- Constellation NewEnergy
 - An electricity supplier to business, industrial, and commercial accounts nationwide. - Navigant Consulting, Inc. (2)
- Bevilacqua-Knight, Inc.
- Provides analytical, planning, programme management, and communications services to clients in the energy and transportation fields.
- Butsko Utility Design
- Provides dry utility design, planning, and management services.
- Momentum Advantage Partners
- Offers energy management solutions to lower operating costs through utility audits and rate reductions, energy management plans, and renewable technologies including geothermal.
- ElectriCities of North Carolina
- Non-profit organisation that consolidates many services needed by municipally owned electric utilities.
- Henwood Energy Services, Inc.
- Management consulting, transactions assistance, advanced software for price forecasting and energy trading.
- Ontario Hydro Energy Inc. (OHEI)
- Offers energy-related expertise to deliver efficiency and productivity improvements to businesses.
- NUS Consulting Group
- Specialises in helping businesses manage and reduce utility expenses.
- Kanner & Associates
- Government relations consulting firm specialising in the electric utility industry. Provides strategic guidance, policy development, and coalition management.
- Applied Energy Group
- Provides energy management consulting services and products for the electric and gas utility industries.
- Environmental Consultants Inc.
- Vegetation management consulting services for the electric utility industry. Services include distribution system clearance, contract utility arborists, wetland delineation, and herbicide use.
- Summit Energy
- Electricity and natural gas outsourced management company.
- ACRT, Inc
- Providing powerline clearing and urban forestry services and training to utilities, municipalities, and government agencies; as well as natural resource characterization and mapping.
- EnerVision, Inc.
- Business, marketing, and management consulting organisation serving electric utilities.
- Synergetic Design
- Offers consulting and engineering staffing services to electric utility companies.
- ComPower Group
- Specialises in services to electric customers, utilities and suppliers. Organised into 3 divisions: contracting & procurement, strategic planning, and information services.
- M-co, The Marketplace Company
- Provides marketplace software and services designed to help companies establish and operate trading exchanges for vital commodities such as electricity, gas, transport, and telecommunications.
- Northern Technology & Testing
- Indepedent laboratory serving the electrical power industry with dissolved gas analysis, PCB, and oil quality assessment testing.
- Power Delivery Research & Consulting, Inc.
- Provides management consulting and research for the electric utility industry in the areas of power delivery practices and performance improvement.
- Burns and Associates Engineers
- BAE provides the following products: tubetrack; boiler tube failure tracking olpms; online plant performance planttrack; plant documentation control baebwc; and boiler water chemistry.
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