Adam Cohen
About Adam Cohen
Adam Cohen is named as an angel investor in the seed round announcement of Mason AI, an AI startup that reviews architectural blueprints. The announcement, published March 30, 2026, lists him as VP of Eng at Instacart.
We did not find a personal site, a verified LinkedIn or X profile, or press coverage that we could tie to this Adam Cohen. Several other people named Adam Cohen appear in investor databases. We have not attributed their companies or investments to him. Founders should confirm details with him directly.
Mason AI is the one AI round we can confirm. Mason announced a $4.3M seed round on March 30, 2026, led by Urban Innovation Fund. Cohen was one of six named angel investors in the round. The others include Zack Rosen, Brian McClendon, Rose Bloomin, David Bloomin and Steve Bartel.
Mason builds software that helps plan reviewers check building blueprints. Its announcement says it uses a computer vision model and an agentic architecture. It also says reviewers have reported doing architectural review as much as 60% faster. Crunchbase lists the company as San Francisco-based, in AI, construction and document management.
Mason AI is the only investment we could confirm for him, so we cannot say what stage or sectors he prefers. The Mason round was a seed round in applied AI for construction and permitting. He has made no public statements about check size or what he looks for that we could find, so we have left those out.
- Mason AI: AI software that automates building plan reviews. Seed round of $4.3M announced March 2026, led by Urban Innovation Fund.
Investing activity
Adam Cohen appears in 1 AI deal tracked by the Lounge deals desk. The rounds are mostly Seed, with a median round size of $4M. The most recent is Mason AI (Seed, $4.3M, Mar 2026).
Adam Cohen most often invests alongside Urban Innovation Fund, Brian McClendon, Zachary Rosen and David Braginsky, and the companies they back on Lounge are mostly in AI.
Deals
Frequently asked questions about Adam Cohen
Who is Adam Cohen, the angel investor behind Mason AI?
Mason AI's March 2026 seed announcement lists Adam Cohen as an angel investor and VP of Eng at Instacart. We found no verified personal profile beyond that.
What AI startups has Adam Cohen invested in?
The one we could confirm is Mason AI, which raised a $4.3M seed round in March 2026. We found no other confirmed AI investments.
What is Adam Cohen's check size?
His check size is not public. Mason's announcement does not give individual angel amounts.
What stage does Adam Cohen invest in?
His one confirmed investment, in Mason AI, was at seed stage. He has not publicly stated a stage preference.
Should I pitch Adam Cohen for my AI startup?
His one confirmed deal is a seed-stage AI company, and he comes from engineering leadership. Founders building applied AI products may find that relevant, but he has not published a thesis. Ask a mutual contact, such as a Mason AI founder, for an introduction.
Is Adam Cohen an angel investor?
Yes. Adam Cohen invests personally as an angel.
What AI companies has Adam Cohen invested in?
Adam Cohen's AI investments include Mason AI. The 1 round on Lounge are listed on this page with amounts, dates and co-investors.
What stage does Adam Cohen invest at?
In the rounds tracked on Lounge, Adam Cohen has invested at Seed, with a median round of $4M.
Who does Adam Cohen co-invest with?
Adam Cohen's most frequent co-investors on Lounge are Urban Innovation Fund (1 deal), Brian McClendon (1 deal), Zachary Rosen (1 deal), David Braginsky (1 deal) and Steve Bartel (1 deal).
How can founders reach Adam Cohen?
Founders on Lounge can see Adam Cohen's contact details in AI Investor Contacts (paid plans), check for a warm introduction through members who worked with them under Warm Paths, and add Adam Cohen to their Investor Pipeline to track the conversation.