30+ YEARS OF EXCELLENCE
About Cissell Mueller
Commercial Real Estate Team
Robert D. Cissell, CCIM
Owner/Managing Broker
Robert (Bob) graduated from the University of Missouri - St. Louis with a Bachelors degree in Accounting. Bob formed Cissell Mueller Construction, Inc. and Cissell Mueller Company, L.L.C with Duane Mueller in 1992. As a Managing Member of the company, Bob has helped guide the business from a small bedroom office into a respectable multi-million dollar firm.
Duane Mueller
Owner/Broker
Duane Mueller graduated from the University of Missouri at St. Louis with a Bachelor of Science in Public Administration with an emphasis in Economics. In 1992, Mr. Mueller, a former journeyman carpenter, formed Cissell Mueller Company, LLC and Cissell Mueller Construction, Inc. with Robert D. Cissell.
Danny Wapelhorst
Vice President
Mr. Wapelhorst has been with Cissell Mueller in different capacities since 2002. Danny earned his real estate license in 2014 and oversees in-house owned properties along with outside listings. Danny also oversees the property management for all Cissell Mueller owned properties.
Stacy Youmans
Property Accountant
Ms. Youmans has been a member of the Cissell Mueller team since 1999. Stacy has worn many hats at Cissell Mueller as Property Accountant and Property Manager. Currently her main role is to accurately report tenant payments received and due and perform account analysis and reconciliation when questions arise.
Roxanne Preis
Marketing Manager, Research Analyst, Commercial Brokerage Coordinator
Roxanne Preis has been with Cissell Mueller Company since May 2023 and is currently the Marketing Manager, Research Analyst, and Commercial Brokerage Coordinator. Prior to joining Cissell Mueller Company, Roxanne started her career in real estate by supporting the brokerage department at Colliers Turley Martin Tucker starting in 2000 (Cassidy Turley – DTZ – Cushman Wakefield) and has continued to work in commercial real estate related fields for the last 23 years. During that time, Roxanne had offices in St. Louis, New York, and Chicago.
Alaina Cissell-Miller
Dollar General and Marketing Administrator
Alaina currently serves as the Dollar General and Marketing Administrator for Cissell Mueller Company. She has been with the company since May 2025.
WE FOCUS ON YOUR REAL ESTATE NEEDS, SO YOU CAN FOCUS ON BUSINESS
Commercial Real Estate Services
Real Estate Brokerage
Property Development
Investment Properties
"Cissell Mueller are great people. They’re easy to talk to and really care about what and when things need to be done, before you even ask them. They go beyond!"
Bob Wamhoff
Director of Operations
"They are a broad-ranged, full-service, competitive company with skill sets that go from end to end. That’s unusual in the marketplace."
Mike Gent
Partner
"Cissell Mueller’s consistent, frequent and clear communications make a world of difference."
Greg Harvey
Manager
"We appreciate their honesty, integrity and high standards of quality."
Jeff Neihouse
Facilities Director
"They were our realtor, our broker and our construction company. We also appreciate their experience working on dental offices."
Dr. Andrew M. Kim
Owner
"They will be strong advocates for your project. They have complete in-house capabilities to take your project from concept through construction, allowing for the most cost-effective design while providing aggressive schedules."
Ryan Swanson
Civil Engineer/Project Manager
