• Ace Pipe Cleaning, Inc.

• Allgeier Martin & Associates, Inc

• Alliance Water Resources

• Archer-Elgin

• Arkansas Valley Electric Coop

• AssuredPartners of Missouri

• Bartlett & West

• Benton & Associates, Inc.

• BHMG Engineers

• Border States

• Burns & McDonnell Engineering

• CDG Engineers

• Chapman Metering

• Chubb Insurance

• Cocosolar

• Commerce Bank

• Cross Discipline Engineering, LLC

• Dogwood Energy, LLC

• Drake-Scruggs Equipment

• Electric Power Systems

• Electrical Corporation of America, Inc.

• Emerald Transformer

• Energy Mgmt - University of MO

• EnergySolutions Inc

• EOS Energy Enterprises, Inc

• Evans, Lipka & Associates

• Evergy Energy Partners

• ExpertPower, Division of Satec Inc.

• Fabick Power Systems

• Fairbanks Morse Defense

• Finley Engineering Inc

• Fisher Arnold

• Fletcher-Reinhardt Company

• Fluid Equipment

• Flynn Drilling Company

• Foley Power Solutions

• Forvis Mazars, LLP

• Geosyntec Consultants Inc.

• GFI Digital, Inc/Sharp Electronics

• Gilmore & Bell, P.C.

• HDR Engineering

• Healy Law Offices

• Heartland Business Systems

• Hometown Grid

• Howe Company, LLC 

• Industrial Sales Company

• Invenergy LLC 

• Irby Utilities

• JCI Industries, Inc.

• JM Eagle

• K D Johnson Inc

• KimHEC

• Leidos Engineering, LLC

• Lutz, Daily & Brain, LLC

• LUZCO Technologies LLC

• MC Power Companies

• McClure

• Mid America Testing & Supply

• Midwest Infrastructure Coatings LLC

• MIRMA

• Missouri LAGERS

• Missouri 811

• mPower Innovations

• NextEra Energy Marketing

• NISC

• NORESCO

• Northern Inspection Services

• Novo Solutions Inc

• Olsson

• Osmose Utilities Services, Inc.

• Parsons/IPKeys Power Partners

• PFM Asset Management, LLC

• PFSbrands & GRITT Business Coaching

• Poor Boy Tree Service Inc

• Power Engineers, Inc.

• Power Line Consultants, LLC

• Professional Computer Solutions, LLC

• Protective Equipment Testing Lab

• Reinhold Electric Inc

• Relia-Bill/Harris Consulting Engineering, Inc.

• Road Runner Safety Services

• R/S Electric

• S H Smith & Co

• S&C Electric Company

• Schaeffer Marketing Group, Inc

• Scobee Powerline Construction

• Seiler Instrument Company

• Sellenriek Energy

• Sensus USA

• ServiceMaster DSI

• SSI Maxim of Tennessee LLC

• Sunbelt-Solomon Corporation

• Spiegel & McDiarmid LLP

• Sterling Security Systems

• Stifel

• Subsurface Solutions

• Surveying and Mapping, LLC (SAM)

• T&R Electric Supply Company

• Tenaska Power Services Company

• The Energy Authority

• Toth & Associates

• Tyler Technologies

• United Systems & Software Inc.

• USG Water Solutions

• Utility Structural Systems

• Vandevanter Engineering

• Vantage Point Solutions

• Visu-Sewer of MO LLC

• Wesco