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. (Recognizing its similar yet different client base, "Mercer Investment Consulting" was simultaneously created as a separate entity.)

Mercer has grown significantly in size and service capabilities through careful recruiting efforts and a series of mergers with other top-quality consulting firms. Today, we are the world's largest consulting firm in our business.

Our values define our firm and our culture and attract people who take pride in how we work. Integrity underpins all we do and our focus is on client service.

Clients choose Mercer when they want to work in partnership with their consultant, want strategic advice as well as flawless administration and execution of their HR programs, want best-practice advice and solutions tailored to their business and environment, or need global and/or local perspectives and resources. Recruits choose Mercer when they want to work on premier clients in a highly professional environment as part of a team.

Mercer Human Resource Consulting is the global leader for trusted HR and related financial advice, products and services. In our work with clients, we make a positive impact on the world every day. We do this by enhancing the financial and retirement security, health, productivity, and employment relationships of the global workforce.

We do this through our employees who have deep and broad global and local expertise and who, together, create a world-class Mercer brand and a culture of professional excellence.

We have specialist expertise in all human resource areas, from compensation and benefits to operational effectiveness and employee performance and engagement. Using this expertise, we plan, develop, implement, administer, and measure the effectiveness of human resource programs and policies. Through our investment-related services, we help retirement plan sponsors and participants and other investors achieve satisfying long-term returns at an acceptable level of risk.