Preston-Werner Ventures
314 Lytton Ave Ste 200, Palo Alto, California, 94301, United States
Overview
Preston-Werner Ventures is an investment firm that currently funds projects at the intersection of social justice, climate change, and technology. The company is committed in making investments in order to advance justice and dignity in the present. They invest in solutions to remove and reduce the amount of carbon dioxide in the atmosphere. Preston-Werner Ventures was founded by Tom Preston-Werner and Theresa Preston-Werner.
- Total investments
- 17
- Lead investments
- 2
- Investments · 12mo
- 4
- Active investors
- 1
Sector focus
- Information Technology
- Social Impact
- Technical Support
- Venture Capital
Investment portfolio
- Unkey
Participated · Seed · Apr 2026
Unkey builds Unkey Deploy, a platform designed to ship production APIs on real servers with features the company highlights as no serverless tradeoffs, no cold starts, and instant rollbacks. Unkey Deploy bundles deployment with auth, rate limits, and usage tracking in a single platform. The company has made Unkey Deploy available as part of this product launch. Proceeds from the recent $4.6M financing are being put toward Unkey Deploy. The article did not provide operating metrics, revenue figures, founding year, or location.
- Thunder Compute
Participated · Seed · Mar 2026
Thunder Compute has developed a GPU virtualization layer over four years and has run it in its own cloud with over 10,000 users. The software aims to increase GPU utilization by enabling multiple workloads to share a single GPU rather than assigning one workload per GPU. The company is a small San Francisco-based team publicly led by Carl Peterson and Brian Model. With the newly raised capital, Thunder plans to partner with enterprises and cloud providers to scale virtualization across larger GPU fleets. The announcement did not disclose revenue, valuation, or additional operating metrics.
- Earthmover
Participated · Seed · Sep 2025
Earthmover has built a data infrastructure platform designed to handle massive, complex geospatial and weather data sets—tens to hundreds of terabytes per customer—using an array-oriented data structure that runs across Google Cloud, AWS, Microsoft Azure and on-premise servers. Originally focused on longer-term climate data, the company pivoted to higher-frequency weather and hazard applications to meet customer urgency and unlock recurring revenue. Its stack leverages open-source projects such as Xarray, Pangeo and Icechunk, giving enterprise users confidence that their data remains portable even if the startup changes course. Earthmover layers visual dashboards and analytical tools on top of this storage foundation so non-technical teams, like trading desks or insurance analysts, can quickly extract insights without running code. The platform has attracted more than 10 paying customers, including wildfire-risk assessor Kettle and energy giant RWE, who use it for applications ranging from wildfire modeling to renewable-power forecasting. Co-founders Ryan Abernathey (CEO) and Joe Hamman (CTO) both maintain deep ties to the open-source community and continue to extend the product with new tooling funded by the company’s recent seed raise. While revenue figures were not disclosed, the fresh capital supports expansion of feature sets aimed at broadening adoption across weather-sensitive industries.
- Myriad AI
Participated · Seed · Sep 2025
Myriad AI, headquartered in both San Francisco and Prague, offers an enterprise software platform that continuously monitors global regulatory changes and translates them into real-time, actionable tasks for clients. Its core features include horizon scanning for upcoming rules, a compliance navigator that guides companies through obligations, automated document review, and real-time dashboards for oversight. The solution targets heavily regulated sectors such as financial services, insurance, and healthcare. Founded by Ralf Schonherr and Jan Špidlen, the startup positions itself as a comprehensive replacement for manual, resource-intensive compliance processes. With fresh seed financing, the company plans to expand its engineering teams across the EU and the US, accelerate global go-to-market initiatives, and further advance its AI capabilities. To date, Myriad AI has raised $7.8 million, providing the financial runway to scale its product and customer base.
- Commutator Studios
Led · Equity · Jul 2025
Commutator Studios builds a hardware-agnostic Quantum Error Management Platform that combines AI with proprietary algorithms to manage, mitigate, and compensate quantum errors for quantum software. The company says its technology delivers results up to 20 times faster with significantly improved accuracy, enabling shorter computation times and access to larger problems. Its tooling is developer-focused and designed to work across quantum computing platforms, positioning the product as a core component of quantum software infrastructure. The founders, Dr. César A. Rodríguez Rosario (CEO) and Dr. Jan M. Knaup (CTO), met while researching at Harvard and lead the technical vision. Growth plans emphasize converting proof-of-concept partnerships into long-term collaborations with quantum providers and customers in high-growth industries such as chemicals, pharmaceuticals, finance, logistics, and supply chains. Commutator is also a member of the IBM Quantum Network and recently closed a €1.5 million funding round to advance its roadmap.
Team
Tom Preston-Werner
Cofounder
LinkedIn