| Denise Li | lz | — |
| Dentisterie Hochelaga | Dentists | 123dentist.com |
| Denys Jr Renaud | zr | — |
| Desmeules Jean-Pierre | Real Estate Offices, Courtier immobilier | facebook.com |
| Devost Vic Courtier | Real Estate Offices, Courtier immobilier | vicdevost.com |
| Dextraseo | Information Technologies (IT) | dextraseo.com |
| Di La | di | — |
| Diagnos | Life Sciences and Health Technologies (LSHT) | diagnos.ca |
| Diane De Montigny | qe | — |
| Digital District Inc | Information Technologies (IT) | digital-district.fr |
| Distribution Doyon | Bakery Supplies | distributiondoyon.com |
| DistrictWare Inc. | Information Technologies (IT) | districtware.com |
| Dl Ld | ld | — |
| Do Ni | do | — |
| Domaine du Lac Noir | Real Estate Offices, Courtier immobilier | — |
| Donald et M Gaudreault | et | — |
| Dong Mei Guo Courtier INC Via Capitale Sélect | Real Estate Offices, Courtier immobilier | suttonquebec.com |
| DoorDash | Information Technologies (IT) | — |
| Doris Et Francine Genois | et | — |
| Doussou Formation | Tout Enseignement et savoir, Tout Informatique et internet | doussou-formation.com |
| Douville Moffet & Associés Inc | Real Estate Offices, Courtier immobilier | — |
| Du Campanile Résidence | du | — |
| Duvaltex | Tout Entreprises et services | duvaltex.com |
| Dysphasie Québec | Tout Communautés et société | tdlquebec.com |
| E Bherer | e | — |
| E Cloutier | e | — |
| E Gagnon | e | — |
| E Ha | ha | — |
| E Jolicoeur | e | — |
| E Joyal | e | — |
| E Kakindi | e | — |
| E Lemay | e | — |
| E M E Walsh | e | — |
| E Martineau | e | — |
| E Me Roy | me | — |
| E Pelletier | e | — |
| E Shink | e | — |
| E Therrien | e | — |
| EBC inc. | Tout Entreprises et services | ebcinc.com |
| Ed Chernis | zd | — |
| Ed Sweeney | zd | — |
| Eddy Di Gaetano | di | — |
| Egan Courtier Immobilier Agréé | Real Estate Offices, Courtier immobilier | egan.qc.ca |
| ei3 Technical Services | Information Technologies (IT) | — |
| El Amine Abada | el | — |
| Ends in Four Games | Information Technologies (IT) | endsinfourgames.com |
| Engel & Völkers Boutique Vieux-Québec | Real Estate Offices, Courtier immobilier | quebec.evrealestate.com |
| Equipe William Boutin - Courtiers Immobiliers REMAX | Real Estate Offices, Courtier immobilier | williamboutin.com |
| Erudite.AI | Information Technologies (IT) | erudite.ai |
| Es Pe | es | — |
