December 22, 2025
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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.
• Please note: All list purchases are a one-time download and are non-refundable.

If you have questions about our lists, want to nominate a company for inclusion or need to update information, please contact [email protected].

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Public Companies
Ranked by market capitalization
Rank
(Prior)
Company name: Symbol
Headquarters
Office phone
Website
Market Capitalization
5-31-2025
Revenue
2024
Net income (loss) 2024
Industry
Top executive
1
(1)
Amgen: AMGN
Thousand Oaks
(805) 447-1000
amgen.com
$155.0 billion
$33.4 billion
$4.1 billion
Life sciences
Robert Bradway
Chairman, CEO, President
2
(2)
The Trade Desk: TTD
Ventura
(805) 585-3434
thetradedesk.com
$37.0 billion
$2.4 billion
$393.1 million
Advertising technology
Jeff Green
CEO
3
(4)
Teledyne Technologies: TDY
Thousand Oaks
(805) 373-4545
teledyne.com
$23.4 billion
$5.7 billion
$819.2 million
Electronics and testing equipment
George Bobb III
President, CEO