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 3, 2026.
Team · 23 people
from the firm's website & public directories
What they invest in
from 24 of 33 portfolio companiesAI & Machine Learning ×15Enterprise Software ×10Cybersecurity ×5Cloud Computing ×4Deep Tech ×3Developer Tools ×3SaaS ×3Advanced Manufacturing ×2
HQs:United States×9Germany×2Israel×1
Investments · 33 tracked
founders shown can be your intro pathBigPanda 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)Shmuel Levy(Director)Robin Vasan(Director)
BoardScott Tobin(Director)
BiotechBrooklyn, US
Oliver Curme(Director)Walter Greenblatt(Executive Officer, Director, Promoter)Eric Edidin(Director)Brian Longstreet(Executive Officer, Director)Shay Grinfeld(Director, Promoter)Robert Graifman(Director, Promoter)
Board seatShay Grinfeld· per SEC Form D · $4M raise · filed Jun 2026
Avanan provides AI-powered email and collaboration security for enterprise companies, powered by Check Point's threat detection engines.
AI & Machine LearningCybersecurityEnterprise Software
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
Eleos develops AI-powered software that helps behavioral health clinicians deliver more effective care through data measurement and personalization.
AI & Machine LearningDigital HealthHealthtechMental Health
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
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)Oren Barziali(Executive Officer, Director)Arik Moav(Executive Officer, Director)
Exodigo uses advanced multi-sensor fusion, AI, and geophysics to uncover utilities, foundations, and geotechnical conditions beneath infrastructure projects without excavation, delivering subsurface intelligence for planning and construction.
AI & Machine LearningConstruction TechDeep Tech
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)Ty Findley(Director)
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
Patronus provides a smartwatch and companion app designed for elderly users to enable emergency calling, location tracking, and family connectivity.
Digital HealthHealthtechIoTUnknown, DE
Dublin, US
Anand Kannappan(Cofounder)Rebecca Qian(Cofounder)Glenn Solomon(Director)Nnamdi Iregbulem(Director)
Robotics company centered on software and AI.
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)Matan Fattal(Co-Founder)
TORQ designs and manufactures centrifugal switching mechanisms, including Syncrosnap centrifugal switches that control the start-winding of single-phase electric motors, along with Speedetex speed switches and motor and switch replacement parts.
Advanced ManufacturingHardware
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.
Frequently asked questions
- 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.
Media · Podcasts & interviews
featuring the teamShay Grinfeld, Greenfield Partners Co-Founder on AI & SaaS Investing
Grace Gong · Shay Grinfeld
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-leading companies across Europe, Israel, and the US.
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.
Lightspeed Venture Partners is a global venture capital firm known for backing AI and technology founders, emphasizing deep, hands-on partnerships with the companies it funds.
Battery Ventures is a global investment firm that has backed more than 450 companies over its 40-year history, with a team operating as a single global unit and offering focused support services in talent, business development, marketing/communications, and growth/leadership.
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.
Brighton Park Capital is a growth equity firm that invests in entrepreneur-led companies building innovative and disruptive technology, partnering closely with founding teams.
▶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.
Similar investors
Ultratech Capital Partners is an early-stage investor focused on critical technology essential to defense, infrastructure, energy security and supply chain sovereignty across Europe and the United States.
DCVC (Data Collective) is a venture capital firm that backs founders building companies which apply technology to major challenges across areas such as energy, biotech, agriculture, and machine learning.
GV (formerly Google Ventures) is a venture investment firm that backs founders across many industries, aiming to build long-term relationships and support companies across multiple stages and milestones.
A globally recognized venture capital firm designed to provide access to highly competitive venture deals to individual investors, consistently recognized for top-decile DPI performance and as one of the most active US venture firms.
Industrial Technology Investment Corporation is the venture capital arm of Taiwan's Industrial Technology Research Institute (ITRI), backing startups across multiple stages and sectors while providing access to ITRI's R&D resources.