# Open Field Capital: portfolio, investments and team > Open Field Capital is a vc firm based in United States. 5 investments on record, latest Aug 2025. Portfolio, stages, co-investors and team. Source: https://millionrounds.com/fund/open-field-capital (Millionrounds; every figure on the page links to its filing or article) United States · [Investor](https://millionrounds.com/investors) # Open Field Capital Last cheque observed Aug 2025. Silence since then is not evidence of inactivity: our sources miss unannounced rounds. Quiet VC firm Seed Series A Series B Mobile Computing Cloud Computing Artificial Intelligence Cheques on record **0%** of best year **0** **cheques in 12 months**, 5 on record Since the last cheque **452** days **00** hrs **00** min **00** sec Median round **$53M** Rounds led **0 of 5** Mostly in **United States, 60%** Pitch Open Field Capital ## Open Field Capital highlights - 01 5 rounds on record - 02 Mostly Series C and Series A: 75% of its rounds ## What they do > Open Field's long only clients include institutional investor... From their own website - **Type:** VC firm (from a list, unverified) - **Cheque size:** Not stated - **Stages:** Seed Series A Series B Growth - **Sectors:** Mobile Computing Cloud Computing Artificial Intelligence - **Based in:** New York, United States - **Cold pitches:** Not stated ## The record Every round we can evidence, newest first **5 appearances** - **2025** 1 round - **Aug** **[Paragraf](https://millionrounds.com/company/paragraf)** Series C · GB · Firms' own news pages **$55M** With 9 others - **2018** 1 round - **Nov** **[Mojo Vision](https://millionrounds.com/company/mojo-vision)** US · FinSMEs **$50M** With 8 others - **2015** 1 round - **Oct** **[cortical.io](https://millionrounds.com/company/cortical-io)** Series C · AT **$1.8M** With 1 other - **2014** 1 round - **Mar** **[Vicarious](https://millionrounds.com/company/vicarious)** Series B · US **$40M** With 18 others - **2012** 1 round - **Aug** **[Vicarious](https://millionrounds.com/company/vicarious)** Series A · US · techcrunch.com **$15M** With 4 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** JP **James Patrick Francis Stableford** Director of Portfolios, Chief Compliance Officer i Form ADV MJ **Marc Jay Weiss** Chief Investment Officer i Form ADV We also hold **3** 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 **$208M** assets it manages Oct 2026 **Registered** investment adviser full reporting to the SEC - **Legal name:** OPEN Field Capital LLC - **SEC number:** CRD 136313 Funds on its Form ADV **5** private funds, **$72M** in gross assets · filed Mar 2024 - Emerging Technologies Fund III LLC *Private equity* 23 investors $31M - OFPP LLC *Private equity* 48 investors $27M - Emerging Technologies Fund II LLC *Private equity* 11 investors $6.6M - Emerging Technologies Fund III L.P. *Private equity* 9 investors $6.4M - Emerging Technologies Fund II L.P. *Private equity* 6 investors $1.8M ## What they claim to have backed From their own portfolio page (on their website) **36** of 49 we have independently watched raise [A123systems](https://millionrounds.com/company/a123-systems)[Alice-bob](https://millionrounds.com/company/alice-and-bob)[Arbol](https://millionrounds.com/company/arbol)[Atonarp](https://millionrounds.com/company/atonarp)[Attotude](https://millionrounds.com/company/attotude)[Avicena](https://millionrounds.com/company/avicena)[Berkeleylights](https://millionrounds.com/company/berkeley-lights)[Bloomenergy](https://millionrounds.com/company/bloom-energy)[Bossanova](https://millionrounds.com/company/bossa-nova)[Cerebras](https://millionrounds.com/company/cerebras-systems)[Cidra](https://millionrounds.com/company/cidra)[Datarobot](https://millionrounds.com/company/datarobot)[Dclimate](https://millionrounds.com/company/dclimate)[Delfidiagnostics](https://millionrounds.com/company/delfi-diagnostics)[Docusign](https://millionrounds.com/company/docusign)[Eliyan](https://millionrounds.com/company/eliyan)[Eridu](https://millionrounds.com/company/eridu)[Genesistherapeutics](https://millionrounds.com/company/genesis-therapeutics)[Groq](https://millionrounds.com/company/groq)[Hammerspace](https://millionrounds.com/company/hammerspace)[Histide](https://millionrounds.com/company/histide)[Juvenatherapeutics](https://millionrounds.com/company/juvena-therapeutics)[Luminoso](https://millionrounds.com/company/luminoso)[Mojo](https://millionrounds.com/company/mojo-vision)[Mongodb](https://millionrounds.com/company/mongodb)[Neocybernetica](https://millionrounds.com/company/neo-cybernetica)[Oklo](https://millionrounds.com/company/oklo)[Palantir](https://millionrounds.com/company/palantir)[Paragraf](https://millionrounds.com/company/paragraf)[Prellisbio](https://millionrounds.com/company/prellis-biologics)[Psiquantum](https://millionrounds.com/company/psiquantum)[Rain](https://millionrounds.com/company/rain)[Synthego](https://millionrounds.com/company/synthego)[Turntide](https://millionrounds.com/company/turntide)[Xlight](https://millionrounds.com/company/xlight)[Zocdoc](https://millionrounds.com/company/zocdoc) Boingo Cidraconcrete Cortical Federation Humcapital Mellitushealth Nuancedhealth Numenta Polarisqb Rivermeadow Twosense Vista acquired by SugarCRM Weaker than a round we watched, stronger than a list somebody sold us. A firm is far less willing to put a company on its own site that it never funded. ## The cheque Seed Series A Series B Median round joined **$53M** the round, not its cheque Led 0 of 5 rounds **0%** - **Sole investor:** Never alone - **Last cheque:** Aug 2025 Rounds by stage said on their site - Series C *2* - Series A said *1* - Series B said *1* - Seed said *-* - Growth said *-* Cheques by month Led Joined Nov 2023 Oct 2026 Often in the room with - [AME Cloud Ventures](https://millionrounds.com/fund/ame-cloud-ventures) 2 - [Felicis](https://millionrounds.com/fund/felicis-ventures) 2 - [Founders Fund](https://millionrounds.com/fund/founders-fund) 2 - [Good Ventures](https://millionrounds.com/fund/good-ventures) 2 **Pitching Open Field Capital?** 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 Open Field Capital. A count of rooms they were both in, not a relationship either has claimed. [**AME Cloud Ventures** VC firm **2** rounds together](https://millionrounds.com/fund/ame-cloud-ventures)[**Felicis** VC firm **2** rounds together](https://millionrounds.com/fund/felicis-ventures)[**Founders Fund** VC firm **2** rounds together](https://millionrounds.com/fund/founders-fund)[**Good Ventures** VC firm **2** rounds together](https://millionrounds.com/fund/good-ventures) ## Recently backed The latest companies Open Field Capital put money into. [**Paragraf** $55M · Aug 2025](https://millionrounds.com/company/paragraf)[**Mojo Vision** $50M · Nov 2018](https://millionrounds.com/company/mojo-vision) ## Quick answers about Open Field Capital ### What does Open Field Capital invest in? Open Field Capital invests most often at Series C and Series A (75% of the rounds on record), in sectors such as Mobile Computing, Cloud Computing and Artificial Intelligence. ### How active is Open Field Capital? 5 investments on record, 0 of them in the last 12 months. The most recent was in Aug 2025. ### What has Open Field Capital invested in recently? Its most recent investments on record: Paragraf (Series C, Aug 2025) and Mojo Vision (Undisclosed round, Nov 2018). ### How big are Open Field Capital's cheques? The median round it joins is $53M. ### Does Open Field Capital lead rounds? Rarely, if at all: none of its 5 investments on record names it as the lead. ### Where does Open Field Capital invest? Most of the companies it backs are in the United States (60%), the United Kingdom (20%) and Austria (20%). ### Is Open Field Capital investing now? No investments in the last 12 months; the latest was in Aug 2025. ### Who does Open Field Capital invest alongside? Most often AME Cloud Ventures (2 rounds together), Felicis (2 rounds together) and Founders Fund (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=open-field-capital) · [Is this your firm? Claim it](https://millionrounds.com/claim?org=open-field-capital)