Started in the United States in 1937 as the employee benefits department of Marsh & McLennan, Inc., our company took the name of “William M. Mercer” in 1959, when Marsh & McLennan acquired William M. Mercer Limited, a Canadian firm founded by William Manson Mercer in 1945. In 1975, Mercer became a wholly-owned subsidiary of Marsh & McLennan Companies, Inc. In 2002, we changed our corporate name to Mercer Human Resource Consulting. The company became Mercer in 2007.


Mercer has grown significantly in size and service capabilities through careful recruiting efforts and a series of mergers with other top-quality firms. Some of the recent acquisitions, mergers and other events that have contributed to the making of Mercer are included below.




$4.2 billion in revenue.

81-year history.

Four business segments.

20,000+ colleagues.

Operations in over 130 countries

 Mercer Acquires Denarius2014


Mercer has acquired Denarius, a leading compensation and benefits survey and information products consulting firm based in Santiago, Chile.

Mercer Acquires Firm In Chile




 Private Market Specialist SCM Acquired


Mercer announced that, subject to regulatory approvals, it has entered into a definitive agreement to acquire SCM Strategic Capital Management AG (SCM), a Swiss-based specialist private markets advisor and delegated solutions provider.

Mercer Acquires SCMe



 Acquisition Of Jeitosa Completed


Mercer completed the acquisition of the business of Workday Services Partner Jeitosa Group International, a leading global HR business consultancy and IT systems integration firm.

Mercer Acquires Jeitosa




 Mercer Acquires Stake In Alexander Forbes



Mercer entered into a definitive agreement to acquire a 34% stake in South Africa-based Alexander Forbes Group Holdings Limited (Alexander Forbes).

Stake In Alexander Forbes




 Mercer Acquires Transition Assist


In March 2014, Mercer reached a definitive agreement to purchase Transition Assist, a retiree exchange specializing in helping retirees in employer-sponsored plans select Medicare supplemental health care insurance. The retiree exchange offers solutions through a licensed call center and professionally-trained benefits counselors. Transition Assist will become part of the full suite of solutions offered by Mercer Marketplace.

Transition Assist Acquired




 GRS In South Africa Acquired2013


Mercer announced in September 2013 that it had acquired Global Remuneration Solutions (Pty) Ltd. (GRS), a leading compensation and benefits survey data and rewards information provider headquartered in South Africa. GRS conducts compensation and benefits surveys in 36 countries across sub-Saharan Africa and provides a wide range of rewards and mobility products and consulting to many local and international organizations operating in Africa.

Mercer Acquires GRS




 Mercer Acquires Pension Wind-Up Business

Mercer announced in August 2013 a definitive agreement to acquire the pension wind-up business of PwC in Canada. Upon the closing of the transaction, the team of PwC professionals joined Mercer’s own specialists in the pension wind-up business.

Pension Wind-Up Acquisition




 Canadian Surveys, Consulting Services Join Mercer

Mercer announced in February 2013 that it had acquired the salary survey database, client relationships and consulting services of Hall Consulting Limited (HCL), a leading provider of expertise and information services for the mining sector in North America. HCL’s CoopersMining Industry Salary Surveys have been the hallmark of salary survey initiatives dedicated to mining industry for many years.

Mercer Acquires Canadian firm




 Mercer Joins Forces With Washington Medicaid Firm2012

Mercer announced acquired Alicia Smith & Associates, a nationally-known Medicaid policy consulting firm based in Washington, DC, in January 2012. The transaction strengthened Mercer’s government human services consulting capabilities. In a period of cost and compliance challenges related to Medicaid, state governments are under pressure and seek the advice and expertise that Mercer and the firm of Alicia Smith will bring to the situation.

Mercer Acquires Medicaid firm




 Mercer Buys Mahoney & Associates Practices2011


Mercer announced in July 2011 that it signed a definitive agreement to acquire Ft. Lauderdale- based Mahoney & Associates’ health and welfare and defined contribution advisory practices. The transaction made Mercer the largest health and benefits broker in the Miami/Ft. Lauderdale Florida brokerage market, the ninth largest market in the US.

Mercer Buys Florida Firm




 IPA Acquired By Mercer2010


Mercer announced in July 2010 that it had acquired Innovative Process Administration, LLC (IPA), a privately owned, health and benefits administration technology provider. This acquisition played a key role in Mercer’s ongoing commitment to become the benefits administration provider of choice for health and benefit plans of all sizes and market segments.

IPA Acquired By Mercer




 ORC Worldwide Becomes Part Of Mercer


Mercer announced in June 2010 that it had agreed to acquire ORC Worldwide, to become an unparalleled provider of global human resource intelligence and further strengthen related international consulting, conference and educational services. ORC’s strong market position and reputation in the United States, particularly in the area of international assignment expertise, complements Mercer’s worldwide research capabilities and extensive global network of offices.

OCR Worldwide Joins Mercer




 Mercer And Tesi Merge 2008

In October 2008, Mercer's operations in Italy merged with Tesi, one of Italy’s premier human capital consulting firms. The combined business, known as Mercer Tesi, significantly added to our presence in Milan and Rome and enhanced our capabilities in advising domestic and international companies on human capital issues.




 New Brand For Mercer 2007

In September 2007, Mercer launched a new global brand initiative reflecting expanded business and simplified its name to “Mercer”. The company's new branding builds on its leadership in the HR consulting space while expanding the focus on its outsourcing and investments businesses..




 Mercer Acquires Höfer Vorsorge-Management

In December 2007, Mercer acquired Höfer Vorsorge-Management, one of Germany’s leading actuarial and retirement consulting firms. The acquisition gave Mercer the top market position in Germany, extending its employee base and adding offices in Berlin, Karlsruhe, Leipzig, Mülheim and Wiesbaden.