Best Energy Companies in Indiana, United States
The 100 best Energy companies in Indiana, United States in 2026, ranked by funding and momentum. Funding, investors, founders, valuation, tech stack and live signals. Top: NiSource.
Our analysis of 171 Energy companies
$71.4b in tracked funding; 82% of the stack-profiled cohort runs cloud-native; funding activity peaked in 2025.
Ranked: Best Energy companies in Indiana
| # | Company | Disclosed funding | Last round | Employees | Founded | Founder | Tech stack | Patents & IP focus | Recent signals |
|---|---|---|---|---|---|---|---|---|---|
| 1 | Accelera Global energy technology company providing lowvto zero emission solutions to power the world with clean energy | — | — | — | 2023 | Jennifer Rumsey CEO | DrupalPHPVarnish+18 | 2 patents Optimizing mobile network handover and self‑organizing network management for cellular/Wi‑Fi integration. | — |
| 2 | allied enterprises AE is a US manufacturer of transmission products for the construction, agricultural, material handling and… | — | — | 40 | 1982 | — | — | — | — |
| 3 | American Road Lines Provider of truck for oil and gas industries | — | — | 33 | 2015 | — | — | — | — |
| 4 | ARC American Provider of electrical utility and contracting services, specializing in the installation, maintenance, and… | — | — | 74 | 2012 | — | WordPressMySQLPHP+24 | — | — |
| 5 | big inch fabricators Big Inch Fabricators offers fabrication, installation, and construction of compressors, pumping stations… | — | — | 65 | 1998 | — | — | — | — |
| 6 | Blattner Company Developer of solar energy projects | — | — | 4,121 4,121 → 3,795 (-8%) | 2019 | — | HubSpot CMS HubApple iCloud MailMicrosoft 365+18 | — | — |
| 7 | boss BOSS Industries development team is setting a new standard in compressor technology. | — | — | 78 | 1988 | — | WordPressMySQLPHP+22 | — | 1 job opening |
| 8 | Brownstown Electric Supply Provider of material sales and service for the electrical utility market | — | — | 63 | 1970 | Carl Shake Co-Founder | — | — | — |
Top 12 Energy companies in Indiana
#1
Public · Columbus, Indiana · founded 1919 · 73600 employees$284.5Mraised▾
Manufacturer of gas-powered construction equipment, fuel systems, turbochargers, and braking systems. The platform offers users various diesel and natural gas-powered engines for heavy and medium-duty trucks, buses, recreational vehicles, agricultural, and construction equipment, mining, marine, oil and gas, and governmental equipment markets. In 2022, the company recorded annual revenues of $28.07B and a net profit of $2.15B.
- Sep 2025Grant (prize money)$2.1M
- Apr 2025Grant (prize money)$16.3M
- Apr 2025Grant (prize money)$2M
- Apr 2025Grant (prize money)$2.9M
#2
Public · Merrillville, Indiana · founded 1912 · 7364 employees$750Mraised▾
NiSource offers electricity and natural gas distribution service. As of September 2017, it has distribution operations across seven states in the United States including Indiana, Ohio, Pennsylvania, Virginia, Kentucky, Maryland, and Massachusetts. It offers the distribution service to both residential and commercial customers and has a network of over 45k miles of distribution pipelines across the seven states. In 2022, the company recorded annual revenues of $5.94B and a net profit of $0.71B.
- Jan 2022Post IPO—
- Jun 2018Conventional Debt$350M
- Jun 2018Post IPO$400M
#3
Seed · South Bend, Indiana · founded 2019$499.5Kraised▾
Crossroads Solar is a company that manufactures high quality solar panels in South Bend, Indiana. They have a unique workforce entirely made up of second-chance citizens, providing jobs and life skills for recently released felons. The company's core mission is to change lives and the planet one panel at a time.
- Feb 2024Seed$499.5K
#4
Acquired · Hammond, Indiana · founded 1995 · 378 employees$13.2Mraised▾
Provider of industrial cleaning and support services. This includes turnaround services, hydroblasting, tank cleaning, hydro/air excavation, vacuum services, chemical cleaning, power plant services, and sewer/line cleaning. The company offers a complete service package, aiming to minimize client vendor management, improve project timelines, and reduce overall costs. A focus on safety is paramount, with extensive training programs for employees. The company is a certified Minority Business Enterprise.
- Oct 2016Conventional Debt$16.5M
- 2011PE$13.2M
- 2010Conventional Debt$38M
#5
Seed · Fort Wayne, Indiana · founded 2010 · 51 employees$600Kraised▾
Provider of natural cosmetics and skincare products. This company offers a diverse selection of products for face, body, and hair care, including serums, creams, lotions, and other items. They utilize natural ingredients and sustainable production methods. The product line also includes self-tanning products and items specifically formulated for children. A key feature is an AI-powered skin analysis tool to provide personalized skincare recommendations. The company also maintains a blog with information on skincare routines and ingredients.
- May 2022Conventional Debt$8M
- Feb 2017Seed$600K
#6
Seed · Carmel, Indiana · founded 2013 · 3 employees$578Kraised▾
Provider of solutions to generate electricity from heat. It provides plasma thermionic energy converters for waste heat power generation, concentrated solar, and advanced nuclear reactors. It provides caesium thermionic energy converters that use high-grade heat to boil electrons from a material via thermionic emission. These boiled-off electrons are collected across a small gap, then used to generate electricity
- Jan 2020Seed$558K
- Jan 2015Grant (prize money)$20K
#7
Seed · Indianapolis, Indiana · founded 2011$900Kraised▾
Provider of HVAC, plumbing, and electrical service repair and installation services
#8
Funding Raised · Fishers, Indiana · founded 2018 · 4 employees$250Kraised▾
Manufacturer of batteries
- Mar 2020Grant (prize money)$250K
#9
Seed · West Lafayette, Indiana · founded 2012 · 13 employees$150Kraised▾
Provider of fuel research and development services intended to develop high-value fuels, blendstocks, and related technologies that create long-term value in the marketplace. The company's services focus on developing proprietary new technologies to enhance refinery gasoline, aromatics, and midstream processes, enabling clients to convert low-valued hydrocarbons to high-valued fuels through the company's turnkey processing technologies.
- Jul 2020Seed$50K
- Aug 2019Seed$100K
#10
Funding Raised · Martinsville, Indiana · founded 1998 · 3 employees$10.3Kraised▾
Stay Informed During Outages! Just because the power is out doesn’t mean you have to be in the dark. The quickest, most effective way of keeping up with updates during outage...
- Sep 2009Grant (prize money)$10.3K
#11
Seed · South Bend, Indiana · founded 2007 · 48 employees—raised▾
Inovateus Solar is a solar developer that provides designing, engineering, procurement and construction services in the United States’ Midwest. The company claims that they have developed and built more than 250 MW of utility, rural electric cooperative, commercial, industrial, governmental, educational and microgrid solar power systems in the U.S., the Caribbean and Latin America.
- Feb 2022Seed—
#12
Funding Raised · Lawrenceburg, Indiana · founded 1995 · 7 employees—raised▾
Provider of water and sewer utility services committed to providing clean and safe water for all the residents. The company offers water supply and environmentally sound and efficient wastewater disposal services to the property owners.
Funding & investor landscape
Notable founders
Market landscape — 10 sub-themes by coverage
Share of Energy coverage by sub-theme.
Regulatory-risk over time rising
Funding & growth over time
funding rising · growth rising
What Indiana researches in energy storage
Indiana University–Purdue University Indianapolis and Indiana University Bloomington optimistically lead Indiana's energy-storage research, focusing dominantly on advanced battery technologies and materials, with 16 breakthrough/advancement papers since 2020.
- Indiana University – Purdue University Indianapolis8
- Indiana University Bloomington6
- Indianapolis Zoo3
- University of Indianapolis2
- Indiana Hand to Shoulder Center2
Common questions
Riya reads income statements for fun. She covers the real money in a sector — revenue, growth, who actually earns — and never met a vague claim she didn't want a number for.