Jamie Sullivan
Partner at Andreessen Horowitz
San Francisco, California
Jamie Sullivan, Partner at Andreessen Horowitz is an active investor based in San Francisco, California. This profile covers what Jamie Sullivan backs, at which stage, and how founders can reach out in 2026.
- Investor type
- VCPEFinance OperatorInvestor
- Stages
- Series ASeries B
- Location
- San Francisco, California
- Typical check
- $2M
How to reach Jamie Sullivan
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About this profile
This profile is part of Round Funded, an investor database and outreach platform for founders. It covers 60,000+ active VCs, angels, family offices and accelerators with verified contacts, lets you send pitches from your own Gmail, and includes a free Data Room for your raise. How this data is built.
Cite this page
Round Funded. "Jamie Sullivan." Round Funded investor database, updated September 9, 2026.
Stable URL, it will not change: https://www.roundfunded.com/en/investor/jamie-sullivan
Frequently Asked Questions
Who is Jamie Sullivan?
Jamie Sullivan is an active investor, Partner at Andreessen Horowitz. Round Funded tracks their focus and activity alongside thousands of investors.
What stage does Jamie Sullivan invest at?
Jamie Sullivan typically invests at Series A and Series B. Lead with traction that fits the stage when you reach out.
What is Jamie Sullivan's typical check size?
Jamie Sullivan typically writes checks around $2M. Use it as a signal for whether your raise fits their stage.
How do founders reach investors like this?
Round Funded lists active investors with verified, professional contact details for signed-up founders. Filter by sector, stage and location, then send a personalized pitch from your own inbox.
What is Round Funded?
Round Funded is an investor database and outreach platform for startup founders. It lists 60,000+ active investors with verified contacts, filtered to recent investment activity, and lets founders send personalized pitches from their own Gmail, track replies, and share a free Data Room. Round+ starts at $99 per month with a 3-day trial.