The energy efficiency industry in Indiana focuses on reducing energy consumption while maximizing sustainability, ensuring environmental responsibility. Companies in this space include manufacturers of energy-efficient systems, consultants providing optimization services, and installation firms specializing in renewable technologies. With advancements in smart technologies and an increasing regulatory emphasis on sustainability, the sector is poised for growth. Reports indicate that sectors like HVAC, building automation, and renewable energy systems are becoming increasingly important. Consumers and businesses alike are keenly interested in cutting energy costs, making innovative solutions vital for profit and progress in Indiana's energy industry.


This list showcases 20 notable energy efficiency companies in Indiana, featuring a blend of small and mid-sized enterprises. With headquarters scattered across cities like Indianapolis, Carmel, and Fort Wayne, these firms vary in age and specialization. Ranging from HVAC solutions to energy consulting services, most have been founded in the last four decades. While some like Energy Systems Group were launched in the '90s, others, such as Climate Makers Inc., have roots dating back to the late '70s. These companies not only promote energy savings but also foster sustainability within various sectors.


Read on for insights about Indiana's top energy efficiency companies.


Top 20 Energy Efficiency Companies in Indiana


1. Energy Systems Group (ESG)

  • Website: energysystemsgroup.com
  • Ownership type: Private Equity
  • Headquarters: Newburgh, Indiana, United States (USA)
  • Employee distribution: United States (USA) 98%, Other 2%
  • Latest funding: July 2023
  • Founded year: 1994
  • Headcount: 201-500
  • LinkedIn: energy-systems-group

Energy Systems Group (ESG), founded in 1994 and based in Newburgh, Indiana, is a private equity-backed energy service company. With a workforce of approximately 390 employees, ESG specializes in delivering energy efficiency, sustainability, and electrification solutions across multiple sectors, including healthcare, education, and government. The company is dedicated to helping clients reduce energy costs and enhance operational efficiency through tailored infrastructure improvements and consulting services. ESG's portfolio includes a wide range of services such as water conservation, building automation, retrocommissioning, and HVAC optimization. They have successfully saved over 4.8 million megawatt hours of energy, translating to significant reductions in carbon emissions and operational costs for their clients. ESG operates primarily in the United States, leveraging a team of experts to provide comprehensive energy solutions that address the unique needs of each client.


2. Skill Demand

  • Website: skilldemand.com
  • Ownership type: Private
  • Headquarters: Carmel, Indiana, United States (USA)
  • Employee distribution: United States (USA) 66%, India 34%
  • Founded year: 2015
  • Headcount: 501-1000
  • LinkedIn: skilldemand

Skill Demand Energy, founded in 2015 and based in Carmel, Indiana, is a consulting firm dedicated to providing energy efficiency solutions. The company works closely with utility companies and their customers to design, implement, and verify energy efficiency programs. Their services range from conducting energy audits to managing customer engagement initiatives, all aimed at reducing energy costs and enhancing efficiency. Skill Demand Energy serves a variety of sectors, including residential, commercial, and industrial, and has a strong focus on educating consumers about energy savings. With a team of experienced professionals, they strive to deliver tailored solutions that meet the specific needs of their clients. The company is also recognized as a nationally certified minority-owned business, which adds to its credibility in the industry.


3. Climate Makers Inc

  • Website: climatemakersinc.com
  • Ownership type: Private
  • Headquarters: Peru, Indiana, United States (USA)
  • Employee distribution: United States (USA) 100%
  • Founded year: 1978
  • Headcount: 1-10
  • LinkedIn: climate-makers-inc

Climate Makers Inc, founded in 1978 and based in Peru, Indiana, is a private company that specializes in HVAC and building automation solutions. With a small team of around 19 employees, the company has carved out a niche in providing energy management services, preventative maintenance, and mechanical construction for various businesses and organizations. Their focus on enhancing indoor air quality and energy efficiency is evident in their Climate Care program, which offers clients a digital dashboard to monitor and manage energy consumption effectively. This program not only tracks energy usage but also provides insights for future investments to improve building performance. Climate Makers Inc prides itself on delivering reliable service and innovative technology, ensuring that their clients can maintain comfortable and efficient environments.


4. WaterFurnace International

  • Website: waterfurnace.com
  • Ownership type: Corporate
  • Headquarters: Fort Wayne, Indiana, United States (USA)
  • Employee distribution: United States (USA) 99%, Other 1%
  • Latest funding: June 2014
  • Founded year: 1983
  • Headcount: 201-500
  • LinkedIn: waterfurnace-international

WaterFurnace International, based in Fort Wayne, Indiana, has been a player in the geothermal heating and cooling industry since its founding in 1983. The company specializes in manufacturing geothermal heat pumps, which utilize the earth's natural energy to provide efficient heating and cooling solutions for homes and businesses. WaterFurnace emphasizes the cost-effectiveness and comfort of its systems, making them appealing to a wide range of customers. The company operates through a network of dealers, ensuring that their products are accessible to both residential and commercial clients. WaterFurnace also actively engages in educating potential customers about the benefits of geothermal systems, including significant energy savings and available tax incentives. Their commitment to energy efficiency is evident in their product offerings and their advocacy for policies that support the adoption of renewable energy technologies.


5. Apex Energy Solutions

  • Website: apexenergygroup.com
  • Ownership type: Corporate
  • Headquarters: Zionsville, Indiana, United States (USA)
  • Employee distribution: United States (USA) 100%
  • Latest funding: November 2020
  • Founded year: 1999
  • Headcount: 51-200
  • LinkedIn: apex-energy-group

Apex Energy Solutions, founded in 1999 and based in Zionsville, Indiana, is a home improvement company that specializes in energy-efficient replacement windows and building products. With a workforce of 51-200 employees, the company primarily serves homeowners looking to enhance their home's energy efficiency and comfort. Apex employs a direct marketing strategy, which includes innovative programs like the Flipside™ campaign and a Thermal Imaging Program to assess home energy performance. Their flagship product, the Insignia window system, is designed to significantly reduce heating and cooling costs, making it a valuable solution for energy-conscious consumers. Apex has been recognized for its rapid growth and innovative approach, having made the Inc. 5000 list of America's fastest-growing companies. The company operates across multiple states, providing a wide reach to homeowners seeking energy-efficient solutions.


6. Design-Aire Engineering, Inc.


Design-Aire Engineering, Inc. is a private engineering firm based in Indianapolis, Indiana, founded in 1983. The company specializes in mechanical, electrical, plumbing, and energy services, focusing on providing tailored solutions that enhance energy efficiency and promote sustainable building practices. With a small team of experienced professionals, Design-Aire Engineering has built a reputation for delivering high-quality engineering services across various sectors, including healthcare, education, and government. Their services include energy audits, utility incentive programs, and compliance with energy conservation regulations, demonstrating their commitment to environmentally conscious engineering. The firm is also recognized for its expertise in LEED certification and net-zero building design, further solidifying its role in advancing energy efficiency in the built environment.


7. Energy Diagnostics, Inc.


Energy Diagnostics, Inc., based in Valparaiso, Indiana, is a family-owned energy consulting firm that specializes in energy efficiency and building performance. Established in 1992, the company has built a reputation for providing a wide range of services tailored to the needs of builders, developers, architects, and HVAC professionals. Their offerings include residential and multifamily energy ratings, HVAC design, utility allowance analysis, air sealing, and assistance with the 45L tax credit. With a focus on helping clients navigate energy codes and improve the efficiency of both residential and commercial buildings, Energy Diagnostics has completed over 100,000 inspections and certifications nationwide. Their expertise in energy code compliance and green building certifications positions them as a valuable partner in the construction industry, particularly for projects seeking to maximize energy efficiency and sustainability.


8. KMC Controls

  • Website: kmccontrols.com
  • Ownership type: Private
  • Headquarters: New Paris, Indiana, United States (USA)
  • Employee distribution: United States (USA) 97%, Saudi Arabia 3%
  • Founded year: 1969
  • Headcount: 51-200
  • LinkedIn: kmc-controls

KMC Controls, founded in 1969 and based in New Paris, Indiana, is a private company that specializes in building automation and control solutions. With a workforce of approximately 187 employees, KMC Controls has established itself as a key player in the industry by offering a range of products aimed at enhancing energy efficiency and operational performance. Their solutions include IoT platforms, sensors, and software applications tailored for various sectors, such as healthcare, education, and commercial facilities. KMC Controls serves system integrators and organizations looking to optimize building management, making their offerings crucial for energy management initiatives. The company is also involved in projects that meet high sustainability standards, such as LEED certification, demonstrating their commitment to energy efficiency and environmental responsibility.


9. Jackson Control


Jackson Control, founded in 1972 and based in Indianapolis, Indiana, operates as a building technologies distributor and systems integrator. The company specializes in providing solutions that enhance building efficiency, security, health, and automation. They cater to property owners, facility managers, and contractors, offering a variety of products and services aimed at retrofitting buildings to improve energy efficiency and sustainability. Jackson Control is particularly focused on the integration of HVAC, security, lighting, and indoor air quality systems through their standardized Niagara open platform. This approach not only modernizes existing systems but also significantly reduces energy consumption, with reported savings of 30-35% in energy use for upgraded buildings. Their commitment to creating healthier and more efficient building environments is evident in their extensive offerings, which include building monitoring solutions and indoor air quality improvements. With multiple locations across the United States, Jackson Control continues to play a vital role in the energy efficiency industry.


10. Retro-Tech Systems, LLC

  • Website: retrotechsystems.com
  • Ownership type: Corporate
  • Headquarters: Valparaiso, Indiana, United States (USA)
  • Employee distribution: United States (USA) 50%, Indonesia 50%
  • Latest funding: June 2017
  • Founded year: 1993
  • Headcount: 51-200
  • LinkedIn: retro-tech-systems-inc.

Retro-Tech Systems, LLC, also known as Envocore, is based in Valparaiso, Indiana, and was founded in 1993. The company specializes in providing innovative energy solutions aimed at improving efficiency and reducing costs for its clients. Their service offerings include water efficiency, lighting optimization, building envelope improvements, and utility services. Envocore has worked extensively with federal and state governments, educational institutions, and healthcare facilities, helping them to tackle energy consumption challenges through comprehensive audits and tailored solutions. With a workforce of around 46 employees, the company has successfully completed over 3,500 projects across the United States and internationally, demonstrating a strong commitment to energy efficiency and sustainability. Their approach combines technical expertise with a focus on delivering measurable return on investment for their clients.


11. Precision Control Systems, Inc (Indiana)

  • Website: pcsog.com
  • Ownership type: Private
  • Headquarters: Griffith, Indiana, United States (USA)
  • Employee distribution: United States (USA) 100%
  • Founded year: 1980
  • Headcount: 51-200
  • LinkedIn: precisioncontrolsystemsindiana

Precision Control Systems, Inc. (PCS) is a private service company based in Griffith, Indiana, founded in 1980. The company specializes in facility automation, energy services, and maintenance, primarily serving educational institutions, healthcare facilities, and commercial entities. With a workforce of approximately 24 employees, PCS focuses on creating solutions that enhance energy efficiency and occupant comfort. Their expertise includes HVAC system design, installation, and maintenance, ensuring that facilities operate safely and efficiently. As an authorized partner of Schneider Electric, PCS leverages advanced technologies to provide web-based Intelligent Automation solutions. They also engage in performance contracting, allowing them to facilitate facility upgrades while guaranteeing energy savings. Their commitment to energy audits and operational assessments positions them as a knowledgeable partner for clients seeking to improve energy efficiency in their buildings.


12. R.E. Dimond and Associates

  • Website: redimond.com
  • Ownership type: Private
  • Headquarters: Indianapolis, Indiana, United States (USA)
  • Employee distribution: United States (USA) 100%
  • Founded year: 1977
  • Headcount: 11-50
  • LinkedIn: r.e.-dimond-and-associates

R.E. Dimond and Associates, Inc. is an engineering consulting firm based in Indianapolis, Indiana, founded in 1977. The company specializes in mechanical, electrical, plumbing, and technology services, catering to a wide range of clients, including educational institutions, healthcare facilities, and municipal organizations. With a team of experienced engineers, R.E. Dimond focuses on energy efficiency, system assessments, and sustainable design. They offer services such as energy modeling, facility assessments, and whole-building energy audits, which help clients identify energy-saving opportunities. The firm has successfully completed numerous projects aimed at optimizing building performance and reducing energy consumption. Their commitment to sustainability is evident in their involvement with LEED and WELL certification processes, showcasing their expertise in creating environmentally responsible designs. R.E. Dimond's portfolio includes over 200 projects, with a significant portion dedicated to complex renovations and adaptive reuse, highlighting their ability to enhance existing structures while improving energy efficiency.


13. Performance Services

  • Website: performanceservices.com
  • Ownership type: Corporate
  • Headquarters: Indianapolis, Indiana, United States (USA)
  • Employee distribution: United States (USA) 100%
  • Latest funding: April 2011
  • Founded year: 1998
  • Headcount: 201-500
  • LinkedIn: performance-services-inc-

Performance Services, founded in 1998 and based in Indianapolis, Indiana, operates as a design-build contractor with a focus on construction and architectural services tailored for educational institutions and municipal clients. The company employs a team of approximately 331 professionals and has completed numerous projects across the United States. Their service offerings include architectural design, energy savings performance contracts, and smart city solutions, which are integral to enhancing infrastructure and optimizing energy efficiency. Performance Services is particularly known for its Energy Leadership Program, which promotes energy conservation in K-12 schools and higher education institutions. They emphasize a vendor-independent approach, allowing them to select the best products and solutions for their clients' unique needs. This commitment to energy efficiency is further demonstrated through their performance guarantees, ensuring that energy savings are realized throughout the life of their projects.


14. Indianapolis Power & Light Company

  • Website: iplpower.com
  • Ownership type: Private
  • Headquarters: Indianapolis, Indiana, United States (USA)
  • Founded year: 1927
  • Headcount: 1001-5000
  • LinkedIn: iplpower

Indianapolis Power & Light Company, operating as AES Indiana, is an energy utility provider based in Indianapolis, Indiana. Founded in 1927, the company serves a substantial customer base, delivering electricity services to both residential and commercial clients. AES Indiana is focused on integrating renewable energy sources into its offerings and has developed a range of energy efficiency programs designed to assist customers in optimizing their energy use. These programs include incentives for energy-saving products, virtual home energy assessments, and initiatives aimed at promoting electric vehicle adoption. The company is also investing in smart grid technology to modernize its infrastructure, thereby improving reliability and customer experience. Through these efforts, AES Indiana demonstrates a strong commitment to sustainability and community engagement, making it a relevant entity in the energy efficiency sector.


15. Hale Industries, Inc

  • Website: hale-ind.com
  • Ownership type: Family Owned
  • Headquarters: Fortville, Indiana, United States (USA)
  • Employee distribution: United States (USA) 100%
  • Founded year: 1991
  • Headcount: 11-50
  • LinkedIn: hale-industries-inc.

Hale Industries, Inc., founded in 1991 and based in Fortville, Indiana, is a family-owned manufacturer specializing in energy-efficient HVAC solutions. With a workforce of 11 to 50 employees, the company has carved out a niche in the market by offering advanced radiant heating systems and high-efficiency pumps. Their product lines are designed to cater to a variety of industrial and commercial applications, providing clients with effective solutions to enhance energy efficiency and reduce operational costs. Over the years, Hale Industries has evolved from a typical product manufacturer to a provider of comprehensive energy conservation solutions, actively engaging in engineering analysis and turnkey HVAC facility improvements. Their commitment to energy sustainability is evident in their focus on delivering exceptional energy-saving solutions to both local and global clients. The company has recently expanded its production capabilities, reflecting a growing demand for their innovative products and services.


16. Power Moves

  • Website: powermoves.com
  • Ownership type: Private
  • Headquarters: Indianapolis, Indiana, United States (USA)
  • Employee distribution: United States (USA) 100%
  • Founded year: 2010
  • Headcount: 51-200
  • LinkedIn: power-moves-ee

Power Moves, based in Indianapolis, Indiana, is an energy efficiency service provider founded in 2010. The company offers a range of solutions aimed at improving energy efficiency for homeowners, businesses, and farms. Their services include comprehensive home energy assessments, which help identify areas for improvement, and a variety of rebates for energy-efficient upgrades. Power Moves also provides solar energy options, allowing clients to explore renewable energy sources. The company actively engages with local electric cooperatives to deliver tailored programs that assist clients in reducing energy costs while enhancing comfort and sustainability. With a dedicated team of professionals, Power Moves is committed to fostering energy efficiency and supporting its community in achieving greener practices.


17. Havel

  • Website: havelbros.com
  • Ownership type: Private
  • Headquarters: Fort Wayne, Indiana, United States (USA)
  • Employee distribution: United States (USA) 98%, Nigeria 2%
  • Founded year: 1950
  • Headcount: 201-500
  • LinkedIn: havel-brothers

Havel, based in Fort Wayne, Indiana, has been operational since 1950 and employs around 216 individuals. This private company specializes in HVAC, electrical, and building automation services, catering primarily to businesses and organizations. Havel is dedicated to enhancing facility efficiency and sustainability, ensuring that their services meet stringent industry standards. They provide a range of solutions, including mechanical and electrical services, building automation, and energy management. Havel's expertise extends to LEED accreditation, which helps clients achieve energy-efficient building standards. Their commitment to quality and safety is evident in their operational practices, and they have a strong focus on reducing energy costs and improving productivity for their clients.


18. TSI Energy Solutions


TSI Energy Solutions, based in Carmel, Indiana, is a consulting firm that specializes in energy efficiency and building diagnostics. Since its inception in 1980, the company has focused on providing a range of services aimed at improving energy performance in both residential and commercial buildings. Their offerings include energy audits, compliance inspections, and certifications, which are crucial for builders looking to meet local building codes and enhance the sustainability of their projects. TSI Energy Solutions has built a reputation for its expertise in navigating complex energy codes and certifications, such as Energy Star and National Green Building Standards (NGBS). The company plays a significant role in the construction industry by helping clients achieve energy-efficient homes, thereby contributing to environmental sustainability and cost savings for homeowners. With a dedicated team of professionals, TSI Energy Solutions continues to be a trusted partner for builders seeking to optimize energy efficiency in their projects.


19. CBMC Lighting Solutions


CBMC Lighting Solutions, based in Indianapolis, Indiana, is a private company founded in 1994. With a team of 27 employees, the firm specializes in providing comprehensive lighting solutions, including lighting design, interior and exterior lighting, and energy management services. They cater to a variety of sectors such as hospitality, retail, and healthcare, simplifying the lighting process for their clients by acting as a single point of contact. Their focus on energy efficiency is evident in their offerings, which include intelligent LED lighting solutions that can significantly reduce energy consumption and costs. CBMC Lighting Solutions also assists clients in navigating energy management, ensuring compliance with regulations while promoting sustainable practices. Their approach not only enhances the environments of their clients but also contributes to long-term cost savings and environmental responsibility.


20. KBSO Consulting LLC

  • Website: kbsoconsulting.com
  • Ownership type: Private
  • Headquarters: Carmel, Indiana, United States (USA)
  • Employee distribution: United States (USA) 100%
  • Founded year: 2015
  • Headcount: 11-50
  • LinkedIn: kbso-consulting-llc

KBSO Consulting LLC, founded in 2015 and based in Carmel, Indiana, is an engineering consulting firm that specializes in mechanical, electrical, plumbing, and technology design services. With a team of approximately 35 professionals, the company caters primarily to commercial and institutional sectors, providing tailored solutions for construction and renovation projects. KBSO Consulting is particularly noted for its commitment to sustainability, as reflected in their mantra, "We can do better." This philosophy drives their approach to engineering, where they prioritize energy efficiency and innovative design. Their portfolio includes notable projects like the Elanco World Headquarters, where they integrated advanced sustainable systems into the design, and the Indiana Archives and Records Administration building, which emphasizes functionality and aesthetics. KBSO's focus on energy services, including renewable energy system design and compliance with energy codes, further solidifies their role in promoting energy efficiency within the built environment.



Energy Efficiency Insights: Key Companies in Indiana


CompanyHeadquarterSizeFoundedOwnership
Energy Systems Group (ESG)Newburgh, Indiana, United States (USA)201-5001994Private Equity
Skill DemandCarmel, Indiana, United States (USA)501-10002015Private
Climate Makers IncPeru, Indiana, United States (USA)1-101978Private
WaterFurnace InternationalFort Wayne, Indiana, United States (USA)201-5001983Corporate
Apex Energy SolutionsZionsville, Indiana, United States (USA)51-2001999Corporate
Design-Aire Engineering, Inc.Indianapolis, Indiana, United States (USA)1-101983Private
Energy Diagnostics, Inc.Valparaiso, Indiana, United States (USA)11-501992Family Owned
KMC ControlsNew Paris, Indiana, United States (USA)51-2001969Private
Jackson ControlIndianapolis, Indiana, United States (USA)11-501972Private
Retro-Tech Systems, LLCValparaiso, Indiana, United States (USA)51-2001993Corporate
Precision Control Systems, Inc (Indiana)Griffith, Indiana, United States (USA)51-2001980Private
R.E. Dimond and AssociatesIndianapolis, Indiana, United States (USA)11-501977Private
Performance ServicesIndianapolis, Indiana, United States (USA)201-5001998Corporate
Indianapolis Power & Light CompanyIndianapolis, Indiana, United States (USA)1001-50001927Private
Hale Industries, IncFortville, Indiana, United States (USA)11-501991Family Owned
Power MovesIndianapolis, Indiana, United States (USA)51-2002010Private
HavelFort Wayne, Indiana, United States (USA)201-5001950Private
TSI Energy SolutionsCarmel, Indiana, United States (USA)11-501980Private
CBMC Lighting SolutionsIndianapolis, Indiana, United States (USA)11-501994Private
KBSO Consulting LLCCarmel, Indiana, United States (USA)11-502015Private


Want to Find More Energy Efficiency Companies?

If you want to find more companies that offer energy audits, buildingautomation, and innovative HVAC solutions you can do so with Inven. This list was built with Inven and there are hundreds of companies like these globally.

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!