Executives Legend
The color legend to the right illustrates the various backgrounds for the top executives in the residential real estate industry.

Chris Trapani

Co-Founder and CEO, 
Christie’s International Real Estate Sereno (an At World Properties company)
2025 Rank: 184
Trapani began his real estate career in 1990 and rose through the ranks at Century 21 and Coldwell Banker in California before launching the luxury, boutique real estate firm Sereno in 2006. The firm partnered with Christie’s International Realty in 2022. Today, Christie’s Sereno is one of the San Francisco Bay Area’s largest locally operated and owned real estate firm with a reported 575 agents. The firm in 2024 extended its reach in California’s Wine Country with an expansion into the St. Helena market.

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