Brian Duffy

Brian Duffy

Senior Vice President
Stream Chicago

800 W. Fulton Street
Suite 750
Chicago, IL 60607

Proven Performance

Professional Experience

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

Prior to joining Stream, Brian spent the start of his career at Cushman & Wakefield (previously Equis, then DTZ) where he had served as a Director on the tenant representation team prior to his departure. Throughout his career, Brian has helped both local Chicago clients as well as national portfolio clients develop and execute their real estate strategies across office and industrial assets. His experience spans industries including logistics, food & beverage, professional services, technology, legal, manufacturing, and finance. In his tenure, Brian has participated in over 200 transactions valued over $1B.

Clients Represented

  • USG
  • CCC Information Services
  • 84.51
  • Tressler LLP
  • C.H. Robinson
  • Complemar
  • Elite Transit Solutions
  • Fifth Wheel Freight
  • Orbus
  • Shipbob


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

Affiliations & Designations

  • 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