| | Organization Name(s) | Located In |
 | E A Richardson British Methodist Episcopal Church (BME) | Chatham-Kent |
 | E L K Energy Inc | Essex (Town of) |
 | Eaglerock Youth Centre | Sarnia |
| | Earlscourt Apartments, County of Lambton. Housing Services Department. Sarnia | Sarnia |
| | East Elgin Community Assistance Program | Aylmer |
 | East Elgin Family Health Team | Aylmer |
| | East Lambton Community Health Centre, North Lambton Community Health Centre | Watford |
 | East Lambton Health Centre | Watford |
 | East London United Church Outreach (ELUCO) | London |
 | East Side Pride | Chatham |
 | East Zorra-Tavistock | Hickson |
 | East Zorra-Tavistock. Parks and Recreation, Administration | Hickson |
 | East Zorra-Tavistock. Protective Services, Fire Department | Hickson |
 | Easter Seal Society (The), Sarnia Lambton County | Mooretown |
 | Easter Seal Society (The), Windsor Essex County | Windsor West |
 | Easter Seals Ontario - London Regional Office | London |
| | Eastern Canada Response Corporation Ltd | Lambton County |
| | Eastlawn Gardens Apartments, County of Lambton. Housing Services Department. Sarnia | Sarnia |
 | Eating Disorders Therapy London | London |
 | Eben-Ezer Christian School | Chatham |
| | ECOA Emergency Communications Ontario INC | Essex County |
 | École Élémentaire L'Envolée | Windsor Central |
 | École Élémentaire L'Envolée, La Garderie Les Petites Mains Windsor Inc | Windsor Central |
 | Economic Development Services & Tourism, Chatham-Kent | Chatham |
 | Eden Villa Retirement & Assisted Living | Chatham |
 | EFBC Non-Profit Housing Corporation - Eastwood Apartments for Seniors | St Thomas |
 | EFBC Non-Profit Housing Corporation - Pinetree Gardens | St Thomas |
 | El Salvador Association of Windsor | Windsor Central |
 | elearnnetwork.ca, Windsor-Tecumseh | Windsor East |
| | Electrical Safety Authority | Ontario |
 | Elegance Schools Inc | London |
 | Elgin and St Thomas Housing Corporation | St Thomas |
 | Elgin Counselling and Mediation Centre | St Thomas |
 | Elgin County Public Library | St Thomas |
 | Elgin County Public Library, Aylmer Branch Library | Aylmer |
 | Elgin County Public Library, Belmont Branch Library | Belmont |
 | Elgin County Public Library, Dutton Branch Library | Dutton-Dunwich |
 | Elgin County Public Library, Port Burwell Branch Library | Port Burwell |
 | Elgin County Public Library, Port Stanley Branch Library | Port Stanley |
 | Elgin County Public Library, Rodney Branch Library | Rodney |
 | Elgin County Public Library, Shedden Branch Library | Shedden |
 | Elgin County Public Library, Springfield Branch Library | Springfield |
 | Elgin County Public Library, Straffordville Branch Library | Straffordville |
 | Elgin County Public Library, West Lorne Branch Library | West Lorne |
| | Elgin Elder Abuse Resource Committee | Elgin County |
 | Elgin Manor | St Thomas |
 | Elgin Middlesex Oxford Workforce Planning and Development Board (The) | London |
 | Elgin St Thomas Public Health | St Thomas |
 | Elgin St Thomas Public Health, Child and Family Health, Family Planning Clinic | St Thomas |
 | Elgin St Thomas Public Health, Early Years | St Thomas |
 | Elgin St Thomas Public Health, Healthy Living and Safety | St Thomas |
 | Elgin St Thomas Public Health, Healthy Living and Safety, Active Elgin | St Thomas |
 | Elgin St Thomas Public Health, Prenatal, Postpartum and Early Childhood Programs | St Thomas |
 | Elgin St Thomas Public Health, Sexual Health | St Thomas |
 | Elgin St Thomas Public Health, Sexual Health, Sexual Health Drop-In Clinic | St Thomas |
 | Elgin St Thomas Public Health, Sexual Health, Sexually Transmitted Infection Clinic | St Thomas |
 | Elgin, County of | St Thomas |
 | Elgin/St Thomas Youth Employment Counselling Centre - Talbot Teen Centre | St Thomas |
 | Elgin-Oxford Legal Clinic | Woodstock |
 | Elgin-Oxford Legal Clinic | St Thomas |
| | Elgin-St Thomas Connects | Elgin County |
 | Elgin-St Thomas United Way | St Thomas |
| | Elijah House Food Bank, River City Vineyard | Lambton County |
 | Elim Bible Chapel | Arkona |
| | Elim Bible Chapel | Lambton County |
| | Elm Children's Centre | Glencoe |
 | ELM Children's Centre | Glencoe |
 | Elmwood Avenue Presbyterian Church | London |
 | Elmwood Place | London |
 | Embro and Area Seniors Housing Corporation | Embro |
 | Embro and Area Seniors Housing Corporation, Cambrocourt Manor | Embro |
 | Emerald Isle Dance Society | Windsor West |
 | Emerald Isle Society - Irish Canadian Club | London |
 | Emmanuel Baptist Church | Oldcastle |
 | Emmanuel Baptist Church | Chatham |
 | Emmanuel Congregational Church, Ridgetown | Ridgetown |
 | Emmanuel United Church | Windsor Central |
| | Emmaus Childhood Abuse Recovery and Education Services | London |
| | Employment Resource Centre, Lambton County Human Resource Administrative Services Inc. | Sarnia |
 | Employment Resource Centre & Community Connections Sarnia Inc. | Sarnia |
 | Employment Services Elgin | St Thomas |
 | Employment Solutions | Woodstock |
 | Employment Transitions | Sarnia |
| | EMS (Administration) Department, County of Lambton | Petrolia |
 | Endurance Ministries Church | Harrow |
 | Enniskillen (Corporation of the Township of) | Petrolia |
| | Enniskillen. Municipal Office | Petrolia |
 | Enodmaagejig Social Services - Place of Helpers, Walpole Island First Nation | Wallaceburg |
 | Ensemble, Disability Parent Support | Essex |
| | ENSPEC Environmental Consultants | Bright's Grove |
 | Entegrus Inc., Chatham-Kent PUC | Chatham |
 | Entegrus Inc., SaveOnEnergy Home Assistance Program, Green Saver | Chatham-Kent |
 | Environmental Accident Protection Inc | Petrolia |
 | ENWIN Utilities, saveonenergy Home Assistance Program | Windsor Central |
 | Epilepsy Support Centre, Chatham/Kent Branch | Chatham-Kent |
| | Epilepsy Support Centre, Windsor/Essex Branch | Windsor |
 | Epilepsy Support Centre - London Branch | London |
| | Epilepsy Support Centre, Sarnia Branch | Sarnia |
 | Epworth United Church | Kingsville (Town of) |
| | Erie Ramblers Motorcycle Club | Mersea |
 | Erie Shores Quilt Guild, Ridgetown Museum | Ridgetown |
 | Erie St Clair Clinic, Addictions Centre | Windsor East |
| | Erie St Clair Community Care Access Centre | Sarnia |
| | Erie St Clair Community Care Access Centre, Sarnia Clinic | Sarnia |
 | Erie St Clair Community Care Access Centre, Windsor-Essex Branch, Facility Placement Division | Windsor East |
 | Erie St Clair Local Health Integration Network | Chatham |
 | Erie St Clair Local Health Integration Network, Windsor-Essex Branch, Community Care Access Centre | Windsor East |
 | Erie St Clair Local Health Integration Network, Windsor-Essex Branch, Community Care Access Centre, In-Home Services | Windsor East |
 | Erie St. Clair Community Care Access Centre | Chatham |
 | Erie St. Clair Community Care Access Centre - Sarnia Branch | Sarnia |
 | Erie St. Clair Diabetes Regional Coordination Centre | Windsor Central |
 | Erie Street United Church, Ridgetown | Ridgetown |
 | Erie Street/Via Italia Business Improvement Association | Windsor Central |
 | Erie Thames Powerlines | Ingersoll |
 | Erie Thames Powerlines, saveONenergy Home Assistance Program | Ingersoll |
 | Erie Wildlife Rescue | Windsor West |
 | Ernest Medical Walk-In Clinic | London |
| | Essex & Kent Building Trades Council | Windsor East |
 | Essex Accessibility Advisory Committee | Essex (Town of) |
| | Essex and Community Historical Research Society | Essex |
 | Essex and District Ministerial Association | Cottam |
 | Essex Area Food Bank | Essex |
 | Essex Area Food Bank, Holiday Programs | Essex |
 | Essex Baptist Church | Essex (Town of) |
| | Essex Business Improvement Area | Essex (Town of) |
 | Essex Christian Reformed Church | Essex (Town of) |
 | Essex Community Futures Development Corporation | Essex (Town of) |
 | Essex Community Services | Essex (Town of) |
 | Essex Community Services, Coats for Kids Program | Essex (Town of) |
 | Essex Community Services, Community Information Essex | Essex (Town of) |
 | Essex Community Services, Foot Care Clinic, Essex | Essex (Town of) |
 | Essex Community Services, Foot Care Clinic, Harrow | Harrow |
 | Essex Community Services, Income Tax Clinics | Essex (Town of) |
 | Essex Community Services, Security Reassurance Program | Essex (Town of) |
 | Essex Community Services, Transportation Program | Essex (Town of) |
| | Essex County Agricultural Hall of Fame | Essex (Town of) |
 | Essex County Associated Growers | Leamington (Town of) |
| | Essex County Black Historical Research Society | Windsor |
 | Essex County Chinese Canadian Association | Windsor Central |
| | Essex County Dental Society | Windsor Central |
 | Essex County Diversion Program, Youth Justice Committee | Windsor West |
 | Essex County Diversion Program, Youth Outreach Program | Windsor West |
 | Essex County Diversion Program Inc, Extrajudicial Judicial Sanctions | Windsor West |
 | Essex County Diversion Program Inc, Project Intervention | Windsor West |
| | Essex County Farm Safety Association, Kids Farm Safety Day | Woodslee |
 | Essex County Federation of Agriculture | Essex (Town of) |
| | Essex County Historical Society | Windsor Central |
 | Essex County. Library System, Administration Office | Essex (Town of) |
 | Essex County. Library System, Amherstburg Branch Library | Amherstburg (Town of) |
 | Essex County. Library System, Comber Public Library | Comber |
 | Essex County. Library System, Cottam Public Library | Cottam |
 | Essex County. Library System, Essex Public Library | Essex (Town of) |
 | Essex County. Library System, Harrow Public Library | Harrow |
 | Essex County. Library System, Kingsville Public Library | Kingsville (Town of) |
 | Essex County. Library System, Lakeshore Branch Library | Belle River (Town of) |
 | Essex County. Library System, LaSalle Public Library | LaSalle |
 | Essex County. Library System, LaSalle Public Library, Income Tax Clinics | LaSalle |
 | Essex County. Library System, Leamington Public Library | Leamington |
 | Essex County. Library System, McGregor Public Library | McGregor |
 | Essex County. Library System, Ruthven Public Library | Ruthven |
 | Essex County. Library System, Stoney Point Public Library | Stoney Point |
 | Essex County. Library System, Tecumseh Branch Library | Tecumseh |
 | Essex County. Library System, Woodslee Public Library | Woodslee |
 | Essex County Medical Society | Windsor Central |
| | Essex County Pharmacists Association | Windsor South |
 | Essex County Stamp Club | Windsor South |
 | Essex County Steam and Gas Engine, Museum | McGregor |
 | Essex County Steam and Gas Engine, Show | McGregor |
 | Essex County. Administration Office | Essex (Town of) |
 | Essex County. Community Services, Lodging & Rest Home Program | Essex |
 | Essex County. Council | Essex (Town of) |
 | Essex County. Elections | Essex (Town of) |
| | Essex Energizers Rope Skipping Team | Essex (Town of) |
 | Essex Free Press, The | Essex (Town of) |
 | Essex Gospel Community Church | Essex (Town of) |
| | Essex Kent Lambton District Health Council | Chatham |
| | Essex Law Association | Windsor Central |
| | Essex Minor Baseball Association | Essex (Town of) |
 | Essex Minor Hockey Association | Essex (Town of) |
 | Essex Power Corporation | Essex |
| | Essex Rattlers | Windsor |
 | Essex Region Conservation Authority | Essex (Town of) |
 | Essex Region Conservation Authority, Conservation Areas, Holiday Beach Conservation Area | Essex |
 | Essex Region Conservation Authority, Conservation Areas, John R Park Homestead Conservation Area | Harrow |
 | Essex Retirees Social Club | Essex (Town of) |
 | Essex United Church | Essex (Town of) |
 | Essex Walk-in Clinic | Essex (Town of) |
 | Essex-Windsor Solid Waste Authority | Essex (Town of) |
 | Essex-Windsor Solid Waste Authority, Essex Windsor Recycling Centre | Windsor East |
 | Essex Youth Centre | Essex (Town of) |
 | Essex Youth Centre, Summer Programs | Essex (Town of) |
 | Essex. Fire and Rescue Service, Essex Station 1, Essex | Essex (Town of) |
 | Essex. Fire and Rescue Service, Essex Station 2, Gesto | Gesto |
 | Essex. Fire and Rescue Service, Essex Station 3, Harrow | Harrow |
 | Essex. Municipal Office | Essex (Town of) |
 | Essex. Municipal Office, Animal Control | Essex (Town of) |
 | Essex. Municipal Office, Building Department | Essex (Town of) |
 | Essex. Municipal Office, Colchester South Harbour | Colchester South |
 | Essex. Municipal Office, Department of Community Services, Essex Fun Fest | Essex (Town of) |
 | Essex. Municipal Office, Department of Community Services, Parks and Recreation | Essex (Town of) |
 | Essex. Municipal Office, Drainage Department | Essex (Town of) |
 | Essex. Municipal Office, Parks and Recreation, Colchester North Anderdon Community Centre, Co-An Park | McGregor |
 | Essex. Municipal Office, Parks and Recreation, Essex Arena & Sports Complex | Essex (Town of) |
 | Essex. Municipal Office, Parks and Recreation, Essex Recreation Complex | Essex (Town of) |
 | Essex. Municipal Office, Public Works, Garbage and White Goods | Essex (Town of) |
| | Essex-Kent Bluegrass Oldtime and Folk Music Association | Essex (Town of) |
| | Essex-Kent Chartered Accountants Association | Windsor |
 | Essex-Kent Junior Farmers | Chatham |
 | Essex-Kent Mennonite Historical Association | Leamington |
 | Essex-Windsor EMS, Land Ambulance Services, Administration | Essex |
 | Essex-Windsor EMS, Land Ambulance Services, Headquarters | Windsor |
 | Essex-Windsor Solid Waste Authority, Transfer Station No 2 | Leamington |
| | Estonian Association of London | London |
 | Et Cetera Shoppe | Leamington |
 | ETAC Employment Resource Centre - Ontario Employment Assistance Services | London |
| | Ethnocultural Council of London | London |
 | Evangel Community Church | Chatham |
 | Evangel Pentecostal Tabernacle, Dresden | Dresden |
 | Evangel Tabernacle | Wheatley |
 | Evangelical Mennonite Mission Church | Leamington |
 | Everest College of Business, Technology and Health Care - London | London |
 | Executive Class Catering, At Your Service To Your Door | Windsor East |
 | Executive House Inc | Chatham |
| | Exmouth Street, County of Lambton. Housing Services Department. Sarnia | Sarnia |
 | Express Employment Professionals | Sarnia |
 | Extendicare London | London |
 | Extendicare London, Short Stay Beds | London |
 | Extendicare Port Stanley | Port Stanley |