
Timeline
5 dated events
  1. Mar 30, 2026
    Milo Camp Peavey Werner (General Partner) no longer on Schedule A of The Engine Funds
  2. Mar 28, 2024
    The Engine Fund I Spv-D, LLC first reported on Form ADV by The Engine Funds (Venture Capital Fund), GAV $9,102,103
  3. Nov 1, 2023
    Michael Kearney joined Schedule A of The Engine Funds as General Partner
  4. Jun 21, 2023
    FWH Management Company, LLC first filed Form ADV (ERA, venture capital fund adviser exemption)
  5. Jun 21, 2023
    The Engine Fund III, L.P. first reported on Form ADV by FWH Management Company, LLC (Venture Capital Fund)
Classification history
  1. Sep 15, 2026
    Institutional venture firm (confirmed, 95%, cls-1)
    venture manager, reported GAV $1,293M across 12 vehicles
  2. Sep 14, 2026
    Institutional venture firm (confirmed, 95%, cls-1)
    venture manager, reported GAV $1,293M across 9 vehicles
  3. Sep 12, 2026
    Institutional venture firm (confirmed, 95%, cls-1)
    venture manager, reported GAV $1,293M across 8 vehicles
Evidence
49 observations from 4 sources
Every observation behind this profile, with its source, date and class
FactValueEffectiveClassSource
Why admittedvc_exemption,vc_funds_reportedMar 30, 2026FactSEC Form ADV monthly roster (registered + exempt reporting advisers)
SEC exemption claimedventure_capital_fund_adviserMar 30, 2026FactSEC Form ADV monthly roster (registered + exempt reporting advisers)
SEC exemption claimedventure_capital_fund_adviserMar 28, 2024FactSEC Form ADV filing data 2011 to 2024 (every filing, Schedule D 7.B.(1) private funds, Schedules A/B)
SEC adviser typeexempt_reporting_adviserMar 30, 2026FactSEC Form ADV monthly roster (registered + exempt reporting advisers)
SEC adviser typeexempt_reporting_adviserMar 28, 2024FactSEC Form ADV filing data 2011 to 2024 (every filing, Schedule D 7.B.(1) private funds, Schedules A/B)
First Form ADV filing2023-06-21Mar 28, 2024FactSEC Form ADV filing data 2011 to 2024 (every filing, Schedule D 7.B.(1) private funds, Schedules A/B)
Adv history loadedadv-hist-1Sep 12, 2026FactSEC Form ADV filing data 2011 to 2024 (every filing, Schedule D 7.B.(1) private funds, Schedules A/B)
Latest Form ADV filing2026-03-30Mar 30, 2026FactSEC Form ADV monthly roster (registered + exempt reporting advisers)
Latest Form ADV filing2024-03-28Mar 28, 2024FactSEC Form ADV filing data 2011 to 2024 (every filing, Schedule D 7.B.(1) private funds, Schedules A/B)
SEC statusERA - ActiveMar 30, 2026FactSEC Form ADV monthly roster (registered + exempt reporting advisers)
SEC status effective2023-06-21Mar 30, 2026FactSEC Form ADV monthly roster (registered + exempt reporting advisers)
Venture share of reported funds1Mar 28, 2024FactSEC Form ADV filing data 2011 to 2024 (every filing, Schedule D 7.B.(1) private funds, Schedules A/B)
Business phone617-297-7485Mar 30, 2026FactSEC Form ADV monthly roster (registered + exempt reporting advisers)
Business phone617-546-3920Mar 28, 2024FactSEC Form ADV filing data 2011 to 2024 (every filing, Schedule D 7.B.(1) private funds, Schedules A/B)
Contact page urlhttps://engineventures.com/connect-3
contact page linked from the home page
Sep 16, 2026FactVenture organization websites (about, team, portfolio, thesis, news pages)
DescriptionWe invest in Tough Tech founders.
meta description
Sep 16, 2026FactVenture organization websites (about, team, portfolio, thesis, news pages)
DescriptionWe invest in Tough Tech founders.
meta description
Sep 15, 2026FactVenture organization websites (about, team, portfolio, thesis, news pages)
HeadquartersCambridge, MAMar 30, 2026FactSEC Form ADV monthly roster (registered + exempt reporting advisers)
HeadquartersCambridge, MAMar 28, 2024FactSEC Form ADV filing data 2011 to 2024 (every filing, Schedule D 7.B.(1) private funds, Schedules A/B)
Office address750 MAIN STREET, Cambridge, MA, 02139Mar 30, 2026FactSEC Form ADV monthly roster (registered + exempt reporting advisers)
Office address750 MAIN STREET, Cambridge, MA, 02139Mar 28, 2024FactSEC Form ADV filing data 2011 to 2024 (every filing, Schedule D 7.B.(1) private funds, Schedules A/B)
Self-described typeventure_capital
Engine Ventures is a venture firm that invests in the next generation of Tough Tech founders by providing capital, operational expertise, and a powerful academic, commercial, and governmental network
Sep 16, 2026FactVenture organization websites (about, team, portfolio, thesis, news pages)
Self-described typeventure_capital
Engine Ventures is a venture firm that invests in the next generation of Tough Tech founders by providing capital, operational expertise, and a powerful academic, commercial, and governmental network
Sep 15, 2026FactVenture organization websites (about, team, portfolio, thesis, news pages)
Legal formLimited Liability CompanyMar 30, 2026FactSEC Form ADV monthly roster (registered + exempt reporting advisers)
Legal formLimited Liability CompanyMar 28, 2024FactSEC Form ADV filing data 2011 to 2024 (every filing, Schedule D 7.B.(1) private funds, Schedules A/B)
Portfolio pagehttps://engineventures.com/companies
49 entries read
Sep 16, 2026FactVenture organization websites (about, team, portfolio, thesis, news pages)
Portfolio pagehttps://engineventures.com/companies
49 entries read
Sep 15, 2026FactVenture organization websites (about, team, portfolio, thesis, news pages)
Private funds reported10Mar 30, 2026FactSEC Form ADV monthly roster (registered + exempt reporting advisers)
Private funds reported8Mar 28, 2024FactSEC Form ADV filing data 2011 to 2024 (every filing, Schedule D 7.B.(1) private funds, Schedules A/B)
Private fund gross assets (reported)$1.6BMar 30, 2026FactSEC Form ADV monthly roster (registered + exempt reporting advisers)
Private fund gross assets (reported)$1.3BMar 28, 2024FactSEC Form ADV filing data 2011 to 2024 (every filing, Schedule D 7.B.(1) private funds, Schedules A/B)
Schedule a diffsadiff-1Mar 30, 2026FactIAPD Form ADV Part 1 PDF per firm (current filing, Schedule D 7.B.(1) and Schedule A)
Stated geographyglobal
geography words on the home page
Sep 16, 2026FactVenture organization websites (about, team, portfolio, thesis, news pages)
Stated geographyglobal
geography words on the home page
Sep 15, 2026FactVenture organization websites (about, team, portfolio, thesis, news pages)
Stated sectorsai,climate,energy,deep_tech,hardware,space,logistics,industrial
sector words on the home page
Sep 16, 2026FactVenture organization websites (about, team, portfolio, thesis, news pages)
Stated sectorsai,climate,energy,deep_tech,hardware,space,logistics,industrial
sector words on the home page
Sep 15, 2026FactVenture organization websites (about, team, portfolio, thesis, news pages)
Team pagehttps://engineventures.com/about/team
20 name/title pairs read
Sep 16, 2026FactVenture organization websites (about, team, portfolio, thesis, news pages)
Team pagehttps://engineventures.com/about/team
20 name/title pairs read
Sep 15, 2026FactVenture organization websites (about, team, portfolio, thesis, news pages)
Venture funds reported10Mar 30, 2026FactSEC Form ADV monthly roster (registered + exempt reporting advisers)
Venture funds reported8Mar 28, 2024FactSEC Form ADV filing data 2011 to 2024 (every filing, Schedule D 7.B.(1) private funds, Schedules A/B)
Websitehttp://www.engineventures.com/
re-picked from Schedule D 1.I by name
Sep 12, 2026FactSEC Form ADV filing data 2011 to 2024 (every filing, Schedule D 7.B.(1) private funds, Schedules A/B)
Websitehttp://www.engineventures.com/Mar 30, 2026FactSEC Form ADV monthly roster (registered + exempt reporting advisers)
Websitehttp://www.engineventures.com/Mar 28, 2024FactSEC Form ADV filing data 2011 to 2024 (every filing, Schedule D 7.B.(1) private funds, Schedules A/B)
WebsiteHTTP://WWW.ENGINE.XYZMar 28, 2024FactSEC Form ADV filing data 2011 to 2024 (every filing, Schedule D 7.B.(1) private funds, Schedules A/B)
Site titleHome | Engine Ventures
title tag
Sep 16, 2026FactVenture organization websites (about, team, portfolio, thesis, news pages)
Site titleHome | Engine Ventures
title tag
Sep 15, 2026FactVenture organization websites (about, team, portfolio, thesis, news pages)