Brian Gillam

Chief Operating Officer, Ancillary Business Units

Brian Gillam is the chief operating officer of the ancillary business units at Cozen O'Connor.  He earned an M.B.A. from the Kellogg School of Management at Northwestern University, a post-masters certificate in accounting and tax from Drexel University, and a B.S. from Brigham Young University.

Outside the office, Brian is a mentor for Year Up and serves on the CIO Advisory Board for the nonprofit Tech Impact.  



Announcing Transitions for COSECURE and Margolis Healy and Associates

June 05, 2023

COSECURE will now offer comprehensive physical security assessments, while Margolis Healy will focus solely on Clery Act compliance consulting.

Cozen O’Connor Names Brian Gillam New Chief Operating Officer – Ancillary Business Units and Chief Innovation Officer

January 05, 2022

Brian Gillam, formerly Cozen O’Connor’s chief finance and technology officer, assumed the newly created roles of chief operating officer – ancillary business units (ABU) and chief innovation officer.

Cozen O’Connor Cybersecurity Conference Highlighted in The Wall Street Journal

May 09, 2013

In an article titled, "FBI: Delete Passwords of Ex-Employees," The Wall Street Journal highlights the firm's Cybersecurity Conference, held on Wednesday, May 8, at the W Hotel. Trevor Cloak, Joe Dever, Greg Fliszar, Brian Gillam, Steven Haas, Mike Schmidt, Stuart Shorenstein, Matthew Siegel, Ahren Tryon and Dave Walton presented during the seminar, along with Richard Aborn, President, Citizens Crime Commission of New York City and Austin P. Berglas, Assistant Special Agent in Charge for Cyber, FBI New York Field Office. To read the WSJ article, click here.


Is Proactive Cybersecurity Worth the Cost for Small and Midsized Businesses?

August 30, 2023

Given the uncertainty of proactive measures, businesses may be tempted to incur reactive costs if a data breach occurs. Brian Gillam, COO of Cozen O’Connor’s ancillary business units and advisory board member to COSECURE, the firm’s security consulting business, writes for Today's General Counsel on why that's a bad call.


  • Brigham Young University, B.S.
  • Northwestern University - Kellogg Graduate School of Management , M.B.A.
  • Drexel University, Post Graduate Certificate