Adam D'Angelo
About Adam D'Angelo
Adam D'Angelo is an American internet entrepreneur based in Mountain View, California. He studied at Caltech and attended Phillips Exeter Academy. He joined Facebook shortly after its 2004 launch. He was its chief technology officer from 2006 to 2008 and then vice president of engineering until he left in 2008.
In June 2009 he co-founded Quora with Charlie Cheever, a former Facebook engineer. D'Angelo has stayed on as CEO, and Cheever stepped back from active management in 2012. In May 2012 D'Angelo put $20 million of his own money into Quora's $50 million Series B round.
In December 2022 Quora launched Poe, a standalone app for chatting with multiple AI models and bots. He has said the team started building it inside Quora, then spun it out as its own app. D'Angelo joined OpenAI's board in 2018 and is also on the board of Asana. In November 2023 he was one of four board members who voted to remove Sam Altman as OpenAI CEO. He was the only one of the original six board members to remain after Altman returned.
Crunchbase counts 26 investments for D'Angelo, with 0 lead investments, 0 exits and 0 companies founded. Other databases report different totals. Dealroom lists 57 investments and PitchBook lists 74, and these figures depend on how each service counts rounds and follow-ons. PitchBook classifies him as an angel investor and also lists him as a limited partner at Diagram Ventures.
His dated deals are mostly 2023 and later. Crunchbase's activity timeline shows him in rounds for DatologyAI (February 2024), MatX (November 2024), Mercor (September 2024), Lovable (February 2025) and Town (March 2025). It also shows Oboe (December 2025), and Mechanize, Espa and roomix (spring 2026). In most of these he appears as one of several investors, and Crunchbase shows no lead roles for him.
Crunchbase records 25 AI investments since 2023. The AI portfolio it lists includes Lovable, Argn, roomix, Outsmart Education, DatologyAI, Outsmart, Fennel AI, Protege, Mercor, Oboe, Matic Robots and Console.
Several of these were announced publicly. Mercor, an AI recruiting platform, raised a Series A in 2024 led by Benchmark's Victor Lazarte and Bill Gurley. Press coverage named D'Angelo among the participating investors. Lovable, a Sweden-based AI startup, announced a $15 million pre-Series A in February 2025 led by Creandum, with D'Angelo among the angel investors. Tracxn lists him in the 2024 seed rounds of DatologyAI ($11.6M) and Protege ($10M). Crunchbase also shows him in MatX, whose Series A investors included Spark Capital.
His angel investments in AI sit alongside his operating work on Poe and his OpenAI board seat. Founders pitching him can expect him to know the current model and application landscape, and public records do not say how he uses that in diligence.
Crunchbase round labels show him in angel, pre-seed, seed and Series A rounds. The sectors in his recent activity are AI applications, AI infrastructure and data (DatologyAI, MatX), developer and enterprise software (Lovable, Console, Codegen), and AI for hiring and education (Mercor, Oboe, Outsmart). Dealroom's portfolio list also includes Pika, PlanetScale and CodeSignal.
Database entries show companies mainly in the United States, plus Lovable in Sweden. D'Angelo has not published a check size or a statement about what he looks for in a pitch, so neither is given here. Several of his rounds had well-known seed or Series A funds as leads, which suggests a founder with an institutional lead has a clearer route to him than one cold pitching.
- Lovable: Swedish AI app-building startup. He was an angel in its $15M pre-Series A led by Creandum, announced February 2025.
- Mercor: AI-driven recruiting platform. He took part in its 2024 Series A led by Benchmark.
- DatologyAI: AI training data startup. He is listed in its seed round in February 2024.
- Protege: AI data company. He is listed in its $10M seed round in September 2024.
- MatX: AI chip startup. He is listed in its Series A in November 2024.
- Town: He is listed in its $18M seed round in March 2025.
- Oboe: Education AI product. Crunchbase shows a round with him in December 2025.
- Console: Listed in his AI portfolio, with a round in September 2025.
- Outsmart and Outsmart Education: Listed in his AI portfolio, with rounds in September 2025.
- Fennel AI, Matic Robots and Argn: Listed in his Crunchbase AI portfolio. Round details are not public in the sources reviewed.
- en.wikipedia.org/wiki/Adam_D%27Angelo
- crunchbase.com/person/adam-dangelo
- crunchbase.com/person/adam-dangelo/person_overview_investor/timeline
- crunchbase.com/person/9ac9ae67-8b94-b039-57e4-04b7f2791719
- cooley.com/news/coverage/2025/2025-02-25-lovable-announces-15-million-
- dig.watch/updates/ai-startup-mercor-attracts-major-investors-in-30-mil
- tracxn.com/d/people/adam-dangelo/__knoVDIS4udvDAteXAG6Wo1ccGFVDxca-awy
- pitchbook.com/profiles/investor/106497-73
AI portfolio
Investing activity
Adam D'Angelo has made 26 investments according to Crunchbase. 25 of those investments since 2023 were in AI companies, including Lovable, Argn, roomix, Outsmart Education and DatologyAI.
Deals
Frequently asked questions about Adam D'Angelo
Does Adam D'Angelo invest in AI startups?
Yes. Crunchbase counts 25 AI investments since 2023, including Lovable, Mercor, DatologyAI, Protege, Oboe and Console.
What stage does Adam D'Angelo invest in?
Crunchbase labels his rounds as angel, pre-seed, seed and Series A. He has not published a stage preference.
What is Adam D'Angelo's check size?
He has not published one, and Lounge does not estimate it. Ask for a warm introduction before assuming a range.
Does Adam D'Angelo lead rounds?
Crunchbase shows 0 lead investments for him. In rounds such as Mercor and Lovable he joined alongside lead funds.
What companies has Adam D'Angelo built?
He co-founded Quora in 2009 and is its CEO, and Quora launched the Poe AI chat app in December 2022. He was Facebook's CTO from 2006 to 2008.
Is Adam D'Angelo on the OpenAI board?
Yes. He joined OpenAI's board in 2018 and is also on the board of Asana.
Is Adam D'Angelo an angel investor?
Yes. Adam D'Angelo invests personally as an angel. Crunchbase counts 26 investments.
What AI companies has Adam D'Angelo invested in?
Adam D'Angelo's AI investments include Lovable, Argn, roomix, Outsmart Education, DatologyAI, Outsmart, Fennel AI and Protege.
Where is Adam D'Angelo based?
Adam D'Angelo is based in Mountain View, United States.
How can founders reach Adam D'Angelo?
Founders on Lounge can see Adam D'Angelo'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 D'Angelo to their Investor Pipeline to track the conversation.