The Pacific Coast Business Times’ collection of Top 25 lists represents data on thousands of companies in Ventura, Santa Barbara and San Luis Obispo counties, collected by our reporters and researchers.

We offer a new list each week ranking the top companies, employers and people operating in one of the many industries that compete in the Tri-Counties. Our editors research and validate all of the information, so that you can be sure you’re getting the most accurate data available.

• All lists come in an Excel compatible format, and you can preview the top listings in HTML format.
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Prefer Excel? A complete spreadsheet of this list is available. Download Excel file Office Parks Ranked by square footage Rank (Prior) Office Park Street address City, ZIP Office phone Alternate office phone1 Sq. feet Selected tenants Description of park Leasing company 1 (1) Cabrillo Business Park 6701-6775 Hollister Ave. Goleta, 93117 (805) 898-4370 (805) 898-4365 767,000 Deckers, Raytheon Fully entitled commercial project with all infrastructure constructed RAF Pacifica 2 (2) Topa Financial Plaza 300-500 Esplanade Drive Oxnard, 93036 (805) 278-1400 580,000 NAI Capital; City National Bank; Morgan Stanley; Lowthorp, Richards, McMillan, Miller & Templeman A 26-acre campus, 12 buildings, approximately 2,200 parking stalls NAI Capital Commercial Real Estate 3 (3) Camarillo Business Center I-VII Daily Drive and Paseo Camarillo Camarillo, 93010 (805) 278-1400 400,000 Gold Coast Health Plan, U.S. Dept. of Interior, U.S. Internal Revenue Service 25-acre campus, seven buildings NAI Capital Commercial Real Estate, CBRE 4 (4) Westlake North Business Park I-III 30700 Russell Ranch Road Westlake Village, 91361 (818) 531-9678 818-531-9682 333,628 iPayment, Kanan Therapuetics Multibuilding, three class-A office buildings, 27-acre office park with easy access to Highway 101 Jones Lang LaSalle 5 (5) The Patriot Commerce Center 858-893 Patriot Drive Moorpark, 93021 (818) 223-4380 (818) 449-4401 306,000 Covered 6, Topaz Systems, Deeds Engineering Office, medical and industrial condominiums Lee & Associates     Sources: Email surveys, phone interviews and Internet research. Notes:1 Phone numbers correspond with leasing companies, respectively. An office park is defined as leased office space,     excluding medical and government or tenant-owned. n/a = not available. nr = not ranked. This list was updated in Dec. 2023.