Fundraising Fox

Open Field Capital

Crossover fund

New York Β· Seed–Late Stage Β· 1 people tracked

Also known as OPEN FIELD CAPITAL LLC

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Investment thesis

Open Field Capital focuses exclusively on emerging technology, managing both public equity and private venture investments. The firm believes disruptive technologies are the strongest driver of sustained equity outperformance. Its public strategy combines a buy-and-hold approach with proactive management of cash weightings, allowing it to capitalize on the price volatility of fast-growing emerging technology companies. The firm also emphasizes convergent 'megatrends,' targeting opportunities where the intersection of multiple technologies amplifies market value. Its long-only client base includes institutional investors, family offices, and high net worth individuals.

Invests inAI & Machine LearningDeep TechGlobalNew YorkUnited States

Source: firm website, verified Aug 7, 2026.

Stage
Seed–Late Stage
HQ
New York, US
Instruments
Equity
Founded
2003
AUM
$208.1M
Tracked investments
56

Team Β· 1 people

from the firm's website
Marc Weissin

Named as having discretionary authority over Open Field Capital LLC's private investments.

What they invest in

from 40 of 56 portfolio companies

AI & Machine Learning Γ—24Deep Tech Γ—14Hardware Γ—11Data & Infrastructure Γ—9Cloud Computing Γ—8Enterprise Software Γ—8Biotech Γ—7Semiconductors Γ—7

HQs:United StatesΓ—17AustraliaΓ—1FranceΓ—1

Investments Β· 56 tracked

founders shown can be your intro path
Bloom Energybloomenergy.comin𝕏NYSE: BE

Bloom Energy manufactures solid oxide fuel cell systems for onsite power generation at commercial, industrial, and data center facilities.

CleantechEnergyHardware

K.R. Sridhar(Founder, Chairman, and CEO)

MongoDBmongodb.com𝕏NASDAQ: MDB

MongoDB is a cloud database company that provides Atlas, a multi-cloud data platform for transactional, search, and generative AI workloads, along with enterprise on-premises options and integration tools for developers and partners.

AI & Machine LearningCloud ComputingData & InfrastructureDeveloper ToolsNew York, US

Chirantan 'CJ' Desai(President & CEO)Dwight Merriman(Director)Roelof Botha(Director)Sydney Carey(Chief Financial Officer)Dev Ittycheria(Chief Executive Officer)Charles M. Hazard, Jr.(Director)

Nutanixnutanix.comin𝕏NASDAQ: NTNX

Nutanix provides a cloud infrastructure platform that enables organizations to run applications, data, and AI across hybrid environments including public clouds, private clouds, datacenters, on-premises, and edge locations.

AI & Machine LearningCloud ComputingData & InfrastructureEnterprise SoftwareSan Jose, US

Rajiv Mirani(Executive Officer)Howard Ting(Executive Officer)Michael P. Scarpelli(Director)Jeffrey T. Parks(Director)Dheeraj Pandey(Executive Officer, Director)Duston M. Williams(Executive Officer)

Oklooklo.comin𝕏NYSE: OKLO

Oklo develops next-generation fast fission reactors for producing clean electricity at scale, with a focus on safety features and the ability to use recycled nuclear waste as fuel.

Advanced ManufacturingCleantechClimate TechDeep TechEnergySan Francisco, US

Jacob DeWitte(Founder/CEO)inCaroline Cochran(Founder)in

A123 Systemsa123systems.com
Actifioactifio.com

Actifio provides enterprise-class backup and disaster recovery solutions for Google Cloud and hybrid workloads through a SaaS platform.

Cloud ComputingEnterprise SoftwareSaaSWaltham, US

David Chang(Executive Officer)Ashutosh Ashutosh(Executive Officer, Director)Brian Reagan(Executive Officer)Bob Hower(Director)Jit Saxena(Director)Peter Levine(Director)

Alice Bobalice-bob.comin𝕏

Alice & Bob develops quantum computing hardware based on the cat qubit, a qubit design with built-in error correction, and offers Helium, a testbed for error correction.

Deep TechHardwareQuantum Computing

Arbolarbol.ioin𝕏

Arbol develops parametric insurance products that use climate data and AI to provide rapid coverage against weather and climate-related risks for farmers, supply chain companies, and corporations.

AI & Machine LearningClimate TechInsurTech

Atonarpatonarp.com
AttoTudeattotude.comin

AttoTude develops optical interconnect technology for data centers to support artificial intelligence and exascale computing applications.

AI & Machine LearningData & InfrastructureDeep TechHardwareMenlo Park, US

David F. Welch(Co-founder)Joy Laskar(Co-founder)

BoardPeter Wagner(Director)Basil Alwan(Director)

Avicenaavicena.techin𝕏

Avicena develops microLED-based interconnect technology for chip-to-chip and data communication, including ASIC development and fabrication.

Deep TechHardwareSemiconductorsLos Angeles, US

Ken Charhut(Director)Morteza Gharib(Director)Sean Brady(Executive Officer)Henry Wolf(Director)Matthew Tasooji(Director)Marco Chisari(CEO)

Berkeleylightsberkeleylights.com
Bossanovabossanova.com
By Cemanticaluminoso.comin

Luminoso is a customer experience (CX) company that works with local and global customers through a network of strategic and technology partners.

AI & Machine LearningEnterprise SoftwareMarketing TechSaaS

Cerebrascerebras.netin𝕏

Cerebras designs and manufactures wafer-scale AI processors and systems for data centers, enabling accelerated AI training and inference at scale.

AI & Machine LearningDeep TechHardwareSemiconductors

Andrew Feldman(Co-founder & CEO)Gary LauterbachMichael JamesSean LieJean-Philippe Fricker

CiDRA Concrete Systemscidraconcrete.comin

CiDRA provides SMARThatch, a real-time measurement system for ready-mix concrete trucks that monitors air content, volume, temperature, and other parameters via acoustic technology.

Advanced ManufacturingConstruction TechIoT

CiDRA Minerals Processingcidra.comin𝕏

CiDRA Minerals Processing develops mineral separation and processing technologies for mining operations, including SonarTrac and CycloneTrac solutions that improve mill grinding efficiency and flowsheet design.

AgTech

Clouderacloudera.comin𝕏

Cloudera is a hybrid platform for data, analytics, and AI, serving enterprises and data teams.

AI & Machine LearningCloud ComputingData & InfrastructureEnterprise Software

Amr Awadallah(Founder)in

Contasticsugarcrm.comin𝕏acquired by SugarCRM

SugarCRM is a customer relationship management (CRM) platform designed for sales teams to manage customer data, track deals, and streamline sales processes.

Enterprise SoftwareSaaSSales Tech

Corticalcortical.io
Data Robotdatarobot.comin

DataRobot develops an AI and machine learning platform that automates model development and deployment for enterprises.

AI & Machine LearningData & InfrastructureDeveloper ToolsEnterprise SoftwareBoston, US

Jeremy Achin(Executive Officer, Director, Promoter)Harry Weller(Director)Thomas de Godoy(Executive Officer, Director, Promoter)Christopher Lynch(Director)

DataFleets Ltdliveramp.comin

LiveRamp is a data collaboration platform that connects first-, second-, and third-party data to enable AI-driven advertising and marketing for brands, publishers, and platforms.

AdTechData & InfrastructureMarketing TechSan Francisco, US

Scott Howe(CEO)

Dclimatedclimate.netin𝕏

dClimate is a decentralized climate data platform that provides granular climate datasets and tools to help businesses and governments measure, monitor, and mitigate climate risks.

Climate TechCrypto & Web3Data & InfrastructureNew York, US

Todd Olson(Executive Officer)

Delfi Diagnosticsdelfidiagnostics.comin

DELFI Diagnostics develops FirstLook Lung, a blood-based laboratory test for lung cancer screening that identifies genome-wide alterations in individuals eligible for screening.

AI & Machine LearningBiotechDigital HealthHealthtechMedical DevicesBaltimore, US

Peter Bach(Executive Officer)Elizabeth Homans(Director)Rishi Gupta(Director)Justin Kao(Director)Jennifer Buechel(Executive Officer)Victor Velculescu(Executive Officer, Director, Promoter)

Eliyaneliyan.comin

Eliyan develops die-to-die (D2D) and chip-to-chip (C2C) interconnect technology, including its NuLink and NuLink-X PHY, supporting industry-standard (BoW, UCIe) and proprietary (SBD) solutions for high-bandwidth, power-efficient chip connectivity in advanced and standard packaging.

Deep TechHardwareSemiconductors

Ramin Farjadrad(Founder & CEO)Patrick Soheili(Co-founder & CEO)Syrus Ziai(Co-founder & VP of Engineering)

Eridueridu.aiin𝕏

Eridu develops networking infrastructure optimized for artificial intelligence workloads.

AI & Machine LearningCloud ComputingDeep TechHardwareSaratoga, US

Drew Perkins(CEO and founder)

Evernoteevernote.com𝕏

Evernote is a note-taking and productivity platform that helps individuals and teams capture, organize, and access information across devices.

AI & Machine LearningSaaS

Fathom Radiantfathomradiant.coin
Federationfederation.bio
Form CRSframerusercontent.com
genesisgenesistherapeutics.ai

Genesis Therapeutics discovers and develops drugs for challenging biological targets by combining artificial intelligence with biotech expertise.

AI & Machine LearningBiotech

Groqgroq.comin𝕏

Groq designs and manufactures the LPU (Language Processing Unit), a chip purpose-built for AI inference, and operates GroqCloud, a platform for running inference workloads with low latency and cost efficiency across global data centers.

AI & Machine LearningCloud ComputingSemiconductors

Jonathan Ross(Founder & CEO)in

Hammerspacehammerspace.comin𝕏

Hammerspace offers a data platform that unifies unstructured data across disparate storage silos, on-premises data centers, and public clouds (AWS, Azure, GCP, OCI) into a single global file system to make data available for AI workflows and GPU clusters.

AI & Machine LearningCloud ComputingData & Infrastructure

Histidehistide.com
Hum Capitalhumcapital.comin𝕏

Hum Capital provides AI-powered deal flow screening and underwriting tools for lenders and investors, delivering pre-qualified proprietary deals and automated credit monitoring based on live company financial data.

AI & Machine LearningData & InfrastructureFintechSaaS

Juvena Therapeuticsjuvenatherapeutics.comin

Juvena Therapeutics develops biologics derived from human secreted proteins to treat aging-related diseases, using AI-enabled drug discovery to identify tissue-restorative therapeutics for muscle and metabolic disorders.

AI & Machine LearningBiotechLongevityMedical DevicesRedwood City, US

Jeremy O'Connell, PhD(Chief Scientific Officer and Co-Founder)Hanadie Yousef, PhD(Executive Advisor and Co-Founder)Steven James(Director)inStephen Juelsgaard(Director)inHanadie Yousef(Executive Officer, Director)Laura Lande-Diner(Director)in

Mellitushealthmellitushealth.com

Mellitus Health automates an algorithm-based insulin dosing system for medical professionals, generating precision dosing recommendations across all standard insulin regimens and types.

Digital HealthHealthtechMedical Devices

Mayer B. Davidson(MD, former American Diabetes Association president)

Mojo Visionmojo.visionin𝕏

Mojo develops a micro-LED platform technology for AI infrastructure and next-generation displays.

AI & Machine LearningDeep TechHardware

Steve Jurvetson(Founder)

Neo Cybernaticaneocybernetica.com

Neo Cybernetica is a stealth-mode company developing cybernetics technology that combines advances in neuroscience, cognitive science, artificial intelligence, simulation, and robotics.

AI & Machine LearningDeep TechRobotics

Nuancedhealthnuancedhealth.comin

Nuanced Health operates a preclinical drug discovery and development platform that humanizes the mouse microbiome to recreate the biological heterogeneity of human populations.

AI & Machine LearningBiotechDeep Tech

Numentanumenta.com
Paragraf - companyparagraf.comin𝕏

Graphene electronics company pioneering mass production of graphene-based devices.

Cambridgeshire

Simon Thomas(Chief Executive Officer of the issuer.)

Polarisqbpolarisqb.comin

Polaris Quantum Biotech (PolarisQB) offers a Quantum-Aided Drug Design (QuADD) platform that uses quantum annealing and quantum-inspired algorithms to search ultra-large chemical spaces and identify optimized small-molecule drug candidates.

AI & Machine LearningBiotechQuantum Computing

Prellisbioprellisbio.comin𝕏

Prellis develops an AI-enabled platform for antibody discovery using 3D-printed organoids that recapture human immune biology, generating therapeutic antibody candidates for multiple disease areas.

AI & Machine LearningBiotechDeep TechHayward, US

Arvind Gupta(Director)Melanie Matheu(Executive Officer, Director)Noelle Mullin(Executive Officer, Director)Rohit Sharma(Director)

PsiQuantum Computingpsiquantum.comin𝕏

PsiQuantum builds fault-tolerant quantum computers using photonic qubits and semiconductor manufacturing processes.

Deep TechHardwareQuantum ComputingSemiconductorsMoreton Bay, AU

Prof. Jeremy O'Brien(Co-founder & Executive Chairman)Prof. Terry Rudolph(Co-founder & Chief Architect)Dr. Pete Shadbolt(Co-founder & Chief Scientific Officer)Prof. Mark Thompson(Co-founder & Chief Technology Officer)Victor Peng(Chief Executive Officer)

Rain AIrain.aiin

Rain develops energy-efficient hardware for artificial intelligence workloads.

AI & Machine LearningHardwareSemiconductors

Rivermeadowrivermeadow.comin𝕏

RiverMeadow provides a unified platform for migrating, optimizing, and modernizing workloads across hybrid and multi-cloud environments.

Cloud ComputingDeveloper ToolsEnterprise Software

Synthegosynthego.comin𝕏

Synthego provides CRISPR genome engineering products and solutions at scale, supporting research and therapeutic development from discovery through clinical applications.

BiotechDeep TechHealthtechRedwood City, US

Paul John Dabrowski(Executive Officer, Director)Michael Jakub Dabrowski(Executive Officer, Director)Drew Oetting(Director)Scott Nolan(Director)

Teratonixteratonix.com
Turntideturntide.com𝕏
Twosensetwosense.aiin𝕏

Twosense uses passive biometrics and machine learning for continuous user authentication in enterprise environments, eliminating the need for passwords and physical tokens.

AI & Machine LearningCybersecurityEnterprise SoftwareHealthtechBrooklyn, US

Dawud Gordon(CEO)John Tanios(Executive Officer, Director)Christopher Wake(Director)

Vistavista.aiin𝕏

Vista AI develops software that automates MRI image acquisition to enable clinicians to perform high-quality cardiac scans quickly and consistently.

AI & Machine LearningHealthtechMedical Devices

xLightxlight.comin𝕏

xLight develops free-electron laser (FEL) technology and advanced accelerator systems.

Advanced ManufacturingDeep TechHardwareSemiconductors

Nicholas Kelez(Chief Executive Officer and Chief Technology Officer)

BoardPat Gelsinger(General Partner at Playground Global (investor/advisor))

Zocdoczocdoc.com

New York, US

Ken Howery(Director)Cyrus Massoumi(Executive Officer, Director)David Weiden(Director)Netta Samroengraja(Executive Officer, Director)Oliver Kharraz(Executive Officer, Director)

Exits Β· 6

IPOs and acquisitions across the tracked portfolio

Bloom EnergyNYSE: BEMongoDBNASDAQ: MDBNutanixNASDAQ: NTNXOkloNYSE: OKLOPalantir’s forward-deployed engineersNASDAQ: PLTRContasticacq. by SugarCRM

Portfolio news

latest coverage across their companies

Frequently asked questions

What stage does Open Field Capital invest at?
Open Field Capital invests at the Seed, Late Stage stages.
What sectors does Open Field Capital focus on?
Open Field Capital focuses on AI & Machine Learning, Deep Tech.
Where is Open Field Capital located?
Open Field Capital is headquartered in New York, US.

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