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58 Best Connecticut Renewable Energy Companies and Startups - Best Startup US

58 Best Connecticut Renewable Energy Companies and Startups

October 3, 2021
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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

SKYRE

Crunchbase Website Twitter Facebook Linkedin

Skyre converts hydrogen and carbon dioxide into economic opportunities.

Noble Environmental Power

Noble Environmental Power

Crunchbase Website Twitter Facebook Linkedin

Noble Environmental Power is a leading renewable energy company.

Noble Environmental Power

Greenskies Renewable Energy LLC

Crunchbase Website Twitter Facebook Linkedin

Greenskies Renewable Energy is a renewables & environment company providing solar financing and project implementation services.

Noble Environmental Power

Iroquois Gas Transmission System

Crunchbase Website Twitter Facebook Linkedin

Iroquois Gas Transmission System is an oil & energy company that operates the natural gas pipeline.

Noble Environmental Power

Tradition Energy

Crunchbase Website Twitter Facebook Linkedin

Tradition Energy is an oil & energy company offering energy consulting services.

Noble Environmental Power

Thermaxx Jackets

Crunchbase Website Twitter Facebook Linkedin

Thermaxx Jackets was founded over 25 years ago with a single purpose: to save energy .

Noble Environmental Power

Gemma Power Systems

Crunchbase Website Twitter Facebook Linkedin

Gemma Power Systemsis an Engineering, Procurement and Construction company providing solutions for power and renewable energy industry.

Noble Environmental Power

TechniArt Inc.

Crunchbase Website Twitter Facebook Linkedin

TechniArt Inc. is focused on developing and marketing products which involve alternative sources of energy.

Noble Environmental Power

Steven Winter Associates

Crunchbase Website Twitter Facebook Linkedin

Steven Winter Associates is a renewables & environment company offering energy, sustainability, research, and accessibility services.

Noble Environmental Power

Automated Building Systems

Crunchbase Website Twitter Facebook Linkedin

Automated Building Systems provides lighting control, reporting, energy, auditing, grant writing, monitoring & system integration services.

Noble Environmental Power

FuelCell Energy

Crunchbase Website Twitter Facebook Linkedin

FuelCell Energy, Inc. (NASDAQ: FCEL) is an integrated fuel cell company that designs, manufactures, installs, services and operates

Noble Environmental Power

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

Noble Environmental Power

Cadenza Innovation

Crunchbase Website Twitter Facebook Linkedin

Cadenza Innovation provides patented Li-ion battery design and architecture for a license to global manufacturers.

Noble Environmental Power

P2 Science

Crunchbase Website Twitter Facebook Linkedin

P2 Science develops a bio-refining process for the conversion of biomass such as vegetable oils into high-value specialty chemicals.

Noble Environmental Power

Proton Energy Systems

Crunchbase Website Twitter Facebook Linkedin

Proton Energy Systems is a company that provides hydrogen, nitrogen, and zero air generators to labs, and energy production companies.

Noble Environmental Power

Counterpointe Sustainable Real Estate

Crunchbase Website Twitter Facebook Linkedin

CSRE is leading the way in financing energy efficiency, renewables seismic strengthening, storm protection for commercial real estate.

Noble Environmental Power

Winters Bros. Waste Systems

Crunchbase Website Twitter Facebook Linkedin

Winters Bros Waste Systems facilitates collection of waste, recycle and transfer stations in Florida, Vermont, Long Island and Connecticut.

Noble Environmental Power

Source Renewables

Crunchbase Website Twitter Facebook Linkedin

Source Renewables is a clean energy development company that develops community solar and storage projects.

Noble Environmental Power

Connecticut Green Bank

Crunchbase Website Twitter Facebook Linkedin

Connecticut Green Bank is accelerating the growth of green energy for home and building owners across Connecticut.

Noble Environmental Power

Eversource Energy

Crunchbase Website Twitter Facebook Linkedin

Eversource transmits and delivers electricity and natural gas for more than 3.6 million electric and natural gas customers.

Noble Environmental Power

Starwood Energy Group Global

Crunchbase Website Twitter Facebook Linkedin

Starwood Energy Group is a private investment firm based in Greenwich, CT that specializes in energy infrastructure investments.

Noble Environmental Power

New Haven Community Solar

Crunchbase Website Twitter Facebook Linkedin

Clean Cheap Power for Low-Income Housing

Noble Environmental Power

GTherm

Crunchbase Website Twitter Facebook Linkedin

GTherm, Inc. (“GTherm”) is dedicated to the development of environmentally-sound innovations for use in the energy and other markets.

Noble Environmental Power

Pratt & Whitney Power Systems

Crunchbase Website Twitter Facebook Linkedin

PW Power Systems, Inc. (PWPS), formerly Pratt & Whitney® Power Systems and now a subsidiary of Mitsubishi Heavy Industries, Ltd.

Noble Environmental Power

Spot On Networks

Crunchbase Website Twitter Facebook Linkedin

Spot On Networks offers tech platforms that provide wireless broadband internet access to residential users in multifamily dwelling units.

Noble Environmental Power

Kinsley Power Systems

Crunchbase Website Twitter Facebook Linkedin

Kinsley Power Systems is an oil & energy company specializing in energy solutions.

Noble Environmental Power

ATR Energy

Crunchbase Website Twitter Facebook Linkedin

ATR Energy is a high-tech exploration and production company that offers oil drilling services.

Noble Environmental Power

Alteris Renewables

Crunchbase Website Twitter Facebook Linkedin

Alteris Renewables is the largest design-build renewable energy company in the Northeast, with more than 25 megawatts installed for over

Noble Environmental Power

Starion Energy

Crunchbase Website Twitter Facebook Linkedin

Starion Energy is an oil & energy company providing electricity and natural gas supply solutions.

Noble Environmental Power

Palm Energy Systems

Crunchbase Website Twitter Facebook Linkedin

Palm Energy Systems is a Innovative Networked Solar Farms where we Live, Work and Play

Noble Environmental Power

Independent Energy LLC

Crunchbase Website Twitter Facebook Linkedin

Develop and commercialize a zero emission, centrifugal force generator to power 100% off-grid buildings and electric vehicles.

Noble Environmental Power

Earthlight Technologies

Crunchbase Website Twitter Facebook Linkedin

Earthlight is a renewables & environment firm that specializes in solar energy solutions for homes, businesses, and commercial buildings.

Noble Environmental Power

SunEast Development

Crunchbase Website Twitter Facebook Linkedin

SunEast is a privately held clean energy development and management services company.

Noble Environmental Power

Blue Delta Energy

Crunchbase Website Twitter Facebook Linkedin

Blue Delta offers sustainability, renewable and clean energy solutions for various sectors.

Noble Environmental Power

Ashe Morris

Crunchbase Website Twitter Facebook Linkedin

Ashe Morris is developing a new technology that controls the temperature by changing the effective heat transfer area itself.

Noble Environmental Power

Canusa Hershman Recycling

Crunchbase Website Twitter Facebook Linkedin

Canusa Hershman offers a wide array of services designed to help maximize the profitability and effectiveness of the recycling efforts.

Noble Environmental Power

Eastern Gen

Crunchbase Website Twitter Facebook Linkedin

Eastern Gen is a portfolio company that sells capacity, energy & ancillary services in the merchant markets and generates assets accounts.

Noble Environmental Power

US Power Generating Company

Crunchbase Website Twitter Facebook Linkedin

US Power Generating Company is an oil & energy company that generates and sells energy.

Noble Environmental Power

Grove Strategic Ventures

Crunchbase Website Twitter Facebook Linkedin

GSV, Inc. is an oil and gas exploration company.

Noble Environmental Power

MSL Group

Crunchbase Website Twitter Facebook Linkedin

MSL Group handles roof-mounted and ground-mounted solar projects.

Noble Environmental Power

Sound Solar Systems

Crunchbase Website Twitter Facebook Linkedin

A licensed solar energy installer.

Noble Environmental Power

Dr. Energy Saver

Crunchbase Website Twitter Facebook Linkedin

Dr. Energy Saver provides comprehensive home energy audits and a broad range of energy saving services

Noble Environmental Power

IHS Herold

Crunchbase Website Twitter Facebook Linkedin

IHS Herold is an oil & energy company offering research and development services.

Noble Environmental Power

RPM Sustainable Technologies

Crunchbase Website Twitter Facebook Linkedin

Chemical process development company

Noble Environmental Power

Greenwich Energy Solutions

Crunchbase Website Twitter Facebook Linkedin

Greenwich Energy Solutions is one of the premier providers of independent energy solutions.

Noble Environmental Power

CT Energy Ratings

Crunchbase Website Twitter Facebook Linkedin

CT Energy Ratings offers its customers with tools to discover, compare, and order residential and commercial electricity services.

Noble Environmental Power

Energy Research Center

Crunchbase Website Twitter Facebook Linkedin

Energy Research Center, Inc

Noble Environmental Power

Poplar Network

Crunchbase Website Twitter Facebook Linkedin

Poplar is the world’s leading green building network. We connect professionals through LEED and green building education.

Noble Environmental Power

Green Energy Solution Industries Inc

Crunchbase Website Twitter Facebook Linkedin

Green Energy Solutions is a organization that promotes energy efficiency, and has been doing energy saving programs since 1989.

Noble Environmental Power

Greenleaf Biofuels

Crunchbase Website Twitter Facebook Linkedin

Greenleaf Biofuels is a limited liability company formed in 2004 to bring renewable energy alternatives to Americans who value preserving

Noble Environmental Power

Public Power International

Crunchbase Website Twitter Facebook Linkedin

Public Power International is a licensed supplier of electricity and gas in the the United States.

Noble Environmental Power

Renewable Search

Crunchbase Website Twitter Facebook Linkedin

Cleantech executive search firm for the Solar, Wind, Energy Storage, Efficiency, IoT and Smart Grid markets. Retained executive search.

Noble Environmental Power

Honeywell Power Systems

Crunchbase Website Twitter Facebook Linkedin

Honeywell Power Systems is a supplier of power to electronic equipment’s.

Noble Environmental Power

Aterra Energy

Crunchbase Website Twitter Facebook Linkedin

Aterra Energy

Noble Environmental Power

Connecticut Light & Power

Crunchbase Website Twitter Facebook Linkedin

Connecticut Light & Power is a regional utility company providing electricity in New England.

Noble Environmental Power

BNE Energy

Crunchbase Website Twitter Facebook Linkedin

BNE Energy is a company for the purpose of developing wind generation.

Noble Environmental Power

PurePoint Energy

Crunchbase Website Twitter Facebook Linkedin

PurePoint Energy is a solar energy company that provides renewable energy solutions.

Noble Environmental Power

Pampa

Crunchbase Website Twitter Facebook Linkedin

Pampa Corporation offers renewable energy generation, energy conservation, waste management and house development services.

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