Greentown Labs
Greentown Labs is a 501(c)(3) nonprofit operating the world's largest climatetech incubator, with Boston and Houston campuses housing 250+ member startups that gain access to prototyping labs, corporate sponsors, investor deal flow, and software resources.
- Company typePrivate
- Founded2011
- HeadquartersSomerville, United States
- Headcount11–50
- GTM typeB2B
- OfferingServices
What Greentown Labs does
Greentown Labs is a 501(c)(3) nonprofit climatetech and energy startup incubator founded in 2011 at MIT and headquartered in Somerville, Massachusetts. The organization operates two physical campuses — Boston (444 Somerville Ave, ~100,000 sq ft across three buildings) and Houston (4200 San Jacinto St, 30,000 sq ft within the Ion Innovation District) — that together house more than 250 member companies and provide specialized infrastructure that early-stage climatetech startups cannot cost-effectively procure independently, including prototyping labs, wet labs, machine shops, electronics labs, and outdoor testing space. Since founding, Greentown has supported more than 600 companies that have collectively raised over $8.2 billion in venture capital, with an 89% member-survival rate cited as proof of impact.
The business model combines four revenue streams: tiered corporate partnership subscriptions (Terawatt, Gigawatt, and Megawatt levels with major energy and industrial sponsors); recurring startup membership fees for desk, lab, and bench space (Boston office $650/desk/month, Boston wet lab $3,910/bench/month, Houston office $450/desk/month); donations and grants from foundations, state entities such as MassCEC, and individuals; and open-innovation program fees paid by corporate sponsors who run thematic accelerator tracks (Greentown Go Build, Energize, Grow, Make, Move). Beyond physical space, Greentown sells ecosystem access through its Investor Program, Deal Flow Digests, Mentor-a-Startup matching, the Startup Resources Network providing over $1M in software and service licenses, and signature events including the annual Climatetech Summit.
Greentown's GTM motion is community-led and event-driven: recruitment of startups flows through applications, partner referrals, and ecosystem networks, while engagement is sustained through 350+ annual events, sector pitch days, and partner-hosted office hours. Programs target early-stage climatetech ventures across energy, transportation, buildings, manufacturing, agriculture, and resilience, with corporate partners spanning oil and gas majors (Shell, Chevron, Saudi Aramco, TotalEnergies, Equinor, Enel), technology and engineering firms (Microsoft, GE Vernova, Dassault Systèmes, Emerson, Technip Energies), and foundations (Barr Foundation, Cummings Foundation). Specialized initiatives include the ACCEL accelerator for BIPOC-led startups (with Browning the Green Space), the Carbon to Value Initiative (with NYU Urban Future Lab and Fraunhofer USA), TEX-E with MIT and Rice University, and the First Valley Fellowship. Recent corporate restructuring — including a 30% staff reduction in April 2024 and CEO turnover — was followed by a $4M+ funding round from Massachusetts and Texas partners and the February 2025 appointment of Georgina Campbell Flatter as CEO, signaling operational stabilization entering 2026.
Greentown Labs firmographics
Firmographics- Name
- Greentown Labs
- Legal name
- Greentown Labs
- Website
- https://greentownlabs.com
- Company type
- Private
- Founded year
- 2011
- Operating status
- Operating
- Headcount range
- 11–50 employees
- Short description
- Greentown Labs is a 501(c)(3) nonprofit operating the world's largest climatetech incubator, with Boston and Houston campuses housing 250+ member startups that gain access to prototyping labs, corporate sponsors, investor deal flow, and software resources.
- Ownership category
- akta.pro rank
Greentown Labs industry classification
Industry- Product category
- Climate Technology Incubator
- NAICS
- Business, Professional, Labor, Political, and Similar Organizations (8139), Grantmaking and Giving Services (81321)
- SIC
- Services-Commercial Physical & Biological Research (8731)
- akta.pro primary industry
- Entrepreneurship, Innovation & Venture Creation Centers (EDAHAHAH)
- akta.pro secondary industries
- Corporate Accelerators & Startup Programs (FSANAHAD), Environmental & Climate Grantmaking Foundations (BPAGAKAM)
Keywords
Where Greentown Labs is headquartered
LocationHeadquarters
- HQ city
- Somerville
- HQ country
- United States
- HQ region
- North America
Offices2 records
Markets served
Greentown Labs business model
Business model- GTM type
- B2B
- Offering type
- Services
- Cost components
- Personnel, Operations, Technology or R&D, Marketing or Sales, Infrastructure, Others
Revenue model
- Corporate Partnerships: Greentown Labs generates revenue through tiered corporate partnership programs (Terawatt, Gigawatt, Megawatt levels). Corporate partners pay to access the startup ecosystem, participate in open-innovation programs, and collaborate with member companies on pilot projects and R&D.
- Startup Membership Fees: Climatetech startups pay membership fees to access incubator facilities including lab space, office space, and community resources. Membership pricing varies by location (Boston vs Houston) and space type (office, prototyping lab, wet lab).
- Donations and Grants: As a 501(c)(3) nonprofit, Greentown Labs receives charitable donations and grants from foundations, government entities, and individuals to support its mission. Recent funding includes $4 million from Massachusetts and Texas partners, and $4.95 million from MassCEC for GCELL battery lab development.
- Open-Innovation Program Fees: Greentown Go programs (Go Build, Go Make, Go Energize, Go Grow, Go Move) are run in partnership with corporations who fund the programs to access and accelerate climatetech startups.
Pricing tiers
| Model | Billing | Price |
|---|---|---|
| Subscription | Monthly | Greentown Houston Office Space |
| Unit Pricing | Monthly | Greentown Houston Prototyping Lab Space |
| Subscription | Monthly | Greentown Boston Office Space |
| Unit Pricing | Monthly | Greentown Boston Prototyping Lab Space |
| Subscription | Monthly | Greentown Boston Wet Lab Bench |
Go-to-market motion2 records
Distribution channels3 records
Marketing channels6 records
Greentown Labs product offering
Product offeringCore offering
Greentown Labs operates the world's largest climatetech and energy startup incubator, providing physical infrastructure (wet labs, prototyping labs, machine shops, electronics labs, office space) across its Boston and Houston campuses, alongside open-innovation accelerator programs, mentorship, and curated introductions between member startups, corporate partners, and investors. Its two campuses together house more than 250 active member companies, with member startups collectively raising more than $8.2 billion since 2011. The organization generates revenue through corporate partnerships, startup membership fees, foundation and government grants, and donations.
Product overview
Greentown Labs operates as the world's largest climatetech and energy startup incubator, functioning as a nonprofit accelerator ecosystem rather than a single product company. The organization offers a multi-faceted portfolio consisting of: (1) Physical incubators in Boston (150+ member companies, ~100,000 sq ft) and Houston (100+ member companies, 30,000 sq ft) providing lab space, prototyping facilities, wet labs, and office space; (2) Greentown Go open-innovation accelerator tracks (Go Build for buildings, Go Energize for electricity, Go Grow for agriculture, Go Make for manufacturing, Go Move for transportation) that pair startups with corporate partners; (3) Specialized programs including the ACCEL accelerator for BIPOC-led startups, the Carbon to Value Initiative, First Valley Fellowship, and TEX-E university partnership; (4) Business development services including an Investor Program, mentor matching, and a Startup Resources Network offering over $1M in software licenses; and (5) Annual events including the Climatetech Summit. The integrated ecosystem enables climatetech entrepreneurs to access facilities, mentorship, corporate partnerships, and capital through a single platform.
Differentiator
Problem solved
Functional benefit
Products and services
- Greentown Boston Incubator
- Greentown Houston Incubator
- Greentown Go Build
- Greentown Go Energize
Quantifiable outcome
- 89% of supported startups still in business
- +3 more outcomes
Companies that use Greentown Labs
Customer profileNamed customers10 records
Segments5 records
Ideal customer profiles4 records
Greentown Labs technology and API
TechnologyTechnology focussed No
API detail
- Has API
- No
- API docs
- API detail
Core technology
AI maturity
App detail
Greentown Labs partnerships and signals
Strategic signalPartnerships
30 partnerships are on record, tiered terawatt partner (highest), terawatt partner, gigawatt partner and strategic.
- Amazonterawatt partner (highest)Amazon is a Terawatt Partner at Greentown Labs, collaborating on open-innovation programs including Go Build 2026 focused on CO₂-mineralization technologies for the built environment. The partnership aims to accelerate technological validation and deployment to reduce carbon emissions in construction and Amazon's operations.
- Shell Catalysts & Technologiesterawatt partner (highest)Shell Catalysts & Technologies is a Terawatt Partner running the Go Make open-innovation program focused on catalytic solutions for industrial decarbonization and energy transition. The program provides startups with technical validation, scale-up guidance, and pilot project opportunities.
- Chevronterawatt partnerChevron is a Terawatt Partner at Greentown Labs, engaging with the climatetech startup ecosystem to explore innovations in energy transition and decarbonization technologies.
- Saudi Aramcoterawatt partnerSaudi Aramco (Aramco) is a Terawatt Partner engaging with Greentown's climatetech ecosystem for energy transition and sustainability innovations.
- TotalEnergiesterawatt partnerTotalEnergies is a Terawatt Partner at Greentown Labs, collaborating on climatetech innovation and energy transition initiatives.
- Saint-Gobainterawatt partnerSaint-Gobain is a Terawatt Partner that has collaborated on multiple Go Build programs focused on the built environment and sustainable construction materials.
- Shellterawatt partnerShell is a Terawatt Partner working with Greentown on multiple open-innovation programs including Go Make for catalytic solutions and CO2 utilization technologies.
- Technip Energiesterawatt partnerTechnip Energies partners with Greentown on the Go Make program for catalytic process technologies, providing process engineering expertise for industrial decarbonization startups.
- Onterristerawatt partnerOnterris joined Greentown Labs as a Terawatt Partner (highest-level member) in June 2026, gaining access to 250+ startups and providing technical expertise, mentorship, and commercialization support.
- Fortescueterawatt partnerFortescue is a Terawatt Partner at Greentown Labs, engaging with the climatetech startup ecosystem for energy and sustainability innovations.
- Woodside Energyterawatt partnerWoodside Energy is a Terawatt Partner collaborating on energy transition and climatetech innovation initiatives.
- GE Vernovaterawatt partnerGE Vernova is a Terawatt Partner at Greentown Labs, engaging with climatetech startups in the energy sector.
- BCG (Boston Consulting Group)terawatt partnerBCG is a Terawatt Partner at Greentown Labs, contributing strategic consulting expertise to the climatetech ecosystem.
- Emersonterawatt partnerEmerson is a Terawatt Partner engaging with Greentown's climatetech startup ecosystem.
- Equinorterawatt partnerEquinor is a Terawatt Partner at Greentown Labs, collaborating on energy transition and sustainability innovations.
- Dassault Systèmesterawatt partnerDassault Systèmes provides simulation and 3D design software resources to Greentown startups through the partnership.
- Microsoftgigawatt partnerMicrosoft is a Gigawatt Partner providing software resources including Azure cloud services and Microsoft for Startups programs to Greentown member companies.
- Enelterawatt partnerEnel is a Terawatt Partner engaging with the climatetech startup ecosystem at Greentown Labs.
- Global CO₂ Initiativeterawatt partnerThe Global CO₂ Initiative collaborates with Greentown and Amazon on Go Build 2026 program focused on CO₂ mineralization technologies for decarbonizing the built environment.
- Edison AwardsstrategicGreentown Labs and Edison Awards announced a strategic partnership in October 2025 to support early-stage climate entrepreneurs through collaboration on recognition, resources, and events.
- Browning the Green SpacestrategicBrowning the Green Space partners with Greentown on the ACCEL accelerator program for BIPOC-led climatetech startups, providing funding, mentorship, and resources.
- Urban Future Lab at NYU Tandon School of EngineeringstrategicThe Carbon to Value Initiative is a partnership among Greentown, Urban Future Lab, and Fraunhofer USA combining a partnership accelerator program with access to industry leaders shaping the carbontech marketplace.
- MIT Martin Trust Center for EntrepreneurshipstrategicMIT's Martin Trust Center powers TEX-E (Texas Exchange for Energy and Climate Entrepreneurship), a first-of-a-kind collaboration among local universities to create a student-driven entrepreneurship ecosystem in Texas.
- Vineyard Windterawatt partnerVineyard Wind partnered on Go Energize 2023 focused on offshore wind innovations for responsible offshore wind development.
- Evonikgigawatt partnerEvonik is a Gigawatt Partner engaging with Greentown's climatetech ecosystem on sustainable manufacturing and chemical technologies.
- Cargillgigawatt partnerCargill is a Gigawatt Partner at Greentown Labs engaging with food and agriculture-focused climatetech startups.
- SLB (Schlumberger)gigawatt partnerSLB is a Gigawatt Partner at Greentown Labs, engaging with energy and climate technology startups.
- Marathon Petroleumgigawatt partnerMarathon Petroleum is a Gigawatt Partner engaging with Greentown's climatetech ecosystem.
- M-LabstrategicGreentown and M-Lab ran the Greentown Go x M-Lab 2025 program supporting startups working on grid management and critical-mineral recovery technologies.
- Ion DistrictstrategicThe Ion innovation district in Houston hosts Greentown Houston and collaborates on investor activation programs and ecosystem development.
Scale indicators14 records
Recent moves10 records
Expansion highlights6 records
Greentown Labs competitors and assessment
Company assessmentDirect peers
- Elemental Excelerator: Climate-tech impact accelerator and investor backing startups across energy, mobility, and infrastructure. Closest direct peer to Greentown in mission, member-company support model, and corporate partner program structure.
- Activate (formerly Cyclotron Road): Deep-tech fellowship supporting scientists and engineers commercializing breakthrough technologies in climate, energy, and advanced manufacturing. Highly comparable in fellowship-based incubation and Boston-adjacent positioning (originally founded at Lawrence Berkeley National Lab, now with NYC presence).
- The Engine: MIT-affiliated tough-tech incubator investing in and supporting startups commercializing breakthrough science and engineering. Comparable in MIT ecosystem ties, physical lab infrastructure, and mission-aligned venture support for hard-tech founders.
- Halliburton Labs: Energy-focused accelerator backed by Halliburton, providing capital, lab space, and commercialization support to early-stage energy and climate-tech startups. Directly comparable as a corporate-backed climate/energy tech incubator in Texas.
- New Lab: Innovation hub in Brooklyn providing workspace, prototyping facilities, and venture support to startups in advanced manufacturing, robotics, and climate tech. Comparable as a physical-incubator model for hardware-intensive climate and energy startups.
- Urban Future Lab: NYU Tandon-based cleantech incubator and co-partner with Greentown on the Carbon to Value Initiative. Comparable in cleantech-incubator operations, university affiliation, and corporate partnership programming for carbontech startups.
- MaRS Discovery District: One of North America's largest urban innovation hubs providing workspace, programs, and venture services to cleantech, health, and deep-tech startups. Comparable as a large multi-program innovation center with deep corporate and government relationships.
Emerging players
- URBAN-X: Accelerator for early-stage startups building climate solutions for cities, founded by MINI and Urban Us. Comparable in accelerator structure and climate focus, but narrower urban-tech scope than Greentown's broad climatetech mandate.
Broad incumbents
- Techstars: Global accelerator network running industry-specific programs including sustainability and energy verticals. Comparable as an accelerator operator, but operates at much larger scale and broader stage/market mandate than Greentown's climate-tech specialization.
Others
- Fraunhofer USA: US arm of Germany's applied R&D organization and a co-partner with Greentown on the Carbon to Value Initiative. Comparable as an enabling ecosystem organization providing research infrastructure, technical expertise, and partnership programming to clean-energy startups.
Market position
Strengths5 records
Weaknesses5 records
Competitive moat5 records
Key risks6 records
Key highlights7 records
Customer concentration
Greentown Labs social profiles
Digital presenceGreentown Labs financial estimates
Financial estimateRevenue estimate
Valuation estimate
Greentown Labs leadership team
Management profileNumber of profiles
Profiles10 records
Greentown Labs funding detail
Funding detailFunding overview
Funding rounds7 records
Investors6 records
Funding detail is available on the Subscription and Enterprise plan.Contact sales →
Greentown Labs M&A and investment
M&A and investmentM&A
Investments60 records
M&A and investment is available on the Subscription and Enterprise plan.Contact sales →
Frequently asked questions about Greentown Labs
What does Greentown Labs do?
Greentown Labs operates the world's largest climatetech and energy startup incubator, providing physical infrastructure (wet labs, prototyping labs, machine shops, electronics labs, office space) across its Boston and Houston campuses, alongside open-innovation accelerator programs, mentorship, and curated introductions between member startups, corporate partners, and investors. Its two campuses together house more than 250 active member companies, with member startups collectively raising more than $8.2 billion since 2011. The organization generates revenue through corporate partnerships, startup membership fees, foundation and government grants, and donations.
Is Greentown Labs a public or private company?
Greentown Labs is a private company. It is classified as nonprofit foundation owned and is currently operating.
When was Greentown Labs founded?
Greentown Labs was founded in 2011. It employs 11 to 50 people.
Where is Greentown Labs based?
Greentown Labs is headquartered in Somerville, United States, in the North America region.
How does Greentown Labs make money?
Four revenue lines are on record. Corporate Partnerships are the primary driver. The others are startup Membership Fees, donations and Grants and open-Innovation Program Fees.
Who are Greentown Labs's main competitors?
Direct peers on record are Elemental Excelerator, Activate (formerly Cyclotron Road), The Engine, Halliburton Labs, New Lab, Urban Future Lab and MaRS Discovery District. URBAN-X is listed as an emerging player. Techstars is listed as a broad incumbent. Fraunhofer USA is listed as an others.
Does Greentown Labs have an API?
No public API is recorded for Greentown Labs.
What industry is Greentown Labs in?
Greentown Labs's product category is Climate Technology Incubator. Its primary akta.pro industry code is EDAHAHAH, Entrepreneurship, Innovation & Venture Creation Centers, with a secondary code of FSANAHAD, Corporate Accelerators & Startup Programs. Its NAICS code is 8139 and its SIC code is 8731.