Trinity University Trinity University Search | Advanced Search | New Members | Coupons and Discounts | All Categories Other >> Colleges & Universities Trinity University One Trinity Place Center for Innovation and Entrepreneurship San Antonio, TX 78212 | View on Google Maps (210) 999-8241 Visit Site Member since: 1963 If your business isn't here, please contact our Membership Department at (210) 229-2103 or 2107 for information about joining.