| Organization Name(s) | Located In |
| D J F Health Facility | Timmins |
| Daughters of Isabella, St Michael the Archangel Circle 1302 | Sault Ste Marie |
| Davis, Dr TR, Dental Services | Dryden |
| DB Hearing Clinic | Timmins |
| De Angelis Physiotherapy | Sudbury |
| De Blacam, Dr Killian, Physician | Sudbury |
| De Simone Foot and Ankle Centre Inc | Sudbury |
| Deer Lake First Nation | Deer Lake |
| Definitely Superior Artist-Run Centre and Gallery | Thunder Bay |
| Dennis Franklin Cromarty High School | Thunder Bay |
| Denture Clinic | Thunder Bay |
| Desrosiers, Suzanne, Barrister and Solicitor | Timmins |
| Dhatt, Dr Reena, Physician | Sudbury |
| Diabetes Education Centre of Parry Sound and Area Communities | Parry Sound |
| Diabetes Education Clinic | Marathon |
| Diabetes Education Program | Nipigon |
| Diabetes Management Education Service | Terrace Bay |
| Dial A Chef Custom Catering | Thunder Bay |
| DigNORTH | Dryden |
| Dilico Anishinabek Family Care | Armstrong |
| Dilico Anishinabek Family Care | Longlac |
| Dilico Anishinabek Family Care | Nipigon |
| Dilico Anishinabek Family Care | Marathon |
| Dilico Anishinabek Family Care | Thunder Bay |
| Dilico Anishinabek Family Care, Child Welfare Services | Thunder Bay |
| Dilico Anishinabek Family Care, Health Services | Thunder Bay |
| Dilico Anishinabek Family Care, Mental Health and Addiction Services | Thunder Bay |
| Dilico Anishinabek Family Care, Mental Health and Addiction Services, Youth Outreach Worker Services | Thunder Bay |
| disABILITY Resource Centre for Independent Living | Kapuskasing |
| Disabled Workers Complex Case Network Inc | Thunder Bay |
| District of Cochrane Social Services Administration Board, Emergency Medical Services | Timmins |
| District of Cochrane Social Services Administration Board, Housing Services | Timmins |
| District of Kenora Home for the Aged, Northwood Lodge | Red Lake |
| District of Kenora Home for the Aged, Pinecrest | Kenora |
| District of Kenora Home for the Aged, Princess Court | Dryden |
| District of Nipissing Social Service Administration Board, Employment Resource Centre | Bonfield |
| District of Nipissing Social Service Administration Board, Employment Resource Centre | Mattawa |
| District of Nipissing Social Service Administration Board, Employment Resource Centre | North Bay |
| District of Nipissing Social Service Administration Board, Employment Resource Centre | Temagami |
| District of Nipissing Social Service Administration Board, Employment Resource Centre | Whitney |
| District of Sault Ste Marie Social Services Administration Board | Sault Ste Marie |
| District of Sault Ste Marie Social Services Administration Board, Community Child Care Services | Sault Ste Marie |
| District of Sault Ste Marie Social Services Administration Board, Emergency Medical Services | Sault Ste Marie |
| District of Sault Ste Marie Social Services Administration Board, Ontario Works | Sault Ste Marie |
| District of Sault Ste Marie Social Services Administration Board, Ontario Works, Employment Support Services | Sault Ste Marie |
| District of Sault Ste Marie Social Services Administration Board, Social Housing | Sault Ste Marie |
| District Of Thunder Bay Social Services Administration Board (The) | Thunder Bay |
| District of Thunder Bay Social Services Administration Board (The) | Schreiber |
| District of Thunder Bay Social Services Administration Board (The) | Geraldton |
| District of Thunder Bay Social Services Administration Board (The) | Manitouwadge |
| District of Thunder Bay Social Services Administration Board (The), Children's Services | Geraldton |
| District of Thunder Bay Social Services Administration Board (The), Children's Services | Manitouwadge |
| District of Thunder Bay Social Services Administration Board (The), Children's Services | Schreiber |
| District of Thunder Bay Social Services Administration Board (The), Children's Services | Thunder Bay |
| District of Thunder Bay Social Services Administration Board (The), Housing Services Division | Thunder Bay |
| District of Thunder Bay Social Services Administration Board (The), Housing Services Division, Housing Services Intake | Thunder Bay |
| District of Thunder Bay Social Services Administration Board (The), Housing Services Division, Northern Home Repair Program | Thunder Bay |
| District of Thunder Bay Social Services Administration Board (The), Housing Services Division, Provincial Rent Bank Program | Thunder Bay |
| District of Thunder Bay Social Services Administration Board (The), Ontario Works | Schreiber |
| District of Thunder Bay Social Services Administration Board (The), Ontario Works | Geraldton |
| District of Thunder Bay Social Services Administration Board (The), Ontario Works | Manitouwadge |
| District of Thunder Bay Social Services Administration Board (The), Ontario Works | Thunder Bay |
| District of Thunder Bay Social Services Administration Board (The), Ontario Works, Employment Resource Centre | Thunder Bay |
| District of Thunder Bay Social Services Administration Board (The), Ontario Works, Family Support Program | Thunder Bay |
| District of Thunder Bay Social Services Administration Board (The), Ontario Works, Indigent Funerals Program | Thunder Bay |
| District of Thunder Bay Social Services Administration Board (The), Ontario Works, Learning, Earning, and Parenting Program | Thunder Bay |
| District School Board Ontario North East | Schumacher |
| District School Board Ontario North East, Alternative Education Program | Iroquois Falls |
| District School Board Ontario North East, Programs in Alternative and Continuing Education Centre | Timmins |
| Doctor's Clinic | North Bay |
| DOORS to New Life Refugee Centre Inc | Thunder Bay |
| Dorion Bible Camp | Dorion |
| Dorion Public Library | Dorion |
| Dorion. Township of, Municipal Office | Dorion |
| Dot Com Deliveries | Sudbury |
| Dougall Media, CKPR 91.5 Rock 94 and 103.5 The Thunder | Thunder Bay |
| Dougall Media, CKPR and CHFD TV | Thunder Bay |
| Doula Care Inc | Neelson Township |
| Dowling I D A Pharmacy | Dowling |
| Downtown Heart of the Harbour Business Improvement Area Association | Thunder Bay |
| Dr Harold S Trefry Memorial Centre | Richards Landing |
| Dr Michel Gravel Dentistry Professional Corporation | Kapuskasing |
| Dreamfields Riding Centre | Thunder Bay |
| DriveTest | Thunder Bay |
| DriveTest | Dryden |
| DriveTest | Fort Frances |
| DriveTest | Kenora |
| DriveTest | Sault Ste Marie |
| Drugstore Pharmacy | Sudbury |
| Drugstore Pharmacy | Hanmer |
| Drugstore Pharmacy | Lively |
| Drugstore Pharmacy | Chelmsford |
| Drugstore Pharmacy | Espanola |
| Drugstore Pharmacy | Kapuskasing |
| Drugstore Pharmacy, Superstore Site | Thunder Bay |
| Drugstore Pharmacy (The) | Timmins |
| Drugstore Pharmacy (The) | Kirkland Lake |
| Drugstore Pharmacy (The) | New Liskeard |
| Dryden Aboriginal Women's Resource Centre | Dryden |
| Dryden Area Family Health Team | Dryden |
| Dryden Food Bank | Dryden |
| Dryden Literacy Association | Dryden |
| Dryden Native Friendship Centre | Dryden |
| Dryden Regional Health Centre, Sexual Assault And Domestic Violence Care and Treatment Program | Dryden |
| Dubreuilville Public Library | Dubreuilville |
| Dubreuilville. Township of | Dubreuilville |
| Dufour, Dr Marc, Obstetrician and Gynecologist | Sudbury |
| Dugas, Caroline, Massage Therapy | Sudbury |
| Duke Hunt Historical Museum (The) | Thunder Bay |
| Dulcisono Women's Choir | Thunder Bay |
| Dutchak Scrap Metal | Thunder Bay |
