Desjardins Ontario Credit Union 637 Niagara St., Unit 1 Welland, ON L3C 1A9Contact Desjardins Ontario Credit Unionwww.desjardins.com1-833-337-5668EmailDesjardins Ontario Credit Union 637 Niagara St., Unit 1 Welland, ON L3C 1A9View Larger Map Email Desjardins Ontario Credit Union Name* Email* Phone* Message*CAPTCHANameThis field is for validation purposes and should be left unchanged.