Trousdale Ventures
9125 W Sunset Boulevard, West Hollywood, California, 90069, United States
Overview
Trousdale Ventures is a privately held investment firm led by founder and CEO Phillip Sarofim. Its portfolio of groundbreaking companies improves quality of life by fueling advances in space and mobility, climate tech and technology-driven health and wellness. Trousdale Ventures seeks to overcome barriers in the fields of health, productivity and sustainability by democratizing wellness and accelerating innovation.
- Total investments
- 30
- Lead investments
- 10
- Investments · 12mo
- 4
- Active investors
- 9
Sector focus
- CleanTech
- Consumer Goods
- Electric Vehicle
- GreenTech
- Information Technology
- Lifestyle
- Satellite Communication
- Transportation
Investment portfolio
- Databento
Participated · Series B · Jul 2026
Databento provides a unified API delivering real-time and historical market data across futures, options, and equities, owning the market data stack end-to-end and colocating servers at exchanges to capture data directly. The company emphasizes performance, reliability, and a developer-friendly experience, and reports more than doubled active API users in recent months. Financially, Databento reached profitability with 24 employees, grew revenue 6.65x year over year, and has maintained over 97% enterprise logo retention since inception. It plans to expand its infrastructure footprint to more than 20 data centers worldwide and has secured over 100 petabytes of additional storage capacity. Databento aims to broaden coverage across asset classes and geographies as part of its growth strategy.
- CesiumAstro
Led · Series C · Feb 2026
Founded in 2017, CesiumAstro designs and manufactures full-stack, software-defined communications payloads, processors, and complete small satellites. Its core Element platform combines modular, in-house-built hardware with AI that optimizes signals in real time, allowing operators to reconfigure missions after launch. The technology has been flight-proven on eight SpaceX launches and targets dense low-Earth-orbit constellations as well as defense applications. By integrating payloads, satellites, and processors under one roof, the company aims to shorten upgrade cycles and reduce costs compared with legacy providers. With fresh capital, CesiumAstro will scale U.S. manufacturing, open a 270,000-square-foot headquarters near Austin, and increase hiring in the United States, United Kingdom, Germany, and Japan. The firm also plans to accelerate launches of its Element satellites, advance its AI capabilities, and pursue additional defense contracts through at least 2027.
- AheadComputing
Participated · Seed · Jan 2026
Founded in 2024 and based in Portland, OR, AheadComputing is developing a breakthrough CPU microarchitecture that marries RISC-V extensibility with proprietary design to maximize per-core performance for AI inference, agentic AI, and other data-center tasks. The 120-person team, which collectively holds hundreds of compute patents and has shipped more than 70 products in prior roles, is currently building its first high-performance general-purpose CPU. The company positions its architecture as a critical complement to GPUs, arguing that CPU performance is still essential as 70% of data-center workloads are expected to be AI-related by 2030. Proceeds from recent funding are earmarked for R&D, software innovation, and test-chip development, as well as continued team expansion. Key technical collaborations include Alchip, Cadence, Skyechip, and Tenstorrent. To date, the company has raised $53 million, giving it runway to bring its initial product to market and further integrate RISC-V into mainstream AI infrastructure.
- Vatn Systems
Participated · Series A · Dec 2025
Founded in 2023 in Rhode Island by maritime practitioners and defense engineers, Vatn Systems is building scalable fleets of autonomous underwater vehicles for the U.S. military, allied governments, and civilian customers. Its flagship platforms, the Skelmir S6 and Skelmir S12, combine a plug-and-play payload architecture with INStinct, the company’s proprietary inertial navigation system that provides GPS-denied guidance at a fraction of traditional costs. The vehicles support distributed sensing, ISR, mine countermeasures, electronic warfare, and other emerging undersea missions, and can be re-configured for offshore energy, port security, and environmental monitoring in days rather than months. Throughout 2025 the company delivered AUVs to U.S. government customers, ran successful open-water demonstrations, and ramped production capacity to meet growing demand. Vatn positions itself as a future “underwater defense prime” by offering attritable, mass-deployable systems that align with shifting naval doctrines. Commercially, the same low-cost autonomy unlocks persistent coastal infrastructure monitoring and scientific research opportunities. The recent capital infusion is intended to accelerate production scaling and broaden mission profiles for both defense and civilian markets.
- Impulse Space
Participated · Series C · Jun 2025
Impulse Space, founded by SpaceX engine guru Tom Mueller, develops highly maneuverable spacecraft and propulsion systems for in-space mobility. Its product portfolio includes Mira, a maneuverable platform that has flown at least three missions, and Helios, a vehicle designed to move satellites rapidly to higher orbits. The company is targeting U.S. Space Force customers and is preparing another Mira launch expected before the end of the year after a prior flight encountered a navigation-related propellant issue. Impulse recently opened an office in Colorado as it expands its engineering team and plans to hire up to 200 new employees with proceeds from its Series D. The company’s software teams use AI coding tools, though leadership has expressed skepticism about applying current deep learning models to hardware design.