QuickLinks -- Click here to rapidly navigate through this document

American International Group, Inc., and Subsidiaries

Exhibit 21

Subsidiaries of Registrant

As of December 31, 2010					Jurisdiction of Incorporation or Organization	Percentage of Voting Securities held by Immediate Parent(1)
American International Group, Inc.(2)					Delaware
	AIA Aurora LLC				Delaware		100
	AIG Capital Corporation				Delaware		100
		AIG Consumer Finance Group, Inc.			Delaware		100
			AIG Credit S.A.		Poland		100
		AIG Credit Corp.			Delaware		100
			A.I. Credit Consumer Discount Company		Pennsylvania		100
			A.I. Credit Corp.		New Hampshire		100
			AICCO, Inc.		Delaware		100
			AICCO, Inc.		California		100
			AIG Credit Corp. of Canada		Canada		100
			Imperial Premium Funding, Inc.		Delaware		100
		AIG Equipment Finance Holdings, Inc.			Delaware		100
			AIG Commercial Equipment Finance, Inc.		Delaware		100
				AIG Commercial Equipment Finance Company, Canada	Canada		100
			AIG Rail Services, Inc.*		Delaware		100
		AIG Finance Holdings, Inc.			New York		100
		AIG Global Asset Management Holdings Corp.			Delaware		100
			AIG Asset Management (Asia) Limited		Hong Kong		100
			AIG Asset Management (U.S.), LLC		Delaware		100
			AIG Asset Management Services, Inc.		Delaware		100
			AIG Global Real Estate Investment Corp.		Delaware		100
			AIG Securities Lending Corp.		Delaware		100
		International Lease Finance Corporation			California		100
	AIG Federal Savings Bank				The United States		100
	AIG Financial Advisor Services, Inc.				Delaware		100
		AIG Global Investment (Luxembourg) S.A.			Luxembourg		100
	AIG Financial Products Corp.				Delaware		100
		AIG-FP Matched Funding Corp.			Delaware		100
		AIG Matched Funding Corp.			Delaware		100
		Banque AIG S.A.			France		90	(3)
	AIG Funding, Inc.				Delaware		100
	AIG Global Services, Inc.				New Hampshire		100
	AIG Life Holdings (International) LLC				Delaware		100
		AIG Star Life Insurance Co., Ltd.			Japan		100	(4)
		American International Reinsurance Company, Ltd.			Bermuda		100
			Chartis Seguros Mexico, S.A. de C.V.		Mexico		100
			AIG Edison Life Insurance Company		Japan		73.22	(5)
		Nan Shan Life Insurance Company, Limited			Taiwan		97.57
	AIG Life Insurance Company (Switzerland) Ltd.				Switzerland		100
	AIG Lotus LLC				Delaware		100
	AIG Markets, Inc.				Delaware		100
	AIG Trading Group Inc.				Delaware		100
		AIG International Inc.			Delaware		100
	AIUH LLC				Delaware		100
		Chartis Inc.			Delaware		100
			Chartis Global Claims Services, Inc.		Delaware		100

AIG 2010 Form 10-K            401

American International Group, Inc., and Subsidiaries

As of December 31, 2010					Jurisdiction of Incorporation or Organization	Percentage of Voting Securities held by Immediate Parent(1)
		Chartis Claims, Inc.			Delaware		100
			Health Direct, Inc.		Delaware		100
	Chartis Global Services, Inc.				Delaware		100
	Chartis International, LLC				Delaware		100
		AIG Global Trade & Political Risk Insurance Company			New Jersey		100
		AIU Insurance Company			New York		100
			Chartis Insurance Company China Limited		China		100
			Chartis Taiwan Insurance Co., Ltd.		Taiwan		100
		AIU Insurance Company (Trinidad & Tobago) Limited			Trinidad & Tobago		100
		Chartis Africa Holdings, Inc.			Delaware		100
			Chartis Kenya Insurance Company Limited		Kenya		66.67
		Chartis Asia Pacific Pte. Ltd.			Singapore		100
			Chartis Singapore Insurance Pte. Ltd.		Singapore		100
				Chartis Australia Insurance Limited	Australia		100
				Chartis New Zealand Limited	New Zealand		100
		Chartis Central Europe & CIS Insurance Holdings Corporation			Delaware		100
			UBB-Chartis Insurance Company AD		Bulgaria		40
		Chartis European Insurance Investments Inc.			England		100
		Chartis Far East Holdings Kabushiki Kaisha			Japan		100
			JI Accident & Fire Insurance Company, Ltd.		Japan		50
		Chartis Ukraine Insurance Company CJSC			Ukraine		94.24	(6)
		Chartis Kazakhstan Insurance Company			Kazakhstan		100
		Chartis Latin America Investments, LLC			Delaware		100
		Chartis Memsa Holdings, Inc.			Delaware		100
			CHARTIS Investment Holdings (Private) Limited		Sri Lanka		100
				CHARTIS Insurance Limited	Sri Lanka		100
			Chartis Iraq, Inc.		Delaware		100
			CHARTIS Lebanon S.A.L.		Lebanon		100
			Chartis Libya, Inc.		Delaware		100
			Tata AIG General Insurance Company Limited		India		26
		Chartis Overseas Limited			Bermuda		100
			American International Underwriters del Ecuador S.A.		Ecuador		100
				AIG Metropolitana Compania de Seguros y Reaseguros S.A.	Ecuador		32.06	(7)
			Arabian American Insurance Company (Bahrain) E.C.		Bahrain		100
			Chartis Chile Compania de Seguros Generales S.A.		Chile		100
			CHARTIS Cyprus Ltd		Cyprus		100
			Chartis Global Management Company Limited		Bermuda		100
			La Meridional Compania Argentina de Seguros S.A.		Argentina		95	(8)
			Chartis I.I. – Puerto Rico		Puerto Rico		100
			Chartis Insurance (Guernsey) PCC Limited		Guernsey		100
			Chartis Insurance (Thailand) Company Limited		Thailand		100
			Chartis Insurance Company – Puerto Rico		Puerto Rico		100
			Chartis Seguros Colombia S.A.		Colombia		97.3	(9)
			Chartis Insurance Hong Kong Limited		Hong Kong		100
			Chartis Luxembourg Financing Limited		England		100
			CHARTIS MEMSA Insurance Company Limited		United Arab Emirates		100
				AIG Pakistan Insurance Company Limited	Pakistan		100
			Chartis Seguros Brasil S.A.		Brazil		100
			Chartis Seguros Guatemala, S.A.		Guatemala		100
			Chartis Seguros Uruguay S.A.		Uruguay		100

402            AIG 2010 Form 10-K

American International Group, Inc., and Subsidiaries

As of December 31, 2010									Jurisdiction of Incorporation or Organization	Percentage of Voting Securities held by Immediate Parent(1)
			CHARTIS Sigorta A.S.						Turkey		100
			CHARTIS Takaful-Enaya B.S.C. (c)						Bahrain		100
			Chartis Uganda Insurance Company Limited						Uganda		100
			Chartis Vietnam Insurance Company Limited						Vietnam		100
			Johannesburg Insurance Holdings (Proprietary) Limited						South Africa		100
				Chartis Life South Africa Limited					South Africa		100
				Chartis South Africa Limited					South Africa		100
			Underwriters Adjustment Company, Inc. Panama						Panama		100
			Hellas Insurance Co. S.A.						Greece		50
			Inversiones Segucasai, C.A.						Venezuela		50
				C.A. de Seguros American International					Venezuela		93.78
			AIG Israel Insurance Company Ltd.						Israel		50.01
			Chartis Uzbekistan Insurance Company LLC						Uzbekistan		51
			PT Chartis Insurance Indonesia						Indonesia		61.208	(10)
			Chartis Overseas Association						Bermuda		67	(11)
				Chartis Malaysia Insurance Berhad					Malaysia		100
				Chartis North America, Inc.					New York		100
				Chartis Europe Holdings Limited					Ireland		64.909	(12)
					Chartis Europe, S.A.				France		86.33	(13)
						AIG Germany Holding GmbH			Germany		100
						Chartis Romania Insurance Company S.A.			Romania		99.99
						CJSC Chartis Insurance Company			Russia		100
					Chartis Insurance Ireland Limited				Ireland		100
					Chartis UK Holdings Limited				England		100
						Chartis UK Financing Limited			England		100
							Chartis UK Sub Holdings Limited		England		100
								Chartis Insurance UK Limited	England		100
			Chartis Philippines Insurance Inc.						Philippines		91	(14)
			Chartis Seguros, El Salvador, Sociedad Anonima						El Salvador		99.99	(15)
				Chartis Vida, Sociedad Anonima, Seguros de Personas					El Salvador		100
		Chartis Technology and Operations Management Corporation							New York		100
		Travel Guard Worldwide, Inc.							Wisconsin		100
			AIG Travel Assist, Inc.						Delaware		100
				Travel Guard Americas LLC					Wisconsin		100
				Travel Guard Asia Pacific Pte. Ltd.					Singapore		100
				Travel Guard EMEA Limited					England		100
			AIG Travel Insurance Agency, Inc.						Texas		100
			Livetravel, Inc.						Wisconsin		100
			Travel Guard Group Canada, Inc.						Canada		100
			Travel Guard Group, Inc.						Delaware		100
			WINGS International (World Insurance Network Global System) SA						France		100
		Chartis Azerbaijan Insurance Company Open Joint Stock Company							Azerbaijan		49	(16)
		Global Information Services Private Limited							India		50
		Chartis Egypt Insurance Company S.A.E.							Egypt		95.02
	Chartis U.S., Inc.								Delaware		100
		American Home Assurance Company							New York		100
			American International Realty Corp.						Delaware		31.5	(17)
			Chartis Non-Life Holding Company (Japan), Inc.						Delaware		100
				The Fuji Fire & Marine Insurance Company, Limited					Japan		38.62	(18)
					American Fuji Fire & Marine Insurance Company				Illinois		100

AIG 2010 Form 10-K            403

American International Group, Inc., and Subsidiaries

As of December 31, 2010							Jurisdiction of Incorporation or Organization	Percentage of Voting Securities held by Immediate Parent(1)
						Fuji International Insurance Company Limited	United Kingdom		100
						Fuji Life Insurance Company Ltd.	Japan		100
				Pine Street Real Estate Holdings Corp.			New Hampshire		31.47	(19)
			Chartis Aerospace Insurance Services, Inc.				Georgia		100
			Chartis Insurance Agency, Inc.				New Jersey		100
			Chartis Insurance Company of Canada				Canada		100
			Chartis Property Casualty Company				Pennsylvania		100
			Commerce and Industry Insurance Company				New York		100
				AIG Polska Towarzystwo Ubezpiecen S.A.			Poland		99.25
			Landmark Insurance Company				California		100
			National Union Fire Insurance Company of Pittsburgh, Pa.				Pennsylvania		100
				Chartis Select Insurance Company			Delaware		100
					Chartis Excess Limited		Ireland		100
				Chartis Specialty Insurance Company			Illinois		70	(20)
				Lexington Insurance Company			Delaware		70	(21)
				Mt. Mansfield Company, Inc.			Vermont		100
				National Union Fire Insurance Company of Vermont			Vermont		100
				United Guaranty Corporation			North Carolina		45.88	(22)
					AIG Centre Capital Group, Inc.		North Carolina		100
					AIG United Guaranty Agenzia di Assicurazione S.R.L.		Italy		100
					AIG United Guaranty Insurance (Asia) Limited		Hong Kong		100
					AIG United Guaranty Mexico, S.A.		Mexico		99.999	(23)
					AIG United Guaranty Re Limited		Ireland		100
					United Guaranty Insurance Company		North Carolina		100
					United Guaranty Mortgage Insurance Company		North Carolina		100
					United Guaranty Mortgage Insurance Company of North Carolina		North Carolina		100
					United Guaranty Partners Insurance Company		Vermont		100
					United Guaranty Residential Insurance Company of North Carolina		North Carolina		100
					United Guaranty Services, Inc.		North Carolina		100
					United Guaranty Residential Insurance Company		North Carolina		75.03	(24)
						United Guaranty Commercial Insurance Company of North Carolina	North Carolina		100
						United Guaranty Credit Insurance Company	North Carolina		100
						United Guaranty Mortgage Indemnity Company	North Carolina		100
			New Hampshire Insurance Company				Pennsylvania		100
				Chartis Casualty Company			Pennsylvania		100
				Granite State Insurance Company			Pennsylvania		100
				Illinois National Insurance Co.			Illinois		100
				Morefar Marketing, Inc.			Delaware		100
				New Hampshire Insurance Services, Inc.			New Hampshire		100
			Risk Specialists Companies, Inc.				Delaware		100
				Risk Specialists Companies Insurance Agency, Inc.			Massachusetts		100
					Agency Management Corporation		Louisiana		100
						The Gulf Agency, Inc.	Alabama		100
					Design Professionals Association Risk Purchasing Group, Inc.		Illinois		100
			The Insurance Company of the State of Pennsylvania				Pennsylvania		100
	ALICO Holdings LLC						Delaware		100
	American Security Life Insurance Company, Ltd.						Liechtenstein		100
	MG Reinsurance Limited						Vermont		100
	SAFG Retirement Services, Inc.						Delaware		100
		SunAmerica Life Insurance Company					Arizona		100

404            AIG 2010 Form 10-K

American International Group, Inc., and Subsidiaries

As of December 31, 2010							Jurisdiction of Incorporation or Organization	Percentage of Voting Securities held by Immediate Parent(1)
			SunAmerica Annuity and Life Assurance Company				Arizona		100
				SunAmerica Asset Management Corp.			Delaware		100
					SunAmerica Capital Services, Inc.		Delaware		100
			SunAmerica Investments, Inc.				Georgia		100
				AIG Advisor Group, Inc.			Maryland		100
					SagePoint Financial, Inc.		Delaware		100
					Financial Service Corporation		Delaware		100
						FSC Securities Corporation	Delaware		100
					Royal Alliance Associates, Inc.		Delaware		100
				SunAmerica Affordable Housing Partners, Inc.			California		100
				SunAmerica (Cayman) Co., Ltd.			Cayman Islands		100
				SunAmerica Retirement Markets, Inc.			Maryland		100
			First SunAmerica Life Insurance Company				New York		100
	SunAmerica Financial Group, Inc.						Texas		100
		AGC Life Insurance Company					Missouri		100
			AIG Life of Bermuda, Ltd.				Bermuda		100
			American General Life Insurance Company of Delaware				Delaware		100
			American General Life and Accident Insurance Company				Tennessee		100
				American General Bancassurance Services, Inc.			Illinois		100
				American General Property Insurance Company			Tennessee		100
			American General Life Insurance Company				Texas		100
				AIG Enterprise Services, LLC			Delaware		100
				American General Annuity Service Corporation			Texas		100
				American General Life Companies, LLC			Delaware		100
				The Variable Annuity Life Insurance Company			Texas		100
					Valic Retirement Services Company		Texas		100
			The United States Life Insurance Company in the City of New York				New York		100
			Western National Life Insurance Company				Texas		100
		American General Assurance Company					Illinois		100
			American General Indemnity Company				Illinois		100
		American General Investment Management Corporation					Delaware		100
		American General Realty Investment Corporation					Texas		100
		Knickerbocker Corporation					Texas		100

(*)

In connection with AIG's asset disposition plan, through February 24, 2011, AIG has entered into agreements to sell this company.

⁽¹⁾

Percentages include directors' qualifying shares.

⁽²⁾

Substantially all subsidiaries listed are consolidated in the accompanying financial statements. Certain subsidiaries have been omitted from the tabulation. The omitted subsidiaries, when considered in the aggregate, do not constitute a significant subsidiary.

⁽³⁾

Also owned 10 percent by AIG Matched Funding Corp.

⁽⁴⁾

The entire 100% AIG interest in AIG Star Life Insurance Company, Limited was sold on February 1, 2011.

⁽⁵⁾

Also owned 18.64 percent by American International Group, Inc. and 8.14 percent by a subsidiary of AIG Financial Assurance Japan K.K.

The entire 100% AIG interest in AIG Edison Life Insurance Company was sold on February 1, 2011.

⁽⁶⁾

Also owned 5.74 percent by Steppe Securities, L.L.C. and 0.02 percent by Chartis Central Europe & CIS Insurance Holdings Corporation.

⁽⁷⁾

Also owned 19.72 percent by Chartis Overseas Association.

⁽⁸⁾

Also owned 4.99 percent by Chartis Global Management Company Limited.

⁽⁹⁾

Also owned 2.7 percent by Chartis Insurance Company – Puerto Rico.

⁽¹⁰⁾

Also owned 38.792 percent by PT. Tiara Citra Cemerlan.

AIG 2010 Form 10-K            405

American International Group, Inc., and Subsidiaries

⁽¹¹⁾

Also owned 12 percent by New Hampshire Insurance Company, 11 percent by National Union Fire Insurance Company of Pittsburgh, Pa., and 10 percent by American Home Assurance Company.

⁽¹²⁾

Also owned 31.411 percent by Chartis Overseas Limited, 2.225 percent by Chartis Bermuda Limited, and 1.455 percent by Chartis Luxembourg Financing Limited.

⁽¹³⁾

Also owned 8.21 percent by Chartis Overseas Limited and 5.46 percent by Chartis UK Holdings Limited.

⁽¹⁴⁾

Also owned 9 percent by Chartis International, LLC.

⁽¹⁵⁾

Also owned 0.01 percent by Chartis Latin America Investments, LLC.

⁽¹⁶⁾

Also owned 51 percent by American International Group, Inc.

⁽¹⁷⁾

Also owned 27.1 percent by New Hampshire Insurance Company, 22 percent by National Union Fire Insurance Company of Pittsburgh, Pa., 5.8 percent by AIU Insurance Company, 5 percent by Commerce and Industry Insurance Company, 4 percent by The Insurance Company of the State of Pennsylvania, 1.7 percent by Lexington Insurance Company, 1.6 percent by Chartis Property Casualty Company, 0.7 percent by Illinois National Insurance Co., and 0.6 percent by Granite State Insurance Company.

⁽¹⁸⁾

Also owned 10.04 percent by Chartis Far East Holdings Kabushiki Kaisha, and 6 percent by Chartis Europe, S.A.

⁽¹⁹⁾

Also owned 27 percent by New Hampshire Insurance Company, 22.06 percent by National Union Fire Insurance Company of Pittsburgh, Pa., 5.75 percent by AIU Insurance Company, 5.05 percent by Commerce and Industry Insurance Company, 4.05 percent by The Insurance Company of the State of Pennsylvania, 1.67 percent by Lexington Insurance Company, 1.62 percent by Chartis Property Casualty Company, 0.73 percent by Illinois National Insurance Co., and 0.6 percent by Granite State Insurance Company.

⁽²⁰⁾

Also owned 20 percent by The Insurance Company of the State of Pennsylvania and 10 percent by Chartis Property Casualty Company.

⁽²¹⁾

Also owned 20 percent by The Insurance Company of the State of Pennsylvania and 10 percent by Chartis Property Casualty Company.

⁽²²⁾

Also owned 35.12 percent by New Hampshire Insurance Company and 19 percent by The Insurance Company of the State of Pennsylvania. Effective as of December 31, 2010, the entire 100 percent interest in United Guaranty Corporation was transferred to American International Group, Inc.

⁽²³⁾

Also owned 0.001 percent by United Guaranty Services, Inc.

⁽²⁴⁾

Also owned 24.97 percent by United Guaranty Residential Insurance Company of North Carolina.

406            AIG 2010 Form 10-K

QuickLinks

Exhibit 21