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Engine Ventures

750 Main Street, Cambridge, MA, 02139, United States

Overview

Venture capital firm investing in Tough Tech founders.

Founded

2017

Deals · 12mo

13

Links

WebsiteLinkedIn

Stage focus

Seed
Series A

Geographic focus

United States

Sector focus

—

Investment portfolio

42rounds
NAMEDATESIZE
VEIR
Oct 2026Participated
$110 MSeries C
CorePower Magnetics
Sep 2026Led
$11 MOther Equity
Form Energy
Aug 2026Participated
$750 MSeries G
Superlight
Jun 2026Led
$21 MSeries A
Foundation Alloy
Jun 2026Participated
$22 MSeries A
Blue Energy
Apr 2026Participated
$380 MOther Equity
Terrestrial Bio
Mar 2026Participated
$50 MSeries C
Axiomatic AI
Mar 2026Led
$18 MSeed
DG Matrix
Feb 2026Led
$60 MSeries A
T-robotics
Feb 2026Led
$32 MSeries A
Trener Robotics
Feb 2026Led
$32 MSeries A
Overview Energy
Dec 2025Participated
$20 MOther Equity
VEIR
Oct 2026Participated
$110 MSeries C
CorePower Magnetics
Sep 2026Led
$11 MOther Equity
Form Energy
Aug 2026Participated
$750 MSeries G
Superlight
Jun 2026Led
$21 MSeries A
Foundation Alloy
Jun 2026Participated
$22 MSeries A
Blue Energy
Apr 2026Participated
$380 MOther Equity
Terrestrial Bio
Mar 2026Participated
$50 MSeries C
Axiomatic AI
Mar 2026Led
$18 MSeed
DG Matrix
Feb 2026Led
$60 MSeries A
T-robotics
Feb 2026Led
$32 MSeries A
Trener Robotics
Feb 2026Led
$32 MSeries A
Overview Energy
Dec 2025Participated
$20 MOther Equity
42
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Deal Distribution

Engine Ventures: 42 funding rounds are recorded in the selected participation categories.All available history.
Engine Ventures: 42 funding rounds are recorded in the selected participation categories. All available history
Round typeLed dealsParticipated deals
Seed95
Series A103
Series B01
Series C+06
Other Equity44

Monthly Deal Activity

Engine Ventures: 42 deals are recorded across 37 months.All available history.
Engine Ventures: 42 deals are recorded across 37 months. All available history
MonthDeals
Oct '231
Nov '230
Dec '231
Jan '240
Feb '242
Mar '244
Apr '240
May '243
Jun '241
Jul '241
Aug '242
Sep '242
Oct '242
Nov '241
Dec '241
Jan '252
Feb '251
Mar '250
Apr '251
May '252
Jun '250
Jul '250
Aug '250
Sep '251
Oct '251
Nov '250
Dec '252
Jan '260
Feb '263
Mar '262
Apr '261
May '260
Jun '262
Jul '260
Aug '261
Sep '261
Oct '261

Sector Breakdown

Engine Ventures: Clean Energy & Sustainability is the largest displayed sector by deal count (16 deals).All available history.

A deal can appear in multiple sectors, so sector totals may overlap. Capital represents disclosed total round sizes, not fund cheque sizes.

Engine Ventures: Clean Energy & Sustainability is the largest displayed sector by deal count (16 deals). All available history
SectorDeals
Clean Energy & Sustainability16
Manufacturing14
Space & Frontier Tech14
Health & Life Sciences10
Hardware & Robotics7
AI & Machine Learning6
Enterprise Software3
Data, Analytics & IT3
Transportation & Logistics2
Consumer & Lifestyle2
Networks, Cloud & Communication1
Professional Services1
Real Estate & Construction1

Deal Size Distribution

Engine Ventures: 42 rounds have a disclosed size in the displayed size bands.All available history.

Undisclosed round sizes are excluded. Capital represents total round sizes, not fund cheque sizes.

Engine Ventures: 42 rounds have a disclosed size in the displayed size bands. All available history
Round size band (USD)Deals
<$5M2
$5M-$10M14
$10M-$25M11
$25M-$50M6
$50M-$100M3
$100M-$250M3
$250M-$500M2
$500M-$1B1
$1B+0

Deals By Geography

Engine Ventures: United States has the largest recorded deal count among the displayed regions (40 deals).All available history.

Top 2 of 2 regions; European countries are grouped as Europe.

Engine Ventures: United States has the largest recorded deal count among the displayed regions (40 deals). All available history
RegionDeals
United States40
Europe2
Engine Ventures: 20 co-investors are shown, with Blindspot Ventures sharing 4 recorded deals.All available history.

Co-Investors

Bubble size = shared deals

Click a bubble to open that fund in a new tab.

Shows up to 20 co-investors ranked by shared deals. Deals may be shared with multiple funds, so rows overlap. Capital is total round size, not fund cheque size.

Engine Ventures: 20 co-investors are shown, with Blindspot Ventures sharing 4 recorded deals. All available history
Co-investorShared deals
Blindspot Ventures4
Breakthrough Energy Ventures4
Energy Impact Partners4
Fine Structure Ventures4
New Climate Ventures4
At One Ventures3
IAG Capital Partners3
Lowercarbon Capital3
Material Impact3
MCJ Collective3
RA Capital Management3
T. Rowe Price Associates3
Tyche Partners3
VXI Capital3
21502
America's Frontier Fund2
Arosa Ventures2
Berkeley SkyDeck Fund2
BP Ventures2
Cadence Design Systems2

Investment Strategy

Engine Ventures: Led accounts for 55% and participating for 45% of round participation.All available history.
Engine Ventures: Led accounts for 55% and participating for 45% of round participation. All available history
CategoryDeals (count)Share (%)
Led2355%
Participating1945%
Engine Ventures: Single-lead accounts for 43% and co-led for 57% of lead dynamics.All available history.
Engine Ventures: Single-lead accounts for 43% and co-led for 57% of lead dynamics. All available history
CategoryDeals (count)Share (%)
Single-lead1043%
Co-led1357%

Team

Israel Ruiz

Chief Executive Officer and co-founder

Michael Kearney
Reed Sturtevant

General Partner