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Eleven Companies Earn Industry-Leading Accreditation from the National Association of Energy Service Companies

WASHINGTON, DC., January 23, 2024 - The National Association of Energy Service Companies (NAESCO), the leading advocacy and accreditation association representing companies modernizing the nation's building infrastructure through energy efficiency projects, announces the accreditation of eleven companies. These companies have demonstrated the highest levels of professionalism, technical expertise, and ethical standards, making them exemplary partners for building infrastructure and energy efficiency projects.

NAESCO's rigorous accreditation process involves a comprehensive evaluation of a company's technical and managerial competencies. Three categories of accreditation are offered: Energy Service Company (ESCO), Energy Service Provider (ESP), and Energy Efficiency Contractor (EEC).

All applications are subjected to a rigorous evaluation by an unbiased committee comprised of industry experts. This process guarantees a comprehensive assessment of their fundamental skills and business methodologies. The committee looks at criteria such as the precise nature of the applicant's business, the range of measures and services offered to customers, the availability of a performance-based project approach and the applicants ethical business practice commitment.

Following the fall 2023 application review, nine companies have successfully secured re-accreditation, while two companies have obtained accreditation for the first time.


Energy Service Provider (ESP):

  • Climatec, LLC
  • ENGIE Services U.S. Inc.
  • Johnson Controls, Inc.
  • SitelogIQ
  • Veregy

Energy Service Company (ESCO):

  • Entegrity Partners, LLC
  • McKinstry

Energy Efficiency Contractor (EEC):

  • Steam Management, Inc.

Newly Accredited

Energy Service Company (ESCO):

  • PacificWest Energy Solutions, Inc.
  • Southland Industries

NAESCO-accredited companies play a vital role in revitalizing aging infrastructure, building resilient energy systems, and driving down energy consumption.

Accreditation opportunities are available twice a year, in the spring and fall. NAESCO membership is a prerequisite for accreditation eligibility.

For more information about NAESCO and its accreditation process, please visit

See a full list of NAESCO-accredited companies:



The National Association of Energy Service Companies (NAESCO) is the leading advocacy and accreditation organization for Energy Service Companies (ESCOs) and is dedicated to modernizing America’s building infrastructure. Uniting the energy service industry, NAESCO promotes favorable government policies, sponsors a rigorous accreditation program, provides training and education, and champions the interests of ESCOs across the nation.

ESCOs contract with private and public sector energy users to provide cost-effective energy efficiency retrofits across a wide spectrum of client facilities, from college campuses to water treatment plants. Effectively utilizing a performance-based contract business model, ESCOs have implemented more than $70 billion in comprehensive energy efficiency retrofit projects over the last three decades.

Learn more about NAESCO, its members, membership benefits, and the accreditation process at, and follow NAESCO on Twitter (@NaescoNews) and LinkedIn (@naesco).


Media Contact:

Julie Chesna

On behalf of NAESCO