Members of the Ontario Seed Potato Growers Association
| Farm Name | Varieties |
|---|---|
| Atkinson Farms Ltd. | Chieftain, Gemstar; Kennebec, SP327 |
| Brubacher Farms | SP327, Chieftain, Kennebec, Gemstar, Superior |
| Ellenberger Organic Farm | AC Chaleur; Chieftain; Fianna; Goldrush; Kennebec; Norland; Onaway; Carlingford; Gem Star Russet; Estima; German Butterball; Red Thumb; Linzer Delicatess; Austrian Crescent; French Fingerling |
| Gogolin Farms | Chietain; Gemstar; Gold Rush; Kennebec; Yukon Gem |
| Holm Potato Farm | Colomba; Milva; Sifra; Ciklamen |
| La Patate Lac-St-Jean | Waneta; Lamoka; SP327 |
| Lynch Ag Ltd | Atlantic; Dakota Pearl; FL Varieties, Waneta |
| Pinery Farms Ltd | AAC Hamer; Arizona; Constance; Eva |
| P&K VanderZaag Farms | Dakota Pearl; Lamoka |
| Pommes de terre Laurentiennes Inc | Allison; Ashley; Colomba; LaBelle Russet; Dark Red Norland; Pomerelle Russet; Lamoka; Pacific Russet |
| Production Sembec Inc. | Kennebec; Chieftain; Gemstar; Gold Rush |
| Sauble Creek Seed Potatoes Co. | AC Chaleur; Dakota Pearl; Dark Red Norland; Yukon Gold |
| Squirrell Farms | Dakota Pearls; Exploits; “Fingerlings”; Huckleberry Gold; Yukon Gem |
* Contact information is on the Home page.
** Some varieties have Plant Breeders rights, see details on Spud Unit page. Some varieties are listed both under the grower and the proprietor/ owner/licensee of the variety. Others are only listed under the owner/licensee even if it is grown in Ontario by a grower.