Your landlord has broker representation. Shouldn’t you?

TW Commercial represents commercial tenants — not professional landlords. We serve businesses throughout Boulder, Denver, and the Front Range through finding the right space, negotiating the best terms, reducing total occupancy costs, and making the right real estate decisions. Our mission is to protect your interests.

Start Your Property Search

Your landlord has broker representation. Shouldn’t you?

TW Commercial represents commercial tenants — not professional landlords. We serve businesses throughout Boulder, Denver, and the Front Range through finding the right space, negotiating the best terms, reducing total occupancy costs, and making the right real estate decisions. Our mission is to protect your interests.

Start Your Property Search
30+ Years Experience | Tenant / Buyer Agents | Google Reviews
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Will Gensburg

Founder & CEO, Nuvania
Boulder, Colorado

A CLIENT STORY

They Didn’t Just Find Me a Property. They Understood What I Was Trying to Build.

They understood me…They protected me…They negotiated for me…They stayed with me.

Home 2I contracted with TW Commercial in the summer of 2025 to help me find the right location to launch Nuvania, a group sauna and cold plunge facility in Boulder. Mark and Isaac immediately took the time to know and understand me as an entrepreneur, my budget, my tolerance for risk and what I was ultimately trying to build before they began to present properties to me. They helped me narrow down our search to an ideal property and then negotiated heavily on my behalf, procuring lease terms and concessions to my lease I am confident I would not have gotten on my own. Since signing, they have remained engaged when they haven’t needed to be, helping my nascent business get every chance of success through knowledge and connections they have had through their many years in commercial real estate. If my business succeeds and I expand Nuvania beyond the facility we’re launching in the Fall of 2026, TW Commercial will be my first call.Home 3

YOUR COMMERCIAL LEASE IS TOO IMPORTANT TO LEAVE TO CHANCE.

A commercial lease can affect a business for years—and the landlord has experienced professionals negotiating to protect their interests.

You shouldn’t have to navigate that process alone.

What’s at stake:

Cost
Rent, escalations, operating expenses, tenant improvements.

Flexibility
Renewal options, expansion, contraction, assignment and exit provisions.

Risk
Personal guarantees, unexpected obligations, unfavorable clauses.

Time
Negotiating a complex transaction takes expertise and enormous amounts of time.

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WHAT DOES GREAT TENANT REPRESENTATION GET YOU?

Improve Your Bottom Line
Reduce occupancy costs and improve the economics of your deal.

Better Lease Terms
Protect your business with stronger provisions and greater flexibility.

Leverage Negotiation
Level the playing field with experienced representation on your side.

Better Decisions
Know whether renewing, relocating, expanding, or buying makes the most sense.

Peace of Mind
Know that someone experienced is looking out for your interests.

OUR PEOPLE

Home 6MARK CASEY

CEO & Managing Broker

With more than 30 years in commercial real estate, Mark has helped hundreds of businesses make smarter leasing, development, and investment decisions. His broad experience spans brokerage, architecture, construction, development, and finance. He brings expertise, integrity, and a genuine commitment to his clients’ success.
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Home 7ISAAC GUANAJUATO

Commercial Real Estate Broker | Expert in Property Sales, Leasing & Investment Strategy

With more than 20 years in commercial real estate, Isaac helps clients navigate complex sales, leasing, and investment decisions. His strategic approach, market insight, and negotiation skills help clients maximize value and achieve their goals.
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Clients Who Trust Us

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Google reviews

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TenantWisdom LLC
5.0
Based on 22 reviews
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Testimonials

Mitchell Wiens

"We first met Mark through an interest in one of his Boulder property listings. Mark is very knowledgeable of the local market and effective at navigating the search process. He really listened to our specific facility needs to match us with the right potential properties on the market. We were able to focus on a select few properties that best met our needs and work closely with Mark to close on our new space in time to support our transition. We really appreciated Mark’s insight and ability to manage the entire process for us.” - President and COO, MMA Design LLC
TW Commercial - Representing Businesses Leasing Space
2020-01-09T21:45:56+00:00
"We first met Mark through an interest in one of his Boulder property listings. Mark is very knowledgeable of the local market and effective at navigating the search process. He really listened to our specific facility needs to match us with the right potential properties on the market. We were able to focus on a select few properties that best met our needs and work closely with Mark to close on our new space in time to support our transition. We really appreciated Mark’s insight and ability to manage the entire process for us.” - President and COO, MMA Design LLC

Sylvia Bernstein

"Mark Casey was the ideal broker for our facility search for so many reasons. He was responsive and easy to get in touch with, always patient with our questions and concerns, and extremely knowledgeable about the local market. We definitely plan to engage him again for our next search!" - President, The Aquaponic Source
TW Commercial - Representing Businesses Leasing Space
2020-01-09T21:44:47+00:00
"Mark Casey was the ideal broker for our facility search for so many reasons. He was responsive and easy to get in touch with, always patient with our questions and concerns, and extremely knowledgeable about the local market. We definitely plan to engage him again for our next search!" - President, The Aquaponic Source

Bob Baile

"We are in the beer business not the commercial real estate business. Mark Casey helped us to understand the market and to make an educated decision in leasing our new facility. We are very happy we used TW Commercial℠ as our tenant agent." - President of Twisted Pine Brewing Company
TW Commercial - Representing Businesses Leasing Space
2020-01-09T21:43:47+00:00
"We are in the beer business not the commercial real estate business. Mark Casey helped us to understand the market and to make an educated decision in leasing our new facility. We are very happy we used TW Commercial℠ as our tenant agent." - President of Twisted Pine Brewing Company

Dominique Gettliffe

"We had already been looking for a few years when we started working with Mark, and nearly gave up on finding the right place to buy for my architecture office. It took us awhile to clarify exactly what we were looking for. Mark was very patient with us, and once we got on the right track with knowing what we wanted, within a week had found us a place that was better than anything we could ever have imagined. Mark was wonderful to work with: knowledgeable, responsive and clear. He kept us well-informed and made the process easy and enjoyable." - Gettliffe Achitecture, Boulder, CO
TW Commercial - Representing Businesses Leasing Space
2020-01-09T21:42:23+00:00
"We had already been looking for a few years when we started working with Mark, and nearly gave up on finding the right place to buy for my architecture office. It took us awhile to clarify exactly what we were looking for. Mark was very patient with us, and once we got on the right track with knowing what we wanted, within a week had found us a place that was better than anything we could ever have imagined. Mark was wonderful to work with: knowledgeable, responsive and clear. He kept us well-informed and made the process easy and enjoyable." - Gettliffe Achitecture, Boulder, CO

Steve McIntosh

"Mark Casey has been Now & Zen's real estate agent since 1998 and has served our company well. His understanding of the market, together with his entrepreneurial nose for opportunity, make him a consummate real estate professional. I highly recommend Mark to anyone interested in commercial real estate." Founder and President, Now & Zen, Inc.
TW Commercial - Representing Businesses Leasing Space
2020-01-09T21:40:26+00:00
"Mark Casey has been Now & Zen's real estate agent since 1998 and has served our company well. His understanding of the market, together with his entrepreneurial nose for opportunity, make him a consummate real estate professional. I highly recommend Mark to anyone interested in commercial real estate." Founder and President, Now & Zen, Inc.

Scott Hendrickson, PhD

"Thanks so much for sharing your expertise and for your hard work on our move to new office space. We appreciate the way you helped us distill what we needed and wanted to a clear set of requirements and then provided us with many great choices of office space fitting our needs. Your experience making offers and counter-offers, and guidance in walking us through a somewhat complicated sublease process is much appreciated. We also appreciate the way you kept the project on track when we got busy, overwhelmed by the options, and the negotiations got bogged down. Thanks again, and best wises in all that you do." Director Business Development, Tech-X Corporation
TW Commercial - Representing Businesses Leasing Space
2020-01-09T21:39:18+00:00
"Thanks so much for sharing your expertise and for your hard work on our move to new office space. We appreciate the way you helped us distill what we needed and wanted to a clear set of requirements and then provided us with many great choices of office space fitting our needs. Your experience making offers and counter-offers, and guidance in walking us through a somewhat complicated sublease process is much appreciated. We also appreciate the way you kept the project on track when we got busy, overwhelmed by the options, and the negotiations got bogged down. Thanks again, and best wises in all that you do." Director Business Development, Tech-X Corporation

Maury Dobbie

"Mark, I want to thank you for assisting us in obtaining office space for my two companies. Thank you for being part of the Fort Collins incubator program and assisting companies like ourselves with their real estate needs." - Executive Director, Colorado Energy Research Collaboratory
TW Commercial - Representing Businesses Leasing Space
2020-01-09T21:38:10+00:00
"Mark, I want to thank you for assisting us in obtaining office space for my two companies. Thank you for being part of the Fort Collins incubator program and assisting companies like ourselves with their real estate needs." - Executive Director, Colorado Energy Research Collaboratory
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TW Commercial - Representing Businesses Leasing Space

From our offices in Boulder and denver, Colorado

From our headquarters in Boulder, Colorado, TW Commercial℠ provides Tenant Representation and Buyer Agency expertise to along the Front Range of Colorado. And through our global network, we can connect you with the top exclusively Tenant Rep Advisors throughout North America and beyond. 

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HAVE QUESTIONS?

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