Ridge Ventures
Ridge Ventures is an early-stage venture capital firm based in San Francisco, founded in 2007 and rebranded from IDG Ventures USA in 2017. The firm specializes in investing in experienced founders who are redefining software interactions. With a mission to support companies that deliver advanced technologies and innovative user experiences, Ridge Ventures operates with a fast and flexible approach to help create market leaders. The firm has raised a total of $540 million across five funds, with its largest fund, Ridge V, closing at $180 million in April 2023. Ridge Ventures focuses on late Se
Investing activity
Ridge Ventures appears in 3 AI deals tracked by the Lounge deals desk, rounds totalling $15M. The rounds are mostly Seed, with a median round size of $6M and the largest at $15M. The most recent are Clario (Seed, $6M, Jun 2026), Besty AI (Seed, $3.8M, Jun 2026) and ReFiBuy (Seed, $15.3M, May 2026).
Ridge Ventures most often invests alongside Preface Ventures, Golden Sparrow Ventures, Michael Callahan and HighSage Ventures, and the companies it backs on Lounge are mostly in AI.
Deals
Frequently asked questions about Ridge Ventures
What AI companies has Ridge Ventures invested in?
Ridge Ventures's AI investments include Clario, Besty AI and ReFiBuy. The 3 rounds on Lounge are listed on this page with amounts, dates and co-investors.
Where is Ridge Ventures based?
Ridge Ventures is based in San Francisco, California, United States.
What stage does Ridge Ventures invest at?
In the rounds tracked on Lounge, Ridge Ventures has invested at Seed, with a median round of $6M.
Who does Ridge Ventures co-invest with?
Ridge Ventures's most frequent co-investors on Lounge are Preface Ventures (1 deal), Golden Sparrow Ventures (1 deal), Michael Callahan (1 deal), HighSage Ventures (1 deal) and Baris Aksoy (1 deal).
How can founders reach Ridge Ventures?
Founders on Lounge can see Ridge 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 Ridge Ventures to their Investor Pipeline to track the conversation.