Brian Duffy

Senior Vice President

Stream Chicago

226 N Morgan St
Suite 500
Chicago, Illinois 60607
M: 630.743.3313

Brian Duffy

Senior Vice President

Brian Duffy joined Stream in 2020 as a Senior Vice President of the firm’s tenant representation team in Chicago. He is responsible for growing all facets of the tenant representation business including serving existing and expanding new client relationships while recruiting and retaining top-tier talent. In addition to driving the tenant representation business in Chicago, Brian is responsible for identifying and executing acquisition and development opportunities.

Prior to joining Stream, Brian spent 7 years at Cushman & Wakefield where he was most recently a Director on the tenant representation team after starting his career as an intern at DTZ. In that role, Brian participated in over 125 transactions valued at close to $600 million. His experience spans all industries including professional services, technology, legal, manufacturing, and finance.

Education & Designations

  • Bachelor of Arts in Public Policy (with Honors), University of Chicago
  • Specialization, Economics & Finance
  • Varsity Football – Captain


  • Co-Chair, Children’s Research Fund Junior Board an affiliate of Lurie Children’s Hospital
  • NAIOP Downtown Office Broker Transaction of the Year, finalist, 2019
  • NAIOP Downtown Office Broker Transaction of the Year, finalist, 2020

Client Experience

  • USG, corporate headquarters restructure – 220,000 SF
  • CCC Information Services, technology headquarters relocation – 150,000 SF
  • 84.51, technology new regional office – 60,000 SF
  • Tressler LLP, law firm headquarters restructure – 45,000 SF