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Not sure what you need? Start here to find the right solution.
Find the right property to lease, buy, or invest in — faster.
Healthcare Services Report | Q3 2025
Explore expert insights, data-backed strategy, and the latest headlines from Colliers.
An Inside Look at the Top 25 U.S. Industrial & Logistics Markets
Launches refreshed sustainability strategy Built to Last
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Gregg Riva is a senior vice president in Colliers International’s Bellevue, WA office. He joined the firm in 1991. Mr. Riva focuses on the Eastside/Northend commercial real estate market and specializes in providing real estate services for both tenants and landlords in the King and South Snohomish County markets.
Mr. Riva offers clients a multitude of skills, including a wealth of experience in office and industrial transactions from both the owner and tenant’s perspective. This combination of tenant and landlord representation experience allows him to expertly negotiate in all types of real estate transactions. His success on behalf of clients has earned him top producer honors from Colliers in the Puget Sound Region for more than two decades.
Gregg Riva is a senior vice president in Colliers International’s Bellevue, WA office. He joined the firm in 1991. Mr. Riva focuses on the Eastside/Northend commercial real estate market and specializes in providing real estate services for both tenants and landlords in the King and South Snohomish County markets.
Mr. Riva offers clients a multitude of skills, including a wealth of experience in office and industrial transactions from both the owner and tenant’s perspective. This combination of tenant and landlord representation experience allows him to expertly negotiate in all types of real estate transactions. His success on behalf of clients has earned him top producer honors from Colliers in the Puget Sound Region for more than two decades.
In the Pacific Northwest, Mr. Riva has provided landlord and tenant advisory services to a wide variety of local and national companies and corporations. He has been involved in over 600 real estate transactions over the past 16 years, including leases totaling more than 5.1 million square feet of space and sales valued in excess of $260 million.
His notable tenant relationships include:
Owners he has represented include:
Industrial, Office
Landlord Representation, Tenant Representation, Capital Markets
Mr. Riva earned a Bachelor of Arts in Communications from the University of Washington.
Mr. Riva served on the Board of Directors for the Bellevue Boys and Girls Club for six years and coached football in the Junior Wolverine program for seven years.
Our Landlord Representation experts will provide you with a range of services, including assessing similar properties in your marketplace, targeting and attracting potential tenants, finding and signing leases with the right clients and minimizing your risk with thoughtful leases.
Our Tenant Representation services experts will provide you with a range of services, including lease negotiation and renewal, in-depth location analysis and workplace design.
Your Colliers expert will provide you with a full complement of services and specialties, including investment sales, debt and equity placement, market research, valuation and appraisal and transaction management services.
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