District of Columbia
- American Line Builders – Apprenticeship and Training Program
- D.C. Department of Employment Services: Apprenticeship Program
- Finishing Trades Institute: Apprenticeship & Training
- Francis L. Greenfield Laborers Training & Apprenticeship Institute
- IBEW Local 26 JATC: Apprenticeship – Washington, DC Chapter
- Iron Workers Local 201 (District of Columbia, Maryland and Virginia)
- Ironworkers Local #5 (Washington, DC)
- Local Union 26: Apprenticeship Training & Journeymen Skill Improvement Courses
- Mid-Atlantic Regional Council Joint School of Carpentry: Apprenticeship Programs
- Union of Operating Engineers – Local 99: Apprenticeships
- United Union of Roofers, Waterproofers and Allied Workers – Apprenticeship
- USDA Forest Service – Northern Region – Region One Wildland Firefighter Apprenticeship Program
- Washington D.C. Plumbers #5 – Apprenticeship
