Most workers in the field do not join a union. However, there are some workers who choose to join the Service Employers International Union, which represents about 2 million service workers in health care, public, and property services.
Workers can also become members of IEHA, which offers educational and employment opportunities, as well as certification, to its members.
- Air Quality Engineers
- Airport Service Workers
- Building Automation Systems Engineers
- Building Automation Systems Technicians
- Building Performance Diagnosticians
- Business Managers
- Chimney Sweeps
- Engineers
- General Maintenance Mechanics
- Grounds Managers
- Heating and Cooling Technicians
- Indoor Environmental Health Specialists
- Landscapers
- National Park Service Employees
- Parking Attendants
- Plumbers and Pipefitters
- Property and Real Estate Managers
- Real Estate Developers
- Resort Workers
- Restaurant and Food Service Managers
- Security Consultants
- Security Guards
- Sports Facility Managers
- Stationary Engineers