SOSV is a global venture capital firm that operates a network of accelerator programs, including HAX and IndieBio. The firm focuses on early-stage investments in deep technology, with a particular emphasis on artificial intelligence, biotechnology, and hardware innovation. SOSV provides capital, mentorship, and operational support to startups across its various programs, which are designed to help companies move from concept to commercialization.
The firm was founded in 1995 by Sean O'Sullivan, who also created the SOSV brand. Headquartered in Princeton, New Jersey, SOSV has expanded its operations globally, with accelerator programs and offices in major innovation hubs such as San Francisco, New York, Shenzhen, and Cork, Ireland. Over the years, SOSV has invested in more than 1,000 startups, making it one of the most active early-stage investors in the world.
HAX Accelerator
HAX is SOSV's flagship hardware accelerator, launched in 2012. It focuses on startups developing hardware products, including robotics, sensors, and connected devices. HAX operates programs in Shenzhen and San Francisco, providing startups with access to manufacturing expertise, supply chain networks, and engineering talent. The program has supported companies such as Figure AI, which develops humanoid robots, and Fermata, which focuses on agricultural technology. HAX typically invests between $100,000 and $500,000 in each startup, with a focus on rapid prototyping and market validation.
IndieBio and Life Sciences
IndieBio, launched in 2014, is SOSV's life sciences accelerator, with programs in San Francisco and New York. It supports startups in biotechnology, synthetic biology, and medical devices. IndieBio provides funding, lab space, and scientific mentorship to help companies develop and validate their technologies. Notable portfolio companies include Commure, a healthcare AI platform, and Intuitive Surgical, which is known for its robotic surgical systems. The program emphasizes the use of artificial intelligence and machine learning to accelerate drug discovery and diagnostics.
AI and Deep Tech Focus
SOSV has increasingly focused on generative AI and deep tech startups. The firm's investments span areas such as large language models, deep learning, and neural networks. SOSV supports companies that apply AI to industries like healthcare, manufacturing, and climate technology. For example, Omniscient uses AI for brain mapping, while Cortica develops autonomous AI systems. The firm also invests in infrastructure and tools that enable AI development, including AWS Trainium-compatible hardware and cloud services from providers like Amazon Web Services and Google Cloud.
Investment Strategy and Portfolio
SOSV operates a multi-stage investment strategy, starting with seed funding through its accelerators and following on with later-stage rounds. The firm manages over $1 billion in assets and has a portfolio that includes more than 1,000 companies. SOSV's approach is hands-on, with a team of engineers, scientists, and business experts who work closely with founders. The firm also runs programs like MOX (Mobile Only), which focuses on mobile-first startups in emerging markets, and Food+Tech, which targets sustainable food systems. Notable exits include Cruise, the autonomous vehicle company, and Waymo, which is a leader in self-driving technology.
Global Presence and Community
SOSV has built a global community of founders, mentors, and corporate partners. Its offices in Shenzhen and San Francisco serve as hubs for hardware and software innovation, while its Cork office supports European startups. The firm hosts regular events, demo days, and workshops to foster collaboration and knowledge sharing. SOSV also partners with academic institutions like MIT CSAIL and Stanford AI Lab to stay at the forefront of research and development. Through its programs, SOSV aims to address global challenges by supporting technologies that improve health, sustainability, and productivity.
Future Outlook
As of 2025, SOSV continues to expand its focus on AI and deep tech, with plans to launch new accelerator programs and increase its investment in early-stage companies. The firm is particularly interested in applications of AI in biology, robotics, and climate science. SOSV's model of combining capital with operational support has proven effective in nurturing high-risk, high-reward ventures, and it remains a key player in the global startup ecosystem.