top of page


PATRICK SULLIVAN has over 25 years of experience in the insurance industry, as an underwriter at American Financial Group, a corporate attorney at the New York Law firm of Debevoise & Plimpton, and an investment banker at Marsh & McLennan Companies.  From 2007 through 2014 he acted as Senior Advisor to Lightyear Capital LLC on their insurance investments, and during that period served on the Board of Directors of Lloyd's underwriter Antares Holdings Limited and US specialty insurer Houston International Insurance Group.  For seven years, he served as Scoutmaster of Boy Scout Troop 43, Princeton, New Jersey, and from 2016 through 2018 he served as President of the Board of Education of Princeton Public Schools.  He currently serves on the Board of Trustees of The Learning Cooperatives, an organization dedicated to self-directed learning.


He holds a BA with honors from Carleton College and a JD from New York University School of Law.

Driscoll, Keith.jpg

KEITH DRISCOLL has been member of the Boston Insurance Brokerage team since 2013, beginning as Vice President of the Workers Compensation Division before being promoted to Executive Vice President/Chief Operation Officer in September of 2017. Mostly recently, Driscoll was appointed CEO and brings with a wealth of experience to the new position from within and outside the insurance industry. Prior to BIB, he held positions at Markel FirstComp in marketing, underwriting and sales management. In addition, Driscoll spent several years in marketing and operations at Anheuser-Busch’s Michelob Championship at Kingsmill and IMG as Director of Operations of the Deutsche Bank Championship, a FedExCup playoff event on the PGA TOUR.

Treen, Casie.jpg

CASIE TREEN has been a member of the Boston Insurance Brokerage team since 2011. She joined BIB as an Intern while pursuing a degree in Finance at Simmons University and most recently held the position of Controller. Treen brings with her a wealth of experience to the new position and a thorough understanding of the company. Since starting as an intern, she has held positions in Administration/Operations along with Finance. She earned her Masters in Accounting from Suffolk University and is currently pursuing a CPA. 

bottom of page