Tenant Advisors, Inc.

Tenant Advisors, Inc.

Commercial Real EstateReal Estate

About Us

Tenant Advisors, Inc. is a commercial real estate firm representing office tenants throughout the Chicago area. We save our clients time and money through our aggressive, unbiased representation. We never represent landlords, nor do we own or manage any commercial real estate. There's never a conflict of interest, so you can count on us to find you exactly the office space you need, and negotiate the very best terms.

Business owners shouldn’t feel overwhelmed by the process of finding and closing on a new office space.

That’s why we provide our clients with unbiased advice, up-to-the-minute market information and aggressive representation in all negotiations.

Our loyalty lies with you, our clients; we never represent landlords or developers. This approach, combined with our extensive experience, proven expertise and dedication to client service, sets us apart from other brokerages.

David A. Ven Horst and Thomas G. Koelzer founded Tenant Advisors Inc. in April 2004. They set out to give tenants a powerful advocate, a voice, during leasing negotiations, through expert representation and unparalleled industry knowledge. Today, Tenant Advisors is known as a tenant-advocacy leader in the Chicago commercial real estate market.

David and Tom began their real estate careers in 1986, working their way up to First Vice Presidents of CB Richard Ellis. Together they have a combined 64 years of commercial real estate experience, closing over 1,300 lease and sale deals and amassing a wealth of industry knowledge and connections along the way.


Tenant Advisors
Tom Koelzer and Dave Ven Horst
Your Schaumburg Based Office Experts
Tom Koelzer and Dave Ven Horst
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Rep/Contact Info

David EtsHokin
First Vice President
Melanie Hartmann
Vice President
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Tom Koelzer
Carlos Tenorio
Senior Vice President
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David Ven Horst
Mike Vizzone
Vice President