| Business | Phone |
| Harworth Publishing 7838 Wellington St W, Guelph N1H 6J3 | (519) 767-6059 |
| Journal-Eukaryotic Microbiolog 23 Lyon Ave, Guelph N1H 5C5 | (519) 826-5724 |
| Sovereign Publishing 25 Manor Park Cres, Guelph N1G 1A2 | (519) 826-5999 |
| Venture Guelph Publications 2 Quebec St, Guelph N1H 2T2 | (519) 824-1595 |