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William Stenger | Colliers | St. Louis - Clayton

William Stenger

Senior Vice President

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Professional Summary

Rocky specializes in office brokerage throughout the St. Louis market. With 14 years in the industry, he works with a variety of clients handling both landlord and tenant representation and corporate solutions requirements. His projects range from corporate headquarters advisory to office campus leasing.

Rocky joined Colliers in October 2009, previously employed with Solon Gershman in Clayton. In 2007, he earned the “Rookie of the Year” title while working there as a Sales and Leasing Broker. Prior to that, he was a Market Analyst with Meritage Homes in Southwest Florida where he was involved in the land acquisition for planned unit developments.

Rocky has participated with numerous charities helping raise funds for Scramble for Kids, Easter Seals Midwest, Big Brothers Big Sisters and Children’s Miracle Network


More than $375 million in leasing transaction volume in St. Louis

Investment sale/acquisition experience more than $75 million in transaction volume

Named to Colliers St. Louis’ President Club in 2018 & 2013 for being one of the top three producers St. Louis Commercial Realtors Heavy Hitters Finalist (2013-2017)

CoStar Power Broker Award (2012) St. Louis Association of Realtors Commercial Division - President (2015)


Missouri State University, Bachelor of Science, Finance and Real Estate

Memberships & Involvements

St. Louis Commercial Realtors

Missouri Growth Association Board of Directors

Missouri State Alumni Association

Urban Land Institute (ULI), Young Leaders


"I have used Rocky on a variety of projects over the years and have recommended him to numerous clients. Rocky has consistently gone above and beyond typical service levels in his efforts to successfully navigate a whole host of complicated issues in multiple markets while delivering excellent results. Rocky is the type of individual I plan on having a long-term business relationship with."
Josiah Cox, Chief Executive Officer at Trumpet Land Services L.L.C.

"Rocky works diligently to manage a property sale from the marketing phase through the many steps involved in closing the sale. He works hard to achieve results and is a good advocate for those he represents."
Mary Ann Cribbin Sewing, Financial Advisor at Saxony Securities, Inc.

"Rocky helped us sell a property that was non "prototypical" and find a client who in acquiring the property, sees an excellent opportunity for their organization. Rocky was able to match up the supply with the demand."
Ronald Bruns, Chief Financial Officer at Society of the Sacred Heart

"While helping us to find office space, I found that Rocky listened to understand our needs, communicated and kept us informed, and worked to research and surface options that met our goals. I certainly felt that the search was in good hands."
Michael Anderson, FACHE, Senior Director of Site Operations at Take Care Health Systems


Service Lines

Capital Markets, Tenant Representation, Landlord Representation

Property Type

Office, Retail, Land

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