| # | Company | Employees |
|---|---|---|
| 1 | 19,892 | |
| 2 | 1,537 | |
| 3 |
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 |
| 4 |
Road Runner Sportsroadrunnersports.com
Provides running shoes, apparel, and accessories, offering a personalized fitting experience to help customers find their ideal gear for an active lifestyle. |
779 |
| 5 |
LifeWave Corporatelifewave.com
An innovative health technology company utilizing wearable wellness patches and products to reverse aging, maximize human potential, and promote wellness |
680 |
| 6 |
Pura Vidapuravidabracelets.com
A global brand empowering artisans with sustainable jobs, raising charity awareness through products that give back Founded in Costa Rica |
674 |
| 7 |
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 |
| 8 |
WAXIE Sanitary Supply, Proudly Part of BradyPLUSwaxie.com
Distributes sanitary products, janitor supplies, and equipment from inventory centers, offering consulting, training, and inventory management for maintenance and janitorial requirements. |
645 |
| 9 |
Better Buzz Coffeebetterbuzzcoffee.com
A San Diego-based coffee company offering fresh roasted beans, unique blends, and exceptional guest service for a superior coffee experience |
487 |
| 10 |
Tony Robbinstonyrobbins.com
A leading entrepreneur, bestselling author, and strategist empowering millions worldwide through books, seminars, and personal development events, with a focus on financial freedom and precision medicine |
388 |
| 11 |
ecoATM Gazelleecoatm.com
A San Diego-based company pioneering device re-Commerce through eco-friendly kiosks, providing instant payment and responsible recycling for electronic devices |
380 |
| 12 |
San Diego FCsandiegofc.com
A new MLS club in San Diego (2025) affiliated with the Right to Dream community Creating a soccer legacy in California |
376 |
| 13 |
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 |
| 14 |
Goodwill Industries of San Diego Countysdgoodwill.org
The company provides employment and training opportunities to individuals with disabilities and other barriers to employment |
318 |
| 15 |
Damascusdamascusapparel.com
A clothing brand founded to support and empower creators who strive to shape a more beautiful and meaningful world together |
306 |
| 16 |
LBF Travel, Inc.lbftravel.com
Global travel agency with over 500 professionals, operating online brands and catering to leisure and business travelers worldwide, focusing on incremental travelers and higher yields |
293 |
| 17 |
Mercatomercato.com
Mercato enables online ordering and delivery of fresh local groceries from specialty food shops, offering individual items, curated lists, and recipe ingredients |
219 |
| 18 |
Rock West Compositesrockwestcomposites.com
Designs, engineers, and manufactures quality composite products using various techniques, ensuring superior value and customer satisfaction with experienced personnel. |
209 |
| 19 |
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 |
| 20 |
InvivoGeninvivogen.com
Specialists in cell culture engineering and innate immunity, providing innovative reagents and tools for cutting-edge research globally |
130 |
| 21 |
Chosen Foodschosenfoods.com
Dedicated to promoting health and sustainability by offering products made with 100% pure avocado oil to replace unhealthy fats |
114 |
| 22 |
NanogenNanogen.com
Develops diagnostic products for improved patient care, focusing on cardiovascular disease and infectious diseases with molecular diagnostic kits and rapid test kits for point-of-care use |
74 |
| 23 |
OZ Biosciencesozbiosciences.com
Product development company specializing in advanced delivery systems for bioactive materials such as DNA, siRNA, proteins, and antibodies to accelerate scientific discoveries |
22 |
| 24 |
Biotonebiotone.com
Manufacturer of professional massage oils, cremes, lotions, gels, and spa body products for high quality therapeutic use. |
13 |
| 25 |
Achilles Coffee Roastersachillescoffeeroasters.com
Local micro coffee roaster with two San Diego locations, offering a variety of roasts and origins for pour over, along with breakfast sandwiches and vegan/gluten-free options |
9 |
| 26 |
ZUMBAR COFFEE & TEA, LLCzumbarcoffee.com
A boutique coffee roaster in San Diego with retail cafes in Sorrento Valley and Cardiff, offering some of the finest coffees globally |
5 |
| 27 |
Manzanita Roasting Company, in Sunny San Diego, CAmanzanitaroasting.com
Specializing in fresh artisan roasted coffee in San Diego, offering wholesale and retail coffee beans sourced, roasted, and tested at Bernardo Winery |
4 |
Turn this list into pipeline
Tamtam finds the decision-makers at every company on a list like this one, with verified emails, phone numbers and the buying signals that tell you when to reach out.
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.
More company lists in San Diego
- The largest companies in San Diego 826
- Manufacturers in San Diego 64
- Hardware manufacturers in San Diego 63
- SaaS companies in San Diego 59
- Retail chains in San Diego 58
- Software Development companies in San Diego 54
- IT Services and IT Consulting companies in San Diego 53
- Financial services firms in San Diego 51
- Financial Services companies in San Diego 46
- Education providers in San Diego 43
- Pharmaceutical companies in San Diego 42
- Biotechnology Research companies in San Diego 41
- AI companies in San Diego 40
- Publicly traded companies in San Diego 39
- IT services companies in San Diego 39
- Healthcare providers in San Diego 34
- Critical infrastructure operators in San Diego 33
- Hotel and hospitality groups in San Diego 33
- Hospitals and Health Care companies in San Diego 29
- Aerospace and defence companies in San Diego 28
- Advertising Services companies in San Diego 28
- Energy companies in San Diego 27
- Real Estate companies in San Diego 27
- Marketing and communications agencies in San Diego 26
The same list elsewhere in United States
- E-commerce companies in the United States 2,483
- E-commerce companies in California 515
- E-commerce companies in New York State 336
- E-commerce companies in Florida 152
- E-commerce companies in Texas 152
- E-commerce companies in Illinois 100
- E-commerce companies in Pennsylvania 75
- E-commerce companies in Ohio 74
- E-commerce companies in Washington State 69
- E-commerce companies in Alabama 62
- E-commerce companies in Massachusetts 62
- E-commerce companies in Utah 58
- E-commerce companies in North Carolina 57
- E-commerce companies in Georgia 56
- E-commerce companies in Michigan 52
- E-commerce companies in New Jersey 52
- E-commerce companies in Minnesota 45
- E-commerce companies in Wisconsin 42
- E-commerce companies in Missouri 41
- E-commerce companies in Oregon 40
- E-commerce companies in Tennessee 40
- E-commerce companies in New York 242
- E-commerce companies in Los Angeles 88
- E-commerce companies in San Francisco 67