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Publicly traded companies headquartered in San Diego

Tamtam tracks 39 publicly traded companies headquartered in San Diego. This list ranks all of them by number of employees on LinkedIn, led by Qualcomm, Petco and LPL Financial. Their median headcount is 704. Half of them were founded in 1996 or later.

馃嚭馃嚫 San Diego39 companiesUpdated Nov 2, 2026
#CompanyIndustryHeadquarters EmployeesFounded
1
Qualcommqualcomm.com

Providing widespread intelligent computing solutions

Semiconductor Manufacturing 馃嚭馃嚫 San Diego 57,548 n/a
2
Petcopetco.com

Providing pet products, services, and support to help pets live healthy, happy lives for over 60 years.

Retail 馃嚭馃嚫 San Diego 19,892 1965
3
LPL Financiallpl.com

Wealth management firm supporting financial advisors and institutions through investment solutions, fintech tools, practice management services, and custody of trillions in brokerage assets.

Financial Services 馃嚭馃嚫 San Diego 14,788 1989
4
Teradatateradata.com

The company specializes in providing a cloud analytics and data platform that empowers organizations with harmonized data and trusted AI/ML for confident decision-making and impactful results

Software Development 馃嚭馃嚫 San Diego 9,882 1979
5
Illuminaillumina.com

The company develops innovative technologies and assays for genetic analysis, enabling personalized medicine and advancing disease research, drug development, and molecular testing

Biotechnology Research 馃嚭馃嚫 San Diego 9,673 1998
6
Resmedresmed.com.br

The company pioneers innovative medical devices and software platforms to treat chronic diseases, improve quality of life, and reduce healthcare costs globally

Medical Equipment Manufacturing 馃嚭馃嚫 San Diego 9,180 1989
7
Dexcomdexcom.com

A leader in continuous glucose monitoring technology, empowering individuals with diabetes to control their health and pursue their dreams

Medical Equipment Manufacturing 馃嚭馃嚫 San Diego 8,997 1999
8
PriceSmartpricesmart.com

A membership-based retail company offering high-quality items at low prices across Central America, Colombia and the Caribbean, while supporting local communities through philanthropic initiatives

Retail 馃嚭馃嚫 San Diego 6,108 1995
9
Encore Capital Groupencorecapital.com

Publicly traded company promoting employee wellness, professional growth, and consumer rights, recognized for leadership and healthy workplace initiatives.

Financial Services 馃嚭馃嚫 San Diego 3,243 n/a
10
Kratos Defense and Security Solutionskratosdefense.com

National security technologies spanning unmanned systems, hypersonics, satellite communications, cyber defense, and propulsion systems for rapid deployment to support various military domain missions.

Defense and Space Manufacturing 馃嚭馃嚫 San Diego 2,950 n/a
11
Semprasempra.com

A leading energy infrastructure company helping to electrify and decarbonize major markets in North America through sustainable practices and operational excellence

Utilities 馃嚭馃嚫 San Diego 2,572 n/a
12
Neurocrine Biosciencesneurocrine.com

A neuroscience-focused biopharmaceutical company dedicated to discovering treatments for neurological, neuroendocrine, and neuropsychiatric disorders, providing hope for patients with limited options

Biotechnology Research 馃嚭馃嚫 San Diego 2,378 1992
13
Cohu, Inc.cohu.com

A global supplier of semiconductor test equipment, handlers, MEMS modules, thermal systems, and automated test equipment, focusing on yield improvement and cost reduction for manufacturers

Appliances, Electrical, and Electronics Manufacturing 馃嚭馃嚫 San Diego 2,084 1947
14
Axos Bankaxosbank.com

This company empowers consumers and businesses in managing their financial lives through banking, borrowing, investing, and planning with an exceptional team

Banking 馃嚭馃嚫 San Diego 1,430 2000
15
NuVasiveglobusmedical.com

A company focused on providing innovative musculoskeletal procedural solutions and enabling technologies to improve patient care worldwide Visit their website for more information

Medical Equipment Manufacturing 馃嚭馃嚫 San Diego 1,409 1997
16
Acadia Pharmaceuticalsacadia.com

Develop and commercialize FDA-approved treatments for neurological disorders, focusing on underserved diseases like Parkinson's psychosis and Rett syndrome.

Pharmaceutical Manufacturing 馃嚭馃嚫 San Diego 1,010 1993
17
WD-40 Companywd40company.com

Global company marketing and distributing high-quality maintenance and homecare products across diverse trade channels in over 176 countries worldwide.

Wholesale Chemical and Allied Products 馃嚭馃嚫 San Diego 955 1953
18
Becton Dickinson Company (Safety Syringes, Inc. )bd.com

A global medical technology company advancing health through improved medical discovery, diagnostics, and care delivery

Medical Equipment Manufacturing 馃嚭馃嚫 San Diego 854 n/a
19
Mitek Systemsmiteksystems.com

A global leader in digital access, using advanced identity verification technologies to make digital access faster, more secure, and compliant

Computer and Network Security 馃嚭馃嚫 San Diego 763 1985
20
Realty Income Corporationrealtyincome.com

A real estate investment trust focusing on long-term net lease agreements with commercial clients, providing dependable monthly dividends and supporting racial justice

Real Estate 馃嚭馃嚫 San Diego 704 1969
21
ImmunityBio, Inc.immunitybio.com

Developing innovative cell and immunotherapy products to strengthen the immune system, target cancer and infectious diseases, and create immunological memory for long-term defense

Biotechnology Research 馃嚭馃嚫 San Diego 653 2014
22
Halozyme, Inc.halozyme.com

Develop enzyme technology enhancing drug delivery, reducing treatment times, partnering with pharma companies to improve patient outcomes globally.

Biotechnology Research 馃嚭馃嚫 San Diego 536 n/a
23
Travere Therapeuticstravere.com

Specializing in rare disease therapies, we aim to identify, develop, and provide life-changing treatments for those affected #InRareForLife

Biotechnology Research 馃嚭馃嚫 San Diego 507 2020
24
Quidelquidelortho.com

QuidelOrtho develops intelligent diagnostic solutions to transform data into actionable insights, enabling faster responses and a healthier future globally

Medical Equipment Manufacturing 馃嚭馃嚫 San Diego 496 n/a
25
Inseego Corpinseego.com

Industry pioneer in smart device-to-cloud solutions, extending 5G network edge for broader coverage, high-speed data, low latency, and secure internet access worldwide

Telecommunications 馃嚭馃嚫 San Diego 413 1996
26
Pitney Bowes Inc.pitneybowes.com

A computer software based in California, specializing in presort services and located in San Diego

Software Development 馃嚭馃嚫 San Diego 321 n/a
27
Cibuscibus.com

A technology company using gene editing to develop high-value plant traits for major crops, improving yields and sustainability in agriculture

Biotechnology Research 馃嚭馃嚫 San Diego 317 2001
28
Kura Oncology, Inc.kuraoncology.com

A clinical-stage biopharmaceutical company developing small-molecule drug candidates targeting signaling pathways to improve outcomes for cancer patients

Biotechnology Research 馃嚭馃嚫 San Diego 315 2014
29
Vicalvical.com

Biopharmaceutical company based in San Diego developing innovative therapies for infectious diseases using patented DNA delivery technologies Partnering with industry leaders Website: wwwvicalcom

Biotechnology Research 馃嚭馃嚫 San Diego 308 1987
30
Fate Therapeutics Inc.fatetherapeutics.com

Developing off-the-shelf, iPSC-derived cell products for cancer and autoimmune diseases, including T-cell and natural killer cell immunotherapies with synthetic controls.

Biotechnology Research 馃嚭馃嚫 San Diego 225 2007
31
ARS Pharmaceuticals, Inc.ars-pharma.com

Developing intranasal epinephrine spray with innovative absorption technology for easy, reliable use in severe allergic reactions to food, medications, and insect bites

Pharmaceutical Manufacturing 馃嚭馃嚫 San Diego 199 n/a
32
Broadridge Advisor Solutionsadvisor.broadridge.com

Provider of marketing and reporting tools for financial professionals to enhance client communication, attract prospects, and increase sales Trusted industry brands under one umbrella

Financial Services 馃嚭馃嚫 San Diego 134 1985
33
Beam Globalbeamforall.com

Clean technology innovator specializing in sustainable infrastructure products, EV charging solutions, energy storage, and energy security to power transportation and protect the environment

Renewable Energy Equipment Manufacturing 馃嚭馃嚫 San Diego 97 2006
34
Slacker Radio, Inc.slacker.com

A music streaming service offering free and subscription-based access to millions of songs, expert-programmed stations, news, sports, and talk on various platforms

Technology, Information and Internet 馃嚭馃嚫 San Diego 53 2006
35
ID Analyticsrisk.lexisnexis.com

Consumer risk management leader providing innovative analytics, insights into consumer behavior, and advanced solutions for identity risk and creditworthiness to prevent fraud and enhance decisions

IT Services and IT Consulting 馃嚭馃嚫 San Diego 42 n/a
36
Nuvve Holding Corp.nuvve.com

Leading planet electrification through intelligent energy platform, combining vehicle-to-grid technology and electrification partners to manage power among EV batteries and grid.

Renewables & Environment 馃嚭馃嚫 San Diego 39 2010
37
RYVYLryvyl.com

A San Diego-based technology company develops customized, secure Blockchain payment solutions with integrated financial products for various industries

Software Development 馃嚭馃嚫 San Diego 27 2017
38
Jurman Medical Associationjurmanmedical,com

This company focuses on advancing healthcare solutions and technologies to improve patient outcomes and revolutionize the future of healthcare

Hospitals and Health Care 馃嚭馃嚫 San Diego 4 1980
39
Globe Computers USglobecomputers.tk

A software development company focused on creating solutions to life's challenges, prioritizing customer satisfaction above all else

Software Development 馃嚭馃嚫 San Diego 2 2015

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How this list is built

Every company on this list has a Tamtam company profile. The industry is the one the company gives on LinkedIn; categories such as SaaS or fintech are classified by Tamtam's AI from the company's website and LinkedIn page; and the headquarters city must match the company's own address. Companies are ranked by the number of employees on LinkedIn, and the list is refreshed every night. Classifications can be wrong, so treat the list as a starting point rather than an official ranking. Last updated Nov 2, 2026.

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