Alpha Mechanical Service, Inc.
George Lewis, Director of Sales
Weddle Plumbing, Inc.
Tami S. Weddle, President and James R. Weddle, Vice President
The State Group Industrial (USA) Limited
Sterling Boiler & Mechanical, Inc.
John M. Vinitski (President), Ken Wahl (CFO), Lee Fehrenbacher (Project Estimating Manager), Brian Dempsey (Lead Mechanical Estimator)
enerfab Power & Industrial LLC
Ritzert Company, Inc.
Roy K. Ritzert (President), Tim E. Ritzert, E.I. (Vice President of Operations), Nicholas A. Ritzert, Vice President of Construction
Midwest Mechanical Services, Inc.
Russel A. Fulton
Mastercraft Mechanical Contractors, Inc.
J. E. Shekell, Inc.