Crosswinds Holdings Customer Service Phone Numbers Customer Service: 1-800-439-5136   Crosswinds Holdings Headquarters Info, Email, Phone number, Website and live chat Information The Crosswinds Holdings Headquarters is 365 Bay Street, Suite 400 Toronto, Ontario  5H 2V1 Canada.   If you searching for Crosswinds Holdings Customer Service Number, you are at the right place. In this post, we have provided a