| Academic Advising Center | C118 | 775-1339 |
| Academic Computer Lab | E137/139 | 775-1372 |
| Assessment | C414 | 775-1397 |
| Admission | C103 | 775-1801 |
| Adventure Education/Outdoor Leadership | N112 | 775-1126 |
| Bookstore | N109 | 775-1190 |
| Bursar's Office | C102 | 775-1301 |
| Business Office | S429 | 775-1300 |
| Cafeteria/Food Services | Core/Dining Commons | 775-1177 |
| Central Services (shipping/receiving/duplicating) | CB11 & CB14 | 775-1711 or 775-1727 |
| Community Education/Workforce Development | DTC | 775-1605 |
| Computerized Placement Testing | C110 | 775-1821 |
| Continuing Education | DTC | 775-1661 |
| Cooperative Education Services | N253 | 775-1818 |
| Counseling | C423 | 775-1337 |
| Dance Studio | E108 | 775-1902 |
| Development | N211 | 775-1426 |
| Disability & Accessibility Services | C423 | 775-1812 |
| Distance learning | C302 | 775-1481 |
| Educational Technology Center | S306 | 775-1842 |
| Electricians | C05 | 775-1703 |
| Facilities Management | N116 | 775-1700 |
| Financial Aid | C102 | 775-1109 |
| Fitness Center | E109 | 775-1901 |
| Food Services/Cafeteria | Core/Dining Commons | 775-1177 |
| Foundation Office | D104/105 | 775-1600 |
| GCC Professional Association (GCCPA) | E116E | 775-1259 |
| Health Records | N348 | 775-1430 |
| GED/HiSET testing | C110 | 775-1821 |
| Human Resources/Personnel | S424 | 775-1313 |
| Information Technology | N313 | 775-1350 |
| Instructional Technology | C302 | 775-1481 |
| Library | Core 3rd floor | 775-1830 |
| Mail Services | N101 | 775-1712 |
| Math Studio | North 4th floor | |
| Marketing & Publications | N203 | 775-1420 |
| Music | | 775-1228 |
| Outdoor Leadership Program (OLP) | N112 | 775-1126 |
| Peer Tutoring Program | C401 | 775-1330 |
| Pioneer Valley Institute | DTC B22 | 775-1671 |
| President's Office | C202 | 775-1410 |
| Publications | N205 | 775-1364 |
| Public Safety | S110 | 775-1212 |
| Purchasing | N408 | 775-1309 |
| Registrar's Office | C103 | 775-1807 |
| Senior Symposium | DTC | 775-1681 |
| Stockroom/Shipping & Receiving | N116 | 775-1711 |
| Student Activities & Community Service | C216 | 775-1200 |
| Student & Academic Affairs | C205 | 775-1816 |
| Telecommunications & Technical Support | | 775-1001/1716 |
| Testing Center | C110 | 775-1147/1821 |
| Transcripts & Records | C103 | 775-1807 |
| Transfer Office | C118 | 775-1207 |
| Veteran's Services | N215 | 775-1825 |
| Wellness Center | C423 | 775-1332 |
| Women's Resource Center | C212 | 775-1114 |
| Workforce Development & Community Education | DTC | 775-1607 |
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