Greenfield Partners
Growth equityActively deployingNew York · Series A–Late Stage · 23 people tracked
Also known as GREENFIELD CITIES III LLC · GREENFIELD CITIES LLC · Greenfield Partners Ill · GREENFIELD PARTNERS, LLC
Investment thesis
Greenfield Partners backs exceptional technology companies at the early growth stage, focusing on the transition point between product-market fit and global scale. The firm targets areas such as AI infrastructure, IT infrastructure, deep tech, cybersecurity, and data platforms, and emphasizes a go-to-market platform to help portfolio companies break through growth barriers.
Source: firm website, verified Aug 25, 2026.
Team · 23 people
from the firm's website & public directories
What they invest in
from 31 of 33 portfolio companiesAI & Machine Learning ×21Enterprise Software ×11Cybersecurity ×6Developer Tools ×5Cloud Computing ×4Deep Tech ×4SaaS ×4Advanced Manufacturing ×3
HQs:United States×13Germany×3Israel×2
Who they back
founder profiles across 13 portfolio companiesFounding team size:solo founder×52 founders×33 founders×34+ founders×2
Where their founders studiedfrom 11 founders with education data
Reichman University ×3Tel Aviv University ×2University of Chicago ×2
Where their founders worked beforefrom 13 founders with career history
Convoy Inc ×2Israeli Military Intelligence ×2Unit 8200 - Israeli Intelligence Corps ×2
Investments · 33 tracked
founders shown can be your intro pathBy year:2026 · 42025 · 12024 · 32023 · 12015 · 110 dated
BigPanda delivers agentic AI and automation for IT operations, helping enterprise IT teams detect, triage, and respond to incidents in complex hybrid cloud and modern software environments.
AI & Machine LearningDeveloper ToolsEnterprise SoftwareSaaSMountain View, US
Assaf Resnick(CEO and co-founder)
BoardRobin Vasan(Director)inScott Tobin(Director)inShmuel Levy(Director)
Co-investorsBattery VenturesInsight PartnersSequoia CapitalPelion Venture PartnersWells Fargo Strategic CapitalAkkadian Ventures+4 more
BiotechBrooklyn, US
Brian Longstreet(Executive Officer, Director)Walter Greenblatt(Executive Officer, Director, Promoter)Sue Yao(Director)
BoardOliver Curme(Director)Eric Edidin(Director)
Board seatShay Grinfeld· per SEC Form D · $4M raise · filed Jun 2026
Co-investors83NorthBattery VenturesClaltechVintage Investment Partners
Capitolis provides portfolio optimization and capital marketplace solutions that help banks reduce risk, improve capital efficiency, and access funding.
Enterprise SoftwareFintechNew York, US
Gil Mandelzis(Executive Officer, Director)in
Co-investorsAndreessen HorowitzIndex Ventures9Yards CapitalCanapi VenturesCommunitas Capital PartnersS Capital+1 more
Coralogix provides an AI-native observability platform with a data lake that lets engineering teams ingest, store, and query telemetry (logs, metrics, and traces) across their stack using a unified query language and conversational AI investigation interface.
AI & Machine LearningData & InfrastructureDeveloper Tools
Ariel Assaraf(Founder)inYoni Farin(Founder)in
Co-investors2B.VCAlephBright Pixel CapitalBrighton Park CapitalJoule VenturesLakewest Venture Partners+6 more
Cynet provides enterprise-grade cybersecurity protection designed to be accessible and affordable for mid-market and smaller organizations.
AI & Machine LearningCybersecurityEnterprise Software
Eyal Gruner(Board Director, Founder)
Co-investorsGolub GrowthNorwest Venture PartnersQualcomm VenturesVintage Investment Partners
Silverfort provides a unified identity security platform that protects all identities across cloud and on-premises environments.
AI & Machine LearningCybersecurityEnterprise SoftwareTel Aviv, IL
Hed Kovetz(CEO, Co-Founder)Yaron Kassner(CTO, Co-Founder)inMatan Fattal(Co-Founder)
Co-investorsAcrew CapitalAspect VenturesBrighton Park CapitalEvolution Equity PartnersLumir VenturesOwl Capital+8 more
doubleAI develops Artificial Expert Intelligence (AEI) systems designed to achieve expert-level reasoning and discovery in specific scientific domains, rather than general intelligence.
AI & Machine LearningDeep TechRamat Gan, IL
Amnon Shashua(CEO)Shai Shalev-Shwartz(CTO)Noam WiesOr Sharir
Co-investorsBessemer Venture PartnersBRM CapitalDell Technologies Capital
DustPhotonics develops silicon photonics chips (PICs) and an end-to-end SiPho platform with laser integration and fiber coupling, based on its proprietary L3C laser-attach technology.
Deep TechHardwareSemiconductors
Co-investorsCelesta CapitalCelesta CapitalDeep InsightIntel CapitalKey1 CapitalSienna Venture Capital
Eleos develops AI-powered software that helps behavioral health clinicians deliver more effective care through data measurement and personalization.
AI & Machine LearningDigital HealthHealthtechMental HealthCambridge, US
Alon Joffe(Chief Executive Officer)inDror Zaide(Chief Revenue Officer)inAlon Rabinovich(Chief Technology Officer)inDenny Morrison(Chief Clinical Officer)inRaz Karmi(Chief Information Security Officer)inNoam Cohen(VP of R&D)in
Co-investorsaMoonArkin CapitalF-Prime CapitalLool VenturesMaccabee VenturesMenlo Ventures+2 more
Equitybee operates a stock option funding marketplace that connects startup employees needing to exercise their vested options with accredited investors and managed funds, providing non-recourse financing that covers exercise costs and AMT bills in exchange for a share of exit proceeds.
FintechMarketplacesLos Angeles, US
Oded Golan(Executive Officer, Director)inOren Barziali(Executive Officer, Director)Oren Barzilai(Founder)inArik Moav(Executive Officer, Director)
Co-investorsAltaIR CapitalBattery VenturesGroup 11Quest Venture Partners
Exodigo maps utilities, foundations, and geotechnical conditions beneath infrastructure projects without excavation, using multi-sensor fusion and AI to produce subsurface maps, insights, and visualizations.
AI & Machine LearningConstruction TechDeep Tech
Jeremy Suard(Founder)inOmer HameiriOriel HalvaniIliya KatzIdo Gonen(Founder)in
Co-investors10DAlpha PartnersJibe VenturesNext Legacy PartnersSquare Peg CapitalSuffolk Technologies+3 more
floLIVE is a global IoT network platform built by telecommunications and technology experts that enables intelligent device operations beyond basic connectivity.
Cloud ComputingEnterprise SoftwareIoT
Co-investors83NorthQualcomm VenturesSaban Ventures
Torq is a security orchestration platform that automates phishing investigation and response workflows by connecting email security tools, SIEM systems, threat intelligence platforms, and endpoint tools.
AI & Machine LearningCybersecurityEnterprise SoftwareSaaS
Leonid Belkind(Founder)in
Co-investorsEvolution Equity PartnersInsight PartnersNotable CapitalBessemer Venture PartnersGGV Capital
GoodShip provides a platform for freight transportation procurement and management, unifying systems for RFPs, carrier bidding, and network operations.
AI & Machine LearningEnterprise SoftwareLogistics & Supply ChainSaaSSeattle, US
Ryan Soskin(Co-Founder and CEO)inDavid Tsai(Co-Founder and CTO)inJody Ann Hall(Executive Officer, Director, Promoter)
BoardTy Findley(Director)in
Co-investorsBessemer Venture PartnersFUSEGrid CapitalChicago VenturesIronspring Venture
Mixtiles creates magnetic picture frames and wall art products that can be easily repositioned without damaging walls, featuring museum-quality printing and customizable sizes and materials.
ConsumerE-commerceRetail Tech
Eytan Levit(Founder)in
Co-investors83NorthC4 VenturesKreos Capital
Oligo provides runtime protection for AI systems, defending against exploitation chains created by language models.
AI & Machine LearningCloud ComputingCybersecurityDeveloper ToolsEnterprise Software
GalNadavAvshalom
Co-investorsBallistic VenturesRed Dot Capital PartnersTLV Partners
Panorays provides an AI-powered third-party cyber risk management (TPCRM) platform that gives organizations visibility into their digital supply chain, assessing and continuously monitoring vendors through cyber posture ratings, questionnaires, and external attack surface assessments.
AI & Machine LearningCybersecuritySaaS
Patronus provides a smartwatch and companion app designed for elderly users to enable emergency calling, location tracking, and family connectivity.
Digital HealthHealthtechIoT
Co-investorsBurda Principal InvestmentsCavalry VenturesLightspeed Venture PartnersUVC PartnersFactorial CapitalNotable Capital+2 more
Patronus AI is a frontier research lab building Digital World Models that predict and simulate agent actions in digital workflows to generate large-scale training simulations for frontier AI models.
AI & Machine LearningDeep TechDeveloper ToolsEnterprise SoftwareDublin, US
Anand Kannappan(Cofounder)inRebecca Qian(Cofounder)in
BoardGlenn Solomon(Director)inNnamdi Iregbulem(Director)in
Co-investorsNotable CapitalFactorial CapitalLightspeed Venture PartnersSamsung Ventures
Planck applies data science to serve customers in the insurance industry, delivering data-driven solutions for insurers.
AI & Machine LearningData & InfrastructureFintechInsurTechNew York, US
Co-investorsArbor Ventures
Regulus develops counter-drone (counter-UAS) systems, including GNSS spoofing, AI-powered RF detection, multi-band datalink jamming, and a unified command-and-control platform integrating multiple defense vendors.
AI & Machine LearningDefense TechHardware
Co-investorsDeep InsightF2 Venture Capital
RobCo provides modular, software-defined robotics with no-code workflow programming and digital simulation for configuring and validating industrial automation setups.
Advanced ManufacturingAI & Machine LearningRoboticsMunich, DE
Co-investorsFreigeist CapitalKindred CapitalSequoia CapitalLightspeed Venture Partners
Sett makes nicotine-alternative pouches built around Ceretine, a proprietary synthetic alkaloid combined with L-theanine, intended to provide nicotine-like focus and mood effects with fewer downsides.
ConsumerDirect to ConsumerWellness & Fitness
Co-investorsBreak Trail VenturesJAZZ Venture PartnersService Provider CapitalBessemer Venture PartnersF2 Venture CapitalTIRTA Ventures
Sett offers an AI platform that helps game studios accelerate content creation from concept to finished product, reducing time spent in development cycles and planning phases.
AdTechAI & Machine LearningGaming
Co-investorsBessemer Venture PartnersJAZZ Venture PartnersOpenSky Venturesvgames
TORQ Corporation designs and manufactures centrifugal switches used to control the auxiliary start-winding of single-phase electric motors, supplying these components to motor manufacturers.
Advanced ManufacturingHardware
Co-investorsNotable CapitalRunwayFBU
VAST Data builds a global data platform designed to enable AI agents to store, process, and execute tasks.
AI & Machine LearningCloud ComputingData & InfrastructureNew York City, US
Jeff Denworth(Founder)inRenen Hallak(Founder & CEO)inAlon Horev(Founder)in
Co-investors83NorthAlpha Square GroupAspire11Cats.vcClaltechDrive Capital+14 more
Rows marked “SEC filing” are inferred from directors named on the company's SEC Form D — public regulatory data, not a portfolio list published by the firm.
Portfolio news
latest coverage across their companiesPatronus AI · forbes.com · Jul 20, 2026
Cynet · funderintel.com · Jul 16, 2026
Illuminare Biotechnologies · prnewswire.com · Jul 14, 2026
Eleos Health · mentalyc.com · Jun 30, 2026
Patronus · venturecapital.com · Jun 29, 2026
Coralogix · fintech.global · Jun 4, 2026
Data & Security Early · calcalistech.com · Apr 28, 2026
VAST Data · thenextweb.com · Apr 22, 2026
Frequently asked questions
- How many investments has Greenfield Partners made?
- Greenfield Partners has 30 tracked investments, including 2 dated in the last 24 months.
- What stage does Greenfield Partners invest at?
- Greenfield Partners invests at the Series A, Series B, Series C, Growth, Late Stage stages.
- What sectors does Greenfield Partners focus on?
- Greenfield Partners focuses on AI & Machine Learning, Consumer, Cybersecurity, Data & Infrastructure, Deep Tech, Enterprise Software, Hardware, Robotics, SaaS, Semiconductors.
- Where is Greenfield Partners located?
- Greenfield Partners is headquartered in New York, US.
- Does Greenfield Partners lead rounds?
- Greenfield Partners has led 3 of the 6 rounds where its role is on record.
- Who does Greenfield Partners co-invest with?
- Greenfield Partners most often shares deals with Vintage Investment Partners, 83North, Battery Ventures, among 88 tracked co-investors.
- What size deals does Greenfield Partners back?
- Across 5 deals with disclosed amounts, Greenfield Partners has joined rounds of $30M – $116M (median $50M).
Media · Podcasts & interviews
featuring the teamShay Grinfeld, Greenfield Partners Co-Founder on AI & SaaS Investing
Grace Gong · Shay Grinfeld
What makes a great founder? ft. Avery Schwartz of Greenfield Partners
IsraelTech · Avery Schwartz
Ep 127 - With Shay Grinfeld, Managing Partner at Greenfield Partners
Gali Bloch Liran · Shay Grinfeld
Images
Co-investors · 18
83North is a global venture capital firm that invests in and helps entrepreneurs build large, category-defining companies, backing startups across multiple stages and sectors.
Lightspeed is a global venture capital firm that has spent over two decades backing innovative companies as an early and first investor.
Battery Ventures is a global investment firm that has backed more than 450 companies over its 40-year history, operating its investment staff as a single global unit.
Qualcomm Ventures is the corporate venture investment arm associated with Qualcomm, backing technology companies from early to growth stage across multiple sectors.
StageOne Ventures is an early-stage venture capital firm that backs founders building enterprise and deep-technology companies, having invested across five funds.
TLV Partners is an Israeli early-stage venture capital firm that backs founders from day zero onward across sectors such as AI, cybersecurity, fintech, insurtech, healthcare and quantum computing.
Brighton Park Capital is a growth equity firm that invests in entrepreneur-led companies building innovative and disruptive technology, partnering closely with founding teams.
Acrew Capital is a venture capital firm that emphasizes a team-based approach to investing, offering portfolio companies access to its full team.
Intel Capital is the corporate venture capital arm associated with Intel, investing in and supporting technology companies as they scale.
Dell Technologies Capital (DTC) is the venture investment arm of Dell Technologies, investing in early-stage enterprise technology companies across the U.S., Israel, and Europe.
Ballistic Ventures is a venture capital firm focused exclusively on backing cybersecurity entrepreneurs, drawing on the operating experience of investors who have founded, funded, and operated over 90 companies.
Zeev Ventures is a venture capital investor that backs technology startups, frequently participating from incorporation and seed stages and continuing through later rounds, often taking board seats.
▶6 more co-investors
Liquid VenturesViola VenturesWalden InternationalPitangoWestWave CapitalIsrael Growth Partners
Firms observed investing alongside Greenfield Partners, from public investor directories. Shared companies are the overlap with Greenfield Partners's recorded portfolio.
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