| # | Company | Employees |
|---|---|---|
| 1 | 57,548 | |
| 2 |
General Atomicsga.com
Development of advanced technology solutions including unmanned aerial vehicles, research reactors, aircraft systems, MagLev transport, and fusion energy for global customers. |
11,213 |
| 3 |
Illuminaillumina.com
The company develops innovative technologies and assays for genetic analysis, enabling personalized medicine and advancing disease research, drug development, and molecular testing |
9,673 |
| 4 |
Dexcomdexcom.com
A leader in continuous glucose monitoring technology, empowering individuals with diabetes to control their health and pursue their dreams |
8,997 |
| 5 |
Solar Turbinessolarturbines.com
Manufacturer of industrial gas turbines, compressors, and generator sets used in oil, gas, and power generation projects globally. |
7,656 |
| 6 |
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. |
2,950 |
| 7 |
CareFusionbd.com
Develops market-leading technologies and services for the health care industry; products improve cost and safety of patient care. |
2,600 |
| 8 |
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 |
2,084 |
| 9 |
General Dynamics NASSCOjobs.nassco.com
A shipbuilding company with locations on the West and East Coasts specializing in ships for the US Navy and commercial markets, also providing repair services |
1,845 |
| 10 |
Kyocera International, Inc. (North America)americas.kyocera.com
A leading provider of high-tech products for consumers and businesses including fine ceramics, semiconductor components, communication equipment, consumer products, and more |
1,553 |
| 11 | 1,537 | |
| 12 |
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 |
1,409 |
| 13 |
100%100percent.com
A San Diego-based brand producing premium goggles, eyewear, helmets, gloves, and sportswear for motocross, downhill slopes, and BMX racing to inspire a new generation of racers |
1,318 |
| 14 |
Hyundai Transleadhyundaitranslead.com
A leading manufacturer of dry and refrigerated van trailers, domestic containers, container chassis, and converter dollies for the North American transportation industry |
950 |
| 15 |
Kyocera Mobilekyoceramobile.com
A leader in rugged mobility solutions, specializing in waterproof and durable mobile devices with enterprise-grade security and white glove services for business customers |
924 |
| 16 |
Becton Dickinson Company (Safety Syringes, Inc. )bd.com
A global medical technology company advancing health through improved medical discovery, diagnostics, and care delivery |
854 |
| 17 | 826 | |
| 18 |
Pulse Electronics Corporationyageogroup.com
Designing and manufacturing passive electronic components like magnetics, antennas, and connectors for communications, computing, industrial, IoT, and transportation sectors. |
691 |
| 19 |
BioLegendbiolegend.com
Developing cutting-edge antibodies, proteins, and bioassays for biomedical research, offering superior products, customer service, and support Revolutionizing healthcare solutions and technologies globally |
660 |
| 20 |
iTECHitecheng.com
Designs, engineers, and manufactures batteries, chargers, and docking stations for medical, handheld electronics, security, and mobile communication markets, focusing on intrinsically safe and smart power. |
580 |
| 21 |
Ascential Medical & Life Sciences (now includes D&K Engineering)ascentialtech.com
A comprehensive medical and life sciences company accelerating innovation from ideation to manufacturing, with a focus on complex and essential projects |
528 |
| 22 |
Quidelquidelortho.com
QuidelOrtho develops intelligent diagnostic solutions to transform data into actionable insights, enabling faster responses and a healthier future globally |
496 |
| 23 |
Mitsubishi Elevatorsmitsubishielevator.com
Specializing in elevator construction, the organization is located in San Diego, California, United States |
475 |
| 24 |
Element Bioscienceselementbiosciences.com
A life science company developing disruptive DNA sequencing and multiomics technology to empower researchers with affordable, high-quality data |
445 |
| 25 |
Argen Corporationargen.com
Global leader supporting dental laboratories in 105+ countries, committed to laboratory success as a partner rather than a competitor. |
411 |
| 26 |
Ceramic Proceramicpro.com
Global leader in nano ceramic protection solutions for vehicles, offering advanced coatings, paint protection films, and window films with a focus on innovation and excellence Trusted by professionals worldwide |
395 |
| 27 |
Bumble Bee Foodsthebumblebeecompany.com
A 120-year-old fishing company delivering delicious, healthy seafood globally while working towards ocean conservation and sustainability |
378 |
| 28 |
PDPturtlebeach.com
Supplying video game peripherals and accessories globally for over 25 years, promoting community, individuality, and expression for gamers worldwide |
355 |
| 29 |
Volcano Corporationvolcanocorp.com
Global leader in intravascular imaging and therapy for coronary and peripheral applications, offering innovative technologies to improve patient outcomes worldwide |
334 |
| 30 |
Mechanical Engineering Professionals, LLCmechanicalengineeringpros.com
A full-service mechanical engineering design and manufacturing firm specializing in machine design, optics, robotics, medical devices, automation, and nanotechnology |
328 |
| 31 |
Goldstarsimplygoldstar.com
Award-winning manufacturer and supplier of personalized writing instruments, stationery, and drinkware, offering full-color decoration and all-inclusive pricing to promotional product distributors worldwide |
325 |
| 32 |
Quantum Designqdusa.com
The company develops and markets automated temperature and magnetic field testing platforms for materials characterization across various scientific fields globally |
313 |
| 33 |
Rhino Linings Corporationrhinolinings.com
A world leader in sprayed and rolled coatings and linings for industrial, municipal, and residential applications with a global network of applicators |
311 |
| 34 |
KICkicthermal.com
The company provides automatic profiling, fixtures, and software solutions for various manufacturing processes, offering Smart Factory solutions for automation and process control |
311 |
| 35 |
TriLink BioTechnologies, part of Maravai LifeSciencestrilinkbiotech.com
Global leader, nucleic acid and mRNA solutions, delivering chemical and biological expertise, CDMO services, high-quality materials including patented CleanCap mRNA capping technology for pharmaceutical and biotech. |
250 |
| 36 |
Inova Diagnostics, A Werfen Companyinovadx.com
A leader in autoimmune technologies, Inova Diagnostics develops and manufactures IVD systems and reagents for diagnosis and monitoring of complex disorders worldwide |
249 |
| 37 |
Calibre Scientific Groupcalibrescientific.com
Global provider of life science products & services for lab research, diagnostics, & biopharmaceuticals through acquisitions & organic growth, serving customers in 175+ countries |
248 |
| 38 |
Invetechinvetechgroup.com
Global engineering and manufacturing partner for cell and gene therapy, diagnostics, IVD, and medtech companies. Designs, develops, automates, and manufactures products. |
246 |
| 39 |
Taoglastaoglas.com
Provider of antennas, IoT components, and design services, ensuring seamless connectivity solutions with global engineering resources and a customer-focused approach for innovative RF systems |
222 |
| 40 |
Rock West Compositesrockwestcomposites.com
Designs, engineers, and manufactures quality composite products using various techniques, ensuring superior value and customer satisfaction with experienced personnel. |
209 |
| 41 |
Ballast Point Brewing Companyballastpoint.com
This San Diego-based company is a leader in craft brewing and spirits, known for innovative twists on traditional recipes |
206 |
| 42 |
CPG Sorting Technologiescpgrp.com
Leading manufacturer of advanced sorting systems for waste and recycling, including CP Auger Screens and NIR/AI MSS optical sorters, enhancing efficiency and safety. |
203 |
| 43 |
Biotixbiotix.com
A global leader in manufacturing laboratory consumables and liquid handling solutions, dedicated to providing innovative products for researchers worldwide |
202 |
| 44 |
Whalen Furniturewhalenfurniture.com
A furniture company designing pieces for home, work, and life, focusing on affordability, diverse styles, and customer needs since 1991 |
186 |
| 45 |
Steren Solutionssterensolutions.com
This company provides innovative electronics connectivity solutions, manufacturing over 3,000 products for broadband, telco, and consumer electronics distributors, ensuring quality and customer satisfaction. |
162 |
| 46 |
Solar Gard Saint-Gobainsolargard.com
A global producer of advanced window films and protective coatings for architecture and automotive markets, enhancing lives with products that protect, save, and renew |
142 |
| 47 |
InvivoGeninvivogen.com
Specialists in cell culture engineering and innate immunity, providing innovative reagents and tools for cutting-edge research globally |
130 |
| 48 |
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 |
97 |
| 49 |
Kurin Inc.kurin.com
Privately owned business dedicated to engineering better healthcare through innovative technologies, focusing on reducing false positive blood cultures in hospitals |
89 |
| 50 |
Maravai LifeSciencesmaravai.com
Develops and provides nucleic acid products, enzyme development, and biologics safety testing for life sciences companies, supporting research, clinical trials, and commercialization. |
87 |
| 51 |
Diamond Electronicsdiamond-ems.com
Global leader in contract manufacturing specializing in Electronic Manufacturing Solutions for a variety of industries, with a focus on innovation and quality |
85 |
| 52 |
Space Micro โ Powered by Voyager Spacespacemicro.com
An engineering-driven supplier of radiation-hardened communications, electro-optics, and digital systems for commercial, civil, and military space applications worldwide Based in San Diego, CA |
84 |
| 53 |
Althea, CMOaltheacmo.com
Contract development and manufacturing organization for process development, drug substance, and drug product manufacturing, including formulation and aseptic fill finish. |
72 |
| 54 |
Nikkiso America, Inc.nikkisoamerica.com
The company provides innovative technologies and products globally, focusing on aerospace, industrial, medical, and precision equipment divisions to meet customer demands |
65 |
| 55 |
Presidio Components, Inc.presidiocomponents.com
Designs and manufactures ceramic capacitors for demanding applications including space, military, high-temperature, RF, and custom commercial electronics. |
56 |
| 56 |
ECORยฎecorglobal.com
Noble Environmental Technologies develops and manufactures sustainable building materials, offering eco-friendly alternatives to traditional materials while promoting a circular economy |
52 |
| 57 |
Tubby Todd Bath Co.tubbytodd.com
Creating all-natural body care products for kids and mothers since 2014, this company is dedicated to connecting families and promoting clean fun |
38 |
| 58 |
Custom Cabs Inc.customcabsinc.com
A premier designer, manufacturer, and installer of custom elevators with exotic materials for interior and exterior use, offering complete packages tailored to individual needs |
21 |
| 59 |
Wintriss Engineering Corporationweco.com
Innovative technology company specializing in automated surface vision inspection systems for various industries, focused on improving product quality and reducing costs |
14 |
| 60 |
Biotonebiotone.com
Manufacturer of professional massage oils, cremes, lotions, gels, and spa body products for high quality therapeutic use. |
13 |
| 61 |
California Commercial Asphalt, LLCccallc.com
A joint venture providing asphalt production services with a focus on sustainability, led by an experienced team in the construction industry |
12 |
| 62 |
Designer Molecules, Inc.designermoleculesinc.com
This company develops innovative chemistries for advanced materials, creating new products for structural technology and providing solutions for various industries worldwide |
12 |
| 63 |
Grantchester Groupgrantchestergroup.com
Private equity firm investing in healthcare, energy, and industrials with a team of experienced CEO's and Operating Executives from successful companies |
11 |
| 64 |
Luna Nortelunanorte.co
A globally recognized jewelry brand blending nature's charm with elegance, celebrating individuality, empowerment, and self-expression through thoughtfully designed pieces |
10 |
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More company lists in San Diego
- The largest companies in San Diego 826
- Hardware manufacturers in San Diego 63
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- Software Development companies in San Diego 54
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- Financial services firms in San Diego 51
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- Education providers in San Diego 43
- Pharmaceutical companies in San Diego 42
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- E-commerce companies in San Diego 27
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The same list elsewhere in United States
- Manufacturers in the United States 8,649
- Manufacturers in California 1,074
- Manufacturers in Texas 619
- Manufacturers in Illinois 529
- Manufacturers in Ohio 480
- Manufacturers in Michigan 453
- Manufacturers in New York State 398
- Manufacturers in Pennsylvania 364
- Manufacturers in Wisconsin 331
- Manufacturers in Georgia 281
- Manufacturers in Florida 273
- Manufacturers in North Carolina 271
- Manufacturers in Massachusetts 269
- Manufacturers in Minnesota 263
- Manufacturers in New Jersey 252
- Manufacturers in Indiana 242
- Manufacturers in Alabama 197
- Manufacturers in Washington State 176
- Manufacturers in Missouri 164
- Manufacturers in Tennessee 153
- Manufacturers in Colorado 144
- Manufacturers in Connecticut 143
- Manufacturers in Houston 173
- Manufacturers in New York 142