Investment Firms in Los Altos, California, United States
Situated in the heart of Silicon Valley, it is a prominent residential enclave for leading venture capitalists and technology entrepreneurs, fostering a highly influential and networked investment community. Its proximity to Stanford University and major tech corporations provides a steady pipeline of talent and early-stage innovation, particularly in artificial intelligence and deep technology. The ecosystem is characterized by a concentration of specialized, high-conviction firms that often engage at the seed and series-A stages.
Los Altos, California, United States's investment landscape is shaped by AI, with 83% of its 6 investment firms focused on this sector. The most active by portfolio size are Horizon Ventures, Mango Capital, and Catapult Ventures.
AI dominates the investment landscape in Los Altos, with 83% of investment firms focused on this sector.
Los Altos is a particularly strong hub for early-stage investing, with over 100% of investment firms active at the Seed or Pre-Seed stage.
Last updated: 13 March 2026
Investment Firms
6
Total Investments
166
Top Sector
AI
Top Stage
Series A
Top Investment Sectors in Los Altos
The most popular sector focus among Los Altos investment firms is AI, with 5 investment firms (83%) investing in the space. This is followed by Climate & Energy (4), Data & Analytics (3), Robotics & Automation (3), Fintech (2).
Investment Stages in Los Altos
Los Altos investment firms are most active at the Series A stage (6 investment firms). This is followed by Seed (6), Series B (5), Series C (1).
Horizon Ventures
Los Altos, California, United States
99 investments
Series A, Seed
Fintech, Biotech & Life Sciences, AI …
Mango Capital
Los Altos, California, United States
27 investments
Series A, Seed
Data & Analytics, AI, Cybersecurity …
Catapult Ventures
Los Altos, California, United States
14 investments
Series A, Series B
Hardware & Semiconductors, Biotech & Life Sciences, Climate & Energy …
Rocketship VC
Los Altos, California, United States
14 investments
Series B, Series A
Fintech, Defense & Space, Logistics & Supply Chain …
TSVC
Los Altos, California, United States
7 investments
Seed, Series A
Healthcare, Manufacturing, Data & Analytics …
MFV Partners
Los Altos, California, United States
5 investments
Series A, Seed
Robotics & Automation, Climate & Energy, Mobility & Transportation …