| K and J Pharmacy | Clinton |
| Kagita Mikam Aboriginal Employment and Training, Bancroft Office | Highlands East |
| Kaitlyn Bates Initiative | Cobourg |
| Kalon Services | Cobourg |
| Kare Bear Support Services | West Grey |
| Karis Disability Services, Central East District Office, Karis Disability Sevices | Peterborough |
| Karis Disability Services, Simcoe County | |
| Kawartha - Haliburton Crime Stoppers | Kawartha Lakes |
| Kawartha / Haliburton Victim Services, Kawartha/Haliburton Victim Services, Victim Crisis Assistance Ontario | Kawartha Lakes |
| Kawartha Birth and Lactation, No physical address | Peterborough |
| Kawartha Cardiology Clinic | Peterborough |
| Kawartha Community Midwives, Stewart St | Peterborough |
| Kawartha Conservation | Lindsay |
| Kawartha Family Court Assessment Service | Peterborough |
| Kawartha Food Share | Peterborough |
| Kawartha Home & Health Care Services Inc | Peterborough |
| Kawartha Lakes Autism Support, Kennedy Place | Kawartha Lakes |
| Kawartha Lakes Centre of Hope | Kawartha Lakes |
| Kawartha Lakes Community Futures Development Corporation | Kawartha Lakes |
| Kawartha Lakes Food Source, 164 Needham Street - Lindsay | Kawartha Lakes |
| Kawartha Lakes Paramedic Service - Headquarters, Kawartha Lake Paramedic Service, Headquarters | Kawartha Lakes |
| Kawartha Lakes Pregnancy Centre | Lindsay |
| Kawartha Lakes Public Library, Bethany Branch | Clarington |
| Kawartha Lakes Public Library, Bobcaygeon Branch | Kawartha Lakes |
| Kawartha Lakes Public Library, Coboconk branch | Kawartha Lakes |
| Kawartha Lakes Public Library, Dalton Branch | Kawartha Lakes |
| Kawartha Lakes Public Library, Dunsford Branch | Kawartha Lakes |
| Kawartha Lakes Public Library, Fenelon Falls Branch | Kawartha Lakes |
| Kawartha Lakes Public Library, Kinmount, Kinmount Branch | Kawartha Lakes |
| Kawartha Lakes Public Library, Kirkfield Branch | Kawartha Lakes |
| Kawartha Lakes Public Library, Lindsay Branch, Lindsay | Kawartha Lakes |
| Kawartha Lakes Public Library, Lindsay, Library Administration | Kawartha Lakes |
| Kawartha Lakes Public Library, Little Britain Branch | Kawartha Lakes |
| Kawartha Lakes Public Library, Norland Branch | Norland |
| Kawartha Lakes Public Library, Oakwood Branch | Kawartha Lakes |
| Kawartha Lakes Public Library, Omemee Branch | Kawartha Lakes |
| Kawartha Lakes Public Library, Woodville Branch | Kawartha Lakes |
| Kawartha Lakes Small Business & Entrerpreneurship Centre | Kawartha Lakes |
| Kawartha North Family Health Team, Bobcaygeon - East St S, Bobcaygeon Clinic | Bobcaygeon |
| Kawartha North Family Health Team, Fenelon Falls - Colborne St, Fenelon Falls Clinic | Kawartha Lakes |
| Kawartha Pine Ridge District School Board, Campbellford, Literacy and Basic Skills | Trent Hills |
| Kawartha Pine Ridge District School Board, Cobourg - D'Arcy St, Centre for Individual Studies | Cobourg |
| Kawartha Pine Ridge District School Board, Literacy and Basic Skills, Cobourg - D'Arcy St | Cobourg |
| Kawartha Pine Ridge District School Board, Literacy and Basic Skills, Peterborough - McDonnel St | Peterborough |
| Kawartha Pine Ridge District School Board, Ontario Youth Apprenticeship Program, Peterborough - Fisher Dr | Peterborough |
| Kawartha Pine Ridge District School Board, Peterborough - Fisher Dr, Education Centre, Peterborough - Fisher Dr | Peterborough |
| Kawartha Pine Ridge District School Board, Peterborough - McDonnel St, Peterborough Alternative and Continuing Education | Peterborough |
| Kawartha Sexual Assault Centre | Peterborough |
| Kawartha Therapy Services | Peterborough |
| Kawartha Village Co-op | Peterborough |
| Kawartha Youth Unlimited, Haliburton Highlands Youth Unlimited, Haliburton Highland's Youth Unlimited Chapter | Haliburton |
| Kawartha Youth Unlimited, Kawartha Lakes - Mailing Address, Kawartha Lakes Chapter | Kawartha Lakes |
| Kawartha Youth Unlimited, Free Income Tax Clinics | |
| Kawartha-Haliburton Children's Foundation | Peterborough |
| Kayla House | Orillia |
| Kearney and Area Public Library | Kearney |
| Kearney Fire and Emergency Services | Kearney |
| Kearney. Municipal Office, Kearney Community Centre | Kearney |
| Kearney. Municipal Office | Kearney |
| Keating's Pharmacy | Seaforth |
| Keene Lions Club | Otonabee-South Monaghan |
| Kelly Shires Breast Cancer Foundation, Kelly Shires Breast Cancer Snow Run | Newmarket |
| Kempenfelt Bay Athletic Club, Wrestling Team | Barrie |
| Kempenfelt Bay School | Innisfil |
| Kempenfelt Bay Yacht Club | Barrie |
| Kempenfelt Community Players | Barrie |
| Kempenfelt Quilters Guild | Barrie |
| Ken Marek Lifegates Unlimited, Telephone Service | Barrie |
| Kerry's Place Autism Services - Simcoe County, Barrie | Barrie |
| Kerry's Place Autism Services, Durham, Oshawa, Autism Residential and Support Services | Oshawa |
| Kevin Roderick Music, Music For Seniors | Barrie |
| Keystone Child, Youth and Family Services, Birth to Senior Kindergarten Mental Health Program, Owen Sound - 3rd Ave W | Owen Sound |
| Keystone Child, Youth and Family Services, Counselling Program, Owen Sound - 3rd Ave W | Owen Sound |
| Keystone Child, Youth and Family Services, Owen Sound - 3rd Ave W | Owen Sound |
| Keystone Child, Youth and Family Services, Owen Sound - 3rd Ave W, Keystone Prevention and Community Programs | Owen Sound |
| Keystone Child, Youth and Family Services, Unpublished, Live-In Treatment Program | Owen Sound |
| Kidney Foundation of Canada | Mississauga |
| Kidney Foundation of Canada, Barrie, Kidney Clothes Program | Barrie |
| Kidney Foundation of Canada, Mailing Address, Kidney Car Program | |
| Kidney Foundation of Canada, Mississauga, Ontario Branch | Mississauga |
| Kidney Foundation of Canada (The), Kidney Foundation, Living Donor Expense Reimbursement Program | |
| Kidney Patients Association Barrie & South Simcoe, No physical location | Barrie |
| Kids & Us Community Childcare and Family Education Centres, Community Childcare Program, Markdale | Grey Highlands |
| Kids & Us Community Childcare and Family Education Centres, Dundalk, Community Childcare Program | Southgate |
| Kids & Us Community Childcare and Family Education Centres, Durham, Community Childcare Program | West Grey |
| Kids & Us Community Childcare and Family Education Centres, Holstein, Community Childcare Program | Southgate |
| Kids & Us Community Childcare and Family Education Centres, Markdale | Grey Highlands |
| Kids & Us Community Childcare and Family Education Centres, Osprey, Community Childcare Program | Grey Highlands |
| Kids & Us Community Childcare and Family Education Centres, Paisley, Community Childcare Program | Arran-Elderslie |
| Kid's Closet | Barrie |
| KIDS Co-op Nursery School | Kincardine |
| Kids First Inc., Kids First Inc | Havelock |
| Kids Help Phone | Toronto |
| Kids Help Phone, Crisis Text Line | Toronto |
| Kids Street Cooperative Nursery School | Saugeen Shores |
| Kin Canada, Clinton Kinsmen Hall, Clinton & District Kinsmen | Clinton |
| Kin Canada, Belgrave Community Hall, Kinsmen Club of Belgrave | North Huron |
| Kin Canada, Goderich Kinsmen Club | Goderich |
| Kin Canada, Hensall, Kinsmen Club of Hensall & District | Hensall |
| Kin Canada, Listowel, Kinsmen Club of Listowel | Listowel |
| Kin Canada, Mailing Address Only, Kinsmen Club of Monkton & District | Monkton |
| Kin Canada, Mailing Address Only, St Marys Kinsmen Club | St Marys |
| Kin Canada, Stratford, Stratford Kinsmen Club | Stratford |
| Kinark Child and Family Services, Barrie - Simcoe St, Family, Individual, and Group Counselling | Barrie |
| Kinark Child and Family Services, Barrie - Simcoe St, Live-In Treatment | Barrie |
| Kinark Child and Family Services, Barrie - Simcoe St, Simcoe County Child and Youth Crisis Services | Barrie |
| Kinark Child and Family Services, Barrie - Simcoe St, SNAP - Stop Now And Plan program | Barrie |
| Kinark Child and Family Services, Barrie ABA Centre, Autism Services - Centre-based Applied Behavioural Analysis (ABA) | Barrie |
| Kinark Child and Family Services, Kinark Outdoor Centre, Kinark Outdoor Center | Minden Hills |
| Kinark Child and Family Services, Midland Office, Family, Individual, and Group Counselling | Midland |
| Kinark Child and Family Services, Peterborough Office - The Parkway Centre, Kinark Child and Family Services - Peterborough | Peterborough |
| Kinark Child and Family Services, STRIVE, Peterborough - Kenner Collegiate, 633 Monaghan Road, Peterborough | Peterborough |
| Kinark Child and Family Services, Kinark Supervised Access Centre, Lindsay, Supervised Access Centre | |
| Kinark Child and Family Services, Kinark Supervised Access Centre, Peterborough Office - The Parkway Centre, Supervised Access Centre | Peterborough |
| Kincardine and Area Christmas Day Community Meal, Kincardine | Kincardine |
| Kincardine Community Garden | Kincardine |
| Kincardine Community Services Association, Christmas Assistance | Kincardine |
| Kincardine Family Health Team | Kincardine |
| Kincardine Food Bank | Kincardine |
| Kincardine Lighthouse Museum | Kincardine |
| Kincardine Pride, No Physical Address | Kincardine |
| Kincardine Trails Association | Kincardine |
| Kincardine. Municipal Office, Municipal Administration Centre, Emergency Management | Kincardine |
| Kincardine. Municipal Office, Municipal Administration Centre | Kincardine |
| Kincardine. Municipal Office, Station 12 (Kincardine), Fire Department | Kincardine |
| Kincardine. Municipal Office, Various locations, Rest Stations for Extreme Weather Relief | Kincardine |
| Kincardine's Winter Coat Drive | Kincardine |
| King Edward Choir | Barrie |
| Kinsmen Club of Barrie, K-40 Club | Barrie |
| Kinsmen Club of Barrie, Mailing Address, K-40 Women | Barrie |
| Kinsmen Club of Lindsay, Toy Central, Annual Toy Drive | Kawartha Lakes |
| Kirkton Agricultural Society, Kirkton Fall Fair | West Perth |
| Kirkton Horticultural Society, Kirkton-Woodham Community Centre | West Perth |
| Kiwanis Club of Stratford, Army-Navy Hall | Stratford |
| Kiwanis Festival of the Performing Arts | Stratford |
| Kiwanis International, Mailing Address, Kiwanis Club of Barrie | Barrie |
| KLH Housing Corporation, Haliburton, Kawartha Lakes Haliburton Housing Corporation | Kawartha Lakes |
| Knights of Columbus, Goderich, Goderich Father Nagle Council 5420 | Goderich |
| Knights of Columbus, Stratford, Stratford Kilroy Council 1431 | Stratford |
| Knights of Columbus, Mitchell, Mitchell Monsignor T J McCarthy Council 9252 | Mitchell |
| Knights of Columbus, Listowel, Listowel Mary and Joseph Council 8168 | Listowel |
| Knights of Columbus, Barrie, Columbus Hall Barrie | Barrie |
| Knights of Columbus, Barrie | Barrie |
| Knights of Columbus, Huntsville, Council 7851 | Huntsville |
| Knights of Columbus, Walkerton, Knights of Columbus, Walkerton | Brockton |
| Knights of Columbus Huronia Council #1627, Penetanguishene | Penetanguishene |
| Knights of Huronia, Knight Haven Bowling Lanes, Conference & Banquet Hall, Meeting Facilities | Penetanguishene |
| Knollcrest Lodge, Community Outreach Services - Foot Care Clinic | Perth East |
| Knollcrest Lodge, Community Outreach Services - Lifeline Emergency Response System | Perth East |
| Knollcrest Lodge, Community Outreach Services - Meals on Wheels | Perth East |
| Knollcrest Lodge, Community Outreach Services - Perth East Transportation | Perth East |
| Knollcrest Lodge, Community Outreach Services - Social and Dining Programs | Perth East |
| Knollcrest Lodge, Community Outreach Services - Volunteer Transportation | Perth East |
| Knollcrest Lodge, Community Outreach Services - Volunteer Visiting and Telephone Reassurance | Perth East |
| Knollcrest Lodge, Community Outreach Services - Wellness for Seniors | Perth East |
| Knollcrest Lodge, Community Outreach Services | Perth East |
| Knollcrest Lodge | Perth East |
| Knox Holstein, Amos Dromore and Knox Normanby Presbyterian Pastoral Charge, Holstein Presbyterian Church, Christmas Hampers Egremont / Holstein area | Southgate |
| Knox Presbyterian Church, Gift of Grace Soup Kitchen, St Paul's United Church | Midland |
| Knox Presbyterian Church, Goderich | Goderich |
| Knox Presbyterian Church Bayfield, Bayfield | Bayfield |
| Knox Stratford, Knox Presbyterian Church-Knox Stratford, Cancer Care Mission Wigs & Accessories | Stratford |
| Knox Stratford, Knox Presbyterian Church-Knox Stratford | Stratford |
| Koalaroo Preschool, Barrie | Barrie |
| KOOL 107.5 FM, Barrie | Barrie |
| Krasman Centre | Richmond Hill |