Brendan Callahan

Brendan Callahan

Senior Managing Director, Brokerage

Current Responsibilities

Brendan Callahan leads JLL’s Tenant Rep & Integrated Portfolio Services (“IPS”) practices in New England. With over 25 years of commercial real estate experience, Brendan is a Headquarters and Portfolio Strategy specialist with extensive experience leading transformational projects for executives and c-suites .  He has represented clients in the tech, biotech, pharma, financial services, healthcare, and nonprofit sectors, completing all types of real estate transactions in 49 US States and in over 20 countries.


Before joining JLL, Mr. Callahan was part of the development team at LCOR Inc, in New York, where he was a member of the team for the development of one-million-square-foot office building in Lower Manhattan for the FBI, IRS and EPA. As well as, 20-acre master plan development on the former Colgate-Palmolive manufacturing site on the Hudson River which realized over 10 million square feet. Mr. Callahan additionally was part of the multi-billion dollar privatization and renovation of the John F. Kennedy International Airport Arrivals Terminal in New York City.


LeMoyne College, Bachelor of Science

New York University, Graduate Studies, Real Estate

Affiliations, Memberships and Awards

•Founding Member of JLL’s Americas IPS Leadership Council

•Board of Directors (Executive Committee) of Junior Achievement

•Board of Directors CoreNet Global New England

•CoreNet Global Real Estate Service Provider Leadership Award 2011

•Greater Boston Real Estate Board (GBREB),

“Deal of Year” Award Winner in 2010 & 2016

•Massachusetts Biotechnology Council

•Former Member of the Real Estate Board of New York