John Dunphy, CCIM, SIOR

John Dunphy, CCIM, SIOR

Managing Director

Current Responsibilities

John Dunphy is a Managing Director at JLL and a 32-year veteran of the Tampa Bay industrial market. John leads the Tampa industrial team with a focus on the entire Tampa MSA surrounding Polk, Pinellas and Hillsborough counties.  John’s career experience as a landlord rep, tenant rep and investment consultant includes over 25M square feet leased/sold totaling over $2.75B in transaction value.  With this experience, John fosters the growth and advancement of JLL’s industrial team members and the team’s footprint within the Tampa MSA.


Prior to joining JLL, John was Managing Director of Industrial Services and Partner at Colliers International Tampa Bay specializing in the sale and leasing of user and investment properties. John has been involved in over 3M square feet of ground-up construction for clients ranging from speculative developments for owners to build-to-suit requirements for owner-occupiers. 

Education and Affiliations

John earned a B.A. in Finance from The University of South Florida. He received the CCIM designation from the Commercial Investment Real Estate Institute and a SIOR designation from the Society of Industrial and Office Realtors. Fewer than 2,000 commercial real estate brokers hold both of these prestigious designations.


T: +1 813 387 1312

C: +1 727 744 2356