TP

Tom Preston-Werner

North America, California, United States, San Francisco

Description

Tom Preston-Werner, best known as the co-founder and former CEO of GitHub, has transitioned his entrepreneurial acumen into a significant role as an investor through Preston-Werner Ventures. Co-founded with his wife, Theresa Preston-Werner, this San Francisco-based family office primarily focuses on early-stage technology companies. His deep-rooted experience in building and scaling developer-centric platforms at GitHub provides a unique lens through which he identifies and supports promising startups.

Preston-Werner Ventures actively seeks out innovative companies, with a particular emphasis on sectors such as developer tools, artificial intelligence, biotechnology, and climate technology. The firm is recognized for its founder-friendly approach, offering not just financial capital but also strategic guidance and mentorship. They aim to partner with visionary founders who are developing foundational technologies and disruptive solutions poised to make a substantial impact on their respective industries.

The firm typically participates in seed and Series A funding rounds. While investment amounts can vary based on the stage and specific needs of the company, Preston-Werner Ventures is known to write initial checks ranging from $500,000 to $5,000,000, with the potential for larger follow-on investments in successful portfolio companies. Their extensive portfolio reportedly includes investments in over 100 companies, showcasing a broad and active engagement within the global startup ecosystem. Notable early investments include participation in companies like OpenAI, Replit, and Warp, underscoring their commitment to cutting-edge and impactful ventures.

Investor Profile

Tom Preston-Werner has backed more than 50 startups, with 4 new investments in the last 12 months alone. The firm has led 2 rounds, about 4% of its total and boasts 0 exits across its portfolio.

Investment Focus Highlights

  • Concentrates on Seed, Series A, Pre Seed rounds (top funding stages).
  • Majority of deals are located in United States, Canada, United Kingdom.
  • Strong thematic focus on Software, Information Technology, Developer Tools.
  • Typical check size: $500K – $5M.

Stage Focus

  • Seed (54%)
  • Series A (22%)
  • Pre Seed (10%)
  • Series B (6%)
  • Angel (4%)
  • Series Unknown (2%)
  • Series C (2%)

Country Focus

  • United States (74%)
  • Canada (4%)
  • United Kingdom (4%)
  • Singapore (2%)
  • Estonia (2%)
  • Sweden (2%)
  • Spain (2%)
  • Germany (2%)
  • Ireland (2%)
  • United Arab Emirates (2%)

Industry Focus

  • Software
  • Information Technology
  • Developer Tools
  • Artificial Intelligence (Ai)
  • Database
  • Generative Ai
  • Internet
  • Machine Learning
  • Developer Platform
  • Saas
circle-line
FAQ

Frequently Asked Questions

Learn who this investor regularly partners with—both firms and angels—and explore their latest activity.

Who does Tom Preston-Werner frequently co-invest with?

Root Ventures
North America, California, United States, San Francisco
Co-Investments: 2
8VC
North America, California, United States, San Francisco
Co-Investments: 2
Liquid 2 Ventures
North America, California, United States, San Francisco
Co-Investments: 2
Uncorrelated Ventures
Europe, England, United Kingdom, London
Co-Investments: 2
Andreessen Horowitz
North America, California, United States, Menlo Park
Co-Investments: 5
Redpoint
North America, California, United States, Menlo Park
Co-Investments: 2
Alumni Ventures
North America, New Hampshire, United States, Manchester
Co-Investments: 4
Notable Capital
North America, California, United States, Menlo Park
Co-Investments: 3
OSS Capital L.P.
North America, California, United States, San Francisco
Co-Investments: 4
2048 Ventures
North America, New York, United States, New York
Co-Investments: 2

Which angels does Tom Preston-Werner often collaborate with?

Paul Copplestone
Asia, Singapore
Shared Deals: 3
JD
North America, California, United States, Palo Alto
Shared Deals: 3
SC
Europe, Berlin, Germany, Berlin
Shared Deals: 3
GP
Europe, England, United Kingdom, London
Shared Deals: 2
GR
North America, California, United States, San Francisco
Shared Deals: 3
SK
North America, New York, United States, New York
Shared Deals: 2
CB
North America, California, United States, San Francisco
Shared Deals: 2
OP
North America, New York, United States, New York
Shared Deals: 3
NR
North America, California, United States, San Francisco
Shared Deals: 4
BY
North America, North Carolina, United States, Raleigh
Shared Deals: 3

What are some of recent deals done by Tom Preston-Werner?

Sourcetable — AI spreadsheet & data analyst

San Francisco, California, United States

Pair with digital intelligence in your spreadsheets. Life is better this way.

Artificial Intelligence (AI)Data StorageInformation TechnologyProductivity ToolsSoftware
SeedMar 31, 2025
Amount Raised: $4,300,000
MoneyHash

San Francisco, California, United States

MoneyHash is a payment platform that provides access to payment and fintech services.

Financial ServicesFinTechPayments
SeedJan 20, 2025
Amount Raised: $5,200,000
Langbase

San Francisco, California, United States

Langbase is the most powerful serverless platform for building AI products. Build, deploy, and scale AI agents with managed memory (RAG).

Developer Tools
Pre SeedAug 1, 2024

Not Diamond allows developers to automatically route AI questions to the most appropriate models.

Information TechnologyInternetMachine Learning
SeedJul 30, 2024
Amount Raised: $2,300,000
Alinia AI

Barcelona, Catalonia, Spain

Alinia AI is an alignment platform that allows enterprises to implement generative AI in a safe and controlled manner.

Artificial Intelligence (AI)Generative AI
Pre SeedJun 5, 2024
Amount Raised: $2,392,324
OpenPipe

San Francisco, California, United States

OpenPipe is an AI platform that enables software developers to build datasets and fine-tune prompts with a more affordable model.

Artificial Intelligence (AI)Information TechnologySaaSSoftware Engineering
SeedMar 26, 2024
Amount Raised: $6,700,000
MoneyHash

San Francisco, California, United States

MoneyHash provides access to payment and fintech services across the Middle East & Africa with one simple integration.

Financial ServicesFinTechPayments
SeedFeb 27, 2024
Amount Raised: $4,500,000
Liquid AI

Cambridge, Massachusetts, United States

Liquid AI is a developer of AI applications that help improve human experience.

Artificial Intelligence (AI)Generative AIInformation TechnologyMachine Learning
SeedDec 1, 2023
Amount Raised: $37,600,000
AppFlowy

Singapore, Central Region, Singapore

AppFlowy is an open-source no code platform for wikis, notes, tasks, and more.

Enterprise Software
SeedNov 16, 2023
Amount Raised: $6,400,000
l`école

New York, New York, United States

l'école AI is a computer vision-focused development platform.

Artificial Intelligence (AI)SoftwareWeb Development
SeedOct 26, 2023
Amount Raised: $3,000,000