Iowa
- Associated Builders and Contractors (ABC) Iowa Chapter
- Building & Construction Trades Department, AFL-CIO ~ Omaha & Southwest Iowa Building Construction Trades Council Apprenticeship Programs
- Central Iowa Building & Construction Trades Council – Career Information
- Des Moines Apprenticeship and Training Program – Carpenters District Council of Kansas City and Vicinity
- International Association of Bridge, Structural, Ornamental, and Reinforcing Iron Workers Local 89 (Cedar Rapids, IA)
- International Brotherhood of Electrical Workers (IBEW) Local 405 – Joint Apprenticeship Training Center, Cedar Rapids
- Iowa Electrical Apprenticeship Opportunities
- Iowa Workforce – Iowa Registered Apprenticeships
- Iowa-Nebraska Equipment Dealers Association
- MINK Pipe Trades (Missouri, Iowa, Nebraska, Kansas)
- North Central States Regional Council of Carpenters (NCSRCC)
- Operating Engineers Local 234 – Equipment Apprenticeship – Equipment Operators Union
- Operative Plasterers and Cement Masons (OPCMIA) Local 21
- Organic Trade Association Internship Opportunities
- Plumbing Heating Cooling Contractors of Iowa – Apprenticeship (Cedar Rapids and Des Moines)
- Sioux City Training Center – Carpenters District Council of Kansas City and Vicinity Apprenticeship and Training
- Southeast Iowa Joint Apprenticeship Training Committee
- Technology Association of Iowa (TAI)
- United Association Plumbers & Pipefitters Local 125
- United Association Plumbers & Steamfitters Local 33
