List of energy companies in Connecticut

ITT Inc.itt.com

A global technology company providing cutting-edge solutions in motion technologies, industrial process, and connect and control technologies across various industries worldwide

Eversource Energyeversource.com

A Fortune 500 energy company in New England, prioritizing safety, reliability, environmental leadership, and energy options for millions of customers

Hubbell Incorporatedhubbell.com

Manufacturer of utility and electrical solutions focused on grid modernization, clean energy, electrification, and energy efficiency worldwide.

Avangridavangrid.com

A leading sustainable energy company with a focus on transitioning America to a clean future through its Networks and Renewables businesses

Praxair, Inc - a Linde Companylindeus.com

A global leader in industrial gases and engineering, providing high-quality gases, technologies, and services to diverse markets while promoting sustainability and productivity

Castleton Commodities Internationalcci.com

Energy trading and infrastructure asset investing supported by advanced analytics, fundamental research, and a focus on sustainable, reliable energy.

Viridian International Managementviridian.com

A sustainable lifestyle company providing eco-friendly energy and zero carbon travel opportunities, empowering individuals to do well by doing good

ReneSola Ltd.emeren.com

Global solar project developer and operator with operations in over 10 countries, formerly known as ReneSola Power Ltd, now rebranded as Emeren Group Ltd

FuelCell Energyfuelcellenergy.com

Specializing in efficient, affordable, and clean energy solutions, this company designs, manufactures, and operates megawatt-scale fuel cell systems for utilities and industrial power users worldwide

North American Powernapower.com

The company is a competitive supplier of electricity and natural gas, aiming to simplify the energy experience for customers with innovation and simplicity

Paradigm Precision

Precision manufacturer of gas turbine components for aerospace, marine, and power generation Core capabilities include laser services, precision machining, and innovative manufacturing methods

Budderflybudderfly.com

A leading Energy as a Service company installing patented technologies for businesses to reduce energy costs and carbon footprint

Formerly UIL Holdings (now part of Avangrid)avangrid.com

A diversified energy and utility company with operations in 25 states, including regulated utilities, electricity generation, and natural gas storage

Mitsubishi Power Aeropower.mhi.com

A global leader in providing fast-track power solutions to power producers and industrial customers, specializing in aero-derivative gas turbines and battery storage

Greenskies Clean Focusgreenskies.com

A leading developer and operator of clean, renewable-energy projects in the United States, offering integrated solar and battery-storage solutions to various customers

Crossbridge Energycrossbridge.dk

Global company owning and managing energy infrastructure as it transitions, contributing to the sustainable energy industry on an international scale

Earthlight Technologiesearthlighttech.com

This company specializes in solar and energy efficiency solutions for residential and commercial properties, offering custom solar projects and energy conservation services nationwide

Starion Energystarionenergy.com

A competitive energy supplier providing solutions to residential and business customers in restructured electricity and natural gas markets across 13 states

Santa Energy Corporationsantaenergy.com

A company with nearly 200 employees fulfilling energy needs for commercial, industrial, institutional customers in New England with heating oil, motor fuels, propane, and service

Ion Solar Prosionsolarpros.com

A full service solar energy provider delivering efficient, durable products with customized solutions for producing, storing, and generating revenue Join our global sales team

Lantern Energy LLC & Lantern Electrical LLClanternenergy.com

Offering comprehensive energy solutions for residential and commercial customers in CT and MA, including assessments, smart home setups, insulation, solar panels, EV charging, and electrical contracting

Huntington Powerhuntingtonpower.com

A power systems leader providing products, services, and solutions for emergency, standby, and critical power needs, with expertise in design-build and installation services

Greentech Renewables New York Metrogreentechrenewables.com

Innovating renewable energy solutions with a focus on profitability, customer service, professionalism, and integrity, guided by values of service, integrity, and reliability

Clean Focusgreenskies.com

Offering renewable energy solutions to commercial, public sector, and utility clients nationwide, including solar, battery storage, and low carbon options with integrated financing

Artis Energy Solutionsartisenergysolutions.com

Specializing in EV charging, LED lighting, controls, and HVAC solutions, we create innovative sustainable solutions for organizations aiming for a greener future

URIPP LLCuripp.com

Innovative technology producing hydrogen gas generators for various environments, aiming to expand the use of alternative fuel sources worldwide

Sustainable Innovations LLCsustainableinnov.com

Developing technologies using an electrochemical platform to promote renewable resources, sustainable energy infrastructure, generate hydrogen, store energy, and sequester carbon dioxide

MHR Development, LLCmhrdevelopment.com

Specializing in sustainable energy solutions for buildings and campuses, focusing on renewable sources and energy efficiency

Citrine Power, LLCcitrinepower.com

A renewable energy developer and investor specializing in solar and battery solutions for commercial and public properties, committed to sustainability and community partnerships