Heidi Roizen
InvestorPartner at Threshold Ventures · Lecturer, Stanford Threshold Venture Fellows program at Stanford University · Board director at Zoox · Board director at ShareThis
San Francisco Bay Area
Writes $2M – $10M checks · typically $7M
Find your path to Heidi
5,613 people in our graph share verified history with Heidi — schools, employers, funds. One of them is your warm intro.
About
Heidi Roizen is a partner at Threshold Ventures and serves as a corporate director for multiple companies including Upside Foods, M7, EdgeQ, Elementary Robotics, Freeform, Moonlake AI, OpsLevel, and Tia. She began her career as co-founder and CEO of software company T/Maker before its acquisition by Deluxe Corporation, followed by a role as VP of Worldwide Developer Relations at Apple, and has worked as a venture capitalist since 1999. Roizen holds undergraduate and MBA degrees from Stanford, where she has lectured since 2011 and serves on the Advisory Council for the Stanford Institute for Human-Centered Artificial Intelligence.
Contact· published on Heidi's own website
Board director at Zoox
Intro paths
In turn, Heidi can intro founders to Zoox's investors below.
Zoox's investors · 10
Co-founders at Zoox
Board director at ShareThis
Intro paths
In turn, Heidi can intro founders to ShareThis's investors below.
ShareThis's investors · 8
Experience
- Threshold VenturesPartnercurrent2014 — presentSan Francisco Bay Area
- Stanford UniversityLecturer, Stanford Threshold Venture Fellows programcurrent2011 — presentStanford
- Stanford Institute for Human-Centered Artificial Intelligence (HAI)Advisory Council Membercurrent2019 — presentPalo Alto, CA
- UPSIDE FoodsBoard Membercurrent2018 — presentSan Francisco Bay Area
- TiaBoard Membercurrent2024 — present
- M7 HealthBoard Membercurrent2026 — present
- Moonlake AIBoard Membercurrent2026 — present
- EdgeQ Inc.Board Membercurrent2026 — present
- FreeformBoard Membercurrent2026 — present
- Elementary RoboticsBoard Membercurrent2026 — present
- OpsLevelBoard Membercurrent2026 — present
- PlanetBoard Member2018 — 2025San Francisco Bay Area
- Invitation HomesBoard Member2020 — 2023Dallas, Texas, United States
- Daily Mail and General Trust plcBoard Member2012 — 2022London, United Kingdom
- Zoox Inc.Board Member2016 — 2020Menlo Park, CA
- DFJPartner2012 — 2018
- TiVoBoard Member2009 — 2014
- Mobius Venture CapitalManaging Director1999 — 2007
- National Venture Capital Asssociationmember of executive committee and board2003 — 2007
- AppleVice President World-World Wide Developer Relations1996 — 1997
- T/Makerco-founder and CEO1982 — 1996
Skills & more
+12 more
Social MediaBusiness StrategyMarketing StrategyStart-upsNew Business DevelopmentPublic RelationsProduct ManagementProduct MarketingStrategic PartnershipsCorporate DevelopmentProduct DevelopmentSaaSFrom Heidi's professional profile.
Deals · 3
Memphis MeatsBoard seat
via Threshold Ventures · filed Jan 2020 · $21.9M raise
ZooxBoard seat
via Threshold Ventures · filed Oct 2016 · $50M raise
ShareThisBoard seat
via Threshold Ventures · filed Oct 2015 · $1.7M raise
Attribution from SEC filings, press coverage, and firm rosters.
Colleagues at Threshold Ventures
Network3
Investors connected to Heidi in public investor directories — a warm-intro map.
Frequently asked questions
- Who is Heidi Roizen?
- Heidi Roizen is a partner at Threshold Ventures and serves as a corporate director for multiple companies including Upside Foods, M7, EdgeQ, Elementary Robotics, Freeform, Moonlake AI, OpsLevel, and Tia. She began her career as co-founder and CEO of software company T/Maker before its acquisition by Deluxe Corporation, followed by a role as VP of Worldwide Developer Relations at Apple, and has worked as a venture capitalist since 1999. Roizen holds undergraduate and MBA degrees from Stanford, where she has lectured since 2011 and serves on the Advisory Council for the Stanford Institute for Human-Centered Artificial Intelligence.
- Where does Heidi Roizen work?
- Heidi Roizen is Partner at Threshold Ventures and Board director at Zoox and Board director at ShareThis.
- What check size does Heidi Roizen write?
- Heidi Roizen typically writes checks of $2M – $10M.
- What boards does Heidi Roizen sit on?
- Heidi Roizen holds tracked board seats at Memphis Meats, ShareThis, Zoox.
- Where did Heidi Roizen go to school?
- Heidi Roizen studied at Stanford University Graduate School of Business (MBA); Stanford University (AB, English).
Same school
Also attended Stanford University Graduate School of Business1,980
+ 1,974 more
Also attended Stanford University2,000
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Shared employers
Also worked at Tia7
+ 1 more
Also worked at Moonlake AI2
Also worked at Daily Mail and General Trust plc5
Also worked at TiVo10
+ 4 more