John Bosko
Executive Vice President, NAI Capital
Irvine, CA 92614
Commercial Real Estate Leader
Phone (714) 609-0659
Commercial Real Estate Leader
Specialties
Investment Sales Broker, Landlord Rep (Land), Landlord Rep (Office), Tenant Rep
Property Types
Industrial, Land, Office, Retail, Flex, Health Care
Markets
Inland Empire (California), Orange County (California)
Languages
English
Bio
With 35+ years in commercial real estate, John Bosko is a top-performing broker specializing in investment sales, leasing, and development across Southern California. Since 2020, he has closed 70+ transactions totaling $150M+, including a landmark $20.25M industrial sale, multiple medical office leases, and strategic land deals exceeding $8M in key markets like Corona, Tustin, Rancho Cucamonga, and Long Beach.
His institutional expertise is demonstrated through 20+ successful renewals for a Fortune 500 manufacturing client. John has expanded his practice to emerging markets including Murrieta and Ontario while adopting cutting-edge technology to enhance traditional brokerage methods with his partner Zeshaan Abid. His current pipeline includes medical developments, land projects, value-add opportunities in office and retail, showcasing his ability to identify opportunities in any market cycle.
Education
Awards