Is Brightside part of ATB? Kate September 02, 2021 15:30 Updated Yep! You bet and we are proud to be part of ATB (our BFF)! Learn more about our BFF here. If you have questions about your ATB account, please contact ATB directly. Related articles What is Brightside? Where is Brightside based? How do I spend the money in my Brightside bucket? How do I send money to a Brightsider? My immediate family member has passed away and they're a Brightsider. What do I do?