About Us

Business relationships & professional ethics – The BCG team will “partner” with you to add value and drive success. Upon the conclusion of your project, you and your staff will feel pride in your joint accomplishments.

BCG’s Principals want you, your staff, and your organization to succeed. BCG will do everything in its power to cause you to do so. The BCG team is comprised of members who live and work by the same core values and strong business ethics upon which the company was founded and its team brings those principles to each and every project.   BCG demands that its staff demonstrate the highest levels of integrity, teamwork, and discipline.

As a BCG client-partner every day you extend to BCG your most precious commodity: your trust. BCG never has, and never will, take that for granted. We at BCG are proud of who we are as a team and what we do for our client-partners.


Mark Brennan_HeadshotChief Executive Officer
Mark H. Brennan

The Founder & CEO of BCG, Mark H. Brennan, is a graduate of the U.S. Air Force Academy (BS & Distinguished Graduate), National University (MA & Distinguished Graduate), and Harvard Business School (MBA). After graduating from the Academy and earning his commission as an officer in the USAF, he proudly served his country for eight years as a fighter pilot and instructor pilot. Following his military service, Mark founded, operated, and grew a number of companies in a diverse set of industries and has many years of experience serving on both private and public company boards.


Susan Brennan_HeadshotChief Operating Officer
Susan Malick Brennan

The Chief Operating Officer of BCG, Susan Malick Brennan, is one of the first women to graduate from the U.S. Air Force Academy, earned military honors, and served seven years in the USAF. Susan has extensive executive-level business experience, with companies such as Fidelity Investments, Merrill Lynch, Sprint, and NV Energy, and has led multiple, enterprise-wide process and organizational improvement efforts and merger planning / implementation projects across a variety of corporate divisions. Her specialties are finance, human resources, and information technology.