Aon plc is a British-American professional services firm that offers a range of risk-mitigation products. Aon has approximately 50,000 employees across 120 countries.
Arthur Andersen LLP was an American accounting firm based in Chicago that provided auditing, tax advising, consulting and other professional services to large corporations. By 2001, it had become one of the world's largest multinational corporations and was one of the "Big Five" accounting firms. The firm collapsed by mid-2002, as details of its questionable accounting practices for energy company Enron and telecommunications company WorldCom were revealed amid the two high-profile bankruptcies. The scandals were a factor in the enactment of the Sarbanes–Oxley Act of 2002.
PricewaterhouseCoopers International Limited is a multinational professional services brand of firms, operating as partnerships under the PwC brand. It is the second-largest professional services network in the world and is considered one of the Big Four accounting firms, along with Deloitte, EY, and KPMG.
Management consulting is the practice of providing consulting services to organizations to improve their performance or in any way to assist in achieving organizational objectives. Organizations may draw upon the services of management consultants for a number of reasons, including gaining external advice and accessing consultants' specialized expertise regarding concerns that call for additional oversight.
Accenture plc is a global multinational professional services company originating in the United States and headquartered in Dublin, Ireland, that specializes in information technology (IT) services and management consulting. A Fortune Global 500 company, it reported revenues of $64.9 billion in 2024.
Protiviti Inc. (Protiviti) is a global consulting firm headquartered in Menlo Park and San Ramon, California, that provides consulting in internal audit, risk and compliance, technology, business processes, data analytics and finance. It is a subsidiary under Robert Half. Protiviti and its independently and locally owned Member Firms serve clients through a network of more than 85 locations in over 27 countries.
Deloitte Touche Tohmatsu Limited, commonly referred to as Deloitte, is a multinational professional services network based in London, England. Deloitte is the largest professional services network by revenue and number of employees in the world and is one of the Big Four accounting firms, along with EY, KPMG, and PwC.
Arthur Levitt Jr. is the former chairman of the United States Securities and Exchange Commission (SEC). He served from 1993 to 2001 as the twenty-fifth and longest-serving chairman of the commission. Widely hailed as a champion of the individual investor, he has been criticized for not pushing for tougher accounting rules. Since May 2001 he has been employed as a senior adviser at the Carlyle Group. Levitt previously served as a policy advisor to Goldman Sachs and is a Director of Bloomberg LP, parent of Bloomberg News.
The Charles Schwab Corporation is an American multinational financial services company. It offers banking, commercial banking, investing and related services including consulting, and wealth management advisory services to both retail and institutional clients. It has over 380 branches, primarily in financial centers in the United States and the United Kingdom. It is on the list of largest banks in the United States by assets. As of December 31, 2023, it had $8.5 trillion in client assets, 34.8 million active brokerage accounts, 5.2 million corporate retirement plan participants, and 1.8 million banking accounts. It also offers a donor advised fund for clients seeking to donate securities. It was founded in San Francisco, California, and is headquartered in Westlake, Texas.
Morningstar, Inc. is an American financial services firm headquartered in Chicago, Illinois, founded by Joe Mansueto in 1984. It provides an array of investment research and investment management services.
Wolters Kluwer N.V. is a Dutch information services company. The company serves legal, business, tax, accounting, finance, audit, risk, compliance, and healthcare markets.
AECOM is an American multinational infrastructure consulting firm headquartered in Dallas, Texas.
Hitachi Consulting Corporation was an American international management and technology consulting firm with headquarters in Dallas, Texas. It was founded in November 2000 as a subsidiary of the Japanese corporation Hitachi, and employed approximately 6,500 people in the US, Japan, Brazil, China, India, Portugal, Singapore, Spain, the UK, Germany, and Vietnam.
Forvis Mazars, LLP ranks among the U.S. top 10 public accounting firms, providing assurance, tax, and consulting services. In June 2024, Forvis Mazars Global network was formed between FORVIS and Mazars.
Verisk Analytics, Inc. is an American multinational data analytics and risk assessment firm based in Jersey City, New Jersey, with customers in insurance, natural resources, financial services, government, and risk management sectors. The company uses proprietary data sets and industry expertise to provide predictive analytics and decision support consultations in areas including fraud prevention, actuarial science, insurance coverage, fire protection, catastrophe and weather risk, and data management.
Sheshunoff Consulting + Solutions (SCS) is a company that provides consulting and advisory services to the financial services industry. It was founded in 1971 as Sheshunoff Information Services, was later sold away from and then back to Sheshunoff Management Services, and then re-named Sheshunoff Consulting + Solutions. The company is headquartered in Austin, Texas. SCS focuses on management consulting, risk management, technology solutions, and investment banking.
Huron Consulting Group, commonly known as Huron, is a management consulting firm offering services to the healthcare, life sciences, commercial, and higher education industries.
Moody's, previously known as Moody's Analytics, is a subsidiary of Moody's Corporation established in 2007 to focus on non-rating activities, separate from Moody's Investors Service. It provides economic research regarding risk, performance and financial modeling, as well as consulting, training and software services. Moody's is composed of divisions such as Moody's KMV, Moody's Economy.com, Moody's Wall Street Analytics, the Institute of Risk Standards and Qualifications, and Canadian Securities Institute Global Education Inc.
Multidisciplinary professional services networks are organizations formed by law, accounting and other professional services firms to offer clients new multidisciplinary approaches solving increasingly complex issues. They are a type of professional services network which operates to provide services to their members. They operate in the same way as accounting firm networks and associations and law firm networks. They do not practice a profession such as law or accounting but provide services to members so they can serve clients needs. Their aim is to provide members involved in doing business internationally with access to experienced, tried and tested, reliable, and responsive professional advisers who know their local jurisdiction intimately as well as the intricacies of cross border business.
Andersen Tax LLC is a tax firm headquartered in San Francisco, California, United States. It provides tax, valuation, financial advisory and consulting services to individuals and corporate clients. It has offices in Chicago, Baltimore, Boston, Dallas, Florham Park, Greenwich, Harrisburg, Houston, Long Island, Los Angeles, New York City, Orange County, Philadelphia, Pittsburgh, San Francisco, Seattle, Silicon Valley, Washington, D.C., West Palm Beach, Woodland Hills as well as South Africa.
US$$7.24 billion (2022)
