Mark Smith
This article showcases our top picks for the best Connecticut based Renewable Energy companies. These startups and companies are taking a variety of approaches to innovating the Renewable Energy industry, but are all exceptional companies well worth a follow.
We tried to pick companies across the size spectrum from cutting edge startups to established brands.
We selected these startups and companies for exceptional performance in one of these categories:
- Innovation
- Innovative ideas
- Innovative route to market
- Innovative product
- Growth
- Exceptional growth
- Exceptional growth strategy
- Management
- Societal impact
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Top Connecticut Renewable Energy Startups
Data sourced from Crunchbase and SemRush.
SKYRE
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Skyre converts hydrogen and carbon dioxide into economic opportunities.
Noble Environmental Power
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Noble Environmental Power is a leading renewable energy company.
Greenskies Renewable Energy LLC
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Greenskies Renewable Energy is a renewables & environment company providing solar financing and project implementation services.
Iroquois Gas Transmission System
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Iroquois Gas Transmission System is an oil & energy company that operates the natural gas pipeline.
Tradition Energy
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Tradition Energy is an oil & energy company offering energy consulting services.
Thermaxx Jackets
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Thermaxx Jackets was founded over 25 years ago with a single purpose: to save energy .
Gemma Power Systems
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Gemma Power Systemsis an Engineering, Procurement and Construction company providing solutions for power and renewable energy industry.
TechniArt Inc.
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TechniArt Inc. is focused on developing and marketing products which involve alternative sources of energy.
Steven Winter Associates
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Steven Winter Associates is a renewables & environment company offering energy, sustainability, research, and accessibility services.
Automated Building Systems
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Automated Building Systems provides lighting control, reporting, energy, auditing, grant writing, monitoring & system integration services.
FuelCell Energy
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FuelCell Energy, Inc. (NASDAQ: FCEL) is an integrated fuel cell company that designs, manufactures, installs, services and operates
Altus Power America
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Altus Power America Management is a leader in private investment in clean energy projects and renewable energy certificates
Cadenza Innovation
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Cadenza Innovation provides patented Li-ion battery design and architecture for a license to global manufacturers.
P2 Science
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P2 Science develops a bio-refining process for the conversion of biomass such as vegetable oils into high-value specialty chemicals.
Proton Energy Systems
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Proton Energy Systems is a company that provides hydrogen, nitrogen, and zero air generators to labs, and energy production companies.
Counterpointe Sustainable Real Estate
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CSRE is leading the way in financing energy efficiency, renewables seismic strengthening, storm protection for commercial real estate.
Winters Bros. Waste Systems
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Winters Bros Waste Systems facilitates collection of waste, recycle and transfer stations in Florida, Vermont, Long Island and Connecticut.
Source Renewables
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Source Renewables is a clean energy development company that develops community solar and storage projects.
Connecticut Green Bank
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Connecticut Green Bank is accelerating the growth of green energy for home and building owners across Connecticut.
Eversource Energy
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Eversource transmits and delivers electricity and natural gas for more than 3.6 million electric and natural gas customers.
Starwood Energy Group Global
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Starwood Energy Group is a private investment firm based in Greenwich, CT that specializes in energy infrastructure investments.
New Haven Community Solar
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Clean Cheap Power for Low-Income Housing
GTherm
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GTherm, Inc. (“GTherm”) is dedicated to the development of environmentally-sound innovations for use in the energy and other markets.
Pratt & Whitney Power Systems
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PW Power Systems, Inc. (PWPS), formerly Pratt & Whitney® Power Systems and now a subsidiary of Mitsubishi Heavy Industries, Ltd.
Spot On Networks
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Spot On Networks offers tech platforms that provide wireless broadband internet access to residential users in multifamily dwelling units.
Kinsley Power Systems
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Kinsley Power Systems is an oil & energy company specializing in energy solutions.
ATR Energy
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ATR Energy is a high-tech exploration and production company that offers oil drilling services.
Alteris Renewables
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Alteris Renewables is the largest design-build renewable energy company in the Northeast, with more than 25 megawatts installed for over
Starion Energy
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Starion Energy is an oil & energy company providing electricity and natural gas supply solutions.
Palm Energy Systems
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Palm Energy Systems is a Innovative Networked Solar Farms where we Live, Work and Play
Independent Energy LLC
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Develop and commercialize a zero emission, centrifugal force generator to power 100% off-grid buildings and electric vehicles.
Earthlight Technologies
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Earthlight is a renewables & environment firm that specializes in solar energy solutions for homes, businesses, and commercial buildings.
SunEast Development
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SunEast is a privately held clean energy development and management services company.
Blue Delta Energy
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Blue Delta offers sustainability, renewable and clean energy solutions for various sectors.
Ashe Morris
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Ashe Morris is developing a new technology that controls the temperature by changing the effective heat transfer area itself.
Canusa Hershman Recycling
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Canusa Hershman offers a wide array of services designed to help maximize the profitability and effectiveness of the recycling efforts.
Eastern Gen
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Eastern Gen is a portfolio company that sells capacity, energy & ancillary services in the merchant markets and generates assets accounts.
US Power Generating Company
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US Power Generating Company is an oil & energy company that generates and sells energy.
Grove Strategic Ventures
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GSV, Inc. is an oil and gas exploration company.
MSL Group
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MSL Group handles roof-mounted and ground-mounted solar projects.
Dr. Energy Saver
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Dr. Energy Saver provides comprehensive home energy audits and a broad range of energy saving services
IHS Herold
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IHS Herold is an oil & energy company offering research and development services.
RPM Sustainable Technologies
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Chemical process development company
Greenwich Energy Solutions
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Greenwich Energy Solutions is one of the premier providers of independent energy solutions.
CT Energy Ratings
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CT Energy Ratings offers its customers with tools to discover, compare, and order residential and commercial electricity services.
Poplar Network
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Poplar is the world’s leading green building network. We connect professionals through LEED and green building education.
Green Energy Solution Industries Inc
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Green Energy Solutions is a organization that promotes energy efficiency, and has been doing energy saving programs since 1989.
Greenleaf Biofuels
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Greenleaf Biofuels is a limited liability company formed in 2004 to bring renewable energy alternatives to Americans who value preserving
Public Power International
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Public Power International is a licensed supplier of electricity and gas in the the United States.
Renewable Search
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Cleantech executive search firm for the Solar, Wind, Energy Storage, Efficiency, IoT and Smart Grid markets. Retained executive search.
Honeywell Power Systems
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Honeywell Power Systems is a supplier of power to electronic equipment’s.
Connecticut Light & Power
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Connecticut Light & Power is a regional utility company providing electricity in New England.
BNE Energy
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BNE Energy is a company for the purpose of developing wind generation.
PurePoint Energy
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PurePoint Energy is a solar energy company that provides renewable energy solutions.
Pampa
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Pampa Corporation offers renewable energy generation, energy conservation, waste management and house development services.
