- Acoustic Ceiling & Partition of Ohio
- Brexton
- BUDS, Inc.
- CK Construction
- Compass Construction
- Construction Systems, Inc.
- Continental Building Company
- Danbert Contractors
- Dugan & Meyers
- Elford, Inc.
- Follow the River Environmental
- Gilbane Building Company
- Howard L. Bowers Contracting Co.
- James White Construction Co.
- Kokosing Industrial
- Lang Masonry
- Limbach Company
- Lincoln Construction
- Messer Construction
- Mid Atlantic Maintenance
- Native Construction
- NLS Paving, Inc
- OCP Contractors
- Ohio Bridge Corporation
- Ohio-West Virginia Excavating Co.
- Parks Drilling Company
- Parnell & Associates, Inc.
- Penn Line Service, Inc.
- Performance Contracting Inc.
- RDR Utility Services Group
- Setterlin Building Company
- Settle Muter Electric
- Shelly & Sands, Inc.
- Skeens Excavating
- Smoot Construction Company
- Southeast Ohio Apprenticeship Programs
- Team Fishel
- The Altman Company
- TP Mechanical Contractors
- Triton Construction, Inc.
- Turner Construction Company
- Valley Interior Systems
- Velocity Construction Company
- Wolf Creek Contracting Company, LLC