| # | Company | Employees |
|---|---|---|
| 1 | 57,548 | |
| 2 |
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 |
9,882 |
| 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 |
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 |
9,180 |
| 5 |
Call Center Services Internationalccsi.com
Specializing in establishing bilingual contact centers in Mexico with a focus on high-quality workforce, advanced infrastructure, and proximity to the US |
7,648 |
| 6 |
Power Digital Marketingpowerdigitalmarketing.com
Growth marketing firm utilizing proprietary technology to analyze digital ecosystems and develop custom data-driven playbooks for revenue growth and brand recognition worldwide. |
2,318 |
| 7 | 1,569 | |
| 8 |
ClickUpclickup.com
It offers a comprehensive productivity platform combining project management, document collaboration, and AI, enhancing efficiency for millions of users globally. |
1,502 |
| 9 |
Kyribakyriba.com
A company empowering CFOs to optimize liquidity, manage financial risk, and reduce costs through a SaaS platform with AI and automation |
1,397 |
| 10 |
Seismicseismic.com
Global enablement platform providing customer-facing teams with skills, content, tools, and insights to drive engagement and revenue growth. |
1,329 |
| 11 |
Netradynenetradyne.com
Utilizing computer vision and edge computing for fleet safety solutions, analyzing data points to improve driver behavior, increase profitability, and enhance transparency. |
1,167 |
| 12 |
Lytx, Inc.lytx.com
Global leader providing video-based fleet management solutions, leveraging video to enhance driver and fleet safety, efficiency, and profitability. Offers services from safety to fuel management, utilizing AI. |
1,006 |
| 13 |
Industryindustryrecruiterai.com
Revolutionizing recruitment for hospitality, retail, and grocery industries with expert hourly and skilled labor matchmaking, achieving placements in under 24 hours |
985 |
| 14 |
Mitek Systemsmiteksystems.com
A global leader in digital access, using advanced identity verification technologies to make digital access faster, more secure, and compliant |
763 |
| 15 |
Cloudbedscloudbeds.com
Unified management platform providing operations, distribution, guest experience, and revenue marketing tools to help independent hotels and large groups maximize direct bookings. |
755 |
| 16 | 625 | |
| 17 |
Tealiumtealium.com
A trusted Customer Data Platform that connects and integrates customer data from various sources for businesses to better engage with customers |
562 |
| 18 |
Robbins Research Internationaltonyrobbins.com
Specializes in conducting personal development, sales, and corporate seminars covering mental conditioning, personal achievement, communication, and business mastery topics |
508 |
| 19 |
SmartDrivefleet.solera.com
Provider of transportation SaaS solutions, specializing in safety, compliance, routing, dispatch, and more Follow for industry updates and insights |
430 |
| 20 |
Ignite Visibilityignitevisibility.com
Premier online marketing agency focused on providing high-touch customer service, custom solutions, and a range of digital marketing services for clients |
371 |
| 21 |
Pixelz Incpixelz.com
A global post-production partner using AI and automation to deliver high-quality, consistent images quickly for brands and retailers |
357 |
| 22 |
Applied Data Financeapplieddatafinance.com
Financial partner for under-banked Americans using advanced technology and data science to assess borrower credit and fraud risk Stay updated for job openings |
341 |
| 23 |
English4Kidsenglish4kidsonline.com
Online English academy using Automatic Fluency method to teach kids in Latin America fluent English quickly Thousands of students and hundreds of teachers |
329 |
| 24 |
VetsEZvetsez.com
A digital services firm specializing in delivering modern, user-centric solutions to aid the federal government in serving the public better |
326 |
| 25 | 326 | |
| 26 |
Flarehelloflare.com
This company offers a software platform that simplifies the delivery of professional services, empowers lawyers, and enhances access to legal services |
276 |
| 27 |
Integrant, Inc.integrant.com
Custom software development company providing tailored solutions, focusing on seamless integration, with a commitment to doing the right thing for customers and employees |
257 |
| 28 |
Cordialcordial.com
Automating personalized, data-driven messages across various channels to establish lasting connections with customers |
249 |
| 29 | 236 | |
| 30 |
Miva, Inc.miva.com
Innovative ecommerce platform empowering American businesses through increased revenue, sales, and lower costs Award-winning workplace fostering creativity and collaboration |
236 |
| 31 |
ESET North Americaeset.com
With over 30 years of experience, we provide award-winning security solutions to protect over a billion users worldwide from digital threats |
203 |
| 32 |
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 |
| 33 |
Workizworkiz.com
A field service platform developed by former locksmiths to streamline operations and increase revenue for service professionals, trusted by over 110,000 users |
157 |
| 34 |
Trackertracker-rms.com
Leading provider of people-centric recruitment software with sophisticated ATS & CRM platform Dedicated to streamlining workflows, recruiting top talent, and building extraordinary relationships |
109 |
| 35 |
Deckard Technologiesdeckard.com
Provides cities and counties with AI-driven analytics to recover property and occupancy taxes, ensuring tax fairness and supporting essential community services |
105 |
| 36 |
Edge Impulseedgeimpulse.com
Edge Impulse leverages machine learning to empower developers and enterprises in building and deploying AI products for edge devices efficiently and effectively |
95 |
| 37 |
Good Face Projectthegoodfaceproject.com
Formulation platform with AI-enabled INCI database for cosmetic companies to create compliant and competitive products ahead of new regulations |
47 |
| 38 |
eMixmerative.com
eMix provides cloud-based technology for easy sharing of medical imaging studies and reports among healthcare facilities with the simplicity of email |
22 |
| 39 |
Analytics Venturesanalyticsventures.com
A venture studio fund in San Diego focused on launching innovative ventures in Artificial Intelligence, partnering with entrepreneurs and researchers |
12 |
| 40 |
LabX Ventures庐labxventures.com
An early stage angel and venture capital fund that selects and builds successful companies through a lab based process and methodology |
9 |
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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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- E-commerce companies in San Diego 27
- Energy companies in San Diego 27
- Real Estate companies in San Diego 27
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