| Business | Founded | Contacts |
|---|---|---|
| Royal Ontario Museum | 1914 | 313 |
| Royal Astronomical Society | 1996 | 1 |
| Event Network | 2006 | - |
| Royal Ont Museum Publications | - | 1 |
| Royal Ontario Museum Libraries | - | - |
| Musee Royal De L'Ontario | 2007 | - |
| Ont Gov | 2007 | - |
| Information Technology Services, Royal Ontario Museum | - | 1 |
| Jason rottgen | - | 1 |
| Northland Power Inc. | - | 1 |
| St Andrew Goldfields Ltd. | - | 1 |
| Victoria University | - | 26 |
| Jamie Kennedy At The Museum | - | - |
| Marel Contractors | - | - |
| ROM Museum Store | - | - |
| Daphne Cockwell Gallery | - | - |
| Druxy's ROM Café | - | - |
| Food Studio Cafe | - | - |
| James and Louise Temerty Galleries | - | - |
| John David & Signy Eaton Court | - | - |
| McLaughlin Planetarium | - | - |
| Michael Lee-Chin Crystal | - | - |
| RBC Glass Room | - | - |
| ROM Contemporary Culture - Roloff Beny Gallery | - | - |
| ROM Theatre | - | - |
| Shreyas and Mina Ajmera Gallery | - | - |
| Toronto Taste at the ROM | - | - |
| C5 Restaurant | 2016 | - |
| Druxy's Famous Deli | - | - |
| Eaton Theatre | - | - |
| Iranian Heritage Day at the Royal Ontario Museum - ROM | - | - |
| ROM Shop | 2019 | 1 |
| Toronto Ghost Walk | - | - |
| Performance Terrace Helga and Mike Schmidt | - | - |
| ROM Egypt Gallery | - | - |
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