Ohio is increasingly recognized for its vibrant renewable energy sector, focusing primarily on solar and wind energy. This industry is characterized by a mix of established companies and innovative startups, all dedicated to sustainable energy solutions. With government support and growing consumer interest in clean energy, companies in Ohio offer a variety of products, including solar panel installations, energy efficiency consulting, and waste heat recovery systems. Anticipated advancements in technology, alongside a nationwide push for carbon neutrality, suggest Ohio's renewable energy market will continue to expand rapidly, attracting investments and creating thousands of jobs over the coming years.

This list highlights 21 prominent renewable energy companies operating in Ohio, ranging in size from small family-owned firms to large corporate entities. Companies such as IGS Energy and TMI Energy Solutions demonstrate a strong commitment to serving both residential and commercial sectors. Established from 1989 to as recently as 2023, each organization offers specialized services, primarily focused on solar energy systems, energy audits, and sustainability consulting. Collectively, they represent a broader trend in Ohio’s commitment to clean energy and technological innovation.

Continue reading to discover top renewable energy companies in Ohio.

Top 21 Renewable Energy Companies in Ohio

1. IGS Energy

• Website: igs.com
• Ownership type: Private
• Headquarters: Dublin, Ohio, United States (USA)
• Employee distribution: United States (USA) 98%, Other 2%
• Founded year: 1989
• Headcount: 1001-5000
• LinkedIn: igs-energy

IGS Energy, based in Dublin, Ohio, is a private energy supplier founded in 1989. The company serves residential, commercial, and industrial customers across multiple states, focusing on reliable and sustainable energy solutions. IGS Energy offers a range of services, including natural gas and electricity supply, alongside solar energy solutions. Their green electricity product offsets all energy usage with renewable energy credits, supporting clean projects like wind and solar. Additionally, IGS Energy provides carbon-neutral natural gas, investing in projects that remove CO2 from the atmosphere. Their solar offerings include both rooftop and community solar options, making clean energy more accessible to their customers. With a workforce of over 1,300 employees, IGS Energy is committed to making clean, reliable, and affordable energy available to everyone.

2. Third Sun Kokosing Solar

• Website: thirdsunsolar.com
• Ownership type: Family Owned
• Headquarters: Athens, Ohio, United States (USA)
• Founded year: 2000
• Headcount: 11-50
• LinkedIn: third-sun-solar-llc

Third Sun Kokosing Solar, based in Athens, Ohio, is a family-owned solar energy provider that has been operational since 2000. The company specializes in renewable energy solutions tailored for both residential and commercial clients. Their offerings include solar panel installations, energy storage systems, and electric vehicle (EV) charging solutions. With over 1,400 projects completed across 14 states, Third Sun Kokosing Solar has demonstrated a solid track record in the solar industry. They are recognized for their consultative approach, ensuring that clients receive customized solutions that meet their specific energy needs. The company is also a member of the Amicus Solar Cooperative, which enhances their purchasing power while maintaining a local business focus. Their mission-driven ethos emphasizes creating jobs in the clean energy sector and fostering sustainable practices within the communities they serve.

3. Kokosing Solar

• Website: kokosingsolar.com
• Ownership type: Family Owned
• Headquarters: Athens, Ohio, United States (USA)
• Employee distribution: United States (USA) 100%
• Founded year: 2000
• Headcount: 1001-5000
• LinkedIn: third-sun-solar-llc

Kokosing Solar, based in Athens, Ohio, is a family-owned solar energy provider that has been serving clients since 2000. The company focuses on delivering renewable energy solutions tailored for both residential and commercial sectors. Their offerings include solar panel installations, energy storage systems, and electric vehicle (EV) charging solutions. With over 1,400 projects completed across 14 states, Kokosing Solar has established itself as a reliable partner for customers looking to transition to sustainable energy sources. The company prides itself on its in-house design capabilities, ensuring that each project is customized to meet specific client needs. Kokosing Solar is also a member of the Amicus Solar Cooperative, which allows them to leverage collective purchasing power while maintaining a personal touch in their service. Their commitment to sustainability is evident in their operational practices, including a carbon-neutral fleet and a goal of zero waste. Kokosing Solar's mission is to create jobs and foster a clean energy future, reflecting their dedication to both community and environmental stewardship.

4. Icon Solar

• Website: iconsolar.com
• Ownership type: Private
• Headquarters: Milford, Ohio, United States (USA)
• Employee distribution: United States (USA) 82%, India 18%
• Founded year: 2009
• Headcount: 11-50
• LinkedIn: icon-solar

Icon Solar, founded in 2009 and based in Milford, Ohio, specializes in solar panel installation for both residential and commercial customers across Ohio, Kentucky, and Indiana. The company provides a comprehensive range of services, including solar panel installation, energy storage solutions, and financing options, aimed at helping clients reduce their energy costs and transition to sustainable energy sources. With a team of 22 employees, Icon Solar prides itself on delivering quality service and products, supported by extended warranties and a commitment to customer satisfaction. They have established themselves as a trusted provider in the solar energy market, actively participating in local events to educate communities about the benefits of solar power. Their focus on customer service and innovative financing solutions makes them a notable player in the renewable energy sector.

5. Accent Energy

• Website: accentenergy.com
• Ownership type: Private
• Headquarters: Dublin, Ohio, United States (USA)
• Founded year: 2002
• Headcount: 11-50
• LinkedIn: accent-energy

Accent Energy, also known as IGS Energy, is an energy solutions provider based in Dublin, Ohio. Founded in 2002, the company has grown to serve both residential and commercial customers. Accent Energy specializes in offering green electricity, which is achieved by offsetting energy usage with renewable energy credits that support projects in wind, solar, and hydro power. They also provide carbon-neutral natural gas, ensuring that their customers' gas usage is offset by investments in carbon-reduction projects. Their solar energy solutions include both rooftop installations and community solar options, making clean energy accessible to a broader audience. Accent Energy's approach is consultative, focusing on understanding customer needs to tailor energy strategies that promote sustainability and cost management.

6. TPI Efficiency

• Website: tpiefficiency.com
• Ownership type: Corporate
• Headquarters: Cleveland, Ohio, United States (USA)
• Employee distribution: United States (USA) 100%
• Latest funding: November 2022
• Founded year: 2009
• Headcount: 11-50
• LinkedIn: tpi-efficiency

TPI Efficiency, founded in 2009 and based in Cleveland, Ohio, is a consulting firm dedicated to energy management and sustainability. With a team of around 60 employees, the company offers a range of services aimed at helping businesses optimize their energy consumption and reduce costs. Their expertise includes electricity and natural gas procurement, energy efficiency consulting, and renewable energy strategies. TPI Efficiency is particularly focused on assisting clients in navigating the complexities of energy markets and implementing sustainable practices. They provide solutions such as EV charging infrastructure, LED lighting upgrades, and comprehensive sustainability consulting. Their commitment to promoting carbon-free energy and renewable sources like solar and wind further underscores their role in the renewable energy sector.

7. Usesol Energia Solar

• Website: usesolbr.com
• Ownership type: Private
• Headquarters: Toledo, Ohio, United States (USA)
• Employee distribution: Brazil 100%
• Founded year: 2014
• Headcount: 11-50
• LinkedIn: usesolbr

Usesol Energia Solar is a private company based in Toledo, Ohio, that specializes in solar energy solutions. Established in 2014, the company offers a range of services including solar energy acquisition, leasing of solar plants, and maintenance. With a workforce of approximately 19 employees, Usesol serves a variety of clients, including residential, commercial, and agricultural sectors, aiming to reduce energy costs and promote sustainable energy practices. The company has adopted a franchise model since 2020, which has enabled it to expand its footprint significantly, with over 30 units operating throughout Brazil. This strategic move not only enhances their market presence but also allows them to empower local entrepreneurs in the renewable energy space. Usesol is committed to sustainability and innovation, as evidenced by their initiatives in energy efficiency and their educational programs through the Universidade Usesol, which aims to develop professionals in the energy sector.

8. Illuminate USA

• Website: illuminateusa.com
• Ownership type: Private
• Headquarters: Pataskala, Ohio, United States (USA)
• Employee distribution: United States (USA) 100%
• Founded year: 2023
• Headcount: 1001-5000
• LinkedIn: illuminate-usa

Illuminate USA, founded in 2023 and based in Pataskala, Ohio, is a solar panel manufacturer specializing in high-efficiency solar panels. The company serves both residential and utility-scale markets, providing renewable energy solutions to meet the increasing demand for clean energy. Illuminate USA is dedicated to onshoring the supply chain, which not only supports local job creation but also enhances the resilience of the U.S. solar industry. Their manufacturing facility is equipped with advanced technology to produce bifacial solar panels, which are known for their efficiency and durability. As of now, the company has not reported any funding, but it has quickly established itself as a significant player in the solar manufacturing sector, with plans to produce over 9 million panels annually by the end of 2024. This output is expected to power approximately 1 million homes, showcasing their potential impact on the renewable energy market.

9. Melink Solar

• Website: melinksolar.com
• Ownership type: Private
• Headquarters: Milford, Ohio, United States (USA)
• Employee distribution: United States (USA) 100%
• Founded year: 2009
• Headcount: 11-50
• LinkedIn: melink-solar

Melink Solar, founded in 2009 and based in Milford, Ohio, is a private company that specializes in the design and installation of commercial solar power systems. With a dedicated team of approximately 34 employees, the company offers a full suite of services, including system design, engineering, procurement, and construction. Melink Solar serves a variety of sectors, such as commercial and industrial businesses, municipalities, non-profit organizations, schools, and religious institutions. Their mission is to promote sustainability while helping clients reduce energy costs. Since its inception, Melink Solar has installed over 100 megawatts of solar capacity, contributing to the avoidance of significant carbon emissions. The company emphasizes a commitment to net-zero energy buildings and provides innovative solar solutions tailored to the specific needs of their clients. Their extensive project portfolio showcases their capabilities in delivering effective solar energy solutions across the United States.

10. Go Sustainable Energy, LLC

• Website: gosustainableenergy.com
• Ownership type: Private
• Headquarters: Worthington, Ohio, United States (USA)
• Employee distribution: United States (USA) 100%
• Founded year: 2006
• Headcount: 11-50
• LinkedIn: go-sustainable-energy-llc

Go Sustainable Energy, LLC, based in Worthington, Ohio, is an energy consulting firm founded in 2006. With a team of 31 employees, the company specializes in sustainable energy and energy efficiency. They provide a range of services including energy audits, commissioning, and renewable energy consulting. Their approach is rooted in delivering accurate and unbiased information, allowing clients to make informed decisions about their energy management practices. Go Sustainable Energy acts as a technical strategist for businesses and organizations, helping them identify opportunities for energy savings and sustainability. Their project portfolio includes collaborations with various sectors, such as municipal utilities, educational institutions, and commercial enterprises, showcasing their commitment to advancing energy efficiency and renewable energy solutions.

11. Gould Group

• Website: gouldgrp.com
• Ownership type: Private
• Headquarters: Westerville, Ohio, United States (USA)
• Employee distribution: United States (USA) 100%
• Founded year: 2012
• Headcount: 11-50
• LinkedIn: gould-group

Gould Group, founded in 2012 and based in Westerville, Ohio, is a private consulting firm dedicated to energy efficiency and renewable energy solutions. With a team of 11-50 employees, they provide a range of services tailored to real estate portfolio owners and operators. Their expertise includes solar project management, energy efficiency consulting, and strategic energy procurement. Gould Group aims to help clients optimize their energy usage, turning wasted energy into positive financial outcomes. They operate across the United States, focusing on various sectors such as industrial, office, retail, hospitality, and multifamily properties. Their proprietary tools, like the Global Portfolio Plan™ and Portfolio Maximizer™, are designed to enhance project visibility and performance. The company emphasizes its role as a trusted advisor, ensuring budget, quality, and execution certainty for its clients. Their commitment to renewable energy is evident in their project management capabilities and their focus on sustainable practices.

12. Solar Power & Light

• Website: splsolar.com
• Ownership type: Private
• Headquarters: Miamisburg, Ohio, United States (USA)
• Employee distribution: United States (USA) 86%, Myanmar 14%
• Founded year: 2010
• Headcount: 11-50
• LinkedIn: solar-power-%26-light

Solar Power & Light, LLC, based in Miamisburg, Ohio, is a private company that specializes in solar energy solutions. Since its inception in 2010, the firm has focused on providing comprehensive services, including solar panel installation, battery backup systems, and ongoing maintenance for both residential and commercial clients. With a mission to help customers reduce energy costs and meet sustainability objectives, Solar Power & Light has developed a reputation for innovative solar technologies. The company manages over 100 MW of solar projects and has a significant presence in the Ohio region, operating around 7 MW of commercial solar assets. Their SunCare services ensure that solar systems operate at peak efficiency, reflecting their commitment to customer satisfaction and long-term performance. With a team that boasts over 90 years of combined engineering experience, Solar Power & Light is well-equipped to navigate the complexities of the solar industry and provide tailored solutions to its clients.

13. Sky Climber Renewables

• Website: skyclimber-re.com
• Ownership type: Private
• Headquarters: Delaware, Ohio, United States (USA)
• Employee distribution: United States (USA) 95%, Canada 5%
• Founded year: 2007
• Headcount: 501-1000
• LinkedIn: sky-climber-wind-solutions

Sky Climber Renewables, based in Delaware, Ohio, is a private company that specializes in renewable energy services, particularly in wind, solar, and energy storage. Established in 2007, the company has evolved from its origins in wind turbine access solutions to become a comprehensive service provider for utility-scale energy projects. They offer a wide range of services, including installation, maintenance, and training, tailored to meet the needs of energy companies and asset owners. With a workforce of approximately 700 employees, Sky Climber is dedicated to delivering high-quality operational support across the United States and Canada. Their commitment to safety and technical training is underscored by their certification as a Global Wind Organization (GWO) training provider, ensuring that their technicians are well-equipped to handle the complexities of renewable energy projects. Sky Climber Renewables has completed over 320 projects annually, showcasing their active role in the industry and their focus on sustainable energy solutions.

14. Echogen Power Systems

• Website: echogen.com
• Ownership type: Venture Capital
• Headquarters: Akron, Ohio, United States (USA)
• Employee distribution: United States (USA) 100%
• Latest funding: Other (Grant), $1.0M, July 2017
• Founded year: 2007
• Headcount: 11-50
• LinkedIn: echogen-power-systems

Echogen Power Systems, based in Akron, Ohio, is an energy solutions provider that specializes in waste heat recovery and energy storage technologies. Founded in 2007, the company has developed innovative products like the EPS100 heat engine, which is designed to convert waste heat into usable power. Their engineering services cater to various sectors, including manufacturing and oil & gas, helping businesses enhance energy efficiency and reduce operational costs. Echogen's technology utilizes supercritical carbon dioxide (sCO2) as a working fluid, allowing for a compact and efficient thermal engine. The company has received funding, including a $1 million grant from the U.S. Department of Energy's SunShot Initiative, to develop a novel solar thermal energy storage and power system. This project aims to make solar energy more accessible and affordable, further solidifying Echogen's role in the renewable energy industry.

15. Superior Energy Solutions

• Website: senergys.com
• Ownership type: Private
• Headquarters: Kalida, Ohio, United States (USA)
• Employee distribution: United States (USA) 100%
• Founded year: 2009
• Headcount: 11-50
• LinkedIn: superior-energy-solutions-llc

Superior Energy Solutions, based in Kalida, Ohio, was founded in 2009 by Daniel Klear, who has a rich background in industrial engineering and a long-standing passion for solar energy. The company specializes in providing solar energy solutions tailored to the needs of residential, commercial, and agricultural customers. Their services include conducting energy audits, managing the installation of solar systems, and guiding clients through financing options and available incentives. With operations primarily in Ohio, Michigan, Indiana, and Florida, Superior Energy Solutions aims to facilitate the transition to renewable energy for its clients, helping them to lower their energy costs and contribute to environmental sustainability. The company has recently undergone a change in ownership but continues to operate with a focus on customer relationships and service excellence, positioning itself as a significant player in the solar energy market.

16. YellowLite

• Website: yellowlite.com
• Ownership type: Private
• Headquarters: Cleveland, Ohio, United States (USA)
• Employee distribution: United States (USA) 84%, Pakistan 16%
• Founded year: 2009
• Headcount: 11-50
• LinkedIn: yellowlite-inc

YellowLite, based in Cleveland, Ohio, is a private solar energy company founded in 2009. With a workforce of approximately 31 employees, the company focuses on providing solar panel installation and maintenance services tailored to the needs of residential, commercial, and agricultural clients. YellowLite aims to help customers reduce their energy costs and environmental footprint through customized solar solutions. They offer a range of services, including solar financing and energy storage solutions, and operate across several states, including Ohio, Illinois, Michigan, New York, Pennsylvania, Indiana, Kentucky, West Virginia, and Virginia. The company has completed over 2,000 installations, showcasing their experience and commitment to the solar energy sector. YellowLite's approach includes a comprehensive installation process, ensuring that clients receive a thorough consultation and support throughout their solar journey.

17. TMI Energy Solutions

• Website: tmielectric.com
• Ownership type: Private
• Headquarters: Cincinnati, Ohio, United States (USA)
• Employee distribution: United States (USA) 100%
• Founded year: 1987
• Headcount: 11-50
• LinkedIn: advanced-solar-technologies-inc.

TMI Energy Solutions, based in Cincinnati, Ohio, is a private solar energy company founded in 1987. With a workforce of 11-50 employees, TMI specializes in the engineering, procurement, construction, and management of solar energy systems. The company has installed over 76 MW of solar capacity, catering to a variety of clients, including commercial, industrial, non-profit, and governmental entities. TMI offers a comprehensive range of services, from project development and design to installation and ongoing maintenance. Their expertise extends to electric vehicle charging solutions, further enhancing their portfolio in the renewable energy sector. TMI's commitment to sustainability is evident in their approach to project management, ensuring that clients can effectively meet their energy needs while minimizing environmental impact. The company is recognized for its strong presence in the Midwest, particularly in Ohio, where it has been acknowledged as the top solar contractor. TMI Energy Solutions continues to play a crucial role in advancing solar energy adoption and supporting clients in achieving their sustainability objectives.

18. TGE Solutions

• Website: tgesolar.com
• Ownership type: Family Owned
• Headquarters: Cincinnati, Ohio, United States (USA)
• Employee distribution: United States (USA) 100%
• Founded year: 2022
• Headcount: 11-50
• LinkedIn: tgesolar

TGE Solutions, operating under the brand TGE Solar, is a family-owned solar energy provider based in Cincinnati, Ohio. Founded in 2022, the company specializes in solar panel installations and energy consulting services. TGE Solar aims to assist homeowners and businesses in reducing their energy costs and environmental impact through tailored renewable energy solutions. The company prides itself on a transparent process, ensuring that clients are well-informed and satisfied throughout their solar journey. With a team that boasts extensive experience in the solar industry, TGE Solar is dedicated to making solar energy accessible and beneficial for its customers. The firm operates in several states, including Ohio, Kentucky, Idaho, and Washington, and has built a reputation for its customer-first approach, which is reflected in its positive reviews and high ratings. TGE Solar is also notable for its commitment to community engagement, supporting local initiatives and fostering relationships within the areas it serves.

19. quasar energy group

• Website: quasareg.com
• Ownership type: Private
• Headquarters: Cleveland, Ohio, United States (USA)
• Employee distribution: United States (USA) 100%
• Founded year: 2006
• Headcount: 51-200
• LinkedIn: quasar-energy-group

Quasar Energy Group, founded in 2006 and based in Cleveland, Ohio, is a private company dedicated to advancing renewable energy through innovative biomass management and anaerobic digestion systems. The firm specializes in helping agricultural businesses and municipalities effectively manage organic waste, transforming it into renewable energy. Their service offerings include digester design and build, laboratory services, nutrient management, and transportation services, all aimed at promoting sustainability and efficient waste management practices. Quasar's expertise in anaerobic digestion not only aids in waste reduction but also contributes to energy generation, making them a key player in the renewable energy sector. The company is staffed by a team of professionals with extensive experience in bioenergy and engineering, further solidifying its position in the industry.

20. RBI Solar Inc.

• Website: rbisolar.com
• Ownership type: Private
• Headquarters: Cincinnati, Ohio, United States (USA)
• Employee distribution: Japan 100%
• Founded year: 2009
• Headcount: 51-200
• LinkedIn: rbisolarinc

RBI Solar Inc., based in Cincinnati, Ohio, is a private company founded in 2009 that specializes in solar technology. Operating under the brand Terrasmart, the company provides a range of solar solutions, including advanced solar trackers and fixed-tilt racking systems. These products are engineered to perform effectively in various terrains and weather conditions, catering to the needs of businesses and organizations in the renewable energy sector. RBI Solar Inc. emphasizes simplifying the implementation of solar projects through innovative designs and engineering expertise. With a workforce of approximately 87 employees, the company has established a reputation for reliability and performance in the solar industry, having contributed to over 19 GW of installed capacity. Their focus on customer collaboration and project execution further underscores their role in advancing solar energy solutions.

21. World Energy Innovations, LLC

• Website: worldenergyinnovations.com
• Ownership type: Private
• Headquarters: Fremont, Ohio, United States (USA)
• Employee distribution: United States (USA) 100%
• Founded year: 1979
• Headcount: 11-50
• LinkedIn: worthington-energy-innovations-llc

World Energy Innovations, LLC, based in Fremont, Ohio, has been a player in the energy efficiency sector since its founding in 1979. The company specializes in consulting services that help businesses optimize their energy use, reduce costs, and minimize their carbon footprints. Their offerings include energy assessments, system design and build, monitoring and verification, and innovative lighting solutions. They have worked with major corporations across various sectors, including automotive, healthcare, and food manufacturing, to implement energy conservation measures that lead to significant savings and sustainability improvements. Their commitment to energy efficiency is evident in their case studies, which showcase successful projects with clients like Ford Motor Company and General Motors. World Energy Innovations positions itself as a technology firm and solutions provider, focusing on long-term partnerships to deliver sustainable energy solutions. They emphasize a holistic approach to energy management, ensuring that their systems not only meet current needs but also adapt to future challenges in energy consumption.

Renewable Energy Insights: Key Companies in Ohio

Want to Find More Renewable Energy Companies?

With Inven you'll also get to know the company's:

• Detailed Ownership: Who owns the company? Is it a public or private company? What is the ownership structure?
• Contact data: Who are the founders and CEO's? What are their emails and phone numbers?
• Financials: How do these companies perform financially? What are their revenues and profit margins?

...and a lot more!