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Thomas Gentner | Colliers | Baltimore

Thomas Gentner

Senior Vice President

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Professional Summary

Tom Gentner specializes in commercial and industrial leasing and sales in the state of Maryland. Starting in 1989, his industry experience ranges from property representation for disposition or investment to buyer/tenant representation for acquisition or relocation. 

Tom joined Colliers International after spending 27 years at Transwestern and 5 years with the Baltimore brokerage firm Casey & Associates. During his career in commercial real estate, he has sold over 350 acres of land and leased or sold more than 42 million square feet of commercial and industrial space in the greater Baltimore metropolitan area worth an aggregate value of over $2.2 billion.


  • CoStar Baltimore Power Broker every year since award inception in 2005
  •  Baltimore Business Journal #1 Top Commercial Real Estate Agent (2006)
  • Baltimore Business Journal #2 Top Commercial Real Estate Agent (2001, 2003, 2008)
  • CoStar Top 20 Brokers in Baltimore
  • Casey & Associates “Rookie of the Year” (1990)


MBA, Loyola University Maryland

BBA, Washington & Lee University

Memberships & Involvements

  • National Association of Industrial and Office Properties (NAIOP) 
  • BWI Business Partnership 
  • Building Owners and Managers Association (BOMA) 
  • International Development Research Council (IDRC) 


Service Lines

Tenant Representation

Property Type


My Team

Featured Research

Jul 7, 2021

Suburban Maryland Office Report Q2 2021

Life sciences leasing continues to bolster activity in Suburban Maryland.
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