- Associated Builders and Constractors (ABC) Northern Ohio Chapter – Construction Craft Programs
- Associated Builders and Contractors,Inc. Central Ohio Chapter
- Associated Electrical Contractors – Central Ohio Chapter: Electrical Apprenticeship Program
- Boilermakers National Apprenticeship Program (BNAP): South-eastern Area – Boilermakers Field Construction/Repair Apprenticeship
- Bricklayers Local 5 Ohio – Bricklayers & Masons
- Builders Association of Eastern Ohio and Western Pennsylvania – Apprenticeship Program
- Cement Masons Local 404
- Columbus State Community College – Orientation to Trades and Apprenticeship Program (OTAP)
- Conover Workshops – Woodworking
- Construction Employers Association of Cleveland (CEA)
- Corna Kokosing Construction Company
- International Association of Bridge, Structural, Ornamental and Reinforcing Ironworkers – Local Union No. 172 (Columbus, OH)
- International Association of Bridge, Structural, Ornamental and Reinforcing Ironworkers – Local Union No. 207 (Boardman, OH)
- International Association of Bridge, Structural, Ornamental and Reinforcing Ironworkers – Local Union No. 44 (Cincinnati, OH)
- International Brotherhood of Electrical Workers Local Union 306
- International Union of Elevator Constructors Local 45
- Iron Workers Local 17 (Cleveland, OH)
- Ironworker Local 290 (Dayton, OH)
- Ironworkers Local 55 (Toledo, OH)
- Ironworkers Sourthern Ohio & Vicinity District Council
- Journeymen Plumbers Union Local 55
- Laborers Union 574 (Ohio)
- National Electrical Contractors Association (NECA) North Central Ohio Chapter
- Northeast Ohio Carpenters' Joint Apprenticeship Program
- Northwest Ohio Construction Education Center – Supports Skilled Trade Apprenticeships & Journeyman Members By Offering Affordable Training
- Northwestern Ohio Building and Construction Trades Council (NWOBTC) Construction Careers & Apprenticeship Programs
- Ohio Corna-Kokosing Construction Company – Apprenticeships
- Ohio Department of Education Career-Tech
- Ohio State Apprenticeship Council
- Ohio Valley Construction Employers Council, Inc.
- Operative Plasterers' and Cement Masons' International Association (OPCMIA) Local 886
- Plumbers & Pipefitters Local 776
- Plumbers & Steamfitters Local 42 JATC – Norwalk, Ohio
- Plumbers, Pipefitters & Mechanical Equipment Service Local 392
- Plumbing-Heating-Cooling Contractors of Ohio
- Road Sprinkler Fitters Local Union 669
- Sheet Metal Workers Local Union No. 33
- Union Pipetrades of Hahoning Valley Plumbers & Pipefitters Local 396
- United Association Plumbers, Steamfitters & Service Mechanics Local 50
