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We Move Innovation into Action.

Since 1981, our team has made it our mission to provide exceptional programs, services, and tools that encourage the intelligent use of energy. We believe that every employee can help protect the integrity of our planet for future generations. Our crew of over 200 engineers, analysts, and program consultants draw on 1,300 combined years of consulting experience. Together, we serve our clients and the planet in hopes of creating a sustainable and resilient tomorrow. 

“They are the ultimate consulting firm. I believe in their goal and the people. They’ve always delivered.” 
 –2020 NetPromoter Survey 

Net Promoter Score

In 2022, Frontier received an NPS® score of 9.1: An exceptional achievement reflecting consistently high performance serving its client base.  

Net Promoter Score 9.1 for Frontier Energy


  • INNOVATE® Minnesota for the “impressive people, companies, institutions, and ventures working to improve their city, their state, and beyond” (2020)
  • ASTM International John Mough Award of Appreciation for Subcommittee on Hydrogen and Fuel Cells” (2019)
  • ACEEE “Exemplary Program” Award for BayREN, OG&E, and AOG Joint Weatherization Program (2019)
  • 17th Annual Tekne Awards Finalist for Minnesota’s top technology companies and individuals (2016)
  • U.S. DOE “Outstanding Achievement” (2015)
  • U.S. DOE “Top Innovation” (2013)
  • Clean Air Through Energy Efficiency “Outstanding Commercial Enterprise” (2014)
  • West Sac Chamber of Commerce “Business Person of the Year” (2014)
  • PRSA Sacramento “Crystal Merit” (2013)
  • Foodservice Consultants Society International “Green Award” (2012)