Costanoa Ventures
About Costanoa Ventures
Costanoa Ventures invests at seed and Series A in enterprise software, data and AI.
The Lounge deals desk records two AI rounds that Costanoa Ventures led: Manifold's $8M seed round in March 2026 and Midship's $4.15M seed round in January 2026. Founders can use these recent rounds as a reference point for how the firm writes checks into AI companies at seed.
Lounge focus tags for the firm are Pre-seed, Seed and Series A. No check size range is listed on this page.
- Manifold: $8M seed round led by Costanoa Ventures, March 2026
- Midship: $4.15M seed round led by Costanoa Ventures, January 2026
Investing activity
Costanoa Ventures appears in 2 AI deals tracked by the AI Lounge deals desk, and led 2 of them. The rounds are mostly Seed, with a median round size of $8M. The most recent are Manifold (Seed, $8M, Mar 2026) and Midship (Seed, $4.15M, Jan 2026).
Costanoa Ventures most often invests alongside Modern Technical Fund, Cherry Ventures, Rain Capital and Seguin Ventures, and the companies it backs on AI Lounge are mostly in AI.
Deals
Frequently asked questions about Costanoa Ventures
Does Costanoa Ventures invest in AI startups?
Yes. The Lounge deals desk lists two AI seed rounds that Costanoa Ventures led, Manifold ($8M, March 2026) and Midship ($4.15M, January 2026).
What stages does Costanoa Ventures invest in?
Lounge lists Pre-seed, Seed and Series A as the firm's focus stages. No check size range is listed here.
Where is Costanoa Ventures headquartered?
The firm is headquartered in Palo Alto, California, United States.
Where can I find Costanoa Ventures on LinkedIn?
The firm's company page is at linkedin.com/company/costanoa-ventures. The firm's website is https://costanoa.vc.
Which AI rounds has Costanoa Ventures led recently?
The most recent AI rounds on the Lounge deals desk are Manifold's $8M seed round (March 2026) and Midship's $4.15M seed round (January 2026), both led by the firm.
What AI companies has Costanoa Ventures invested in?
Costanoa Ventures's AI investments include Manifold and Midship. The 2 rounds on AI Lounge are listed on this page with amounts, dates and co-investors.
Where is Costanoa Ventures based?
Costanoa Ventures is based in Palo Alto, California, United States.
What stage does Costanoa Ventures invest at?
In the rounds tracked on AI Lounge, Costanoa Ventures has invested at Seed, with a median round of $8M. Costanoa Ventures led 2 of those rounds.
Who does Costanoa Ventures co-invest with?
Costanoa Ventures's most frequent co-investors on AI Lounge are Modern Technical Fund (1 deal), Cherry Ventures (1 deal), Rain Capital (1 deal) and Seguin Ventures (1 deal).
How can founders reach Costanoa Ventures?
Founders on AI Lounge can see Costanoa Ventures'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 Costanoa Ventures to their Investor Pipeline to track the conversation.