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Tom Preston-Werner

Tom Preston-Werner

Verified: Jun 2026 (Profile Confirmed)👑 Lead Investor
San Francisco, CA
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Check Size Range

Flexible Check Size

Preferred Stages
pre-seedseed

Background & Investment Thesis

Co-founder of GitHub. Angel investor in developer tools and open-source startups.

Focus Industries

developer-toolsopen-sourcesaasai

Notable Portfolio & Backed Deals

AI Outreach Insight94% Match Score

Active investor in developer-tools, open-source, saas, ai. Highly responsive to concise pitches with clear traction metrics.

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Verified Deal Signals Active

Key Deal Terms & Quick Facts

Audited venture due diligence summary for Tom Preston-Werner

Verified Deal Signals
Typical Check Size

$100k – $3M

Direct angel check per syndicate / round
Target Stages
pre-seedseed
Early-stage entry valuation priority
Founder Pitch Contact

Verified (Protected — Unlock)

Direct mailbox protected against spam
Focus Industries & Categories
developer-toolsopen-sourcesaasai
Notable Backed Deals & StartupsInternal company dossiers
GitHubChatterbug

Frequently Asked Questions about Tom Preston-Werner

What is Tom Preston-Werner's typical angel check size?▼

Tom Preston-Werner's investment check size typically ranges around $100k – $3M, participating in early-stage financing rounds alongside leading venture capital funds and angel syndicates.

What stages and sectors does Tom Preston-Werner invest in?▼

Tom Preston-Werner primarily backs early-stage startups across pre-seed, seed stages, focusing on developer-tools, open-source, saas, ai.

What companies are in Tom Preston-Werner's angel portfolio?▼

Tom Preston-Werner has backed notable companies including GitHub, Chatterbug.

How can startup founders contact or pitch Tom Preston-Werner?▼

Founders can access verified direct email contact channels, AI-assisted pitch drafting, and syndicate warm intro paths for Tom Preston-Werner through OpenAngels.