| Business | Phone |
| Assn Of Student Employees 807 Washington St, San Diego 92103 | (619) 294-2977 |
| Bakery & Confectionery Workers 8316 Clairemont Mesa Blvd #201, San Diego 92111 | (858) 571-0735 |
| California Nurses Assn 3160 Camino Del Rio S, San Diego 92108 | (619) 516-4917 |
| California State Employees 3456 Camino Del Rio N # 101, San Diego 92108 | (619) 624-0515 |
| Carpenters Local 547 8595 Miralani Dr # B, San Diego 92126 | (858) 621-2674 |
| Cement Masons 1807 Robinson Ave # 206, San Diego 92103 | (619) 291-6930 |
| Center On Policy Initiatives 3727 Camino Del Rio S # 100, San Diego 92108 | (619) 584-5744 |
| Coalition Of University Emp 914 Morena Blvd, San Diego 92110 | (619) 296-4937 |
| American Federation Of Nurses 5333 Mission Center Rd # 358, San Diego 92108 | (619) 295-0102 |
| American Federation-Tv & Radio 7676 Hazard Center Dr # 500, San Diego 92108 | (619) 497-2510 |
| Graphic Communications Union 10393 San Diego Mission Rd, San Diego 92108 | (619) 283-6788 |
| International Alliance 3737 Camino Del Rio S, San Diego 92108 | (619) 640-0042 |
| Plasterers 3737 Camino Del Rio S # 202, San Diego 92108 | (619) 640-0031 |
| San Diego Adult Educators 1081 Camino Del Rio S, San Diego 92108 | (619) 296-3880 |
| San Diego County Building 3737 Camino Del Rio S # 202, San Diego 92108 | (619) 521-2914 |
| San Diego Fire Fighters 10405 San Diego Msn Rd # 201, San Diego 92108 | (619) 563-6161 |
| Service Employees Intl Union 5353 Mission Center Rd, San Diego 92108 | (619) 295-0102 |
| United Domestic Workers-Amer 3737 Camino Del Rio S # 400, San Diego 92108 | (619) 263-7254 |
| United Food & Commercial Wrkrs 2001 Camino Del Rio S, San Diego 92108 | (619) 298-7772 |
| American Federation 5703 Oberlin Dr, San Diego 92121 | (858) 504-0834 |
| American Federation Government 4265 Fairmount Ave, San Diego 92105 | (619) 283-9082 |
| Southern California-Nevada 8595 Miralani Dr, San Diego 92126 | (858) 621-2660 |
| Sheet Metal Workers 4594 Mission Gorge Pl, San Diego 92120 | (619) 265-0501 |
| Seiu Local 4004 Kearny Mesa Rd, San Diego 92111 | (858) 560-0151 |
| San Diego Sheet Metal Jac 4596 Mission Gorge Pl, San Diego 92120 | (619) 265-2758 |
| San Diego-Imperial Counties 4305 University Ave # 340, San Diego 92105 | (619) 283-5411 |
| San Diego County Constr Tmstrs 4626 Mercury St, San Diego 92111 | (858) 560-2096 |
| S D County Court Employees 525 B St # 250, San Diego 92101 | (619) 264-6685 |
| Poway Federation Of Teachers 11011 Via Frontera # B, San Diego 92127 | (858) 674-2800 |
| Plumbers & Steamfitters 6313 Nancy Ridge Dr, San Diego 92121 | (858) 554-0586 |
| Communications Workers-America 7540 Trade St, San Diego 92121 | (858) 271-9408 |
| Communications Workers-America 7548 Trade St, San Diego 92121 | (858) 695-1509 |
| Painters Local Union 8250 Ronson Rd, San Diego 92111 | (858) 278-1710 |
| Office & Pro Employees Intl 4560 Alvarado Canyon Rd, San Diego 92120 | (619) 640-4840 |
| National Assn Of Govt Employee 309 32nd St, San Diego 92102 | (619) 239-4383 |
| National Assn Of Govt Inspctrs North Island Nas, San Diego 92135 | (619) 437-9131 |
| National Assn-Letter Carriers 6620 Flanders Dr, San Diego 92121 | (858) 550-0333 |
| Municipal Employees Assn 4185 Home Ave, San Diego 92105 | (619) 264-6632 |
| Musicians Association Of Sd Co 1717 Morena Blvd, San Diego 92110 | (619) 276-4324 |
| Field Iron Workers Apprntcshp 5155 Mercury Pt, San Diego 92111 | (858) 505-9414 |
| Fisherman's Union Of America 3940 Hancock St # 219, San Diego 92110 | (619) 221-0202 |
| Glazier's Local Union 8250 Ronson Rd, San Diego 92111 | (858) 278-1615 |
| Local 30 Opeiu 4560 Alvarado Canyon Rd, San Diego 92120 | (619) 516-4409 |
| Iatse San Diego 92103 | (619) 692-0495 |
| Iatse Local 495 1717 Morena Blvd, San Diego 92110 | (619) 275-0125 |
| Ibew 7444 Trade St, San Diego 92121 | (858) 536-7444 |
| Ifpte Local North Island Nas, San Diego 92135 | (619) 435-5976 |
| International Association-Mach 5150 Kearny Mesa Rd, San Diego 92111 | (858) 292-5150 |
| International Union-Oper Engrs 3935 Normal St, San Diego 92103 | (619) 295-3186 |
| International Union-Oper Engrs 444 W Cedar St, San Diego 92101 | (619) 232-0615 |
| Iron Worker's Structural 5155 Mercury Pt, San Diego 92111 | (858) 571-5238 |
| Iuec Local 4636 Mission Gorge Pl # 101, San Diego 92120 | (619) 280-6024 |
| Laborers International Union 4161 Home Ave, San Diego 92105 | (619) 263-6661 |
| United Nurses-Childrens Hosp 6370 Lusk Blvd, San Diego 92121 | (858) 677-9282 |