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Sean Noonan

VP, Life Sciences + Technology Banking

Sean manages client relationships in the technology banking and life sciences portfolios. Prior to joining Square 1, he was a vice president in the technology and life sciences division of Comerica Bank. Sean previously served as vice president of business development for GE Capital’s technology division. He received an MBA from the University of Rochester and a BCE from Villanova University. Sean joined Square 1 in 2015.

Outside the Square

  • Heli-skied the Chugach Range in Alaska.
  • Completed two centuries and one triathlon in two months.
  • Has recently picked up a new sport – chasing his two young children.


  • Life Sciences
  • Technology Banking


  • Pacific Southwest


12481 High Bluff Drive
Suite 350
San Diego, CA

P: 858.436.3537

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