Irvine hosts a diverse array of multinational companies, predominantly mid-sized to large enterprises. These firms span various sectors, including technology, healthcare, and consumer services. Notable examples include Allied Universal, offering tailored security and facility services; Taco Bell, a global Mexican-inspired quick service restaurant brand; Ingram Micro, a global distributor of IT products and services; and Edwards Lifesciences, which develops structural heart technologies.
A significant pattern observed among these companies is their strong presence in professional services and technology. Many are headquartered in Irvine, indicating the city's role as a hub for corporate operations, particularly in sectors that serve a global customer base.
| # | Company | Employees | |||
|---|---|---|---|---|---|
| 1 |
Allied Universalaus.com
Provides tailored security and facility services using smart technology, supporting diverse sectors with local leadership and community presence. |
104,797 | |||
| 2 |
Taco Belltacobell.com
This company operates as a global Mexican-inspired quick service restaurant brand, with thousands of locations serving millions of customers weekly, part of a major restaurant group. |
83,421 | |||
| 3 |
Aloricaalorica.com
Alorica provides world-class customer service and support for various industries, with a focus on creating great experiences for clients and employees globally |
70,920 | |||
| 4 |
Ingram Microingrammicro.com
Global technology company distributing IT products and services, offering AI-powered platform, financing, marketing, lifecycle management, and technical support. |
29,469 | |||
| 5 |
LA Fitnesslafitness.com
A privately owned fitness club chain with state-of-the-art clubs in US and Canada, focusing on enhancing members' wellbeing through innovative workout options |
15,166 | |||
| 6 |
Arbonnearbonne.com
A company that creates premium skincare and wellness products with botanical ingredients, focusing on purity, safety, and effectiveness, distributed through Independent Consultants worldwide |
14,306 | |||
| 7 |
Edwards Lifesciencesedwards.com
Develops breakthrough structural heart technologies and medical devices for patients, partnering with clinicians to improve lives globally across over 100 countries. |
14,148 | |||
| 8 |
Comfort Keeperscomfortkeepers.com
Provider of compassionate in-home senior care for over 20 years, focusing on Interactive Caregiving™ and Elevating the Human Spirit through dedicated, trained professionals |
9,649 | |||
| 9 |
Toshibatoshiba.com
A global technology company focusing on energy, infrastructure, electronics, and digital solutions to create a sustainable future for generations to come |
8,787 | |||
| 10 |
TP-Linktp-link.com
Global provider of reliable networking devices and smart home products, enhancing connectivity and serving customers in over 170 countries. |
8,604 | |||
| 11 |
Club Pilatesclubpilates.com
This company offers franchise opportunities to make Pilates accessible to more people, providing strength-training workouts at any age and fitness level |
5,998 | |||
| 12 |
Blizzard Entertainmentcareers.blizzard.com
development and publishing of popular, high-quality video games with iconic universes like Warcraft, Overwatch, Diablo, and StarCraft |
5,975 | |||
| 13 |
Skyworks Solutions, Inc.skyworksinc.com
Design and manufacture of innovative analog semiconductors enabling wireless connectivity across aerospace, automotive, broadband, cellular, medical, military, and consumer electronics markets. |
5,672 | |||
| 14 |
CoreLogiccotality.com
The company provides data, analytics, and platforms to help people find, buy, and protect homes, enabling a seamless home-ownership journey |
4,926 | |||
| 15 |
Panasonic Avionics Corporationpanasonic.aero
Global leader in providing innovative and customized inflight entertainment and communication solutions to over 300 airlines worldwide |
4,028 | |||
Want more companies than this list?This page shows the largest ones only. Connect to Tamtam to see every company that matches, filter by size, industry or growth, and reach their decision-makers. | |||||
| 16 |
Restaurant365restaurant365.com
cloud-based platform for restaurant accounting, inventory, workforce management, payroll, and integrations to optimize operations and improve guest experiences |
3,986 | |||
| 17 |
Masimomasimo.com
Develops and manufactures innovative noninvasive patient monitoring technologies and sensors to improve clinical decision-making and patient safety worldwide. |
3,667 | |||
| 18 |
Golden State Foodsgoldenstatefoods.com
A global supplier to the foodservice industry, specializing in liquid products, protein, produce, dairy, and more, with a strong focus on quality and customer service |
2,877 | |||
| 19 |
Montage Internationalmontageinternational.com
Luxury hospitality management with ultra-luxury hotels, new luxury resorts, residences, and premier golf courses in diverse and exclusive destinations worldwide |
2,833 | |||
| 20 |
Ingram Micro Commerce & Lifecycle Servicesshipwire.com
Global logistics provider offering supply chain solutions connecting people, products, and providers worldwide through a vast workforce and extensive network |
2,770 | |||
| 21 |
Ventura Foodsventurafoods.com
A leading foodservice company providing high-quality food solutions with a diverse portfolio of beloved brands, custom products, and global reach |
2,719 | |||
| 22 |
Allergan Aesthetics, an AbbVie Companyglobal.allerganaesthetics.com
Develop, manufacture, and market a portfolio of leading aesthetics products including facial injectables, body contouring, plastics, and skin care. |
2,456 | |||
| 23 |
Alteryxalteryx.com
This company provides an Analytics Automation Platform that simplifies data processes, enabling organizations globally to democratize data analytics and achieve high-impact outcomes |
2,310 | |||
| 24 |
StretchLab Franchisestretchlab.com
A California-based company offering one-on-one and group stretching services to increase mobility, reduce pain, and enhance quality of life in a fun, communal environment |
2,272 | |||
| 25 |
Mazda North American Operationsmazdausa.com
Design, manufacture, and sell vehicles worldwide, focusing on driver experience, combining tradition, versatility, refinement, and power. |
2,251 | |||
| 26 |
Razer Inc.careers.razer.com
A global lifestyle brand for gamers, offering a wide range of gaming hardware, software, and services, with a strong presence in the esports community |
1,924 | |||
| 27 |
Accurate Backgroundaccurate.com
Global provider of employment background screening and workforce monitoring services, ensuring smarter hiring decisions with comprehensive technology, extensive coverage, and intuitive compliance tools |
1,899 | |||
| 28 |
Budget Blindsfranchise.budgetblinds.com
Provider of high quality window coverings to consumers through convenient, complimentary in-home consultations at affordable prices since 1992 |
1,891 | |||
| 29 |
ADEC Innovationsadec-innovations.com
ADEC Innovations offers integrated industry expertise, data management, and software services to meet ESG needs, improve sustainability performance, and drive operational efficiencies globally |
1,801 | |||
| 30 |
iHerbch.iherb.com
A dedicated team committed to making health and wellness accessible for all through a curated selection of products and a positive culture |
1,795 | |||
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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 12, 2026.
More company lists in Irvine
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- Companies with in-house R&D in Irvine 64
- Hardware manufacturers in Irvine 63
- Manufacturers in Irvine 63
- Professional services firms in Irvine 61
- IT Services and IT Consulting companies in Irvine 52
- IT services companies in Irvine 51
- SaaS companies in Irvine 50
- Software Development companies in Irvine 42
- Financial services firms in Irvine 40
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- Companies with a mobile app in Irvine 32
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- Real Estate companies in Irvine 29
- Subscription businesses in Irvine 27
- Franchise networks in Irvine 26
- Medical device companies in Irvine 25
The same list elsewhere in United States
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