Madison H. is a Board Partner at Greylock Partners, whose known portfolio counts 10 companies.
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Investment focus
Contacts
Affiliated funds' portfolios
Board Partner at Greylock Partners, whose known portfolio counts 10 companies
- Baseten
- Entrepreneurs First
- Braintrust
- Resolve.ai
- Upwind Security
- Pepper
- Censys
- Bretton AI
- Cogent Security
- Cylake
Investor Profile
The listing covers sectors AI, Commerce, Consumer and FinTech, and focus areas AI Applications, AI Infrastructure, Analytics and Cloud Infrastructure. Startups operating in these areas may find Madison H. relevant.
Stage-wise, the deals at Greylock Partners cluster around Growth, Pre-Seed and Seed rounds.
The firm portfolio and the focus above give founders context on whether Madison H. matches their raise.
Colleagues at Greylock Partners
Showing 20 of 29
Simon Rothman
Partner
Palo Alto, United States
Joseph Ansanelli
Venture Partner
San Francisco, United States
Aneel Bhusri
Advisory Partner
United States
James Slavet
Venture Partner
San Francisco, United States
Hadar Dor
Greylock Scout (Inaugural Cohort)
San Francisco, United States
Josh McFarland
Partner
San Francisco, United States
Saam Motamedi
General Partner
Stanford, United States
Seth Rosenberg
General Partner
New York, United States
Corinne Marie Riley
Partner
San Francisco, United States
John Delaney
Principal
San Francisco, United States
Bukky Adebayo
Venture Scout
San Francisco, United States
Asheem Chandna
Partner
San Francisco, United States
David Kossnick
Scout
Bronx, United States
David S.
Advisory Partner
San Francisco, United States
David Strohm
Partner
Millbrae, United States
Mike Duboe
General Partner
San Francisco, United States
Bill Helman
Partner
Cambridge, United States
Don Sullivan
Partner
Boston, United States
David Wadhwani
Venture Partner
San Francisco, United States
Howard Cox
Special Limited Partner
Menlo Park, United States
Frequently asked questions
Who is Madison H.?
Madison H. is a venture capital investor based in United States, listed as Board Partner at Greylock Partners. The known portfolio of that firm counts 10 companies. That portfolio belongs to the firm, not to Madison H. personally.
What does Madison H. invest in?
Listed sectors include AI, Commerce, Consumer and FinTech; listed focus areas include AI Applications, AI Infrastructure, Analytics and Cloud Infrastructure. Those tags come from the portfolios of the firms this profile is attached to, so they read as a record of what has been backed rather than a stated preference for what comes next.
What stage does Madison H. invest at?
Greylock Partners appears in Growth, Pre-Seed and Seed rounds across its known deals, and Madison H. is listed there as Board Partner. Stage is the strongest single filter when you build a target list: an investor with no record at your stage rarely starts with you.
Which firm is Madison H. listed at?
Madison H. is listed as Board Partner at Greylock Partners. 29 other people in the database share a firm with Madison H.
How do I contact Madison H.?
A LinkedIn page is on file for Madison H. It is readable inside RaiseHunt after you create an account. The database holds no email address and no phone number for this profile.
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Data: RaiseHunt investor dataset · Snapshot 5 September 2026 · How this data is built · Report a correction or request removal