Carlyle
Global private-equity firm.
Investing activity
Carlyle appears in 2 AI deals tracked by the AI Lounge deals desk, rounds totalling $1.8B, and led 2 of them. The rounds are mostly Series C and Growth, with a median round size of $1B. The most recent are Castelion (Series C, $800M, Aug 2026) and Nxtra (Private equity, $1B, Mar 2026).
Carlyle most often invests alongside JPMorgan Chase, Andreessen Horowitz and Alpha Wave Global, and the companies it backs on AI Lounge are mostly in Defense / hypersonics (AI-enabled) and AI.
Deals
Frequently asked questions about Carlyle
What AI companies has Carlyle invested in?
Carlyle's AI investments include Castelion and Nxtra. The 2 rounds on AI Lounge are listed on this page with amounts, dates and co-investors.
Where is Carlyle based?
Carlyle is based in Washington, US.
What stage does Carlyle invest at?
In the rounds tracked on AI Lounge, Carlyle has invested at Series C and Growth, with a median round of $1B. Carlyle led 2 of those rounds.
Who does Carlyle co-invest with?
Carlyle's most frequent co-investors on AI Lounge are JPMorgan Chase (1 deal), Andreessen Horowitz (1 deal) and Alpha Wave Global (1 deal).
How can founders reach Carlyle?
Founders on AI Lounge can see Carlyle'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 Carlyle to their Investor Pipeline to track the conversation.