Mark Siegel
InvestorManaging Director at Menlo Ventures
San Francisco, CA
Writes $250K – $15M checks · typically $12M
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About
Mark Siegel, an MIT-trained physicist-turned-VC with product experience at Oracle and Netscape, developed the Right Now Economy thesis to identify opportunities where mobile, social, cloud and data intersect.
Contact· self-published, not guessed
Invests in
AI & Machine LearningBiotechCleantechCloud ComputingCybersecurityEnergyFintechHealthtech
Beyond investing
- Education
- Studied at MIT (Bachelor of Science, physics) Studied at Stanford University's Graduate School of Business (MBA)
- Charities
- Siegel supports graduate physics students at MIT through a fund he established with his wife.
- More
- Siegel developed an investment thesis called The Right Now Economy focused on the intersection of mobile, social, cloud computing, and data. Siegel personally invests at the pre-seed stage in frontier technologies including energy, environmental tech, synthetic biology, and quantum computing, and advises the Menlo Bio Fund.
From published sources — common ground for a warm intro.
Deals · 2
Ember TechnologiesBoard seat
via Menlo Ventures · filed Nov 2023 · $21M raise
Cofactor GenomicsBoard seat
via Menlo Ventures · filed Aug 2023 · $2M raise
Attribution from SEC filings, press coverage, and firm rosters.
Other disclosed investments
Board seats
Investor
3T BiosciencesArubaBlueGill TechnologiesBread FinancialDropcamDstilleryEeroeXelateFox RoboticsGetaroundGridRivalHomeMeINVIDIINVIDI TechnologiesMintedNodeprimeOwlcamPeopleclick AuthoriaPernixDataPlatform9Pliant TechnologyPluribus NetworksRecursionRecursion PharmaceuticalsRedfastRightHandRNA NetworksRoam RoboticsRubricSchoonerSchooner Information TechnologySignifydSkydropSpeedDateSuperplumtCelltCell.ioTenorTintriVoltage SecurityWarby ParkerWristcamYellowbrickYellowbrick DataZuli
Sources: SEC Form D filings · curated public sources · the firm's website.
Colleagues at Menlo Ventures
Network6
Investors connected to Mark in public investor directories — a warm-intro map.
Frequently asked questions
- Who is Mark Siegel?
- Mark Siegel, an MIT-trained physicist-turned-VC with product experience at Oracle and Netscape, developed the Right Now Economy thesis to identify opportunities where mobile, social, cloud and data intersect.
- Where does Mark Siegel work?
- Mark Siegel is Managing Director at Menlo Ventures.
- What does Mark Siegel invest in?
- Mark Siegel invests in AI & Machine Learning, Biotech, Cleantech, Cloud Computing, Cybersecurity, Energy, Fintech, Healthtech.
- What check size does Mark Siegel write?
- Mark Siegel typically writes checks of $250K – $15M.
- What boards does Mark Siegel sit on?
- Mark Siegel holds tracked board seats at Cofactor Genomics, Ember Technologies, Fox Robotics, RightHand.
- What companies has Mark Siegel invested in?
- Investments tracked here include 3T Biosciences, Aruba, BlueGill Technologies, Bread Financial, Cofactor Genomics, Dropcam, Dstillery, Eero, eXelate, Fox Robotics, Getaround, GridRival, and 34 more.
About this profile. Compiled from public sources — Menlo Ventures's own website, regulatory filings and public professional profiles — and summarised by Fundraising Fox; every fact is kept with where it came from. Spotted an error, or would rather not be listed? Email privacy@fundraisingfox.com · How we build profiles · Your rights











