| | Organization Name(s) | Located In |
| | B B Consultants | Point Edward |
 | Babcock Community Care Centre | Wardsville |
 | Badder Bus Service Limited, Thamesville | Thamesville |
 | Badminton Club of Sarnia | Sarnia |
 | Báhá'i Faith Group of Sarnia | Sarnia |
 | Baldoon Golf and Country Club, Wallaceburg | Wallaceburg |
 | Banwell Community Church | Windsor East |
 | Baseball in Petroilia | Lambton County |
 | Basil Ostas Seniors Home | Woodstock |
 | Bavarian Club | Windsor South |
 | Bayham Medical Centre | Straffordville |
 | Bayham, Municipality of | Straffordville |
 | Bayshore Home Health | Windsor Central |
 | Bayshore Home Health | Sarnia |
 | Beachville District Museum | Beachville |
 | Beacons Of Light Daycare | Sarnia |
 | Beacons of Light Daycare | Sarnia |
 | Beattie Haven Retirement Community | Wardsville |
 | Beattie Haven Retirement Home, Beattie Haven Retirement Community | Chatham-Kent |
 | Bedford United Church of Canada | Windsor West |
 | Bedford United Church of Canada, Open House Seniors' Group | Windsor West |
 | Bedford United Church of Canada, West Side Friendship Group | Windsor West |
 | Beginning Experience Support Group | Sarnia |
 | Beginnings Family Services Pregnancy Care Centre | Woodstock |
 | Believe Life Transitions | Windsor |
| | Belle River and District Horticultural Society | Belle River (Town of) |
 | Belle River Co-operative Homes Inc, Belle Court Homes | Belle River (Town of) |
| | Belle River District Minor Hockey Association | Belle River (Town of) |
 | Belle River Foodland | Belle River (Town of) |
 | Belle River Good Neighbour Fun Band | Belle River (Town of) |
 | Belle River Good Timers Hockey Tournament | Belle River (Town of) |
 | Belle River Ladies Slow Pitch | Belle River (Town of) |
| | Belle River Minor Baseball Association | Lakeshore |
| | Belle River Minor Soccer Club | Belle River (Town of) |
 | Belle River Muskies Club | Lakeshore |
 | Belle River United Church | Belle River (Town of) |
 | Belle River-On the Lake BIA Business Improvement Area | Belle River (Town of) |
 | Belvoir Co-operative Nursery School | Delaware |
 | Berean Community Housing | Sarnia |
 | Bereaved Families of Ontario - Southwest Region | London |
 | Berkshire Apartments, County of Lambton, Housing Services Department, Sarnia | Sarnia |
| | Best Care Sarnia Pharmacy | Sarnia |
| | Best Start Childcare & Children's Services, Chatham-Kent | Chatham-Kent |
| | Beta Sigma Phi | Ontario |
 | Beta Sigma Phi, Chatham Chapters (5) | Chatham |
| | Beta Sigma Phi Sorority, International | Windsor |
 | Bethany Christian Residences of London | London |
 | Bethel Pentecostal Church | Sarnia |
 | Bethel Pentecostal Church | Wallaceburg |
 | Bethel Pentecostal Church, Thedford | Thedford |
 | Bethel Senior Apartments Sarnia Inc, Bethal Manor | Sarnia |
 | Bethel Seniors' Apartments Sarnia-Bethel Manor | Sarnia |
 | Bethel-Maidstone United Church | Maidstone |
 | Better Business Bureau of Western Ontario | London |
| | Beyond Abuse-Emotional, Sexual, Physical | Kingsville |
 | Beyond Words Grief Support | London |
 | Bibles for Missions Thrift Store | Chatham |
 | Bibles for Missions Thrift Store | Sarnia |
 | Bibles for Missions Thrift Store | Woodstock |
 | Bibles for Missions Windsor-Essex County Enterprises Society | Windsor Central |
 | Big Brothers, Sarnia-Lambton | Sarnia |
 | Big Brothers Big Sisters, Chatham-Kent | Chatham |
 | Big Brothers Big Sisters, Ingersoll, Tillsonburg and Area, Ingersoll Office | Ingersoll |
 | Big Brothers Big Sisters, Ingersoll, Tillsonburg and Area, Tillsonburg Office | Tillsonburg |
 | Big Brothers Big Sisters, Of Windsor Essex, In School Mentoring Program | Windsor East |
 | Big Brothers Big Sisters, Sarnia-Lambton | Sarnia |
 | Big Brothers Big Sisters, Windsor Essex | Windsor East |
 | Big Brothers Big Sisters, Windsor Essex, Group Mentoring | Windsor East |
 | Big Brothers Big Sisters, Woodstock and District | Woodstock |
 | Big Brothers Big Sisters, Woodstock and District, Co-op Mentoring Program | Woodstock |
 | Big Brothers Big Sisters, Woodstock and District, Go Girls | Woodstock |
 | Big Brothers Big Sisters, Woodstock and District, In-School Mentoring Program | Woodstock |
 | Big Brothers Big Sisters, Woodstock and District, Teen Mentoring | Woodstock |
 | Big Brothers Big Sisters, Woodstock and District, Traditional Matching | Woodstock |
 | Big Brothers Big Sisters - London and Area | London |
 | Big Brothers Big Sisters - St Thomas-Elgin | St Thomas |
 | Big Sisters, Sarnia-Lambton | Sarnia |
 | Birth, Marriage, and Death Records, Municipality of Chatham-Kent | Chatham |
 | Birthright London | London |
 | Birthright of Greater Windsor | Windsor Central |
 | Bishop Cronyn Memorial Church - Cronyn Coffee House | London |
| | Biz X Magazine | Windsor East |
 | Bkejwanong Children's Centre | Walpole Island |
 | Blackburn Radio | Sarnia |
 | Blackburn Radio, CKSY FM 94.3 / CFCO AM 630 / CKUE FM 95.1 | Chatham |
 | Blackwell United Church | Sarnia |
 | Blandford-Blenheim | Drumbo |
 | Blandford-Blenheim. Parks and Recreation, Administration | Drumbo |
 | Blandford-Blenheim. Protective Services, Fire Department | Drumbo |
| | Blankets for Canada, Windsor-Essex County Chapter | Windsor |
 | Blenheim Golf Club, Blenheim Community Golf Club | Blenheim |
 | Blenheim Skating Club | Blenheim |
 | Blenheim & District Chamber of Commerce | Blenheim |
 | Blenheim and Community Senior Centre | Blenheim |
 | Blenheim and Community Service Foundation | Blenheim |
 | Blenheim and District Ministerial Association | Blenheim |
 | Blenheim and District Minor Baseball Association | Blenheim |
 | Blenheim and District Minor Hockey Association | Blenheim |
 | Blenheim Baptist Church | Blenheim |
 | Blenheim Blades Junior Hockey Team | Blenheim |
 | Blenheim Blast Swim Team | Blenheim |
 | Blenheim Centennial Lions Club | Blenheim |
 | Blenheim Christian Reformed Church | Blenheim |
 | Blenheim Community Slo Pitch League | Blenheim |
 | Blenheim Community Village | Blenheim |
 | Blenheim Evangelical Mennonite Mission Church | Blenheim |
 | Blenheim Gable Rees Rotary Pool | Blenheim |
 | Blenheim United Church | Blenheim |
 | Blenheim Youth Centre | Blenheim |
 | Blenheim-Harwich Horticultural Society | Blenheim |
 | Blenheim-Kent Golden Eagles Gymnastics Club | Blenheim |
 | Blessed Sacrament Roman Catholic Church, Blessed Sacrament and St Agnes Parish Cluster | Chatham |
 | Bloomfield Family Centre, Income Tax Clinics | Windsor |
 | Blossoms Early Childhood Education Centre | London |
 | Blue Water Bridge | Sarnia |
| | Blue Water Bridge Canada | Point Edward |
| | Blue Water Environmental | Point Edward |
 | Blue Water Shiloh Park, Wallaceburg | Wallaceburg |
| | Bluewater and Sarnia Boys Soccer Club | Sarnia |
| | Bluewater Anglers | Sarnia |
 | Bluewater Baptist Church | Sarnia |
| | Bluewater Chordsmen | Sarnia |
| | Bluewater Cloggers | Sarnia |
 | Bluewater Country Leisure Living | Sarnia |
 | Bluewater Denture Clinic | Sarnia |
| | Bluewater Environmental | Point Edward |
 | Bluewater Family Support Services | Parkhill |
 | Bluewater Ferry | Sombra |
| | Bluewater Fun Park | Sarnia |
 | Bluewater Fun Park | Sarnia |
 | Bluewater Gymnastics Club | Sarnia |
 | Bluewater Hall, Hall Rental | Sarnia |
 | Bluewater Health, Norman Street | Sarnia |
 | Bluewater Hearing Centre | Sarnia |
| | Bluewater Machine Knitters | Sarnia |
 | Bluewater Methadone Clinic | Sarnia |
| | Bluewater Methadone Clinic | Sarnia |
| | Bluewater Methadone Clinic - Chatham Site | Chatham |
 | Bluewater Miniatures Club | Sarnia |
| | Bluewater Model Engineering Society | Sarnia |
 | Bluewater Model Yacht Club | Sarnia |
| | Bluewater Pharmacy Ltd. | Sarnia |
 | Bluewater Pond Club | Sarnia |
 | BlueWater Power, saveONenergy HOME ASSISTANCE | Sarnia |
| | Bluewater RC Flyers | Sarnia |
| | Bluewater Rowing Club | Sarnia |
 | Bluewater Sarnia HOG (Harley Owners Group) | Sarnia |
 | Bluewater Ski Club | Sarnia |
 | Bluewater Sleep Disorder Clinic | Point Edward |
 | Bluewater Sleeping Disorder Clinic | Point Edward |
 | Bluewater Trails | Sarnia |
| | Bluewater Wellness Centre | Sarnia |
 | BME Sunshine Club, North Buxton | Merlin |
 | Bobier Villa | Dutton-Dunwich |
 | Bobier Villa, Adult Day Program | Dutton-Dunwich |
 | Bonnie Brae Health Care Centre | Tavistock |
 | Bothwell Area Sports Centre, Bothwell Facilities Arena, Municipality of Chatham-Kent | Bothwell |
 | Bothwell Baptist Church | Bothwell |
 | Bothwell Community Boosters | Bothwell |
 | Bothwell Figure Skating Club | Bothwell |
 | Bothwell Mens Hockey League | Bothwell |
 | Bothwell Wabash United Church, Pastoral Charge: Wabash United and Bothwell United | Bothwell |
 | Bowman Funeral Home | Chatham |
 | Boys and Girls Club of London | London |
 | Boys and Girls Club of London, Children and Youth Programs | London |
 | Boys and Girls Club of London, Children and Youth Programs, After School Bus Program | London |
 | Boys and Girls Club of London, Children and Youth Programs, Bounce and Munch | London |
 | Boys and Girls Club of London, Children and Youth Programs, Evening Adventure and Afternoon Adventure | London |
 | Boys and Girls Club of London, Children and Youth Programs, Social Programs | London |
 | Boys and Girls Club of London, Children and Youth Programs, Supper Club | London |
 | Boys and Girls Club of London, Children and Youth Programs, The Teen Zone | London |
 | Boys and Girls Club of London, Children and Youth Programs, Volunteer and Leadership Programs | London |
 | Boys and Girls Club of London, Horton Street Seniors' Centre | London |
 | Boys and Girls Club of London, Horton Street Seniors' Centre, Accessible Seniors Aquatic Program | London |
 | Boys and Girls Club of London, Seniors' Transit | London |
| | BPSC Canada, 1st Ingersoll Traditional Explorers Association Council | Ingersoll |
| | BPSC Canada, BPSC Ontario, 5th Tillsonburg Alliance | Tillsonburg |
 | Brain Injury Association, Sarnia-Lambton | Sarnia |
 | Brain Injury Association, Windsor-Essex County | Windsor Central |
 | Brain Injury Association of Chatham-Kent, New Beginnings Club | Chatham |
 | Brain Injury Association of London and Region | London |
 | Brain Injury Association of Windsor Essex County, Step Ahead Group for Survivors of Brain Injury | Windsor Central |
 | Brain Tumour Foundation of Canada, Adult Brain Tumor Support Group, Windsor-Essex County Branch | Windsor Central |
 | Brain Tumour Foundation of Canada, Sarnia Support Services | Sarnia |
 | Brainworks | London |
 | Braun-Valley Associates | Sarnia |
| | Breakfast and Snack Programs in Lambton County, Student Nourishment Program, Served During The School Year | Lambton County |
| | Breast Cancer Society of Canada | Sarnia |
 | Breast Cancer Society of Canada, Sarnia Branch | Sarnia |
 | Breastfeeding Help | Point Edward |
 | Breathe Easy Respiratory Home Care | London |
 | Brentwood Recovery Home | Windsor Central |
 | Brentwood Recovery Home, Junior Youth Group | Windsor Central |
 | Brentwood Recovery Home, Men's Program | Windsor Central |
 | Brentwood Recovery Home, Women's Program | Windsor Central |
| | Bridging Family Conflict, Mediation and Information Services | Windsor East |
 | Brigden & Area Seniors Housing | Brigden |
 | Brigden and District Horticultural Society | Brigden |
 | Brigden Community Church | Brigden |
| | Brigden EMS Base | Lambton County |
 | Brigden Pastoral Charge | Brigden |
| | Brigden Pastoral Charge. Brigden United Church | Brigden |
 | Bright Beginnings Early Childhood Centre | London |
 | Bright's Grove Physiotherapy & Wellness Centre | Bright's Grove |
| | Brooke & Alvinston Agricultural Society | Watford |
| | Brooke Alvinston Inwood Commuity Centre, B.A.I. Arena | Alvinston |
 | Brooke-Alvinston (Municipality of ) | Alvinston |
 | Brooke-Alvinston Child Care Centre | Alvinston |
| | Brooke-Alvinston Children's Co-Operative Inc. | Alvinston |
| | Brooke-Alvinston Children's Co-operative Nursery School | Alvinston |
 | Brooke-Alvinston Inwood Community Centre | Alvinston |
| | Brooke-Alvinston. Mayor | Alvinston |
| | Brooke-Alvinston. Municipal Office | Alvinston |
 | Brooker Baptist Church | Cottam |
 | Brookside Amish School | Zorra |
 | Brookside Manor Retirement Home | Aylmer |
 | Brookside Retirement Living | Watford |
 | Brownies / Sparks, Tilbury | Tilbury |
| | Buffers West Model Railway Society | Sarnia |
 | Building Blocks for Better Babies | Windsor Central |
 | Building Healthy Babies Program, Chatham-Kent Public Health Unit | Chatham |
 | Bulimia Anorexia Nervosa Association | Windsor Central |
 | Bulimia Anorexia Nervosa Association, Clinical Treatment | Windsor Central |
 | Bulimia Anorexia Nervosa Association, Family and Friends Support Group | Windsor Central |
 | Bulimia Anorexia Nervosa Association, Health Promotion Education Programs | Windsor Central |
 | Bulimia Anorexia Nervosa Association, New Directions | Windsor Central |
 | Bulimia Anorexia Nervosa Association, Relapse Prevention | Windsor Central |
 | Bulimia Anorexia Nervosa Association, Specialized Diagnostic Assessment | Windsor Central |
 | Business Development Bank of Canada, Windsor | Windsor Central |
 | Business Development Bank of Canada - London Area Office | London |
 | Business Enterprise Centre of Sarnia-Lambton | Sarnia |
 | Business Improvement Area, Downtown Ingersoll | Ingersoll |
 | Business Improvement Area, Downtown Woodstock | Woodstock |
| | Business Improvement Area, Norwich | Norwich |
 | Business Improvement Area, Tilbury | Tilbury |
| | Business Improvement Area, Tillsonburg | Tillsonburg |
 | Business Improvement Association, Blenheim | Blenheim |
 | Business Improvement Association, Wallaceburg | Wallaceburg |
 | Buxton National Historic Site and Museum, The Buxton Historical Society | Chatham-Kent |
 | Byejwanong Children's Centre, Wallaceburg | Wallaceburg |
 | Byron Woods Montessori School | London |