
Investments
47Funds
4About Riot Ventures
Riot Ventures focuses on investing in deep technologies, primarily in the sectors of intelligence, sensing and control, communications, mobility, and security. The company provides financial support to a select group of companies, with investments reaching up to $100 million, aiding in the modernization of critical industries. Riot Ventures primarily serves the technology industry, with a particular emphasis on companies that are innovating in the areas of program management software, space defense, AI, quality control for pharmaceutical production, and more. It was founded in 2017 and is based in Venice, California.
Latest Riot Ventures News
Apr 15, 2025
Share This Article With $14M in funding and seasoned roboticists, company is ramping to deliver a full stack autonomous ship for the U.S. Navy BOSTON, April 11, 2025-- Blue Water Autonomy, Inc., the technology company building autonomous ships for the U.S. Navy, emerged from stealth today, and announced $14M in seed funding from Eclipse, Riot, and Impatient Ventures. The company is building a completely unmanned and highly producible ship that can serve many missions on the open ocean. Founded in 2024 by leaders formerly of Amazon Robotics, iRobot, and the U.S. Navy, Blue Water Autonomy has developed a full-stack autonomy suite, commenced salt-water testing, and developed concept ship designs in under a year. With this seed funding, the company will expand its engineering team, accelerate ship testing, and integrate different payloads onto its platform. Democracy's Navies Are Stretched Thin, With Sea Lanes Under Attack And China Tension Rising As geopolitical tensions with Russia and China drive military buildups globally, the U.S. Navy must maintain deterrence in the Pacific while keeping global trade lanes open. In the Red Sea, U.S. warships have seen months of combat. New threats prove their danger every day, from the Black Sea to the Baltic. Meanwhile, in the Pacific, Chinese shipyards are launching ships at a pace that U.S. industry cannot match. By deploying autonomous ships at scale and at lower cost, the Navy can complement its current fleet and restore deterrence. "Sea power has been the bedrock of America's security and prosperity for centuries," said Rylan Hamilton, co-founder and CEO of Blue Water Autonomy. "We believe the entire maritime economy is in need of transformation — it starts with supporting the U.S. Navy which needs dynamic industrial partners to bring top technology to its sailors, including ocean-going, fully autonomous ships." Blue Water Autonomy's team consists of proven founders and Navy veterans, bringing the deep understanding, urgency, and experience necessary to help the U.S. Navy meet the moment it faces by delivering America's warfighters overdue innovation. With a track record of delivering hundreds of products and deploying millions of robots to commercial customers, Blue Water Autonomy knows what it takes to innovate, iterate, and scale. The Navy will soon operate autonomous warships alongside crewed destroyers, submarines, and aircraft carriers - providing new and timely capability to the fleet. Eventually, the core unmanned technology developed for the Navy will pave the way for similarly revolutionary innovation in commercial markets from cargo and offshore energy, to fishing and luxury transportation. "The U.S. military needs more than incremental improvements to meet the moment and maintain its status on the global stage," said Seth Winterroth, partner at Eclipse. "Autonomous ships are critical to enable the Navy to continue securing deterrence given the threat of China and Russia and the importance of shipping lanes in the Pacific. We previously backed Rylan at 6 River Systems and have seen first-hand his ability to scale a full stack technology company from concept to exit. No other company is tackling this problem at the ship level like Blue Water. The team is a rare combination of roboticists and Navy veterans that positions them to be a critical partner to the Navy, the entire Department of Defense, and will have a major impact on the maritime industry." About Blue Water Autonomy Founded in 2024, Blue Water Autonomy is making unmanned ships a reality. Blue Water's autonomous ship design fully-integrates hardware, software, and AI allowing the vessel to operate on the open ocean for months at a time. For more information about Blue Water Autonomy, visit: www.blw.ai About Eclipse With ~$5 billion in assets under management and a team of investors with deep operating expertise in technology, manufacturing, supply chain, logistics, healthcare, and consumer products, Eclipse is a leading U.S. venture capital firm. Its leadership team has the experience necessary to create and scale complex operations. Eclipse partners with exceptional companies that make physical industries more efficient, resilient, and profitable. For more information, visit www.eclipse.vc. About Riot Riot Ventures is a seed and growth stage venture capital firm dedicated to working closely with a small group of iconic companies focused on the modernization of critical industries. The firm partners with founders at the earliest stages and writes checks ranging from $1M to $100M+. For more information, visit www.riot.vc Contact:
Riot Ventures Investments
47 Investments
Riot Ventures has made 47 investments. Their latest investment was in EnduroSat as part of their Series B - II on October 30, 2025.
Riot Ventures Investments Activity

Date | Round | Company | Amount | New? | Co-Investors | Sources |
|---|---|---|---|---|---|---|
10/30/2025 | Series B - II | EnduroSat | $104M | Yes | EIC Fund, Google Ventures, Lux Capital, and Shrug Capital | 2 |
8/26/2025 | Series A | Blue Water Autonomy | $50M | No | Eclipse, Google Ventures, Impatient Ventures, and Undisclosed Investors | 3 |
4/30/2025 | Series C | True Anomaly | No | 3 | ||
4/11/2025 | Series B | |||||
4/11/2025 | Seed VC |
Date | 10/30/2025 | 8/26/2025 | 4/30/2025 | 4/11/2025 | 4/11/2025 |
|---|---|---|---|---|---|
Round | Series B - II | Series A | Series C | Series B | Seed VC |
Company | EnduroSat | Blue Water Autonomy | True Anomaly | ||
Amount | $104M | $50M | |||
New? | Yes | No | No | ||
Co-Investors | EIC Fund, Google Ventures, Lux Capital, and Shrug Capital | Eclipse, Google Ventures, Impatient Ventures, and Undisclosed Investors | |||
Sources | 2 | 3 | 3 |
Riot Ventures Fund History
4 Fund Histories
Riot Ventures has 4 funds, including Riot Ventures Opportunity V-II C1B.
Closing Date | Fund | Fund Type | Status | Amount | Sources |
|---|---|---|---|---|---|
10/15/2020 | Riot Ventures Opportunity V-II C1B | $4.31M | 2 | ||
9/24/2020 | Riot Ventures Fund II | ||||
10/4/2019 | Riot Ventures Opportunity V-II C1 | ||||
12/31/2017 | Riot Ventures Fund I |
Closing Date | 10/15/2020 | 9/24/2020 | 10/4/2019 | 12/31/2017 |
|---|---|---|---|---|
Fund | Riot Ventures Opportunity V-II C1B | Riot Ventures Fund II | Riot Ventures Opportunity V-II C1 | Riot Ventures Fund I |
Fund Type | ||||
Status | ||||
Amount | $4.31M | |||
Sources | 2 |
Riot Ventures Team
2 Team Members
Riot Ventures has 2 team members, including current Founder, General Partner, William Coffield.
Name | Work History | Title | Status |
|---|---|---|---|
William Coffield | Founder, General Partner | Current | |
Name | William Coffield | |
|---|---|---|
Work History | ||
Title | Founder, General Partner | |
Status | Current |
Compare Riot Ventures to Competitors

Team8 operates as a venture creation and venture capital fund focused on enterprise technology, cybersecurity, artificial intelligence, fintech, and digital health. The company partners with entrepreneurs to co-found companies, providing capital and access to a community of C-level executives and resources. Team8 primarily serves the startup ecosystem, with an emphasis on early-stage investments and company-building in various technology sectors. It was founded in 2014 and is based in Tel Aviv, Israel.
Greylock Partners focuses on early-stage investments in the technology sector. The company provides funding to artificial intelligence (AI)-focused companies at the pre-seed, seed, and Series A stages. Greylock Partners offers a company-building program to support pre-idea and pre-seed founders in developing their startups. It was founded in 1965 and is based in Menlo Park, California.

Lightspeed Venture Partners invests in the enterprise, consumer, health, and financial technology sectors. The firm provides funding and support to entrepreneurs at various stages of their development. Lightspeed Venture Partners serves the startup ecosystem by offering financial resources and industry knowledge to companies within its targeted sectors. It was founded in 2000 and is based in Menlo Park, California.

Sierra Ventures is a venture capital firm. It invests in artificial intelligence, machine learning, big data, cloud, financial technology, education technology, health technology, commerce, Internet of Things sector. Sierra Ventures was founded in 1982 and is based in San Mateo, California.
GGV Capital is a venture capital fund. It deals with software and technology, media and entertainment, and telecommunications (TMT) sector companies. It was founded in 2000 and is based in Menlo Park, California.

Sequoia Capital operates as a venture capital firm focused on supporting startups from inception to initial public offering (IPO) within sectors. It provides investment funding and strategic support to help companies grow and succeed. Sequoia Capital primarily serves technology-driven sectors and businesses aiming to become market leaders. It was founded in 1972 and is based in Menlo Park, California.
Loading...