| Business | Phone |
| A & S Tax Svc 1235 Gorham St, Newmarket L3Y 7V1 | (905) 830-0001 |
| H & R Block Canada Inc 17600 Yonge St, Newmarket L3Y 4Z1 | (905) 898-2300 |
| H & R Block Canada Inc 1111 Davis Dr, Newmarket L3Y 7V1 | (905) 853-7539 |
| J & B Tax Svc 1100 Davis Dr #25, Newmarket L3Y 7V1 | (905) 895-8321 |
| Judd's Tax & Bookkeeping Rr 2 Lcd 1, Newmarket L3Y 4V9 | (905) 775-3091 |
| Softron Tax 17600 Yonge St, Newmarket L3Y 4Z1 | (905) 853-1666 |
| Tax Partners 1065 Davis Dr #4, Newmarket L3Y 2R9 | (905) 836-8755 |
| Tax-Savers 130 Davis Dr #207, Newmarket L3Y 2N1 | (905) 895-7208 |
| Typing Tax & Office Svc 62 Howlett Ave, Newmarket L3Y 5S5 | (905) 895-9963 |
| Williams Payne & Assoc 17817 Leslie St #2, Newmarket L3Y 8C6 | (905) 953-1144 |
| Cummings & Assoc 238 Main St S, Newmarket L3Y 3Z5 | (905) 895-0692 |