Towers Watson & Co. 10-Q 2010 Q1 Quarterly report

Exhibit 21

Towers Watson & Co.

SUBSIDIARIES

		Name(s) under
		which such
	JURISDICTION OF	subsidiary does
	INCORPORATION/	business (if
SUBSIDIARY NAME	ORGANIZATION	different)(a)
Towers Watson Argentina S.A.	Argentina
Watson Wyatt Australia Pty Ltd	Australia
Wycomp Pty Ltd	Australia
Watson Wyatt Superannuation Pty Ltd	Australia
Classic Solutions Australia Pty Limited	Australia
Classic Solutions Holding Pty Limited	Australia
Classic Solutions Pty. Limited	Australia
International Survey Research Pty Ltd	Australia
Towers Watson Austria GmbH	Austria
Watson Wyatt Insurance and Financial Services SA	Belgium
Watson Wyatt NV	Belgium
Tillinghast, Nelson & Warren (Bermuda), Ltd.	Bermuda
Towers Watson Assessoria Empresarial Ltda	Brazil
Towers Watson Corretora e Consultoria de Seguros Ltda.	Brazil
Towers Watson Consultoria Ltda.	Brazil
Towers Watson ULC	Canada
Towers Perrin Canada ULC	Canada
Towers Watson Canada Inc.	Canada
Towers Perrin Risk Capital (Canada) Inc.	Canada
TP Financial Advisers Inc.	Canada
Towers Watson Chile S.A.	Chile
Corredores de Seguros Towers Watson Limitada	Chile
Watson Wyatt Consultancy (Shanghai) Ltd	China
Watson Wyatt Consultancy (Shenzhen) Ltd	China
Towers Perrin (Shenzhen) Consulting Co., Ltd.	China

73

		Name(s) under
		which such
	JURISDICTION OF	subsidiary does
	INCORPORATION/	business (if
SUBSIDIARY NAME	ORGANIZATION	different)(a)
Towers Watson Consultores Colombia S.A.	Colombia
Watson Wyatt SARL	France
ISR International Survey Research SARL	France
Towers Watson (Düsseldorf) GmbH	Germany
Watson Wyatt Insurance Consulting GmbH	Germany
Towers Watson Deutschland GmbH	Germany
Towers Watson Versicherungsservice GmbH	Germany
Towers Watson Verlag GmbH	Germany
Heissmann Consultants GmbH	Germany
PM&S Pensions-managment und Sicherungs-Treuhand AG	Germany
Rauser Towers Perrin GmbH Pensions Service Center	Germany
ISR International Survey Research GmbH	Germany
Rauser Towers Perrin AG	Germany
D.C. Vorsorge Trust GmbH	Germany
Zeitinvest-Service GmbH	Germany
Towers Perrin Share Plan Services (Guernsey) Limited	Guernsey
Towers Watson GmbH	Germany
Towers Watson Holding GmbH	Germany
Watson Wyatt Insurance Consulting Ltd	Hong Kong
Watson Wyatt Hong Kong Limited	Hong Kong
Watson Wyatt Investment Consulting Hong Kong Limited	Hong Kong
Watson Wyatt Kft	Hungary
Watson Wyatt Insurance Consulting Private Ltd	India
Watson Wyatt India Private Limited	India
PT Watson Wyatt Purbajaga	Indonesia
PT Watson Wyatt Indonesia	Indonesia
Watson Wyatt (Ireland) Limited	Ireland
Watson Wyatt Consulting Limited	Ireland
BCI Trustees Limited	Ireland
Watson Wyatt Italia Srl	Italy
Watson Wyatt Insurance Consulting KK	Japan

74

		Name(s) under
		which such
	JURISDICTION OF	subsidiary does
	INCORPORATION/	business (if
SUBSIDIARY NAME	ORGANIZATION	different)(a)
Watson Wyatt KK	Japan
Watson Wyatt Luxembourg SARL	Luxembourg
Towers Perrin Luxembourg Holdings S.A.R.L.	Luxembourg
Watson Wyatt (Malaysia) Sdn Bhd	Malaysia
International Survey Research Sdn. Bhd.	Malaysia
Towers Perrin (Malaysia) Sdn. Bhd.	Malaysia
Watson Wyatt Holdings (Mauritius) Limited	Mauritius
Towers Watson Consultores Mexico S.A. de C.V.	Mexico
Towers Watson de Mexico, SA de CV	Mexico
Watson Wyatt European Region BV	Netherlands
Towers Watson Risk Consulting BV	Netherlands
Towers Watson BV	Netherlands
Towers Perrin Leasing B.V.	Netherland
Towers Watson Netherlands BV	Netherland
Watson Wyatt Philippines, Inc.	Philippines
Watson Wyatt (Portugal) Unipessoal Limitada	Portugal
Watson Wyatt Puerto Rico, Inc.	Puerto Rico
Watson Wyatt, Limited Liability Company	Russia
Watson Wyatt Insurance Consulting Pte Ltd	Singapore
Watson Wyatt Singapore Pte Ltd	Singapore
International Survey Research (AMEA) Pte Ltd	Singapore
Watson Wyatt Insurance Consulting (Spain) SA	Spain
Watson Wyatt de Espana SA	Spain
Watson Wyatt AB	Sweden
Watson Wyatt AG	Switzerland
Watson Wyatt (Thailand) Limited	Thailand
Watson Wyatt Middle East (L.L.C.)	United Arab Emirates (Dubai)
Towers Watson (Dubai) Limited	United Arab Emirates (DIFC, Dubai)
Towers Watson Limited	United Kingdom
Watson Wyatt Holdings Limited	United Kingdom
Watson Wyatt Trustees Limited	United Kingdom

75

		Name(s) under
		which such
	JURISDICTION OF	subsidiary does
	INCORPORATION/	business (if
SUBSIDIARY NAME	ORGANIZATION	different)(a)
The Wyatt Company Holdings Limited	United Kingdom
Watson Wyatt Services Limited	United Kingdom
Watson Wyatt Pretium Limited	United Kingdom
Watson Wyatt Holdings (Europe) Limited	United Kingdom
Watson Wyatt International Limited	United Kingdom
Watson Wyatt Insurance & Financial Services Consulting Holdings Limited	United Kingdom
Watson Wyatt European Region Limited	United Kingdom
Watson Wyatt European Investment Holdings Limited	United Kingdom
Watsons Pensioneer Trustees Limited	United Kingdom
Watson Wyatt (UK) Acquisitions 1 Limited	United Kingdom
PCL Limited	United Kingdom
PCL 1991 Limited	United Kingdom
Wyatt Trustee Limited	United Kingdom
The Wyatt Company (UK) Limited	United Kingdom
Wyatt Pension Plan Trustee Limited	United Kingdom
Wyatt Financial Services Limited	United Kingdom
Watsons International Limited	United Kingdom
RWS Trustee Limited	United Kingdom
Watson Wyatt Healthcare Trustees Limited	United Kingdom
Watson Wyatt (UK) Acquisitions 2 Limited	United Kingdom
Watson Wyatt European Investment Limited Partnership	United Kingdom
Classic Solutions UK Limited (formerly known as Brenmaster Limited)	United Kingdom
Clayton Group Limited	United Kingdom
Towers Watson (Re)Insurance Brokers Ltd.	United Kingdom
Denis M. Clayton (Holdings) Limited	United Kingdom
ISR L1 Limited	United Kingdom
ISR L2 Limited	United Kingdom
Towers Watson Capital Markets Limited	United Kingdom
Towers Perrin Europe Limited	United Kingdom
Towers Perrin Limited	United Kingdom

76

		Name(s) under
		which such
	JURISDICTION OF	subsidiary does
	INCORPORATION/	business (if
SUBSIDIARY NAME	ORGANIZATION	different)(a)
Towers Perrin Share Plan Services Limited	United Kingdom
Towers Perrin UK Holdings Limited	United Kingdom
Towers Watson UK Limited	United Kingdom
Towers Perrin (UK) Trustee Company Limited	United Kingdom
Towers Watson Delaware Inc.	United States- Delaware
Towers Watson Data Services, Inc.	United States- Delaware
Towers Watson Investment Services, Inc.	United States- Delaware
Watson Wyatt Insurance Consulting, Inc.	United States- Delaware
Towers Watson Risk Consulting, Inc.	United States- Delaware
Watson Wyatt Canadian Holdings, Inc.	United States- Delaware
Watson Wyatt European Investment Holdings, Inc.	United States- Delaware
Watson Wyatt European Investment Holdings 1, LLC	United States- Delaware
Watson Wyatt European Investment Holdings 2, LLC	United States- Delaware
Towers Watson Delaware Holdings Inc.	United States- Delaware
Towers Watson Middle East Holdings LLC	United States-Delaware
VIPitech LLC	United States- Delaware
Towers Perrin Capital Corp.	United States- Delaware
Towers Watson Capital Markets Inc.	United States- Delaware
TPF&C Delaware LLC	United States- Delaware
TPF&C Holdings, Inc.	United States- Delaware
TP Finance Co.	United States- Delaware
TP Property Financing LLC	United States- Delaware
Watson Wyatt International, Inc.	United States- Nevada
TPF&C International Inc.	United States- Pennsylvania
Towers Watson Pennsylvania Inc.	United States- Pennsylvania
Professional Consultants Insurance Company, Inc.	United States - Vermont
Stone Mountain Insurance Company	United States-Vermont
Towers Watson Uruguay S.A.	Uruguay
Watson Wyatt Vietnam Company Limited	Vietnam

Subsidiaries which are trading entities trade under their own name or under the trading name of Towers Watson.

77