AUM
~$1 billion+ (estimated based on GitHub sale proceeds)
Principals
2
Principal Net Worth
$2.0B
Founded
2013 (around time of Giving Pledge signing)
Data Flags
Net worth estimated (~$1-2B, single source - GitHub sale); not on Forbes/Bloomberg billionaire lists; foundation assets ~$67M via 990-PF; PWV Fund I verified; Giving Pledge (2013) confirmed
Preston-Werner Foundation Research
Private foundation / Philanthropic family officeMedium ConfidenceSan Francisco Bay Area, California
Last verified: Jan 17, 2026
Details
- Website
- Not publicly disclosed
- Phone
- Not publicly disclosed
- Source of Wealth
- Technology (GitHub co-founder, sold to Microsoft for $7.5B in 2018)
- Assets Under Management
- ~$1 billion+ (estimated based on GitHub sale proceeds)
- Source File
- research/organizations/preston-werner-foundation.md
- UID
- fo-preston-werner-foundation
Also Known As
Preston-Werner Foundation (former name)128 Collective Foundation (current name)128 CollectivePreston-Werner Family FoundationPreston-Werner Ventures (PWV) - separate investment entityTom and Theresa Preston-Werner FoundationTPW Foundation (possible)
Principals (2)
Team Members (2)
Related Entities (5)
128 Collective FoundationFoundation
(formerly Preston-Werner Foundation) - Private foundation for philanthropic activities; ~$67M assets (2021); ~10 staff
180 StudiosSubsidiary
Creative production software company; Tom is CEO (2025)
Preston-Werner FoundationFoundation
Private foundation for philanthropic activities
Preston-Werner VenturesSubsidiary
Investment vehicle (if applicable)
Preston-Werner Ventures (PWV)Subsidiary
Early-stage VC firm; 175+ portfolio companies; raising $100M Fund I (2025)
Known Associates (4)
Relationship Strength
Loading relationships...
Sources (20)
- Giving Pledge - Tom and Theresa Preston-Werner
- Wikipedia - Tom Preston-Werner
- Wikipedia - GitHub
- TechCrunch - Microsoft Acquires GitHub for $7.5B
- Chatterbug Official Website
- Jekyll Project
- Forbes - GitHub Founders
- Bloomberg - Tom Preston-Werner
- PWV Team Page - Tom Preston-Werner
- PWV Team Page - David Price
- PWV Team Page - David Thyresson
- PWV Announcement - Fund I
- LinkedIn - Tom Preston-Werner
- LinkedIn - Theresa Preston-Werner
- LinkedIn - David Price
- LinkedIn - David Thyresson
- ProPublica - 128 Collective Foundation Nonprofit Filing
- Inside Philanthropy - Who Took the Giving Pledge in 2023
- Heavybit Podcast - Tom Preston-Werner on 128 Collective
- VP Land - 180 Studios Software Development Push
Changelog
- 2025-12-27** Added Current Team section with LinkedIn URLs for 128 Collective Foundation, Preston-Werner Ventures (PWV), and 180 Studios team members
- 2025-12-27** Updated Entities section to reflect 128 Collective Foundation name (formerly Preston-Werner Foundation) and PWV Fund I details
- 2025-12-27** Added 180 Studios as operating company with Tom as CEO
- 2025-12-11** Initial research file created