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Air Street Capital is a venture capital firm founded by Nathan Benaich in 2019, headquartered in London, UK. The firm focuses on investing in AI-first companies, emphasizing innovations where artificial intelligence is central to product development. Air Street Capital operates globally, with a strong emphasis on Europe and North America. The firm has established itself as one of Europe's most prominent AI-focused venture funds, particularly recognized for its unique position as a solo GP fund.
As of 2023, Air Street Capital manages assets totaling $121 million across its funds. The firm has made significant strides in the venture capital space, particularly with its second fund, which raised $121 million, and is preparing for its third fund, projected to reach $232 million by 2026. This upcoming fund is expected to be the largest solo GP VC fund ever raised in Europe, showcasing the firm’s growth and increasing influence in the venture capital landscape.
Air Street Capital has a notable LP base, including prominent figures such as Daniel Ek, the founder of Spotify, and a scientist from Google DeepMind. The firm has achieved several milestones, including backing successful companies like Graphcore and Adept, which have made significant exits in the AI sector.
Air Street Capital primarily invests in early-stage AI-first companies, focusing on pre-seed and seed stages while selectively engaging in growth-stage investments. The firm targets sectors such as AI infrastructure, autonomous systems, TechBio, and AI-native life sciences, ensuring that AI is integral to the product's existence. The firm’s investment strategy emphasizes companies where AI is not merely an enhancement but a fundamental component of the product's functionality.
The firm looks for technically intensive domains, including AI software, developer tools, and defense technology. Air Street Capital seeks to partner with founders who are deeply knowledgeable in their fields and are leveraging AI to create innovative solutions. The firm’s investment checks typically range from $500,000 to $15 million for early-stage investments, with the potential for growth-stage investments reaching up to $25 million.
Air Street Capital has built a diverse portfolio of notable companies that exemplify its focus on AI-first innovations. Key portfolio companies include:
In addition to these companies, Air Street Capital has invested in various unannounced projects across multiple sectors, further diversifying its portfolio and reinforcing its commitment to supporting AI-driven innovations.
Nathan Benaich: Founder and Solo General Partner. Nathan has a background as a computational cancer researcher and is a co-author of the annual State of AI Report, which has gained recognition in the AI community. His expertise in AI and venture capital positions him as a leading figure in the industry.
Paula Pastor Castaño: Advisor, Legal & Operations. Paula brings legal expertise and operational support to the firm, ensuring compliance and efficient management of investments.
Othmane Sebbouh: Quant Researcher. Othmane specializes in quantitative analysis, contributing to the firm's research capabilities and investment decision-making processes.
Nitarshan Rajkumar: International Policy. Nitarshan focuses on policy implications related to AI technologies, helping the firm navigate regulatory landscapes.
Corina Gurau: Member of Technical Staff. Corina provides technical insights and support, enhancing the firm's understanding of AI technologies and their applications.
Alex Chalmers: Independent Research and Writing. Alex contributes to the firm's research efforts, providing valuable insights into market trends and emerging technologies.
To pitch to Air Street Capital, founders should visit their website at airstreet.com for detailed instructions on the application process. The firm prefers direct outreach through their contact page. In the pitch deck, it is essential to include a clear explanation of how AI is integral to the product, the market opportunity, and the team's qualifications. Founders can expect a response within a few weeks, depending on the volume of inquiries.
In March 2026, Air Street Capital announced the formation of its third fund, projected to raise $232 million, making it the largest solo GP VC fund ever raised in Europe. This milestone reflects the firm’s growth and increasing influence in the venture capital space.
In 2023, Air Street Capital successfully closed its second fund at $121 million, attracting notable LPs including Daniel Ek, founder of Spotify, and a scientist from Google DeepMind. This fund has enabled the firm to expand its portfolio and support more AI-first companies.
Recent investments include significant stakes in companies like ElevenLabs and poolside, reinforcing Air Street Capital's commitment to backing innovative AI-driven startups.
What are Air Street Capital's investment criteria?
Air Street Capital invests in AI-first companies where artificial intelligence is essential for product functionality. The firm primarily targets early-stage investments at the pre-seed and seed stages, with selective growth-stage investments in category-leading companies.
How can founders apply or pitch to Air Street Capital?
Founders interested in pitching to Air Street Capital can visit their website at airstreet.com for more information on the application process. The firm encourages direct outreach through their contact page.
What makes Air Street Capital different from other venture firms?
Air Street Capital distinguishes itself by focusing exclusively on AI-first companies, emphasizing sectors where AI is integral to the product's existence. The firm is led by Nathan Benaich, a recognized expert in AI, who co-authors the annual State of AI Report, providing the firm with unique insights and access to emerging technologies.
What is the geographic scope of Air Street Capital's investments?
The firm invests globally, with a particular emphasis on Europe and North America. This geographic focus allows Air Street Capital to tap into diverse markets and innovative startups across different regions.
What is the typical check size for investments?
Air Street Capital typically invests between $500,000 and $15 million in early-stage companies, with the potential for growth-stage investments reaching up to $25 million. This range allows the firm to support companies at various stages of their development.
What kind of post-investment involvement does Air Street Capital have?
Air Street Capital adds value to its portfolio companies through deep technical expertise in AI, strategic guidance, and access to a robust research network. The firm actively engages with its companies to help them navigate challenges and capitalize on opportunities in the AI sector.
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