Staffing is one of the largest B2B industries in the world, generating over $174 billion in total revenue each year. It’s also growing extremely quickly, largely due to shifting workforce trends towards on-demand and flexible jobs. The United States Department of Labor predicts double-digit growth for the industry from 2021 through 2026.

Staffing Industry Analysts has published a global ranking of the world’s 100 largest staffing companies by revenue in 2021. The top 5 companies include Randstad, Adecco, Manpower Group, Allegis Group and Recruit.

Below are some statistics:

• This report finds that the largest 100 staffing firms globally generated a combined revenue of $262.9 billion (€222.2 billion) in 2021, accounting for 43% of global revenue. 
• There has been a significant increase in the performance of the 100 largest firms in this year’s report. 64 companies generated over $1 billion in revenue, whereas this was only 47 in last year’s report. 
• 43 companies are situated in the Americas, while the EMEA and APAC regions have 35 and 22 companies, respectively. 
• The U.S. is the country with the largest staffing market, accounting for 30% of global revenue in 2021. It is followed by Japan and the UK with 15% and 8%, respectively, as well as France, the Netherlands, China, Italy and Switzerland. 
• Five executive search firms are listed in the 100 largest global staffing firms. 

Randstad North America. Amsterdam, Netherlands

2019 Annual Revenue: $21.73 billion
2019 Market Share: 4.9%

Randstad is the largest human resource consulting company in the world, employing over 29,000 workers across 4,861 branches and 60 countries.

The company operates using a unit structure, with each unit composing of two consultants that separately handle client service provision and selecting candidates. Randstad brands these two services under the names Tempo Team and Randstad.

The company also has a separate division devoted to hiring for the following types of positions:

• Supervisors
• Interim specialists
• Middle and senior managers
• Engineers
• ICT Specialists
• Marketing
• Communication Specialist

Randstad also specializes in providing HR solutions and services to clients, such as HR consultancy, career support, and outplacement.

Randstad’s main portfolio of brands includes:

• Randstad
• Randstad Care
• Tempo Team
• Expectra
• Yacht

Adecco Staffing USA. Zurich, Switzerland

2019 Annual Revenue: $20.62 billion
2019 Market Share: 4.6%

Adecco is a professional service and consultancy company that directly employs over 700,000 people and another 2.8 million through contracted positions. The company operates over 5,200 branches across 60 countries.

Adecco’s main services include:

• Temporary staffing
• Career transition
• Permanent placement
• Talent development
• Consulting
• Business process outsourcing

They provide staffing across all major business sectors, such as industrial, technical, and medical. Adecco’s divides these operations across its various brands, which include:

• ADIA
• Pontoon
• Lee Hecht Harrison
• General Assembly
• Spring Professional

Manpowergroup. Milwaukee, WI

2019 Annual Revenue: $20.25 billion
2019 Market Share: 4.1%

Manpower Group is multinational outsourcing and career management firm that currently places over three million employees in positions. Nearly 500,000 of these are permanent positions.

The company operates four main divisions, each responsible for divisions in a different region. They include:

• Americas
• Asia-Pacific Middle East
• Northern Europe
• Southern Europe

They also own and operate hundreds of subsidiaries involved in recruitment services, workforce consulting, and training and development.

Its four largest brands are:

• Manpower
• Experis
• Right Management
• ManpowerGroup Solutions

Recruit. Tokyo, Japan

2019 Annual Revenue: $13.42 billion
2019 Market Share: 2.7%

Recruit Holdings is a human resources firm that provides HR consulting, staffing assistance, and advertising services. It also owns the job-search websites Indeed and GlassDoor.

The company operates primarily in Japan, where it generates approximately 60% of its total revenue. It also has locations in major countries such as the United States and Australia.

Their main subsidiaries include:

• CSI Companies. Places talent in many industries and business sectors such as financial, tech, and medical.
• Staffmark Group. Specializes in placing staff at light industrial jobs within the United States.
• Advantage Group. Provides human resources consultancy services and business solutions in the United Kingdom.
• RGF Staffing Frances. Focuses on high volume delivery of workers to large companies.
• Chandler Macleod Group. One of the largest general recruitment and human resources services firms in Australia.

Allegis global solutions. Hanover, MD

2019 Annual Revenue: $12.23 billion
2019 Market Share: 2.5%

Allegis Group is a talent management firm that directly employs nearly 20,000 employees and places over two million workers in both temporary and permanent positions. It originally focused on the engineering and aerospace industries but has since expanded to most other major fields as well.

Read Also: Top Staffing Firms in Canada

The company manages hundreds of subsidiaries, including notable brands such as:

• Aerotek. Specializes in placing staff at both temporary and permanent positions in various engineering, clerical, and clinical industries.
• TEKSystems. TEKSystems offers IT staff provisioning services to large enterprises.
• AstonCarter. Places staff in the finance and accounting industries.
• EASi. Focuses on provisioning temporary contract workers to engineering and automotive companies.

The Hays Group. London, United Kingdom

2019 Annual Revenue: $7.84 billion
2019 Market Share: 1.6%

Hays is a multinational HR consulting and staff recruitment firm that employs nearly 12,000 employees across 33 countries. Each year, it places an average of 330,000 people in positions across numerous industries.

Over recent years, the company has been expanding on two aspects of its business:

• Technology division. Hays is heavily investing in its recruitment resources for technology and remote jobs. This includes new programs for tech companies, such as free staff training and partnership discounts, as well as increased marketing on job boards and at physical job fairs.
• Company values. Hays is attempting to separate itself from competitors by emphasizing its focus on Equality, Diversity, and Inclusion (EDI). The company pays extra attention to such values when interviewing potential temporary and contract workers.

Persol Holdings. Tokyo, Japan

2019 Annual Revenue: $5.17 billion
2019 Market Share: 1.0%

Persol is a human resources company that specializes in a variety of services, including outsourcing, permanent placement, and general worker dispatching. They operate primarily in Japan, where they have 468 locations. They also have 179 locations overseas in major countries such as the United States, United Kingdom, and Australia.

The company places over 32,000 employees across many major sectors, including clerical, industrial, and technical. Their largest subsidiary is Programmed Maintenance, a staffing company that focuses on blue-collar positions.

Some other notable company brands and divisions include:

• Persol Research Development. Focuses on recruiting a variety of job titles involved in software and medical-related fields. Many of these are for permanent positions, rather than simply temporary or contracted ones.
• Dispatching and Business Process Outsourcing (BPO). Provides employee dispatching to clients, as well as a variety of human resources consultancy services.
• PersolKelly. PersolKelly is a joint venture established in 2016 between Persol holdings and Kelly Services. Its main services are staff provisioning and HR consulting. The company is the largest staffing firm in the Asia Pacific region.

Robert Half International. Menlo Park, California

2019 Annual Revenue: $4.95 billion
2019 Market Share: 1.0%

Robert Half International is a human resource consulting conglomerate. It is the world’s first accounting and the largest finance staffing company. The company manages 345 locations worldwide and staffs more than 13,000 temporary and permanent workers. It’s also a member of the SP 500 index.

Robert Half operates three main business segments:

• Consulting and temporary staffing
• Permanent placement staffing
• Internal audit and risk consulting services

The company mainly aids companies in recruiting accounting, finance, and management professionals. However, they also operate a technology segment that focuses on provisioning staff in the following fields:

• IT Infrastructure
• IT Operations
• Software engineering
• OfficeTeam

Robert Half owns Protiviti Inc, which specializes in providing governance, technology, and risk consulting services. They also own PG Lewis Associates, one of the largest cybersecurity and data forensics firms in the United States.

Kelly Services. Troy, Michigan

2019 Annual Revenue: $4.36 billion
2019 Market Share: 0.9%

Kelly Services is a multinational recruitment and human resources consulting firm. The company directly employs over 8,000 workers, spread across all 50 states and more than 30 countries.

Kelly Staffing provides both temporary and permanent employees for companies across all major industries and sectors, such as construction, legal, and technical. In 2019, they placed over 440,000 contracted workers.

Kelly Staffing’s major brands include:

• Kelly Professional Industrial
• KellyConnect
• Kelly Science Clinical
• Kelly Government Solutions
• Kelly International

Express Employment Professionals. Hickory, NC

2019 Annual Revenue: $3.56 billion
2019 Market Share: 0.7%

Express Employment Professionals is a staffing and human resources solutions company that operates in Canada, South America, Australia, and the United States.

They provide clients with part-time, full-time, and temporary workers across a wide variety of industries. The company operates many different business divisions, each focusing on staffing for a particular industry or common set of industries.

They commonly offer staffings solutions under the following categories:

• Professional
• Office services
• Light industrial

Unlike all other members on this list, Express Employment operates through a unique franchising model. Franchises average $1 million in sales during their first 12 months. Mature franchisees average annual sales of over $6.4 million.

The company places over 526,000 workers across its 830 locations.

The Largest IT Staffing Companies in the World

The IT staffing industry is booming despite recent challenges faced in the push for automation. The staffing industry has grown exponentially over the last decade, with many companies diving into this lucrative field and generating millions of dollars in revenue. If you’re looking to break into this field, knowing where you should apply your talents is important.

A great deal of information on the web can help identify which company would be best suited for your needs.

1. Allegis Group

Allegis Group is located in Hanover, Maryland, and was founded in 1983. It has over 6,000 employees that work for them at its location. Allegis Group is different from other IT staffing companies because they focus on the employment market by providing services that can help you find a job in the employment sector. The company has over 100 offices worldwide and focuses mainly on technology to help clients maintain their business operations.

The company provides services to clients by taking a holistic approach to career transition. The company is able to help clients find employment in the IT industry by finding experienced professionals that will be able to provide them with the type of services they need.

They provide jobs that are related to technology, which is why it has been chosen to be on the list of top 10 IT staffing companies in the world. They have over 6,000 employees located throughout 50 countries, which makes it one of the largest staffing companies in the world. Many of their employees have specialized skills that can relate back to their clients’ technology operations.

The company has a variety of different positions that IT professionals can be placed in to provide services for their clients. They have positions ranging from staffing specialists to contract project management positions. The company provides a variety of career opportunities for applicants with their own set of specialized skills.

2. Mondo

Mondo, based in New York, is the world’s second-largest IT staffing firm and was founded in 2000. It supplies IT professionals with a wide range of roles. The company has been able to grow exponentially within a short period of time, and it has been able to maintain its growth levels for several years.

Mondo has over 6,000 professionals at its peak. It is able to provide IT talent to many companies throughout the country. The company specializes in providing solutions that are highly technology-specific. This is what makes it stand out quite a bit. The company has established a presence stateside, which has made it the second fastest-growing IT staffing company in the U.S.

3. Queen Consulting Group

Queen Consulting Group is located in Boston, Massachusetts, and it is the third-largest IT staffing firm in the world.

It has been in operation for more than 20 years and has a global presence. The company specializes in providing solutions that are IT-specific to its clients. In 2018, Queen Consulting Group was named one of the best IT staffing companies in the country.

The company has a 75% average client retention rate. They have handled a client satisfaction rate of 98%. They have a specialization in providing IT staffing solutions. Their dedicated staffing services are what makes the company stand out. They have a single-minded focus on IT, which is what makes them the most trusted IT staffing company in the country.

4. Motion Recruitment

Motion Recruitment is located in Boston and is ranked as the world’s fourth-largest IT staffing company. They have been working with various companies and organizations, assisting them in finding top talent within the recruitment sector. They have a talent pool of more than 10,000 people who are specifically skilled to work across a number of areas, including software development, digital marketing, and management.

Beth Gilfeather is Motion’s CEO, and she is one of the top women in business and technology. She has been able to transform Motion Recruitment into a global agency with more than 90 offices spread across the globe. They have also been able to expand their operations into Europe and Asia. They have more than 36 offices across Asia and Europe, which makes them one of the largest IT staffing companies in the world.

5. Apex Systems

Apex Systems is located in Richmond, Virginia, and it is the fifth-largest IT staffing company in the world. It has been in operation for more than 26 years and has played a major role in making outsourcing a reality.

They have partnered with more than 23 Fortune 500 companies, providing IT solutions that are customized and specific to the needs of their clients. They provide customized and tailored solutions to their clients’ needs. They understand their clients’ expectations and strive to deliver solutions that go beyond what their clients want. In 2012, Apex Systems was recognized by the Best Companies Group.

The company has been listed as an SGS-certified organization. They have also been recognized for their consistency in providing excellent service. Apex Systems focuses on delivering high-quality employees, and they understand the value of the quality of the professionals they hire. They are known to provide an excellent work culture that makes it easy for people to learn and grow within their organization.