| Office / Name | Number |
|---|---|
| Adult Education | 7084687 |
| Ancient Classics | 7086485 |
| Anthropology | 7083570 |
| Biology | 7083845 |
| Bookshop | 6291128 |
| Buildings Office | 7083411 |
| Careers Office | 7083508 |
| Catering (North Campus) | 7083343 |
| Catering (South Campus) | 7083344 |
| Chemistry | 7083815 |
| Communications Office | 7083364 |
| Computer Centre | 7086249 |
| Computer Science | 7083848 |
| CURA (National Office) | 7084688 |
| Dean's Office | 7083359 |
| Development Office (St. Patrick's College) | 7083954 |
| Economics & Finance | 7083934 |
| Education | 7084610 |
| Experimental Physics | 7083313 |
| Faith & Culture | 7083348 |
| Furrow Office | 7083908 |
| Geography | 7083573 |
| German | 6289373 |
| Guest Accommodation & Conference Centre | 7083534 |
| History | 7083314 |
| Industrial Liason Office | 7083359 |
| John Paul II Library | 6286008 |
| Language Centre (c/o Machine Room) | 6289373 |
| Machine Room, Arts | 6289373 |
| Mathematics | 7083913 |
| Mathematical Physics | 7083967 |
| Maynooth University News | 7083954 |
| Medical Centre | 7084710 |
| Music | 6289432 |
| National Centre for Liturgy | 7083477 |
| Personnel Office | 7083940 |
| Philosophy | 7084525 |
| Post Room | 6289063 |
| President's Office (NUI Maynooth) | 6286583 |
| President's Office (St. Patrick's College) | 7083959 |
| Procurement Office | 7084527 |
| PR Office (St. Patrick's College) | 7083954 |
| Quality Promotion Office | 7083520 |
| Prof. Quinn (Chemistry) | 7083547 |
| Registrar's Office | 7083935 |
| Research & Development (Council for) | 6285737 |
| Residence Officer | 7083523 |
| Sociology | 7083528 |
| Sports Office | 7083876 |
| S.T.I.L | 6286470 |
| Students' Union | 7083876 |