# 01 Advisors: portfolio, investments and team > 01 Advisors is a vc firm based in United States. 13 investments on record, 5 in the last 12 months, latest Oct 2026. Portfolio, stages, co-investors and team. Source: https://millionrounds.com/fund/01-advisors (Millionrounds; every figure on the page links to its filing or article) United States · [Investor](https://millionrounds.com/investors) # 01 Advisors Last cheque observed Oct 2026; 13 cheques on record. Email VC firm Deploying now New fund $132M, Sept 2026 Seed Series A Series B AI & Machine Learning Artificial Intelligence & Machine Learning (AI/ML) Big Data & Analytics Follow 01 Advisors and see its new cheques in your feed. [Start following](https://millionrounds.com/login?join=1&why=follow&next=%2Ffund%2F01-advisors) Deploying now **83%** of best year **5** **cheques in 12 months**, 13 on record Since the last cheque **13** days **00** hrs **00** min **00** sec Median round **$76M** Rounds led **3 of 13** Mostly in **United States, 100%** Pitch 01 Advisors ## 01 Advisors highlights - 01 5 cheques in the last 12 months - 02 Mostly Series A and Series B: 67% of its rounds - 03 Led 3 rounds ## What they do > 01A is a Venture Capital Firm. From their own website - **Type:** VC firm (from a list, unverified) - **Cheque size:** Up to $20M as they say - **Stages:** Seed Series A Series B Growth Pre-IPO - **Sectors:** AI & Machine Learning Artificial Intelligence & Machine Learning (AI/ML) Big Data & Analytics - **Based in:** San Francisco, United States - **Cold pitches:** Not stated ## The record Every round we can evidence, newest first **13 appearances** - **2026** 5 rounds - **Oct** **[Warp Sciences](https://millionrounds.com/company/warp-sciences)** Series A · US · Analytics India Magazine **$215M** With 27 others - **Oct** **[Arena](https://millionrounds.com/company/arena)** Series B · US · Firms' own news pages **$200M** With 7 others - **May** **[Capchase](https://millionrounds.com/company/capchase)** US · Crunchbase News **$200M** *Led* - **Mar** **[Crosby](https://millionrounds.com/company/crosby)** Series B · US · AlleyWatch **$60M** With 6 others - **Feb** **[Render](https://millionrounds.com/company/render)** Series C · US · TechStartups **$100M** With 7 others - **2025** 4 rounds - **Nov** **[Sublime Security](https://millionrounds.com/company/sublime-security)** Series C · US · AlleyWatch **$150M** With 10 others - **Sept** **[Micro1](https://millionrounds.com/company/micro1)** Series A · US · TechCrunch **$35M** *Led* - **May** **[Siro](https://millionrounds.com/company/siro)** Series B · TechCrunch **$50M** With 9 others - **Feb** **[Baseten](https://millionrounds.com/company/baseten)** Series C · US · TechStartups **$75M** With 6 others - **2023** 1 round - **Sept** **[Linear](https://millionrounds.com/company/linear)** Series B · US · Karri Saarinen **$35M** With 16 others - **2021** 1 round - **Oct** **[LOOP](https://millionrounds.com/company/loop)** Series A · US · Foundry Group **Undisclosed** *Led* - **2019** 2 rounds - **Dec** **[Observe.ai](https://millionrounds.com/company/observe-ai)** Series A · US · FinSMEs **$26M** With 4 others - **Sept** **[Tipalti](https://millionrounds.com/company/tipalti)** Series D · US · FinSMEs **$76M** With 3 others An announcement gives the size of the round, not the size of this investor's cheque: the only rounds that imply a cheque are those where they were the sole named investor. ## The team Named by the firm itself, on a filing, its Form ADV or its company registration **2 named** AM **Adam Michael Bain** Managing Director of General Partner i Filing they signed RW **Richard William Costolo** Managing Director of General Partner i Filing they signed We also hold **6** people at this firm from the lists this database was built from: a weaker source than the filings, since a list does not say when a title ended. Login to see them. ## What the register says From the firm's own filings with the SEC, which it must file accurately by law **$1.3B** gross assets of its funds Oct 2026 **Exempt** reporting adviser venture or small private funds - **Legal name:** 010118 Management, L.P. - **SEC number:** CRD 301237 New fund on file **$132M** raised in Sept 2026 From its SEC filing, not a journalist: a firm that has just raised has money to deploy. ## The cheque Seed Series A Series B Median round joined **$76M** the round, not its cheque Led 3 of 13 rounds **23%** - **Said size:** Up to $20M - **Sole investor:** Never alone - **Last cheque:** Oct 2026 Rounds by stage said on their site - Series A said *4* - Series B said *4* - Series C *3* - Series D *1* - Seed said *-* - Growth said *-* - Pre-IPO said *-* Cheques by month Led Joined Dec 2023 Nov 2026 Often in the room with - [IVP](https://millionrounds.com/fund/ivp) 3 - [Index Ventures](https://millionrounds.com/fund/index-ventures) 3 - [Georgian](https://millionrounds.com/fund/georgian) 2 - [Lightspeed Venture Partners](https://millionrounds.com/fund/lightspeed-venture-partners) 2 - [Lux Capital](https://millionrounds.com/fund/lux-capital) 2 - [Sequoia Capital](https://millionrounds.com/fund/sequoia-capital) 2 **Pitching 01 Advisors?** Put them on your fundraising board with this record on the card, and follow them to hear when they write a new cheque. Add to your CRM *→* ## Who they invest alongside The investors most often in the same rounds as 01 Advisors. A count of rooms they were both in, not a relationship either has claimed. [**IVP** VC firm **3** rounds together](https://millionrounds.com/fund/ivp)[**Index Ventures** VC firm **3** rounds together](https://millionrounds.com/fund/index-ventures)[**Georgian** VC firm **2** rounds together](https://millionrounds.com/fund/georgian)[**Lightspeed Venture Partners** VC firm **2** rounds together](https://millionrounds.com/fund/lightspeed-venture-partners)[**Lux Capital** VC firm **2** rounds together](https://millionrounds.com/fund/lux-capital)[**Sequoia Capital** VC firm **2** rounds together](https://millionrounds.com/fund/sequoia-capital)[**SignalFire** VC firm **2** rounds together](https://millionrounds.com/fund/signalfire)[**South Park Commons** Accelerator **2** rounds together](https://millionrounds.com/fund/south-park-commons) ## Recently backed The latest companies 01 Advisors put money into. [**Arena** $200M · Oct 2026](https://millionrounds.com/company/arena)[**Capchase** $200M · May 2026](https://millionrounds.com/company/capchase)[**Crosby** $60M · Mar 2026](https://millionrounds.com/company/crosby)[**Render** $100M · Feb 2026](https://millionrounds.com/company/render)[**Sublime Security** $150M · Nov 2025](https://millionrounds.com/company/sublime-security)[**Micro1** $35M · Sept 2025](https://millionrounds.com/company/micro1) ## Quick answers about 01 Advisors ### What does 01 Advisors invest in? 01 Advisors invests most often at Series A and Series B (67% of the rounds on record), in sectors such as AI & Machine Learning, Artificial Intelligence & Machine Learning (AI/ML) and Big Data & Analytics. ### How active is 01 Advisors? 13 investments on record, 5 of them in the last 12 months, and it led 3. The most recent was in Oct 2026. ### What has 01 Advisors invested in recently? Its most recent investments on record: Warp Sciences (Series A, Oct 2026), Arena (Series B, Oct 2026) and Capchase (Undisclosed round, May 2026). ### How big are 01 Advisors's cheques? The median round it joins is $76M. ### Does 01 Advisors lead rounds? Yes: it led 3 of its 13 investments on record (23%). ### Where does 01 Advisors invest? Most of the companies it backs are in the United States (100%). ### Is 01 Advisors investing now? Yes: it is actively investing, with 5 investments in the last 12 months. ### Who does 01 Advisors invest alongside? Most often IVP (3 rounds together), Index Ventures (3 rounds together) and Georgian (2 rounds together). ## Raising now? Find the investors who back rounds like yours, and keep every conversation on one fundraising board. Find similar investorsOpen your CRM Built from the rounds we watched, its filings and its own website, refreshed every night. [How we count](https://millionrounds.com/methodology) · [Report a correction](https://millionrounds.com/corrections?slug=01-advisors) · [Is this your firm? Claim it](https://millionrounds.com/claim?org=01-advisors)