Where does Marc Tarpenning work?

Marc Tarpenning is Partner at Spero Ventures and Board director at Sora Fuel and Board director at Wattch.

What check size does Marc Tarpenning write?

Marc Tarpenning typically writes checks of $250K – $5M.

What boards does Marc Tarpenning sit on?

Marc Tarpenning holds tracked board seats at Clarity Movement, Singularity Energy, Sora Fuel, Tortuga Agricultural Technologies, Wattch.

What companies has Marc Tarpenning invested in?

Investments tracked here include Alta Motors, Artelize, Clarity Movement, Corvus Robotics, HyLight, Mast Reforestation, Singularity Energy, Sora Fuel, Telo Trucks, Tesla, Wattch.

Where did Marc Tarpenning go to school?

Marc Tarpenning studied at University of California, Berkeley (BA, Computer Science).

Marc Tarpenning

Investor

Partner at Spero Ventures · Co-founder at ISV · Board director at Sora Fuel · Board director at Wattch · Board director at Clarity

San Francisco Bay Area

Writes $250K – $5M checks · typically $2M

Find your path to Marc

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

Steve AbbottunlockedMarc: together at University of California, Berkeley (1985)

×4Marc: together at University of California, Berkeley

Marc: together at The Nueva School

Marc: together at Sutardja Center for Entrepreneurship and Technology

About

Venture Partner interested in helping entrepreneurs drive radical change in old industries through sustainable products and better experiences.

Contact· self-published, not guessed

m•••@spero.vcreveal

Board director at Sora Fuel

Intro paths

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In turn, Marc can intro founders to Sora Fuel's investors below.

Sora Fuel's investors · 6

Innovation UBCVancouver Inspired CapitalNew York · $500K – $20M checks LeitmotifPalo Alto Spero VenturesBurlingame · $2M – $4M checks · since 2026 The Engine VenturesCambridge Wireframe VenturesSan Francisco · $500K – $2M checks

Co-founders at Sora Fuel

Curtis Berlinguette

Board director at Wattch

Intro paths

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In turn, Marc can intro founders to Wattch's investors below.

Wattch's investors · 2

Spero VenturesBurlingame · $2M – $4M checks · since 2022 VoLo Earth VenturesSnowmass Village · $2M checks · since 2022

Co-founders at Wattch

Jared DuncanFounder

Board director at Clarity

Intro paths

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In turn, Marc can intro founders to Clarity's investors below.

Clarity's investors · 7

Blue Bear VenturesSan Francisco · $100K – $400K checks Humba VenturesSan Francisco · $750K checks · since 2026 Kickstart VenturesManila · $30K – $20M checks LMNT VenturesMercer Island · since 2026 Regeneration.VCRedondo Beach · $1M – $3M checks · since 2026 Soundproof VenturesPalo Alto · $500K – $25M checks Spero VenturesBurlingame · $2M – $4M checks

Co-founders at Clarity

David LuFounder

Experience

Archaeological Institute of AmericaGeneral Trusteecurrent2026 — present
Spero VenturesVenture Partnercurrent2019 — presentSan Francisco Bay Area
Sutardja Center for Entrepreneurship and TechnologyMember of the Advisory Boardcurrent2018 — presentBerkeley, California, USA
SkyDeck | BerkeleyAdvisorcurrent2015 — presentBerkeley, CA
Clearpath RoboticsMember of the Advisory Board2016 — 2023
Foothill CollegeAdvisory Board Member, Science Learning Institute2012 — 2023
The Nueva SchoolMember Board of Trustees2014 — 2023San Francisco Bay Area
Innovate Public SchoolsMember Board Of Directors2015 — 2022San Francisco Bay Area
Woodside Elementary School DistrictTrustee2009 — 2018San Francisco Bay Area
San Mateo County Committee on School District OrganizationMember, Supervisorial District Three2013 — 2018
GreenstartMentor2011 — 2013
Mayfield FundEntrepreneur in Residence2008 — 2009
Tesla Motors Inc.VP Electrical Engineering, Co-Founder2003 — 2008
Packet DesignVP Engineering2000 — 2003
NuvoMedia Inc.CFO, VP Engineering, Co-Founder1997 — 2000
Gemstar-TV GuideVP Engineering2000

Skills & more

Embedded Systems34Entrepreneurship99Start-ups99Software Systems21Venture Capital66Strategy76Leadership14Fundraising10Energy16Cleantech23Corporate Development2Engineering8

+12 more

Mobile DevicesProduct ManagementProduct DevelopmentElectronicsSaaSBusiness DevelopmentAngel InvestingStrategic PartnershipsStrategic PlanningPublic SpeakingMergers & AcquisitionsSoftware Development

Languages English

From Marc's professional profile.

Deals · 3

Singularity EnergyBoard seat

via Spero Ventures · filed Jan 2022 · $4.5M raise

Tortuga Agricultural TechnologiesBoard seat

via Spero Ventures · filed Nov 2021 · $20M raise

Clarity MovementBoard seat

via Spero Ventures · filed Mar 2020 · $5.1M raise

Attribution from SEC filings, press coverage, and firm rosters.

Other disclosed investments

Board seats

Sora Fuel Wattch

Investor

Alta MotorsArtelizeCorvus Robotics HyLight Mast Reforestation Sora Fuel Telo Trucks Tesla Wattch

Sources: SEC Form D filings · curated public sources.

Colleagues at Spero Ventures

Andrew Parker

An unabashed tech geek living in Hawaii

Nolan Shah

Associate at Spero Ventures

Sara Eshelman

General Partner at Spero Ventures

Shripriya Mahesh

General Partner at Spero Ventures

Stephen Wemple

Principal at Spero Ventures

Network3

Ali Partovi

CEO at Neo

Andrew Parker

An unabashed tech geek living in Hawaii

Christopher Klaus

Partner at Cyberlaunch

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

Frequently asked questions

Who is Marc Tarpenning?: Venture Partner interested in helping entrepreneurs drive radical change in old industries through sustainable products and better experiences.
Where does Marc Tarpenning work?: Marc Tarpenning is Partner at Spero Ventures and Board director at Sora Fuel and Board director at Wattch.
What check size does Marc Tarpenning write?: Marc Tarpenning typically writes checks of $250K – $5M.
What boards does Marc Tarpenning sit on?: Marc Tarpenning holds tracked board seats at Clarity Movement, Singularity Energy, Sora Fuel, Tortuga Agricultural Technologies, Wattch.
What companies has Marc Tarpenning invested in?: Investments tracked here include Alta Motors, Artelize, Clarity Movement, Corvus Robotics, HyLight, Mast Reforestation, Singularity Energy, Sora Fuel, Telo Trucks, Tesla, Wattch.
Where did Marc Tarpenning go to school?: Marc Tarpenning studied at University of California, Berkeley (BA, Computer Science).