M12
About M12
M12 - Microsoft’s venture fund, invests in early-stage enterprise software companies with a focus on AI, cloud infrastructure, cybersecurity, developer tools, vertical SaaS, and Web3/Gaming. Since 2016, M12 has invested in over 100 companies, helping startups accelerate growth with unparalleled access to Microsoft. Per Crunchbase, M12 - Microsoft's Venture Fund has made 354 investments, 104 as lead investor across 196 portfolio companies, with 55 exits including 5 IPOs.
M12 is headquartered in Seattle, Washington, and operates as the corporate venture capital arm of Microsoft. Public details on the founding date, the founding partners and the current investing team were not confirmed in this research, so founders should check m12.vc for current partner names before reaching out.
Lounge's deals desk tracks recent AI rounds that founders may find relevant to M12's AI focus. These include Gimlet Labs (Series B, $300M, 2026-09), HiddenLayer (Series B, $100M, 2026-09), Nous Research (Series B, $90M, 2026-10), Stuut (Series B, $53M, 2026-10), Mecka AI (Series B, $60M, 2026-10), Reach Security (Series B, $50M, 2026-10) and Entire (Seed, $60M, 2026-07). Lounge lists these as AI rounds on its desk; M12's participation in each has not been confirmed in this research.
Lounge tags M12's focus stage as Seed. M12 has not publicly disclosed check sizes in the sources reviewed for this page.
Investing activity
M12 appears in 7 AI deals tracked by the AI Lounge deals desk, rounds totalling $713M. The rounds are mostly Series B and Seed, with a median round size of $60M and the largest at $300M. The most recent are Reach Security (Series B, $50M, Oct 2026), Mecka AI (Series B, $60M, Oct 2026) and Nous Research (Series B, $90M, Oct 2026).
M12 most often invests alongside Samsung Electronics, Nvidia, Menlo Ventures and Andreessen Horowitz, and the companies it backs on AI Lounge are mostly in AI security operations, Robotics training data and Open-source AI agents.
Deals
Frequently asked questions about M12
Where is M12 based?
M12 is headquartered in Seattle, US. Its website is m12.vc.
Does M12 invest in AI startups?
AI is one of M12's stated focus areas. Lounge's deals desk lists several recent AI rounds at the Series B and Seed stages, though M12's role in each round is not confirmed here.
What stage does M12 invest at?
Lounge tags M12's focus stage as Seed. Public check sizes were not confirmed in this research.
Where can I see M12's portfolio?
Crunchbase lists M12 - Microsoft's Venture Fund with its investment and portfolio counts. The firm's own site at m12.vc is the best place to check current companies.
How should a founder approach M12 about AI funding?
Start with the firm's website at m12.vc and its LinkedIn page to confirm the current team and submission process. Check the stage tag and recent AI rounds on Lounge before pitching.
What AI companies has M12 invested in?
M12's AI investments include Reach Security, Mecka AI, Nous Research, Stuut, Gimlet Labs, HiddenLayer and Entire. The 7 rounds on AI Lounge are listed on this page with amounts, dates and co-investors.
Who does M12 co-invest with?
M12's most frequent co-investors on AI Lounge are Samsung Electronics (2 deals), Nvidia (2 deals), Menlo Ventures (2 deals), Andreessen Horowitz (2 deals) and Top Tier Capital Partners (1 deal).
How can founders reach M12?
Founders on AI Lounge can see M12'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 M12 to their Investor Pipeline to track the conversation.