The Carlyle Group Inc. is a multinational private equity, alternative asset management and financial services corporation based in the United States with $376 billion of assets under management. It specializes in private equity, real assets, and private credit. It is one of the largest mega-funds in the world. In 2015, Carlyle was the world's largest private equity firm by capital raised over the previous five years, according to the PEI 300 index. In the 2023 ranking however, it had slipped to fifth place.
KKR & Co. Inc., also known as Kohlberg Kravis Roberts & Co., is an American global investment company that manages multiple alternative asset classes, including private equity, energy, infrastructure, real estate, credit, and, through its strategic partners, hedge funds. As of December 31, 2023, the firm had completed more than 730 private equity investments in portfolio companies with approximately $710 billion of total enterprise value. As of December 31, 2023, assets under management (AUM) and fee paying assets under management (FPAUM) were $553 billion and $446 billion, respectively.
WPP plc is a British multinational communications, advertising, public relations, technology, and commerce holding company headquartered in London, England. It is the world's largest advertising company, as of 2023. WPP plc owns many companies, which include advertising, public relations, media, and market research networks such as AKQA, BCW, CMI Media Group, Essence Global, Finsbury, Grey, Hill+Knowlton Strategies, Mindshare, Ogilvy, Wavemaker, Wunderman Thompson, and VMLY&R. It is one of the "Big Four" agency companies, alongside Publicis, The Interpublic Group of Companies, and Omnicom Group. WPP has a primary listing on the London Stock Exchange, and is a constituent of the FTSE 100 Index.
Blackstone Inc. is an American alternative investment management company based in New York City. Blackstone's private equity business has been one of the largest investors in leveraged buyouts in the last three decades, while its real estate business has actively acquired commercial real estate. Blackstone is also active in credit, infrastructure, hedge funds, insurance, secondaries, and growth equity. As of June 2023, the company's total assets under management were approximately US$1 trillion, making it the largest alternative investment firm globally.
TPG Inc., previously known as Texas Pacific Group and TPG Capital, is an American private equity firm based in Fort Worth, Texas. TPG manages investment funds in growth capital, venture capital, public equity, and debt investments. The firm invests in a range of industries including consumer/retail, media and telecommunications, industrials, technology, travel, leisure, and health care. TPG became a public company in In January 2022, trading on the NASDAQ under the ticker symbol “TPG”.
PA Consulting Group is a professional services firm that works with public, private and third-sector organisations. It was founded in 1943 by Ernest E. Butten, Tom H. Kirkham and Dr David Seymour, who used a new approach to people management to increase productivity in munitions factories during World War 2. PA grew to become the world’s largest management consultancy by headcount in 1970.
Kearney is an American global management consulting firm with offices in more than 40 countries worldwide. Kearney's predecessor firm was founded in Chicago by James O. McKinsey in 1926; he hired Andrew Thomas "Tom" Kearney as his first partner in 1929. After James McKinsey died in 1937, the Chicago office split into its own company, led by Tom Kearney and called McKinsey, A.T. Kearney, and Company. In 1947, it was renamed A.T. Kearney and Company.
Apax Partners LLP is a British private equity firm, headquartered in London, England. The company also operates out of six other offices in New York, Hong Kong, Mumbai, Tel Aviv, Munich and Shanghai. As of December 2023, the firm had raised and advised funds of approximately $65 billion (USD). Apax Partners is one of the oldest and largest private equity firms operating on an international basis.
Visma is a privately held company headquartered in Oslo, Norway, that provides business software and information technology-related development and consultancy. The majority of the company is owned by HgCapital, a private equity firm.
Wella AG is a company specializing in hair care, styling, colorants, and other beauty products, and was founded in 1880 in Germany by Franz Ströher. Its headquartered in Darmstadt, Germany. The company was controlled by Procter & Gamble from 2003 until it was sold to Coty in 2015 along with some 40 other P&G brands. On December 1, 2020, Coty completed the sale of the Wella, Clairol, OPI and ghd brands stake to American private equity firm KKR for $2.5bn in cash whilst retaining 40% stake in the standalone company.
WSP Global Inc. is a Canadian consulting firm working mostly in the built environment. It was created in 2012, following Montreal-based Genivar's takeover of British firm WSP Group plc. It is listed on the Toronto Stock Exchange. After the purchase of New York-headquartered professional services firm Parsons Brinckerhoff in October 2014, WSP effectively became one of the largest professional services firms in the world, with approximately 66,500 employees in 500 offices serving in 40 countries.
Alberta Investment Management Corporation (AIMCo) is a Canadian Crown corporation and institutional investor established to manage several public funds and pensions headquartered in Edmonton, Alberta. AIMCo was established by an act of the Legislative Assembly of Alberta in 2008 under the government of Progressive Conservative Premier Ed Stelmach.
The Canada Pension Plan Investment Board, operating as CPP Investments, is a Canadian Crown corporation established by way of the 1997 Canada Pension Plan Investment Board Act to oversee and invest the funds contributed to and held by the Canada Pension Plan (CPP).
Private equity in the 2000s represents one of the major growth periods in the history of private equity and venture capital. Within the broader private equity industry, two distinct sub-industries, leveraged buyouts and venture capital expanded along parallel and interrelated tracks.
Charterhouse Capital Partners is a London based private equity investment firm focused on investing in European mid-market companies valued between €200m and €1.5bn. The company targets investments across the services, healthcare, specialised industrials and consumer sectors.
Citec is a company that provides plant and product engineering, engineering consultancy as well as in technical documentation. The company trades within energy, process, oil & gas and machinery & equipment sectors.
SLR Consulting is a privately owned international sustainability consultancy with offices in Europe, North America, South America, Australasia, and Africa. In 2019, it reported revenues of £150.8 million. Its purpose is ‘Making Sustainability Happen’, which it achieves through its global team of expert advisors and technicians, who partner with clients to tackle some of the world’s most complex sustainability challenges.
Arcadis NV is a global design, engineering and management consulting company based in the Zuidas, Amsterdam, Netherlands. It currently operates in excess of 350 offices across 40 countries. The company is a member of the Next 150 index.
FGS Global is a public relations company formed in 2021 by the merger of Finsbury Glover Hering and Sard Verbinnen & Co. It is a subsidiary of British advertising and media conglomerate WPP plc.
RSK Group is a privately held UK-based environmental, engineering and technical services group, comprising over 175 companies employing some 10,500 people and with turnover of £1.22bn in 2023.
US$1,323 million (2023) [5] 
