Exhibit 21.1

Exhibit 21.1 Set forth below are subsidiaries of the Company and their respective jurisdiction of ownership and percentage ownership, in each case as of December 31, 2010. Each of the named subsidiaries is not necessarily a significant subsidiary as defined in Rule 1-02(w) of Regulation S-X, and the Company has several additional subsidiaries not named below. The unnamed subsidiaries, considered in the aggregate as a single subsidiary, would not constitute a significant subsidiary at the end of the year covered by this report.

Name	Jurisdiction  of Organization		Percentage Ownership
ACE Limited		Switzerland	Publicly held
ACE Insurance (Switzerland) Limited		Switzerland	100%
ACE Reinsurance (Switzerland) Limited		Switzerland	100%
ACE Group Management and Holdings Ltd.		Bermuda	100%
ACE Bermuda Insurance Ltd.		Bermuda	100%
Paget Reinsurance International Ltd.		Bermuda	100%
Paget Reinsurance Ltd.		Bermuda	100%
ACE Capital Title Reinsurance Company (EI# 06-1434264, NAIC# 50028, NY)		USA (New York)	100%
ACE Financial Solutions International, Ltd.		Bermuda	100%
ACE Bermuda International Reinsurance (Ireland) Limited		Ireland	100%
ACE Bermuda International Insurance (Ireland) Limited		Ireland	100%
Corporate Officers & Directors Assurance Ltd. (CODA)		Bermuda	100%
Oasis Real Estate Company Ltd.		Bermuda	100%
Sovereign Risk Insurance Limited		Bermuda	100%
Sovereign Risk Insurance (Dubai) Limited		UAE (Dubai)	100%
ACE Realty Holdings Limited		Bermuda	100%
Oasis Personnel Limited		Cayman Islands	100%
Hamlin Capital Holdings Limited		Bermuda	100% Class A shares 50% Class B shares
Hamlin Capital Limited		Bermuda	100% Class A shares 30% Class B shares
ACE Global Markets Limited		England & Wales	100%
ACE Group Holdings Limited		England & Wales	100%
ACE Tarquin		England & Wales	100%
ACE Capital V Limited		England & Wales	100%

Name	Jurisdiction of Organization	Percentage Ownership
ACE Leadenhall Limited	England & Wales	100%
ACE Underwriting Agencies Limited	England & Wales	100%
ACE London Group Limited	England & Wales	100%
ACE Capital Limited	England & Wales	100%
ACE Capital III Limited	England & Wales	100%
ACE Capital IV Limited	England & Wales	100%
ACE London Holdings Limited	England & Wales	100%
ACE Capital II Limited	England & Wales	100%
ACE London Investments Limited	England & Wales	100%
ACE London Aviation Limited	England & Wales	100%
ACE London Underwriting Limited	England & Wales	100%
ACE Underwriting Services Limited	England & Wales	100%
ACE London Services Limited	England & Wales	100%
ACE Capital VI Limited	England & Wales	100%
ACE Services Limited	Cayman Islands	100%
ACE Holdings (Gibraltar) Limited	Gibraltar	100%
ACE Gibraltar Limited	Gibraltar	100%
Oasis Insurance Services Ltd.	Bermuda	100%
ACE Tempest Life Reinsurance Ltd.	Bermuda	100%
ACE Europe Life Limited	England & Wales	100%
ACE Tempest Reinsurance Ltd.	Bermuda	100%
ACE Tempest Re Escritório de Representação no Brasil Ltda.	Brazil	99.999999% 0.0000001% (ACE Tempest Life Reinsurance Ltd.)
Oasis Investments Limited	Bermuda	67% 33% (ACE Bermuda Insurance Ltd.)
Oasis D1 LLC	USA (Delaware)	100%
Oasis D2 LLC	USA (Delaware)	100%

Name	Jurisdiction of Organization	Percentage Ownership
Oasis Investments 2 Ltd.	Bermuda	67% 33% (ACE Bermuda Insurance Ltd.)
ACE Group Holdings, Inc.	USA (Delaware)	100%
ACE (CR) Holdings	England & Wales	100%
ACE Capital VII Limited	England & Wales	100%
ACE (RGB) Holdings Limited	England & Wales	100%
ACE (CIDR) Limited	England & Wales	100%
Ridge Underwriting Agencies Limited	England & Wales	100%
ACE Asset Management Inc.	USA (Delaware)	100%
ACE Life Insurance Company	USA (Connecticut)	100%
ACE INA Holdings Inc.	USA (Delaware)	80% 20% (ACE Limited)
Combined Insurance Company of America	USA (Illinois)	100%
C.I.C.A. Superannuation Nominees Pty. Ltd.	Australia	100%
Combined Insurance Company of Europe Limited	Ireland	100%
Combined Insurance Company of New Zealand Limited	New Zealand	100%
Combined International Services, Ltd.	United Kingdom	100%
Combined Life Insurance Company of Australia	Australia	100%
Combined Life Insurance Company of New York	USA (New York)	100%
Employee Benefit Communications, Inc.	USA (Florida)	100%
Superannuation Fund (CICNZ) Limited	New Zealand	100%
VOL Properties Corporation	USA (Delaware)	100%
Huatai Insurance Company of China, Limited	China	5.91% 9.64% (ACE Tempest Reinsurance Ltd.) 5.78% (ACE US Holdings, Inc.)
Huatai Life Insurance Company, Limited	China	78.8574% 20% (ACE INA Holdings Inc.)
INA Corporation	USA (Pennsylvania)	100%

Name	Jurisdiction of Organization	Percentage Ownership
INA Tax Benefits Reporting, Inc.	USA (Delaware)	100%
INA Financial Corporation	USA (Delaware)	100%
Brandywine Holdings Corporation	USA (Delaware)	100%
Cravens, Dargan & Company, Pacific Coast	USA (Delaware)	100%
Century Indemnity Company (EI# 06-6105395, NAIC #20710, PA)	USA (Pennsylvania)	100%
Century International Reinsurance Company Ltd.	Bermuda	100%
INA Holdings Corporation	USA (Delaware)	100%
INA Reinsurance Company, Ltd.	Bermuda	100%
ACE INA Properties, Inc.	USA (Delaware)	100%
Conference Facilities, Inc.	USA (Pennsylvania)	100%
ACE INA Financial Institution Solutions, Inc.	USA (Delaware)	100%
American Lenders Facilities, Inc.	USA (California)	100%
ESIS, Inc.	USA (Pennsylvania)	100%
ACE Environmental Health and Safety Consulting(Shanghai) Company Limited	China	100%
ESIS Asia Pacific Pte. Ltd.	Singapore	100%
Hygienetics Environmental Services, Inc.	USA (Delaware)	100%
Proclaim America, Inc.	USA (Texas)	51%
NewMarkets Insurance Agency, Inc.	USA (Delaware)	100%
ACE INA Excess and Surplus Insurance Services, Inc.	USA (Pennsylvania)	100%
ACE INA Excess and Surplus Insurance Services, Inc.	USA (California)	100%
ACE Financial Solutions, Inc.	USA (Delaware)	100%
ACE Risk Solutions, Inc.	USA (New York)	100%
Indemnity Insurance Company of North America (EI# 06-1016108, NAIC #43575, PA)	USA (Pennsylvania)	100%
ACE Indemnity Insurance Company EI#92-0040526, NAIC #10030, PA)	USA (Pennsylvania)	100%
ACE American Insurance Company (EI#95-2371728, NAIC# 22667, PA)	USA (Pennsylvania)	100%
Pacific Employers Insurance Company (EI#95-1077060, NAIC# 22748, PA)	USA (Pennsylvania)	100%
Illinois Union Insurance Company (EI# 36-2759195, NAIC #27960, IL)	USA (Illinois)	100%
Rain and Hail Insurance Service Incorporated	USA (Iowa)	100%
Agri General Insurance Company	USA (Iowa)	100%
Rain and Hail L.L.C.	USA (Iowa)	99%
Agri General Insurance Service, Inc	USA (Iowa)	100%
Rain and Hail Insurance Service International, Inc.	USA (Iowa)	100%
Rain and Hail Insurance Corporation	(Canada)	100%
Rain and Hail Insurance Service, Ltd.	(Canada)	100%
Rain and Hail do Brasil, Ltda,	(Brazil)	100%
Rain and Hail Insurance Service de Mexico, S.A. de C.V.	(Mexico)	100%
Rain and Hail Financial, Inc	USA (Iowa)	100%

Name	Jurisdiction of Organization	Percentage Ownership
INAMAR Insurance Underwriting Agency, Inc.	USA (New Jersey)	100%
INAMAR Insurance Underwriting Agency, Inc. of Texas	USA (Texas)	100%
Insurance Company of North America (EI# 23-0723970, NAIC #22713, PA)	USA (Pennsylvania)	100%
Bankers Standard Insurance Company (EI# 59-1320184, NAIC #18279, PA)	USA (Pennsylvania)	100%
Bankers Standard Fire and Marine Company (EI#75-6014863, NAIC #20591, PA)	USA (Pennsylvania)	100%
ACE Property and Casualty Insurance Company (EI# 06-0237820, NAIC, #20699, PA)	USA (Pennsylvania)	100%
ACE Fire Underwriters Insurance Company (EI# 06-6032187, NAIC #20702, PA)	USA (Pennsylvania)	100%
Atlantic Employers Insurance Company (EI# 23-2173820, NAIC #38938, NJ)	USA (New Jersey)	100%
ACE Insurance Company of the Midwest (EI# 06-0884361, NAIC #26417, IN)	USA (Indiana)	100%
ACE Tempest Re USA, LLC	USA (Connecticut)	100%
ACE Structured Products, Inc.	USA (Delaware)	100%
Recovery Services International, Inc.	USA (Delaware)	100%
ACE INA International Holdings, Ltd.	USA (Delaware)	100%
Jerneh Insurance Berhad	Malaysia	100%
INACOMB S.A. de C.V.	Mexico	99.998% 0.002% (AFIA Finance Corporation)
ACE Australia Holdings Pty Limited	Australia	100%
ACE Insurance Limited	Australia	100%
PT. ACE Life Assurance	Indonesia	95.38%
ACE Life Insurance Company Limited	Vietnam	100%
ACE Insurance Company Limited	Vietnam	100%
ACE Seguradora S.A.	Brazil	99.99% 0.01% (AFIA Finance Corporation)
ACE Participacoes Ltda.	Brazil	99% 1% (AFIA Finance Corporation)
ACE Resseguardora S.A.	Brazil	99.99% 0.01% (ACE INA International Holdings, Ltd.)
ESIS Canada Inc.	Canada	100%
Servicios ACEINA, S.A. de C.V.	Mexico	99.998% one share (AFIA Finance Corporation)
ACE Seguros S.A.	Argentina	94.62% 4.73% (AFIA Finance Corporation)
ACE INA International Holdings Ltd. Agencia Chile	Chile	100%
ACE Seguros de Vida S.A.	Chile	99.5% 0.5% (AFIA Finance Corporation Agencia en Chile)
Ventas Personales Limitada	Chile	99% 1% (AFIA Finance Corporation Agencia en Chile)
ACE INA Overseas Holdings, Inc.	USA (Delaware)	100%

Name	Jurisdiction of Organization	Percentage Ownership
ACE European Holdings Limited	England & Wales	100%
ACE European Group Limited	England & Wales	30.8723% 69.1277% (ACE Insurance S.A.- N.V.)
ACE European Holdings No 2 Limited	England & Wales	100%
ACE Insurance Management (DIFC) Limited	Dubai	100%
CJSC ACE Insurance Company	Russia	100%
ACE Insurance S.A.-N.V.	Belgium	99.9492% 0.0507% (ACE INA International Holdings Ltd.)
ACE European Group Limited	England & Wales	69.1277% 30.8723% (ACE European Holdings Limited)
ACE Pension Trustee Limited	England & Wales	100%
CJSC ACE Life Insurance	Russia	100%
ACE Seguradora S.A.	Macau	99.94%
ACE Holdings Limited	Cayman Islands	100%
ACE Insurance Company Egypt S.A.E.	Egypt	96.89% 0.88% (ACE INA Services UK Ltd.) 0.88% (ACE European Holdings Limited)
ACE Life Insurance Company S.A.E.	Egypt	98.34% 0.98% (ACE Holdings Limited) 0.68% (AFIA Finance Corporation)
ACE Synergy Insurance Berhad	Malaysia	51%
ACE Seguros S.A.	Chile	78.33% (AIIH) 12.24% (AFIA Finance Corporation, Agencia en Chile) 9.1% (AFIA Finance Corp. Chile Limitada)
ACE Seguros S.A.	Colombia	99.958%
ACE Seguros S.A.	Ecuador	100%
ACE Seguros S.A.	Mexico	99.9%
ACE Seguros S.A.	Panama	100%
ACE Seguros S.A.	Peru	99.99% 0.01% (AFIA Finance Corporation)

Name	Jurisdiction of Organization	Percentage Ownership
ACE Life Assurance Co. Ltd.	Thailand	75% 25% (Oriental Equity Holdings)
Eksupsiri Company Limited	Thailand	50.99% 49% (AIIH)
ACE Insurance Limited	South Africa	100%
ACE Insurance Limited	New Zealand	100%
ACE International Management Corporation	Pennsylvania	100%
Cover Direct, Inc.	USA (Delaware)	100%
ACE INA G.B. Holdings, Ltd	USA (Delaware)	100%
ACE INA Services U.K. Limited	England & Wales	100%
Century Inversiones, S.A.	Panama	100%
ACE Arabia Insurance Company Limited B.S.C. (C)	Bahrain	50%
ACE Insurance Limited	Pakistan	100%
ACE INA Overseas Insurance Company Ltd.	Bermuda	100%
ACE Canada Holdings, Inc.	USA (Delaware)	100%
INACAN Holdings Ltd.	Canada (Ontario)	100%
ACE INA Insurance	Canada	100%
ACE INA Life Insurance	Canada	100%
ACE Tempest Re Canada Inc.	Canada (Quebec)	100%
ACE Insurance Limited	Singapore	100%
ACE Insurance	Japan	100%
ACE Chintai SSI	Japan	100%
ACE Songai Service Kabushikigaisha	Japan	100%
ACE Marketing Group C.A.	Venezuela	100%
ACE Insurance Company (EI# 66-0437305, NAIC #30953, PR)	Puerto Rico	100%
ACE Insurance Agency, Inc.	Puerto Rico	100%
ACE Insurance Limited	Hong Kong	100%
ACE Alternative Risk Ltd. (formerly ACE Risk Management International Ltd.)	Bermuda	100%
DELPANAMA S.A.	Panama	100%
INAMEX S.A.	Mexico	100%
Oriental Equity Holdings Limited	British Virgin Islands	100%
AFIA Finance Corporation	USA (Delaware)	100%
AFIA Finance Corporation Agencia en Chile	Chile	100%
AFIA Venezolana C.A.	Venezuela	100%
ACE ICNA Italy Societa a Responsabilita Limitata	Italy	99.7% 0.3% (AIIH)
Siam Liberty Company Limited	Thailand	49% (AFC) 50.70% (Nam EK)

Name	Jurisdiction of Organization	Percentage Ownership
ACE Servicios S.A.	Argentina	100%
AFIA Finance Corp. Chile Limitada	Chile	98% 2% (AIIH)
Pembroke Reinsurance, Inc.	USA (Delaware)	100%
PT. ACE INA Insurance	Indonesia	97.36% 2.64% (PT. Adi Citra Mandiri)
RIYAD Insurance Co. Ltd.	Bermuda	80%
ACE Asia Pacific Services Pte. Ltd. (formerly Safire Private Limited)	Singapore	100%
ACE Asia Pacific Services Sdn Bhd	Malaysia	100%
AFIA (INA) Corporation, Limited	USA (Delaware)	100%
AFIA	Unincorporated Association	60%
AFIA (ACE) Corporation, Limited	USA (Delaware)	100%
INAVEN, C.A. “Venezuela”	Venezuela	100%
ACE US Holdings, Inc.	USA (Delaware)	100%
ASI Administrative Services Inc.	Canada (Yukon)	100%
Rhea International Marketing (L), Inc.	Malaysia	60%
Westchester Fire Insurance Company (EI# 13-5481330, NAIC# 21121, NY)	USA (New York)	100%
Westchester Surplus Lines Insurance Company (EI# 58-2139927, NAIC #10172, GA)	USA (Georgia)	100%
Westchester Specialty Services, Inc.	USA (Florida)	100%
Westchester Specialty Insurance Services, Inc.	USA (Nevada)	100%