Europäische Unternehmenseinheiten 

Mercer Unternehmenseinheit Land 
Mercer (Austria) GmbH Austria
Mercer (Belgium) SA-NV Belgium
Mercer (Danmark) A/S Denmark
Mercer (Finland) OY Finland
Mercer (France) SAS France
Mercer Consulting (France) SAS
Mercer Deutschland GmbH Germany
Mercer Pensionsfonds AG
Mercer Treuhand GmbH
Neuburger Noble Lowndes GmbH
Irish Pensions Trust Limited Ireland
Matheson
Mercer (Ireland) Limited
Mercer Financial Services Limited
Mercer Global Investments Europe Limited
Mercer Global Investments Management Limited
Mercer Investment Consulting Limited
Mercer Ireland Holdings Limited
Mercer Master Trustees Limited
Mercer Trustees Limited
Mercer Italia Srl Socio Unico Italy
Mercer (Nederland) B.V. Netherlands
Mercer Consulting B.V.
Mercer (Norge) AS Norway
Mercer (Polska) Sp.z o.o. Poland
Mercer (Portugal) Lda Portugal
Mercer Career, Unipessoal Lda
Mercer Employee Benefits - Medicacao de Seguros Unipessoal Lda.
Thomsons Online Benefits SRL Romania
Mercer Consulting, S.L.U. Spain
Mercer Outsourcing, S.L.U.
Mercer (Sweden) AB Sweden
Pensionsservice Benefit Network Sverige AB
William M. Mercer AB
Mercer Private Markets Advisers (US) AG Switzerland
Mercer Private Markets AG
Mercer Switzerland Inc.
Promerit Schweiz AG
Mercer Danismanlik Anonim Sirketi Turkey
Mercer Sigorta Brokerligi Anonim Sirketi
SCM PE II Scotland GP Ltd United Kingdom
Jelf Financial Planning Limited
Kepler Associates Limited
Mercer Africa Limited
Mercer Consulting Limited
Mercer Employee Benefits Limited
Mercer Limited
Mercer Technology Acquisitions Limited
Online Benefits Limited
Sedgwick Financial Services Limited
Sedgwick Noble Lowndes (UK) Limited
Sedgwick Noble Lowndes Group Limited
Sedgwick Noble Lowndes Limited
TBX Solutions Limited
The Benefit Express Holdings Limited
The Benefit Express Limited
The Positive Ageing Company Limited
Thomsons Online Benefits Limited
PFT Limited
Mercer Trustees Limited