Quiet Capital
Quiet Capital invests from pre-seed to Series A in software and AI companies.
Investing activity
Quiet Capital appears in 4 AI deals tracked by the AI Lounge deals desk, rounds totalling $65M, and led 1 of them. The rounds are mostly Seed, Series A and Pre-seed, with a median round size of $20M and the largest at $34M. The most recent are Mach9 (Series A, $34M, Oct 2026), Homa (Pre-seed, $5M, Oct 2026) and Intropy (Seed, $11M, Jul 2026).
Quiet Capital most often invests alongside First Round Capital, Bessemer Venture Partners, Prudence and Restive, and the companies it backs on AI Lounge are mostly in AI and AI construction software.
Deals
Frequently asked questions about Quiet Capital
What AI companies has Quiet Capital invested in?
Quiet Capital's AI investments include Mach9, Homa, Intropy and Petual. The 4 rounds on AI Lounge are listed on this page with amounts, dates and co-investors.
Where is Quiet Capital based?
Quiet Capital is based in San Francisco, California, United States.
What stage does Quiet Capital invest at?
In the rounds tracked on AI Lounge, Quiet Capital has invested at Seed, Series A and Pre-seed, with a median round of $20M. Quiet Capital led 1 of those rounds.
Who does Quiet Capital co-invest with?
Quiet Capital's most frequent co-investors on AI Lounge are First Round Capital (2 deals), Bessemer Venture Partners (1 deal), Prudence (1 deal), Restive (1 deal) and Cambrian Ventures (1 deal).
How can founders reach Quiet Capital?
Founders on AI Lounge can see Quiet Capital's contact details in AI Investor Contacts (paid plans), check for a warm introduction through members who worked with the firm under Warm Paths, and add Quiet Capital to their Investor Pipeline to track the conversation.