A singular focus on providing an exceptional tenant experience.
With more than 200 million square-feet previously managed and more than $47 billion in acquisitions and sales, the principals of Callahan Capital Partners have built and repositioned some of the largest platforms in the real estate industry.

Callahan acquires great buildings in great locations, then elevates the tenant experience through a focus on community, amenities, and hospitality.
Our mission is to enhance tenant experience by partnering with our office residents to create a productive, enjoyable work environment for their people. We offer personalized services, anticipate needs, and deliver hospitality in every interaction. By responding quickly, curating engaging community events, and addressing concerns proactively, we foster a supportive, collaborative atmosphere where residents feel valued.
Our three-person events team manages everything from boardroom meetings to 400-person functions in addition to 65+ annual tenant only events—fostering community, enhancing experiences, and handling concierge requests as an extension of your team.
Onsite Engineering
To ensure optimal workplace comfort, our onsite team comprised of the Chief Engineer, an Assistant Chief Engineer, five additional engineers, and one apprentice engineers is available 24/7 should a need arise.
Security
Our security director oversees a team of 15 professionals dedicated to ensuring safety for guests 24/7 while also recognizing they serve as both the first and last impression for you and your guests, embodying our commitment to exceptional hospitality.
Wellness
Wellness is a holistic integration of physical, mental, and emotional well-being. Our partner, Kinema Fitness, offers a transformative wellness experience in our 17,000 SF wellness hub and spa with services like personal training, group fitness, aerial yoga, spa treatments, holistic health coaching, dietitians, and healthy food and beverage options.
Janitorial
A clean office is essential for employee well-being and leaves a positive impression on clients. Our janitorial supervisor leads a team of 30+ professionals, delivering thorough and meticulous cleaning services to maintain a healthy, well-kept environment for your business.
Janitorial
Offices at 110 N Wacker are flooded with natural light and offer breathtaking views of Lake Michigan and the Chicago River. The highly efficient floorplans, featuring 14 corner office opportunities, provide an ideal foundation for office designs that enhance productivity while creating a bright, inspiring work environment. Tailored for the modern workforce, 110 N Wacker combines a prestigious, high-performance atmosphere with exceptional service, hospitality, and a strong emphasis on recruitment and retention.
ELEVATED OFFICES BY TENANT
ELEVATED OFFICES BY CALLAHAN
