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Jason Simon | Colliers | Chicago - Rosemont

Jason Simon

Principal and Senior Vice President

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Professional Summary

Clients rely on my superior understanding of Chicago market dynamics, transaction management and lease negotiation expertise, and my vast network of relationships within the real estate community. I specialize in representing corporate users in the acquisition, disposition and leasing of office space throughout Chicago and nationally. In addition, I lease approximately 3 million square feet of office space throughout the Chicago suburbs on behalf of institutional and private landlords.

I maintain a strong network of relationships with Chicagoland architects, general contractors, interior designers and relocation specialists. My clients appreciate my attention to detail, resourcefulness and unwavering commitment to protecting their best interests.

Prior to joining Colliers International, I spent a number of years with Grubb & Ellis Company's office advisory group. 


I was recognized by Colliers International as an Everest Award Winner in 2012-2017. This honor is reserved for the company’s top 10% of producers in North America.

I recently completed some of the largest lease transactions in the suburban Chicago marketplace including:

  • U.S. Cellular - 331,000 SF
  • Valent BioSciences - 107,000 SF
  • ATT - 106,000 SF
  • Weber Stephen Products - 60,000 SF
  • Protective Life - 55,000 SF
  • Fifth Third Bank - 53,000 SF
  • Financial Management Systems - 51,000 SF
  • Advocate Health Partners - 47,000 SF
  • Sagent Pharmaceuticals - 40,000 SF
  • Network Services - 34,000 SF
  • Convergent Technologies -31,000 SF


  • BA, Hamilton College
  • Real Estate Broker's License, Illinois

Memberships & Involvements

  • Member, LINK Unlimited Scholars
  • Former Board Member, Northwestern Memorial Auxiliary Board
  • Former Board Member, Anti-Defamation Auxiliary Board
  • Former Committee Member, Orange and Blue Alumni Circle for Milton Academy in Milton, MA


  • FCA Partners
  • John B. Sanfilippo & Sons
  • Westport Capital Partners
  • RMS Properties
  • KeyBank
  • Aegon
  • The Missner Group
  • Lincoln Financial
  • BF Construction Code Services
  • American Landmark Properties
  • Hodges Loizzi Eisenhammer Rodick & Kohn
  • 7-Eleven
  • Gannett Publishing
  • CPT Networks
  • Johnson Service Group
  • Dennis Uniform Services
  • John Hancock Financial Network
  • Sherwin Williams


“We were more than satisfied with the work you did. You impressed us with your high degree of professionalism, and your never-ending attempt to satisfy our needs. I can say without any hesitation that you and your firm represent the top of your field. I would certainly recommend you to anyone needing commercial real estate brokering services, and, in fact welcome such opportunity.”    

Mark Pucci, President
Soarus L.L.C.


“While there were a great many problems with the building and build-out, Jason was exceptional throughout. While this is only the second tenant rep I’ve dealt with, he was helpful from start to finish. He was available and responsive at all times. He represented my interests and worked hard to secure the best deal on my behalf. Your firm is well represented with him on your team. I am thrilled that I had the chance to work with him, and I will not hesitate to refer him to anyone I know in need of his services.” 

Ronald Dickstein, Managing Partner
Great Lakes Financial Partners


“Over the last year you have provided Georgia HAP Administrators, Inc. with exceptional advice regarding our company’s decision to relocate our Chicago office or restructure our lease with our current landlord. As we worked through the real estate process, your attention to detail and your ability to analyze how our decisions would impact GHA’s ability to achieve our financial and operational goals were critical.”

Valerie Todaro, Chief Executive Officer
Georgia HAP Administrators, Inc.


“On behalf of the firm, I want to thank you for the outstanding service you provided us in securing our new lease. We are very pleased with the financial terms you negotiated and look forward to many successful years in our newly remodeled space. After visiting numerous buildings we finally reached a deal with our building owners only to have them realize, that through their own mistake, they could not perform the deal. Our search continued. Even though it meant twice as much work for you, your professionalism and enthusiasm never wavered. Through the many additional building tours, your knowledge of the buildings and their owners as well as the current market rentals continued to impress.”

Robert Kohn, Founding Partner
Hodges, Loizzi, Eisenhammer Rodick & Kohn LLP


Service Lines

Tenant Representation, Landlord Representation

Property Type


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