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 67% of its 9 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 67% of investment firms focused on this sector.
Los Altos is a particularly strong hub for early-stage investing, with over 78% of investment firms active at the Seed or Pre-Seed stage.
Last updated: 28 April 2026
Investment Firms
9
Total Investments
194
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 6 investment firms (67%) investing in the space. This is followed by Climate & Energy (5), Data & Analytics (4), Healthcare (4), Robotics & Automation (3).
Investment Stages in Los Altos
Los Altos investment firms are most active at the Series A stage (7 investment firms). This is followed by Seed (7), Series B (6), Series C (2), Pre-Seed (1).
Horizon Ventures
Los Altos, California, United States
113 investments
Series A, Seed
Fintech, AI, Food & Agriculture …
Mango Capital
Los Altos, California, United States
28 investments
Seed, Series A
Data & Analytics, AI, Cybersecurity …
Catapult Ventures
Los Altos, California, United States
15 investments
Series A, Series B
Hardware & Semiconductors, AI, Biotech & Life Sciences …
Rocketship VC
Los Altos, California, United States
15 investments
Series B, Series A
Fintech, AI, Defense & Space …
TSVC
Los Altos, California, United States
10 investments
Seed, Series B
Healthcare, AI, Manufacturing …
MFV Partners
Los Altos, California, United States
5 investments
Series A, Seed
Robotics & Automation, Climate & Energy, Mobility & Transportation …
1955 Capital
Los Altos, California, United States
4 investments
Series B, Series C
Climate & Energy, Healthcare, Food & Agriculture
Tsingyuan Ventures
Los Altos, California, United States
2 investments
Hardware & Semiconductors, Healthcare
Combine
Los Altos, California, United States
2 investments
Data & Analytics, Healthcare