Services

The 10 Largest Janitorial Companies In The United States

The 10 Largest Janitorial Companies in the United States (2026 Update) Largest Janitorial Companies Research Summary The largest janitorial company in the US is ABM Industries, with a revenue of $7.8 billion and 140,000 employees. As of 2022, the US janitorial service industry has a market size of $97.6 billion. There are over 1.47 million […]

The 10 Largest Waste Management Companies In The United States

The 10 Largest Waste Management Companies in the United States (2026) Largest Waste Management Companies Research Summary The largest waste management company in the US is Waste Management Inc, with a revenue of $19.7 billion and 49,500 employees. As of 2026, the US waste management industry has a market size of $75 billion. Over 300 […]

The 10 Largest Multilevel Marketing Companies In The United States

The 10 Largest Multilevel Marketing Companies In The United States Largest Multilevel Marketing Companies Research Summary The largest multilevel marketing company in the U.S. is Amway, with a revenue of $8.1 billion and at least 15,000 employees. As of 2021, the global MLM industry had a market size of $189.7 billion. The MLM industry employs […]

The 10 Largest For-Profit Education Companies In The World

The largest for-profit education company in the world is TAL Education, with a revenue of $4.5 billion and over 30 million students.

The 15 Largest Law Firms In The United States

The largest law firm in the U.S. is Kirkland Ellis, with a revenue of $6.04 billion and 2,307 employees.

The 15 Largest Marketing Companies In The World

The 15 Largest Marketing Companies In The World (2026 Edition) Largest Marketing Companies Research Summary The largest marketing company in the world is Accenture Interactive, with a revenue of $62 billion. As of 2026, the global marketing industry has a market size of $321 billion. The global marketing industry is projected to grow at a […]

The 10 Largest Advertising Agencies In The World

Largest Advertising Agencies Research Summary The largest advertising agency in the world is WPP plc, with a revenue of $19.2 billion. As of 2025, global ad agencies have a market size of $766 billion. Americans are exposed to between 6,000-10,000 ads per day. The global advertising agency market is projected to grow at a CAGR […]

The 10 Largest Lobbyist Groups In The United States

The 10 Largest Lobbyist Groups in the United States (2026 Edition) Largest Lobbyist Groups Research Summary The largest lobbyist group in the U.S. is the National Association of Realtors, which spent over $84 million on lobbying in 2022. In total, over $4.1 billion was expended on federal lobbying by various organizations in 2022. There are […]

15 Largest Consulting Companies In The World

15 Largest Consulting Companies in the World (2026 Edition) Largest Consulting Companies Research Summary The largest consulting company in the world is Tata Group, with an annual revenue of $128 billion. As of 2022, the global management consulting industry had a market size of $973.67 billion. There are 1,912,761 people employed in the management consulting […]

10 Largest HR Consulting Firms In The World

Largest HR Consulting Firms Research Summary The largest HR consulting firm in the world is Accenture, with a revenue of $61.6 billion. As of 2023, the global HR consulting industry has a market size of $148.6 billion. The median salary of an HR consultant is $71,882. The global HR advisory services market is projected to […]

15 Largest Construction Engineering Companies In The United States

Largest Engineering Companies Research Summary The largest engineering company in the U.S. is WSP USA, with a revenue of $8.8 billion. As of 2026, the U.S. engineering services market size is $1.68 billion. Women account for just 10.2% of all construction engineers in the U.S. The U.S. engineering services market is projected to grow at […]

The 10 Largest Recruiting Firms In The United States

Largest Recruiting Firms in the United States: 2026 Overview The largest recruiting firm in the U.S. is Adecco Staffing USA, with a revenue of $24.81 billion. As of 2025, the U.S. staffing and recruiting industry is valued at $185.5 billion. Over 90% of companies engage staffing and recruitment agencies for their hiring needs. The U.S. […]

15 Largest Photography Companies In The World

15 Largest Photography Companies in the World The photography industry has undergone a remarkable transformation over the past century, evolving from black-and-white film to the digital age where high-quality cameras are now accessible in smartphones. As we move further into 2026, the landscape continues to shift, driven by advancements in technology and changing consumer preferences. […]

10 Largest Security Companies In The World

10 Largest Security Companies in the World (2026 Update) A security company specializes in providing both armed and unarmed security services to residential and commercial clients. These companies offer a range of services, including guard and patrol services, bodyguards, guard dogs, and parking security. Many also deliver advanced operational services aimed at preventing unauthorized activity […]

10 Largest Temp Agencies In The World

10 Largest Temp Agencies In The World The staffing industry has emerged as one of the largest sectors in the B2B landscape, generating approximately $174 billion in annual revenue. This sector continues to expand rapidly, driven by evolving workforce dynamics that emphasize on-demand and flexible employment opportunities. According to projections from the United States Department […]

10 Largest Warehousing Companies In The World

10 Largest Warehousing Companies In The World (2026 Update) The global warehousing industry has evolved significantly, now valued at approximately $3 trillion in 2026, reflecting a growth trajectory bolstered by sustained e-commerce expansion and technological advancements. The industry’s resilience has been showcased through the adaptation to new logistics technologies and hybrid supply chain models. This […]

10 Largest PR Firms In The World

10 Largest PR Firms In The World (2026 Edition) In today’s fast-paced digital landscape, maintaining a positive public image is more crucial than ever for companies, brands, and celebrities. Public relations firms are essential in navigating this complex environment, using their expertise to manage reputations and mitigate any negative press that may arise. Among the […]

15 Largest Insurance Companies In The United States

15 Largest Insurance Companies in the United States (2026 Update) While we may not like to think about it, being prepared for unexpected events is crucial. From medical emergencies to property damage or auto accidents, insurance plays a vital role in mitigating the impact of unforeseen circumstances. Insurance serves to safeguard individuals and businesses across […]