CASE Institutional Members as of 1 October 2010
| Institution | PHONE | FAX |
| Amalgamated Union Of Public Employees | 64328194 | 63367741 |
| Amalgamated Union of Statutory Board Employees | 62972097 | 62970565 |
| Building Construction & Timber Industries Employees' Union | 62201233 | 62644934 |
| CITIPORT Credit Co-operative Ltd | 62786504 | 62728192 |
| DBS Staff Union | 68781721 | 62261091 |
| Direct Selling Association Of Singapore | 63529093 | 63529093 |
| Housing & Development Board Staff Union | 63365544 | 63566798 |
| Keppel FELS Employees Union | 68636179 | 68637029 |
| National Transport Workers' Union | 67430822 | 67430861 |
| NTUC Income Insurance Co-operative Ltd | 63363322/68773014 | 63381500 |
| Public Utilities Board Employees' Union | 62830159 | 62854296 |
| Singapore Airlines Staff Union | 65416090 | 65429221 |
| Singapore Bank Officers' Association | 62952975 | 62968756 |
| Singapore Chinese Teachers' Union | 67443191 | 67463948 |
| Singapore Industrial & Services Employees Union | 62203345 | 62205187 |
| Singapore Insurance Employees' Union | 63370273 | 63370273 |
| Singapore Jewellers Association | 65334053 | 65330867 |
| Singapore Maritime Officers' Union | 63960123 | 63395436 |
| Singapore National Co-operative Federation Ltd | 62590077 | |
| Singapore Organisation Of Seamen | 63795666 | 67345525 |
| Singapore Shell Employees' Union | 67358825 | 67352125 |
| Singapore Tamil Teachers' Union | 62935644 | 62939824 |
| Singapore Teachers' Union | 64524403 | 64584163 |
| Staff Union Of NTUC - ARU | 62138344 | 63398104 |
| Union Of Telecoms Employee Of Singapore | 63371122 | 63396040 |
| United Workers of Petroleum Industry | 64660266 | 64685404 |
| United Workers Of Electronic & Electrical Industries | 64402338 | 64400268 |
| Wavelink Co-operative Ltd | 63901606 | 62952202 |
| ExxonMobil Singapore Employees Union | 66636887 | 66636901 |
| NatSteel Employees' Union | 66607783 | 62666018 |
| Singapore Bank Employees' Union | 63390588 | 63393126 |