| # | Company | Employees |
|---|---|---|
| 1 |
Robert Halfroberthalf.com
Connecting skilled professionals with companies through contract, temporary, and permanent placements in finance, technology, marketing, legal, and administrative sectors. |
26,429 |
| 2 |
Korn Ferrykornferry.com
It is a global consulting firm specializing in organizational design, hiring, workforce motivation, and professional development for career advancement. |
21,328 |
| 3 |
Remoteremote.com
Comprehensive HR and payroll platform enabling companies to hire, manage, and pay employees worldwide with compliance and local expertise. |
12,042 |
| 4 |
Handshakejoinhandshake.com
career platform connecting Gen Z students, alumni, employers, and educators to facilitate job discovery and workforce building. |
9,901 |
| 5 | 9,873 | |
| 6 |
Mercormercor.com
Utilizing AI technology, Mercor streamlines the hiring process by sourcing, assessing, and hiring talent seamlessly for businesses |
8,180 |
| 7 |
Turingturing.com
Turing matches vetted remote developers with companies quickly using AI, disrupting traditional recruiting to create a Talent Cloud for elite careers |
6,973 |
| 8 |
AppleOne Employment Servicesappleone.com
A full-service employment agency focusing on helping career seekers and finding great employees through personalized solutions for over five decades |
6,277 |
| 9 |
Robert Half Finance & Accountingroberthalf.com
Specialized financial recruitment service with experienced recruiters connecting skilled accounting and finance professionals with leading companies worldwide |
4,940 |
| 10 |
TriNettrinet.com
A provider of full-service HR solutions tailored for small and medium-size businesses, offering expertise in human capital, benefits, compliance, payroll, and technology |
4,462 |
| 11 |
Robert Half Technologyroberthalf.com
A leading provider of technology professionals for projects ranging from web development to network security, with over 120 worldwide locations |
4,196 |
| 12 |
Magnit Globalmagnitglobal.com
Global leader in contingent workforce management, offering an Integrated Workforce Management platform for optimizing talent, diversity, operational, and financial success |
3,927 |
| 13 |
Express Employment Professionals - Garden Groveexpresspros.com
The company specializes in connecting quality companies with talented individuals, facilitating successful matches for both employers and job seekers |
3,920 |
| 14 |
Clipboardclipboardworks.com
Platform connecting healthcare facilities and schools with local professionals for unfilled shifts, improving care and offering flexible, higher-paying work. |
3,716 |
| 15 |
Accountempsroberthalf.com
Specialized temporary staffing firm for accounting, finance, and bookkeeping professionals, providing exceptional service to skilled professionals and leading companies worldwide |
3,544 |
| 16 |
PSG Global Solutionspsgglobalsolutions.com
PSG provides outsourced recruiting support to the staffing industry, delivering high-performance results and cost savings through offshore centers in the Philippines |
3,331 |
| 17 |
Entertainment Partnersep.com
A global leader in entertainment production management, payroll, residuals, and incentives solutions, also offering casting and payroll services for background actors |
3,070 |
| 18 |
IDC Technologies, Inc.idctechnologies.com
Digital transformation services including AI, cloud, cybersecurity, enterprise solutions, licensing, staffing, and scalable smart digital products for global clients. |
2,623 |
| 19 |
Central Castingcentralcasting.com
Experienced background talent provider offering comprehensive casting services for diverse film and television productions through regional offices across multiple major American markets. |
2,538 |
| 20 |
Instaworkinstawork.com
Instawork is a labor marketplace connecting local businesses and skilled hourly professionals in various countries, driven by creating economic opportunities |
2,490 |
| 21 |
PrideStaffpridestaff.com
This company focuses on providing exceptional client service and quality candidates, personalized solutions, building loyalty, and celebrating success in the staffing industry |
2,291 |
| 22 |
Korn Ferry Futurestepkornferry.com
Futurestep, a division of Korn Ferry, provides innovative talent solutions through data-driven insights, strategic collaboration, and advanced technology |
2,251 |
| 23 |
PRIDE Industriesprideindustries.com
Delivering business excellence with a positive social impact by providing career opportunities and training for people with disabilities and other barriers to employment |
2,195 |
| 24 |
Amada Senior Careamadaseniorcare.com
Empowering pharma and medical device sales reps to start their own businesses in senior care, offering support, financial independence, and community impact |
2,177 |
| 25 |
Robert Half Management Resourcesroberthalf.com
A leading provider of senior financial and business systems professionals for interim roles worldwide, specializing in finance, IT, audit, and more |
2,125 |
| 26 |
Anywhereanywhererecruit.com
The company has ceased operations They are thanking everyone for their support and partnership |
2,122 |
| 27 |
Scoot Educationscoot.education
A company dedicated to placing exceptional teachers in educational settings through personalized service, tech-based solutions, and an innovative earn-and-learn academy |
2,051 |
| 28 |
Creative Circlecreativecircle.com
Creative Circle offers marketing and creative services to help companies tackle business challenges through talent acquisition, studio and agency support, flex benches, and consulting |
2,013 |
| 29 |
Outsourceoutsource.net
National staffing firm providing qualified technicians for temporary and permanent placement in low voltage and electrical roles, with 22 locations nationwide |
1,962 |
| 30 |
E-Solutionse-solutionsinc.com
A talent-driven talent acquisition company offering workforce, cloud, salesforce, global payrolling, MSP/VMO, EOR & AOR services with global presence and industry expertise |
1,961 |
| 31 |
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 |
| 32 |
GIShireright.com
Established in 1966, this company provides background screening services to a variety of industries, helping organizations hire, engage, and verify employees, volunteers, and contractors |
1,863 |
| 33 |
Office Beacon LLCofficebeacon.com
Global outsourcing services provider offering call center, pre-press graphics, accounting and more to businesses in over twelve industries worldwide Founded in 2001 |
1,843 |
| 34 |
Qqconnects.com
An IT & Digital recruitment firm specializing in delivering qualified and diverse talent for technology, product, and digital roles nationwide |
1,806 |
| 35 |
Checkr, Inc.checkr.com
technology company providing a data platform to assess risk, modernize hiring processes, and build trusted workplace relationships |
1,796 |
| 36 |
OfficeTeamroberthalf.com
Leading staffing service specializing in placing skilled office and administrative support professionals on temporary and temporary-to-full-time basis worldwide Offering superior training and resources to candidates |
1,783 |
| 37 |
ChildCare Careerschildcarecareers.com
Staffing firm specializing in providing fully qualified teachers and directors to child care centers and programs, offering on-demand substitutes for short or long-term assignments |
1,763 |
| 38 |
Host Healthcare, Inc.hosthealthcare.com
Travel healthcare staffing agency specializing in nursing, allied, and therapy jobs Award-winning team with top ratings and recognized as a top employer |
1,701 |
| 39 |
OptimHireoptimhire.com
Facilitating global collaboration, OptimHire revolutionizes the way professionals, recruiters, and companies work together anytime, anywhere across time zones and countries |
1,673 |
| 40 |
Pacific Maritime Associationpmanet.org
A non-profit organization serving as a collective bargaining agent for shipping industry, negotiating labor contracts and providing administrative services for West Coast ports |
1,633 |
| 41 |
Sequoiasequoia.com
Sequoia specializes in total people investment, helping companies optimize outcomes through comprehensive rewards, including compensation, benefits, wellbeing, HR, payroll, and business protection |
1,607 |
| 42 | 1,567 | |
| 43 | 1,539 | |
| 44 |
PRO Unlimitedmagnitglobal.com
Global leader in contingent workforce management with Integrated Workforce Management platform for optimizing talent, diversity goals, and achieving operational and financial success |
1,486 |
| 45 |
Swing Educationswingeducation.com
Connecting schools with high-quality substitute teachers, making it easy to find the right substitute at the right time to improve the education experience |
1,454 |
| 46 |
Medelymedely.com
Medely is a healthcare labor marketplace connecting professionals with high-paying jobs and providing facilities with workforce management tools Join the team revolutionizing healthcare |
1,344 |
| 47 |
HOSPITALITY recruiter recruiters EXECUTIVE search hotel chef restaurant manager +1-310-691-2586hospitalityexecutive.com
An international hospitality recruitment firm specializing in luxury hotel, restaurant, and chef placements across various countries and regions worldwide |
1,339 |
| 48 |
FlexCareflexcarestaff.com
Nationwide leader in healthcare staffing services for acute care facilities, offering high pay, hassle-free programs for travel nurses and allied health professionals |
1,333 |
| 49 |
Robert Half Legalroberthalf.com
Legal staffing division providing highly skilled legal professionals on a project or full-time basis to law firms and corporate legal departments globally |
1,298 |
| 50 | 1,225 | |
| 51 |
Wing Assistantwingassistant.com
Provides top-tier remote talent for SMBs, startups, and executives to handle tasks like Social Media Management, Data Entry, Sales Calling, allowing focus on business growth |
1,221 |
| 52 |
IntelliProintelliprogroup.com
A growing IT services and HR solutions company offering strategic planning, implementation, support, and HR services for businesses expanding internationally |
1,191 |
| 53 |
Partners Personnelpartnerspersonnel.com
A nationwide full-service staffing company dedicated to connecting top talent with clients and fostering successful careers for associates |
1,177 |
| 54 |
Solugenixsolugenix.com
Innovative information technology services provider offering unmatched technology solutions, talent recruitment, and managed services to drive growth and innovation for global corporations |
1,143 |
| 55 |
The Creative Grouproberthalf.com
Specializes in placing skilled professionals in interactive, design, marketing, advertising, and public relations roles on project, temporary-to-hire, and full-time basis Offices in US and Canada |
1,131 |
| 56 |
Goodwill Southern Californiagoodwillsocal.org
Providing education, training, work experience, and job placement services to individuals with disabilities, veterans, and youth while promoting sustainability through thrift stores |
1,109 |
| 57 |
The VA Hub PHthevahub.org
The company provides fun, fast-paced opportunities for career growth in a rapidly expanding virtual assistant business |
1,095 |
| 58 |
Oil and Gas Recruiteroilplanters.com
Specializing in oilfield recruitment, this company focuses on connecting candidates with job opportunities and careers in the industry |
1,095 |
| 59 |
Blackstone Consulting, Inc.blackstone-consulting.com
A minority-owned company providing environmental, security, facilities maintenance, staffing, and food service management services to national and international clients since 1991 |
1,091 |
| 60 |
Hotel jobs globally
Global recruitment platform specializing in hotel, cruise, and cabin crew job postings to facilitate career advancement for candidates within the hospitality sector. |
1,049 |
| 61 |
Industryindustryrecruiterai.com
Revolutionizing recruitment for hospitality, retail, and grocery industries with expert hourly and skilled labor matchmaking, achieving placements in under 24 hours |
985 |
| 62 |
Boldrboldrimpact.com
Ethical outsourcing company building global teams to provide quality customer experiences while empowering local talent in various countries |
970 |
| 63 |
Nelson Connectsnelsonconnects.com
Specializes in recruiting and staffing, connecting job seekers with roles in Fortune 100 companies, government, nonprofits, and startups. |
960 |
| 64 |
Ultimate Staffingultimatestaffing.com
A leading staffing company providing temporary, temporary-to-hire, direct hire, and payrolling services, with a focus on creating remarkable experiences for clients and candidates |
952 |
| 65 |
Trusted Healthtrustedhealth.com
A leading labor marketplace and workforce management platform for healthcare, connecting nurses to job opportunities and offering full employer-of-record services |
893 |
| 66 |
Nelson Companiesnelsonjobs.com
A leading staffing solutions provider offering innovative workforce solutions, including staffing, recruiting, payrolling, and independent contractor compliance across various industries |
880 |
| 67 |
Kimco Staffing Services, Inc.kimco.com
A trusted staffing agency offering office, accounting, technical, industrial, and call center placements with over 30 years of award-winning service |
857 |
| 68 |
TalentPoptalentpop.co
Customer Service Management Agency for E-Commerce brands, transforming customer service into a revenue-generating channel with end-to-end support for building and optimizing teams |
854 |
| 69 |
Quantum World Technologies Inc.quantumworldit.com
A leading service provider offering IT consulting, services, and business process outsourcing with a focus on various industries globally Emphasizing safety and business continuity during the pandemic |
853 |
| 70 |
Lucas Groupkornferry.com
A recruitment firm acquired by Korn Ferry, matching clients with talented professionals to achieve career goals, benefiting from a century of search expertise |
845 |
| 71 |
Eastridge Workforce Solutionseastridge.com
Employee-owned firm providing global talent acquisition, workforce management, compliance, and recruitment solutions across seven major industries. |
838 |
| 72 |
Elite Networkenhire.com
A San Francisco Bay Area staffing and consulting firm with expertise in recruiting top talent in accounting, IT, marketing, and sales |
782 |
| 73 | 755 | |
| 74 |
AgileOneagile-one.com
Global workforce and procurement solutions provider for Fortune 1000 companies, specializing in streamlining HR, procurement, and supplier processes for efficiency and cost savings |
742 |
| 75 |
Career Group Companiescareergroupcompanies.com
Specializes in staffing and recruitment for administrative, creative, fashion, events, and executive professionals across multiple divisions. |
728 |
| 76 |
Truck Drivers R Ustruckdriversrus.net
A leading trucking job board connecting qualified drivers with businesses nationwide since 2008, specializing in transportation recruitment and client-driver satisfaction |
723 |
| 77 |
VARITE INCvarite.com
Global staffing services provider with a focus on technology initiatives for Fortune 100 companies, offering consulting, team augmentation, and business process outsourcing |
714 |
| 78 |
Epic Staffing Groupepicstaffinggroup.com
A national staffing provider specializing in Life Sciences and Healthcare industries, offering contract, permanent, travel, interim, and international placement services |
713 |
| 79 |
CCS Global Techccsglobaltech.com
CCS Global Tech specializes in providing business intelligence strategies across multiple industries, delivering high-quality solutions within budget while prioritizing social impact |
709 |
| 80 |
PTS Advanceptsadvance.com
PTS Advance partners with candidates, clients, and partners in various industries to provide staffing, recruitment, and workforce management services, prioritizing career advancement and business growth |
705 |
| 81 |
iFIVE Globalifiveglobal.com
iFive Global provides offshore staffing solutions for the medical and legal industries, focusing on integrity, innovation, information, intelligence, and insight for success |
682 |
| 82 |
call center group
An independent boutique search firm specializing in recruiting for Call Center, Customer Service, and CRM roles for various clients |
680 |
| 83 |
Animation Jobsanimatedjobs.com
A reputable platform with high traffic and a large animator following, trusted by major animation studios worldwide, predominantly accessed by UK and North American visitors |
674 |
| 84 |
SA Technologies Inc.satincorp.com
A fast-growing IT consulting firm in the US that simplifies business challenges and accelerates cloud transformation with smart solutions globally |
672 |
| 85 |
ATN Event Staffingatneventstaffing.com
Experiential and event marketing staffing company offering custom solutions with brand ambassadors, models, and teams to create engaging interactions |
671 |
| 86 |
Human Resources International (HRI)hri.com
Specializing in executive search and contract staffing for human resources roles, serving clients and candidates across all industries and company sizes |
663 |
| 87 |
JWilliams Staffingjwilliamsstaffing.com
A leading provider of highly trained real estate professionals, committed to maintaining exceptional standards and guaranteeing client satisfaction |
621 |
| 88 |
Child Care Careerschildcarecareers.com
Comprehensive resource for child care careers, preschool teachers, and daycare staffing needs Providing all services in one convenient place |
617 |
| 89 |
NextGen | GTA: A Kelly Telecom Companykellytelecom.com
Provider of telecom engineering and deployment solutions for legacy, 5G, and private networks, offering staffing, scope of work, and direct hire services |
609 |
| 90 |
CyberCoderscybercoders.com
A leading recruiting firm with skilled recruiters filling thousands of positions across various industries using proprietary technology for successful placements |
608 |
| 91 |
Westways Staffing Services, Incwestwaysstaffing.com
A leading nursing registry in the US focused on providing personalized care, career advancement, and premium staffing solutions for healthcare professionals |
600 |
| 92 |
Oysterยฎoysterhr.com
This company facilitates global hiring, enabling companies to easily recruit talent from anywhere, striving for a more inclusive and equal world |
595 |
| 93 |
FLORESflores-financial.com
A leading provider of financial services and HR solutions for hospitality, grocery, and retail industries, offering expertise, tools, and technology for business success and growth |
587 |
| 94 |
Centerline Driverscenterlinedrivers.com
A company specializing in recruiting safe, compliant drivers for Fortune 1000 and mid-sized companies, focused on productivity, cost control, and superior customer service |
583 |
| 95 |
Century Groupcentury-group.com
Executive recruiting and professional staffing firm specializing in providing top-tier accounting and finance talent to various companies on a direct hire, temporary, and temp-to-hire basis |
580 |
| 96 |
Altezzasys INCaltezzasys.com
A global technology services provider offering staffing, outsourcing, consulting, and digital solutions to align technology innovation with business strategy worldwide |
571 |
| 97 | 570 | |
| 98 |
NutritionJobsnutritionjobs.com
An online career center connecting Registered Dietitians and nutrition professionals with job opportunities, resume posting, and career courses since 2000 |
568 |
| 99 |
Staff Prostaffpro.com
A nationally recognized crowd management and event staffing company providing professional personnel and managed services to venues and events nationwide |
564 |
| 100 |
Denken Solutions, Inc.denkensolutions.com
This company provides Staffing Services, SAP Solutions, and Digital Transformation Services in the IT, Engineering, and Healthcare sectors |
560 |
Turn this list into pipeline
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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 Oct 24, 2026.
More company lists in California
- The largest companies in California 12,813
- SaaS companies in California 1,617
- Software Development companies in California 1,386
- Venture capital and private equity firms in California 786
- IT Services and IT Consulting companies in California 730
- Venture Capital and Private Equity Principals companies in California 645
- AI companies in California 606
- AI-native companies in California 552
- Retail chains in California 527
- Hospitals and Health Care companies in California 519
- Financial Services companies in California 513
- Financial services firms in California 503
- Education providers in California 498
- IT services companies in California 428
- Manufacturers in California 417
- Technology, Information and Internet companies in California 413
- Higher Education companies in California 376
- Public sector organisations in California 337
- Hardware manufacturers in California 335
- Critical infrastructure operators in California 293
- Government Administration companies in California 279
- Healthcare providers in California 277
- Education Administration Programs companies in California 277
- Real Estate companies in California 275
The same list elsewhere in United States
- Recruitment and staffing agencies in the United States 1,149
- Recruitment and staffing agencies in Texas 135
- Recruitment and staffing agencies in New York State 122
- Recruitment and staffing agencies in Florida 84
- Recruitment and staffing agencies in Georgia 74
- Recruitment and staffing agencies in New Jersey 71
- Recruitment and staffing agencies in Illinois 54
- Recruitment and staffing agencies in Pennsylvania 40
- Recruitment and staffing agencies in Michigan 34
- Recruitment and staffing agencies in Virginia 33
- Recruitment and staffing agencies in Massachusetts 27
- Recruitment and staffing agencies in Maryland 26
- Recruitment and staffing agencies in Ohio 26
- Recruitment and staffing agencies in New York 88
- Recruitment and staffing agencies in Houston 37
- Recruitment and staffing agencies in Atlanta 33
- Recruitment and staffing agencies in Chicago 27
- Recruitment and staffing agencies in San Francisco 26