GTE Financial GTE Financial Bank was founded in 1935 as Peninsular Telephone Employees Credit Union, which focused on serving the employees of Peninsular Telephone Company. In 2012 renamed itself to GTE financial, as full service financial institution. Nowadays it serves Tampa Bay area. Customer Service Telephone 1(888) 871-2690 Online Banking Login How to Log In: 1. Go to the GTE Financial Bank homepage and click LOGIN Online Banking on the upper right-hand corner of the screen. 2. Enter your username…