Province/Niagara Region Based
- The Colonel John Butler Branch of the United Empire Loyalists’ Association of Canada
- British Home Children Descendants
- Ontario Ancestors
- Niagara Genealogy
- The Niagara Settlers
- Oshweken Genealogy Society
- Honouring Black History in Niagara Falls
Cities
- Niagara Falls (part of Welland sub-region)
- Port Colborne (part of Welland sub-region)
- St. Catharines (part of Lincoln sub-region)
- Museum
- Historical Society of St. Catharines
- Brock University Special Collections
- Niagara Air Photo Index
- Public Library Special Collections
- Friends of the Loyalist Collection at Brock University
- Salem Chapel BME Church Harriet Tubman Underground Railroad NHS Canada
- Rembering the Citizen Soldiers of Port Dalhousie
- Thorold (part of Welland sub-region)
- Welland (part of Welland sub-region)
Towns
- Fort Erie (part of Welland sub-region)
- Grimsby (part of Lincoln sub-region)
- Lincoln (part of Lincoln sub-region)
- Niagara-on-the-Lake (part of Lincoln sub-region)
- Pelham (part of Welland sub-region)
Townships
- Wainfleet (part of Welland sub-region)
- West Lincoln (part of Lincoln sub-region)
United States Friends
- Western New York Genealogical Society
- Niagara County Genealogical Society
- Bucks County Genealogical Society