| Business | Phone |
| Oshawa Transit 710 Raleigh, Oshawa | (905) 579-2471 |
| Harman Park Arena 795 Douglas St, Oshawa L1H 5C8 | (905) 723-8025 |
| Hillsdale Manor 600 Oshawa Blvd N, Oshawa L1G 5T9 | (905) 579-1777 |
| Ontario Works Durham 200 John St W #200, Oshawa L1J 2B4 | (905) 432-2929 |
| Northview Community Ctr 150 Beatrice St E, Oshawa L1G 7T6 | (905) 432-1984 |
| Ontario Health Insurance 419 King St W, Oshawa L1J 2K5 | (905) 434-3700 |
| Oshawa Children's Arena 155 Arena St, Oshawa | (905) 725-8071 |
| Oshawa Animal Svc Ctr 919 Farewell St, Oshawa L1H 6N8 | (905) 723-3488 |
| Oshawa Senior Citizens Ctr 43 John St W, Oshawa L1H 1W8 | (905) 576-6712 |
| Oshawa Municipal Airport 1200 Airport Blvd, Oshawa L1H 7K4 | (905) 576-8146 |
| Robert Mc Laughlin Gallery 72 Queen St, Oshawa L1H 3Z3 | (905) 576-3000 |
| Durham Employee Assistance 850 King St W, Oshawa L1J 2L5 | (905) 721-6109 |
| Whitby Civic Recreation Ctr 555 Rossland Rd E, Oshawa L1K 1K8 | (905) 666-1991 |
| Central Lake Ontario Cnsrvtn 100 Whiting Ave, Oshawa L1H 3T3 | (905) 579-0411 |
| Children Services 850 King St W, Oshawa L1J 2L5 | (905) 721-6140 |
| Civic Auditorium Complex 99 Thornton Rd S, Oshawa L1J 5Y1 | (905) 725-1111 |
| Durham Social Svc 505 Wentworth St W, Oshawa L1J 6G5 | (905) 436-6747 |
| Durham Regional Health Dept 419 King St W #180, Oshawa L1J 2K5 | (905) 433-8901 |
| Durham Adult Protective Svc 850 King St W, Oshawa L1J 2L5 | (905) 721-6129 |
| Durham Family Counselling 505 Wentworth St W, Oshawa L1J 6G5 | (905) 434-5855 |
| Durham Homes For The Aged 850 King St W, Oshawa L1J 2L5 | (905) 721-6110 |
| Durham Social Svc 850 King St W, Oshawa L1J 2L5 | (905) 721-0622 |
| Family Services Durham 850 King St W, Oshawa L1J 8N5 | (905) 721-6120 |