World Largest and Top Professional Services Companies List by Market Cap of July 2023

Deloitte provides Audit & Assurance services, Risk Advisory, Financial Advisory, Tax and Legal Advisory and Consulting services. Headquarters is in London, UK.

Deloitte is a provider of audit and assurance, consulting, financial advisory, risk advisory, tax and related services. They have network of member firms in more than 150 countries. 

The 27 firms still operate as separate independent legal entities and provide services in their respective countries in accordance with professional standards, and our promise of creating an impact that matters.

PricewaterCoopers provides Audit & Assurance services, Risk Advisory, Financial Advisory, Tax Advisory and Consulting services. Headquarters is in London, UK.

As on 2022, PricewaterhouseCoopers had 328,000 employees in 152 countries and annual revenues of 50.3 Billion USD.

Ernst & Young is financial auditing, consulting and tax advisory services providing company similar to Deloitte and Prince water house Coopers. Headquarters is in London, UK. They have 700 office locations in over 150 countries.

KPMG is a global network of independent member firms offering audit, tax and advisory services. Headquarters is in Netherlands.

Ecolab develops solutions and help to make the world cleaner, safer and healthier by delivering comprehensive solutions and on-site service to promote safe food, maintain clean environments, optimise water and energy use, and improve operational efficiencies. They do have customers at nearly three million locations in more than 170 countries. As on 2022, ECOLAB has 47,000 employees.

Develops solutions that address water scarcity, oil and gas supply challenges, natural resource recovery, contamination control and infection prevention – as well as monitor the latest pandemics or threats to public health.

CINTAS CORPORATION offers services like providing Uniforms, Facility Services. Cintas offers industries and companies by offering and supplying corporate identity uniform programs, providing entrance and logo mats, restroom supplies, promotional products, first aid, safety, fire protection products and services, and industrial carpet and tile cleaning. We operate more than 400 facilities in North America—including six manufacturing plants and eight distribution centers. Headquarters is in USA.

Experian is Credit Reporting Agency company with headquarters in Dublin, Ireland. They Employe 16500 people across 39 countries. They provide mainly services in North America, Latin America, the UK, Europe, the Middle East, Africa, and Asia Pacific. While Banks giving loans and credit cards to individuals and companies, generally they will verify credit report from companies like Experian and based on credit score that they will decide whether loans can be given or not. 

CGI is Software and IT company with headquarters in Montreal, USA.

World's leading Inspection, Verification, Testing and Certificating Company. Headquarters in Geneva, Switzerland.