| Business | Phone |
| Master's Christian Academy 155 Green St, Gardner 1440 | (978) 632-8622 |
| Wachusett Hls Christian School 100 Colony Rd, Gardner 1440 | (978) 874-6432 |
| Waterford Street Elem School 62 Waterford St, Gardner 1440 | (978) 632-1605 |
| Stetson School Marketing 164 W Broadway, Gardner 1440 | (978) 249-3800 |
| Caps Educational Cllbrtv 53 School St, Gardner 1440 | (978) 632-2208 |
| Sacred Heart School 53 Lynde St, Gardner 1440 | (978) 632-0950 |
| Daka Mt Wachusett Comm Coll 444 Green St, Gardner 1440 | (978) 632-6666 |
| Holy Rosary School 99 Nichols St, Gardner 1440 | (978) 632-8656 |
| Prospect School 75 E Broadway, Gardner 1440 | (978) 632-1606 |
| Driver Education Unlimited 66 Parker St # 16, Gardner 1440 | (978) 632-4855 |
| Elm Street School 160 Elm St, Gardner 1440 | (978) 632-1673 |
| Helen Mae Sauter Elementary 130 Elm St, Gardner 1440 | (978) 632-5480 |
| Gardner High School 200 Catherine St, Gardner 1440 | (978) 632-1600 |
| Gardner Middle School 297 Catherine St, Gardner 1440 | (978) 632-1603 |
| Gardner Superintendent-Schools 130 Elm St, Gardner 1440 | (978) 632-1000 |