A.Capital Ventures
About A.Capital Ventures
PitchBook and Crunchbase date the firm to 2014. Crunchbase credits Ronny Conway as founder. Superscout names Ramu Arunachalam as co-founder and general partner. Offices are listed in Menlo Park and at 100 Pine Street in San Francisco. Superscout reports that Conway became managing partner of SV Angel in December 2024 while staying at A.Capital. Fund sizes are not consistently reported. PEI lists three closed funds and a fifth vehicle, A. Capital Partners V, in market, without sizes. The firm's own site does not publish fund sizes, so none are given here. The AI team is not named publicly.
Seedtable's data puts 15 of the firm's 53 tracked deals in artificial intelligence, behind financial services (33), web3 and crypto (28) and general technology (26). Seedtable flags DeepInfra, an AI inference company, as the firm's first inference investment. DeepInfra's Series B was announced on 4 May 2026. Earlier AI entries include Adept AI Labs (Series B, 2023) and Character AI. The 2026 deals on the Lounge desk are humans& and SageOx. SageOx is a Seattle startup building shared memory and context infrastructure so that human teams and AI coding agents stay aligned. Canaan Partners led its $15M seed in May 2026, and A.Capital took part alongside Pioneer Square Labs and Founders' Co-op. Outside AI, the portfolio spans crypto, fintech and developer tools such as Expo.
The firm describes itself as early stage. Tracxn says it mostly invests at Series A in US startups. Its recent AI entries range from seed (SageOx) to Series B (DeepInfra, Adept). The firm does not publish a check size or ownership target. Third-party figures vary, so none are given here. Superscout says it does not require board seats, but that comes from a secondary source.
- humans&: Seed, $480M, January 2026 (round size from the Lounge deals desk).
- SageOx: shared context infrastructure for human and AI agent teams. $15M seed in May 2026, led by Canaan Partners.
- DeepInfra: AI inference platform. $107M Series B announced 4 May 2026, per Seedtable.
- Adept AI Labs: AI agent developer. $350M Series B, March 2023, per Seedtable.
- Unify AI: $8M round in June 2024, per Seedtable. Seedtable categorizes Unify as developer tools.
- Character AI: listed as an AI portfolio company by Seedtable. Round details are not confirmed.
- pitchbook.com/profiles/investor/118725-85
- crunchbase.com/organization/capital-partners-l-p
- superscout.co/investor/a-capital-ventures
- seedtable.com/investors/acapital-ventures
- privateequityinternational.com/institution-profiles/acapital-ventures.
- tracxn.com/d/venture-capital/acapital-ventures/__1ASvM6k7bmuJDOi8S_GgX
- geekwire.com/2026/seattles-sageox-lands-15m-to-help-humans-and-ai-agen
- pulse2.com/sageox-15-million-seed-round-raised-for-human-and-ai-agent-
Investing activity
A.Capital Ventures appears in 2 AI deals tracked by the Lounge deals desk, rounds totalling $495M. The rounds are mostly Seed, with a median round size of $480M. The most recent are SageOx (Seed, $15M, May 2026) and humans& (Seed, $480M, Jan 2026).
A.Capital Ventures most often invests alongside Canaan Partners, Founders' Co-op, A Capital and Pioneer Square Labs, and the companies it backs on Lounge are mostly in AI and AI research lab.
Deals
Frequently asked questions about A.Capital Ventures
Does A.Capital Ventures invest in AI startups?
Yes. Its recent AI deals include a $15M seed in SageOx (May 2026), DeepInfra's Series B (May 2026) and the humans& seed. It also backed Adept AI Labs in 2023.
Who founded A.Capital Ventures?
The firm was founded in 2014. Crunchbase credits Ronny Conway. Superscout lists Conway and Ramu Arunachalam as co-founders.
What stage does A.Capital Ventures invest at?
It calls itself an early-stage firm. Tracxn says it mostly invests at Series A. Its AI deals have ranged from seed to Series B.
What check size does A.Capital Ventures write?
The firm does not publish a check size. Reported figures from third-party databases vary and are not confirmed, so founders should ask the team directly.
Does A.Capital Ventures lead AI rounds?
Not in the examples found. Canaan Partners led SageOx's seed, with A.Capital participating. Seedtable counts only three lead investments across the portfolio.
What AI companies has A.Capital Ventures invested in?
A.Capital Ventures's AI investments include SageOx and humans&. The 2 rounds on Lounge are listed on this page with amounts, dates and co-investors.
Who does A.Capital Ventures co-invest with?
A.Capital Ventures's most frequent co-investors on Lounge are Canaan Partners (1 deal), Founders' Co-op (1 deal), A Capital (1 deal), Pioneer Square Labs (1 deal) and Georges Harik (1 deal).
How can founders reach A.Capital Ventures?
Founders on Lounge can see A.Capital 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 A.Capital Ventures to their Investor Pipeline to track the conversation.