Sumeet Singh

Worldbuild | Previously at a16z

📍 United States🔄 Updated September 2026💼 12 investments📅 9 years investing🗓 Last invested Mar 2025
VC🌍 United States
12
Total investments
4
Early stage
2
Mid stage
0
Late stage
9y
Years active

Portfolio

12 investments · sorted by recency
All investments
Early stage
Mid stage
Late stage
Investor
Mar 2025
Cowboy Space Corporation is building a power grid in outer space for artificial intelligence. Using an integrated system of satellites and rockets, we will send high-performance compute and optical data transmission to Low Earth Orbit. Our constellation of satellites, Stampede, will harness abundant solar power to run on-orbit GPU data centers. With each launch, Stampede grows the power and compute capacity for humanity. Earths energy grid cant run at the pace of AI. We can. AI is driving the largest infrastructure buildout in recent history, and the power grid on planet Earth cant keep pace. In major US markets, average grid connection lead times for new data centers can run 5-7 years or more. Meanwhile, AI demand is flat-out outgrowing Earths pastures. Full-Stack Architecture: Traditional architecture treats the rocket as a workhorse and the satellite as freight. In our system, the rockets upper stage is the satellite itself. Its a 1-megawatt data center with active thermal management and integrated compute, designed as one unified vehicle from the ground up. We trim the fat on redundant structure and avionics, dedicating every possible kilogram of compute to Low Earth Orbit. By owning our manufacturing and dedicated launch sites, we vertically integrate core technologies that enable deploying compute at scale. We’ve raised a $275M Series B at a $2B valuation led by Index Ventures, with participation from new investors IVP, Blossom Capital, and SAIC, alongside existing investors Breakthrough Energy Ventures, Construct Capital, Andreessen Horowitz, NEA, Interlagos and Baiju Bhatt.
Co-Lead Pre-Seed Investor
2025
a company that builds good company
Seed Investor
2025
Compute is a commodity. We think people should buy it like one. Startups shouldn’t be forced to buy a year’s worth of compute time in order to get market rate and compute providers shouldn’t go bankrupt because they can’t fully book their clusters. At SF Compute , our goal is to solve this issue the same way this was solved for every other commodity — by building a venue where compute contracts are traded in real-time and by bringing a new kind of participant into the supply chain, traders. Buyers will be able to get a good price for any order, whether it’s 32 H100s for a month or 8,000 H100s for an hour, and sellers will instantly book out their clusters because traders will speculatively buy them, for a spread. Every FLOP will flow through us somewhere in the supply chain. What Brent is for oil, we will be for compute.
Lead Pre-Seed Investor
2025
The self-healing layer of the internet
Pre-Seed Investor
2025
Fractal Power is a vertically integrated power company built for the modern grid. We own and operate across the entire stack, combining utility-scale energy storage infrastructure with algorithmic trading and dispatch to deliver power precisely where and when it’s needed most.
Founding Investor
Dec 2024
Like your favorite hand-me-down sweater, we believe physical goods only improve as they accumulate memory and meaning. We build products to impart dramatically increased information density into ordinary everyday objects, flora, and fauna. We believe flowers can be computers.
Founding Investor
May 2024
Helping Stealth Startups to Launch, Hire & Scale. Here Recruiters Usually List Stealth Roles for early stage startups and job seekers can connect and consider those roles.
Founding Investor
Feb 2024
Browserbase is the all-in-one platform developers need to host, manage, and monitor headless browsers in the cloud.
Founding Investor
2024
Applied AI
Series D Investor
2019
People deserve more from their money. More visibility, more control, and more freedom. Since 2015, Revolut has been on a mission to deliver just that. Our powerhouse of products help our 70+ million customers get more from their money every day. As we continue our lightning-fast growth,‌ 2 things are essential to our success: our people and our culture. In recognition of our outstanding employee experience, weve been certified as a Great Place to Work™. So far, we have 10,000+ people working around the world, from our offices and remotely, to help us achieve our mission. And were looking for more brilliant people. People who love building great products, redefining success, and turning the complexity of a chaotic world into the simplicity of a beautiful solution.
Investor
2017
Nyca is a fintech venture capital firm focused on connecting innovative companies to the global financial system. With just under $1 billion under management and investments in over 100 portfolio companies, Nyca is one of the premier fintech venture capital firms in the world. Investors include leading global financial institutions and technology companies as well as expert individuals through its unique Limited Partner Advisor model, which brings together over 100 of the most respected people in technology, financial services and academia as investors and advisors to our portfolio companies.
Experience · 16 entries
All (16)
Investments (12)
Founder (3)
2025
Investor
Mar 2025
Cowboy Space Corporation is building a power grid in outer space for artificial intelligence. Using an integrated system of satellites and rockets, we will send high-performance compute and optical data transmission to Low Earth Orbit. Our constellation of satellites, Stampede, will harness abundant solar power to run on-orbit GPU data centers. With each launch, Stampede grows the power and compute capacity for humanity. Earths energy grid cant run at the pace of AI. We can. AI is driving the largest infrastructure buildout in recent history, and the power grid on planet Earth cant keep pace. In major US markets, average grid connection lead times for new data centers can run 5-7 years or more. Meanwhile, AI demand is flat-out outgrowing Earths pastures. Full-Stack Architecture: Traditional architecture treats the rocket as a workhorse and the satellite as freight. In our system, the rockets upper stage is the satellite itself. Its a 1-megawatt data center with active thermal management and integrated compute, designed as one unified vehicle from the ground up. We trim the fat on redundant structure and avionics, dedicating every possible kilogram of compute to Low Earth Orbit. By owning our manufacturing and dedicated launch sites, we vertically integrate core technologies that enable deploying compute at scale. We’ve raised a $275M Series B at a $2B valuation led by Index Ventures, with participation from new investors IVP, Blossom Capital, and SAIC, alongside existing investors Breakthrough Energy Ventures, Construct Capital, Andreessen Horowitz, NEA, Interlagos and Baiju Bhatt.
Co-Lead Pre-Seed Investor
2025
a company that builds good company
Seed Investor
2025
Compute is a commodity. We think people should buy it like one. Startups shouldn’t be forced to buy a year’s worth of compute time in order to get market rate and compute providers shouldn’t go bankrupt because they can’t fully book their clusters. At SF Compute , our goal is to solve this issue the same way this was solved for every other commodity — by building a venue where compute contracts are traded in real-time and by bringing a new kind of participant into the supply chain, traders. Buyers will be able to get a good price for any order, whether it’s 32 H100s for a month or 8,000 H100s for an hour, and sellers will instantly book out their clusters because traders will speculatively buy them, for a spread. Every FLOP will flow through us somewhere in the supply chain. What Brent is for oil, we will be for compute.
Lead Pre-Seed Investor
2025
The self-healing layer of the internet
Show all 16 entries ↓
Investment activity
2017–2025 · 12 investments
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