Fundraising Fox
🦊/People
Sign in

Katie Rae

Investor

CEO & Managing Partner at The Engine Ventures · Board director at Sublime Systems · Board director at Commonwealth Fusion Systems · Board director at via-separations

Cambridge, Massachusetts, United States

Find your path to Katie

1,270 people in our graph share verified history with Katie — schools, employers, funds. One of them is your warm intro.

Lawrence BarclayunlockedKatie: together at Techstars (2014)
×9Katie: together at Techstars
×2Katie: together at MIT

About

Katie Rae focuses on tough tech, backing non‑pivotable startups with decade‑plus roadmaps and fixed milestones, applies a CFO test to climate/deep‑tech economics, and bridges universities, national labs, corporates and government.

Contact· self-published, not guessed

Invests in

BiotechClimate TechDeep TechEnergyHardwareHealthtech

Board director at Sublime Systems

Intro paths

→

In turn, Katie can intro founders to Sublime Systems's investors below.

Sublime Systems's investors · 7

Azolla VenturesCambridge · since 2021CRH VenturesDublin · since 2021Energy Impact PartnersNew York · $5M – $20M checks · since 2023Khosla VenturesMenlo Park · $5K – $50M checks · since 2021Lowercarbon CapitalLos Angeles · $100K – $5M checks · since 2023Suffolk TechnologiesBoston · since 2025The Engine VenturesCambridge · since 2021

Co-founders at Sublime Systems

YC
Yet-Ming ChiangExecutive Officer, Director
LELeah Ellis
Leah EllisExecutive Officer, Director

Board director at Commonwealth Fusion Systems

Intro paths

→

In turn, Katie can intro founders to Commonwealth Fusion Systems's investors below.

Commonwealth Fusion Systems's investors · 48

Advection Growth CapitalNew York CityArmada Investment AGBaruch Future VenturesSan Francisco · $100K – $1M checks · since 2025Bay Bridge Ventures ClimateBerkeleyBeni Venture CapitalMiami · $100K – $250K checksBrainstorm VenturesSan FranciscoBreakthrough Energy VenturesBoston · $500K – $50M checks · since 2021Coatue ManagementNew York · $1M – $20M checks · since 2021Collaborative FundNew York · $500K – $1M checksCongruent VenturesSan Francisco · $100K – $5M checksDevelopment Bank of JapanTokyo · since 2025Devonshire Investorssince 2020DFJSan Mateo · since 2021Doon CapitalSilicon ValleyEmerson Collective InvestingPalo Alto · $100K – $1M checksEni NextBoston · since 2020Equinor VenturesStavanger · $1M – $70M checks · since 2021Evolution VC PartnersNew YorkFine Structures VenturesCambridgeFootPrint CoalitionLos Angeles · $50K – $1M checks · since 2021Future VenturesLos Altos · $1M – $10M checks · since 2021Galaxy InteractiveNew York · $1M – $20M checks · since 2025Gigascale CapitalPalo Alto · since 2025Global BrainTokyo · $100K – $184M checksHOF CapitalNew York · $25K – $15M checks · since 2025JERATokyo · since 2025Khosla VenturesMenlo Park · $5K – $50M checks · since 2020Kleiner PerkinsMenlo Park · $500K – $15M checks · since 2021LOWERCARBONJackson · $1M – $50M checks · since 2021Lowercarbon CapitalLos Angeles · $100K – $5M checksMitsui & Cosince 2025Neva Sgr.TurinNTT DOCOMO VenturesTokyoNVenturesSanta ClaraPerot JainDallas · $500K checksPreston-Werner VenturesSan Francisco Bay Area · $500K – $3M checksPrime Movers LabJackson · $2M – $30M checksSafar PartnersCambridge · since 2020Sand Hill AngelsMenlo Park · $50K – $2M checksSchooner CapitalBoston · since 2020Starbridge Venture Capital LlcWashingtonStarlight VenturesMiami · $100K – $3M checks · since 2020Sumitomo Mitsui Banking CorporationTokyo · since 2025TemasekSingapore · since 2020The Engine VenturesCambridgeThrive CapitalNew York · $500K – $25M checksTiger Global ManagementNew York · $1M – $100M checks · since 2021Woori Venture Partners Us, Inc.Silicon Valley · since 2025

Co-founders at Commonwealth Fusion Systems

BSBrandon Sorbom
Brandon SorbomFounder
RM
Robert MumgaardExecutive Officer, Director
DBDaniel Brunner
Daniel BrunnerExecutive Officer
BMBob Mumgaard
Bob MumgaardFounder

Board director at via-separations

Intro paths

→

In turn, Katie can intro founders to via-separations's investors below.

via-separations's investors · 7

Azolla VenturesCambridgeCapTableClimate InvestmentLondonEmbark VenturesLos AngelesPrime Impact FundCambridge · $1M – $4M checksSafar PartnersCambridge · since 2021The Engine VenturesCambridge

Co-founders at via-separations

BKBrent Keller
Brent KellerExecutive Officer, Director
SDShreya Dave
Shreya DaveExecutive Officer, Director

Experience

  1. Engine VenturesCEO and Managing Partnercurrent2017 — presentCambridge, Massachusetts, United States
  2. Form EnergyBoard Membercurrent2017 — present
  3. Commonwealth Fusion SystemsBoard Membercurrent2018 — present
  4. Boston MetalBoard Membercurrent2018 — present
  5. Sublime SystemsBoard Membercurrent2021 — present
  6. EVOLOHBoard Membercurrent2023 — present
  7. TeraDARBoard Membercurrent2024 — present
  8. The Engine AcceleratorBoard Member2017 — 2024Cambridge, MA
  9. The Engine AcceleratorCEO and Managing Partner2017 — 2023Cambridge, MA
  10. Project 11Managing Director2014 — 2017Project11.com
  11. TechStarsChairman, Techstars Boston2014 — 2017TechStars Boston
  12. TechStarsManaging Director2010 — 2014Boston, MA
  13. Startup InstituteCo-Founder2012 — 2016Cambridge, MA
  14. MITLecturer2010 — 2014
  15. Microsoft Startup LabsSr. Director, Product2007 — 2010
  16. Eons.comSVP Product2006 — 2007
  17. Lycos, Inc.VP Community and Communications2001 — 2003
  18. AltaVistaCo GM Ragingbull.com1999 — 2001
  19. Zip2Product Manager1997 — 1999

Skills & more

Entrepreneurship99Start-ups99Strategic Partnerships57Business Strategy30Leadership99Monetization3User Experience13Venture Capital50Product Management74Investments29Management62New Business Development4
+12 moreStrategyProgram ManagementProduct DevelopmentInnovationSaaSBusiness DevelopmentE-commerceCorporate DevelopmentTeam LeadershipProduct MarketingMobile ApplicationsMobile Devices

From Katie's professional profile.

Investments

Investor

FlywireGrabCADPillPack

Per the firm's website.

Colleagues at The Engine Ventures

Alaina Hartnett
Associate at The Engine Ventures
Ann DeWitt
General Partner at The Engine Ventures
Bettina Metais
Vice President of Investor Relations & Operations at The Engine Ventures
Colleen Calhoun
Investor at BURNT ISLAND VENTURES
Dan Resnicow
Operating Partner at The Engine Ventures
Darby Dunn
Executive in Residence at The Engine Ventures
David Bradwell
Operating Partner at The Engine Ventures
Deepa Rao
Associate at The Engine Ventures

Network1

Ann DeWittScout
General Partner at The Engine Ventures

Investors connected to Katie in public investor directories — a warm-intro map.

Frequently asked questions

Who is Katie Rae?
Katie Rae focuses on tough tech, backing non‑pivotable startups with decade‑plus roadmaps and fixed milestones, applies a CFO test to climate/deep‑tech economics, and bridges universities, national labs, corporates and government.
Where does Katie Rae work?
Katie Rae is CEO & Managing Partner at The Engine Ventures and Board director at Sublime Systems and Board director at Commonwealth Fusion Systems and Board director at via-separations.
What does Katie Rae invest in?
Katie Rae invests in Biotech, Climate Tech, Deep Tech, Energy, Hardware, Healthtech.
What boards does Katie Rae sit on?
Katie Rae holds tracked board seats at Boston Metal, Commonwealth Fusion Systems, Form Energy, Teradar.
What companies has Katie Rae invested in?
Investments tracked here include Flywire, GrabCAD, PillPack.
Where did Katie Rae go to school?
Katie Rae studied at Yale School of Management (MBA, Strategy); Oberlin College (BA, Biology).

Founder mafias

Same school

Shared employers