1.
Government Electrical & Mechanical Services Department Staff Union
政府机电工程署雇员工会
2.
Government Electrical & Mechanical Services Department Technical Staff Union
政府机电工程署技术人员工会
3.
Government Electrical and Mechanical Services Department Building Services Employees Association
政府机电工程署屋宇装备人员协会
4.
Government Supplies Employees Unio
政府物料供应雇员工会
5.
Municipal Sector Division [Electrical and Mechanical Services Department]
市政工程部〔机电工程署〕
6.
Staff Management Unit [Electrical and Mechanical Services Department]
员工管理组〔机电工程署〕
7.
Customer Liaison Group [Electrical and Mechanical Services Department]
客户联络委员会〔机电工程署〕
8.
Departmental Administration Division [Electrical and Mechanical Services Department]
行政部〔机电工程署〕
9.
Finance Division [Electrical and Mechanical Services Department]
财政部〔机电工程署〕
10.
"Amalgamated Union of Highways, Drainage Services, Civil Engineering & Territory Development Departments' Engineering Staff"
路政署、渠务署、土木工程署及拓展署工程人员合并工会
11.
Accounting Services Unit [Electrical and Mechanical Services Department]
会计组〔机电工程署〕
12.
Government Electrical and Mechanical Works Supervisors, Craftsmen and Workmen Association
政府机电监工技工职员协会
13.
Airport Sector Division [Electrical and Mechanical Services Department]
机场工程部〔机电工程署〕
14.
Association of Local Engineers of Electrical and Mechanical Services Department
机电工程署本地工程师协会
15.
Hong Kong Government Water Supplies Department Employees Union
香港政府水务署职工会
16.
Vehicle Engineering Division [Electrical and Mechanical Services Department]
车辆工程部〔机电工程署〕
17.
Health Sector Division [Electrical and Mechanical Services Department]
卫生工程部〔机电工程署〕
18.
Project Division [Electrical and Mechanical Services Department]
工程策划部〔机电工程署〕