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William Classen | Colliers | Washington, DC

William Classen

Associate Vice President

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Professional Summary

Will Classen is an Assistant Vice President at Colliers International specializing in tenant representation, lease negotiations, strategic planning, financial analysis, and real estate advisory services for clients across the Washington metropolitan area and nationally. His understanding of the office market, transaction process, and lease language make him invaluable to his clients in finding the perfect space, creating leverage, structuring advantageous business terms, and flexible leases.

Throughout his career, Mr. Classen has worked closely with executives across the c-suite, partnering with them on strategic initiatives concerning enterprise risk management, process efficiency, functional transformations, strategy execution, and change management. He has a reputation for superior client service and a proven track record of success, realizing his client’s financial objectives.

Prior to joining Colliers, Mr. Classen was an Associate at Newmark Knight Frank, where he was responsible for representing many prominent Washington, DC metro tenants. Will began his career in Washington, DC at The Corporate Executive Board (now Gartner), a leading best practice advisory and technology company, where he focused on account management and new business development within the corporate finance and strategy practice.


Will graduated from Clemson University with a Bachelor of Science degree in economics and financial management.

Memberships & Involvements

Will actively volunteers at the 801 East Men’s Homeless Shelter. He is a member of the Washington International Trade Association advisory board, the Commercial Real Estate Brokers Association of Washington, DC, the Clemson Alumni Association, the Board of Trustees of the Massachusetts Society of Washington, DC, and The Global Good Fund’s Young Executive Council. 



Corporate Transaction and Portfolio Management, Lease Advisory

Service Lines

Tenant Representation

Property Type

Healthcare, Industrial, Office

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