Exhibit 21

NORTHERN TRUST CORPORATION SUBSIDIARIES AS OF FEBRUARY 25, 2011.

	Percent Owned		Jurisdiction of Incorporation
The Northern Trust Company		100%	Illinois
Norlease, Inc.		100%	Delaware
TNT-NL Leasing I, Inc.		100%	Delaware
TNT-NL Eurolease I, Ltd.		100%	Bermuda
TNT-NL Eurolease II, Ltd.*		100%	Bermuda
Clenston Ltd.*		100%	Bermuda
MFC Company, Inc.		100%	Delaware
The Northern Trust Company, Canada		100%	Ontario, Canada
Nortrust Nominees, Ltd.		100%	England
The Northern Trust Company U.K. Pension Plan Limited		100%	England
Northern Trust Guernsey Holdings Limited		99%	Guernsey
Northern Trust (Guernsey) Limited		99%	Guernsey
The Northern Trust International Banking Corporation		100%	Edge Act
Northern Trust Cayman International, Ltd.		100%	Cayman Islands,
			BWI
The Northern Trust Company of Hong Kong Limited		99.99%	Hong Kong
Northern Trust Partners Guernsey Limited		100%	Guernsey
The Nelson Trafalgar Guernsey Limited Partnership		100%	Guernsey
Northern Trust Fund Managers (Ireland) Limited		100%	Ireland
Northern Trust Management Services Limited		100%	England
Northern Trust Global Investments Limited		100%	England
The Northern Trust Scottish Limited Partnership		99%	Scotland
Northern Trust Luxembourg Capital S.A.R.L.		100%	Luxembourg
Northern Trust (Ireland) Limited		100%	Ireland
Northern Trust Investor Services (Ireland) Limited		100%	Ireland (Inactive)
Northern Trust Custodial Services (Ireland) Limited		100%	Ireland (Inactive)
Northern Trust Fund Services (Ireland) Limited		100%	Ireland
Nortrust Nominees (Ireland) Limited		100%	Ireland
Northern Trust Property Services (Ireland) Limited		100%	Ireland
Northern Trust Management Services (Ireland) Limited		100%	Ireland
Northern Trust International Fund Administration Services (Ireland) Limited		100%	Ireland
International Securisation Managers (Ireland) Limited		100%	Ireland
Northern Trust Fiduciary Services (Ireland) Limited		100%	Ireland
BBI Nominees Limited		100%	Ireland (Inactive)
Northern Trust GFS Holdings Limited		99%	Guernsey
Northern Trust Fiduciary Services (Guernsey) Limited		99%	Guernsey
Arnold Limited		99%	Guernsey
Control Nominees Limited		99%	Guernsey
Truchot Limited		99%	Guernsey
Vivian Limited		99%	Guernsey
Doyle Administration Limited		99%	Guernsey
Barfield Nominees Limited		99%	Guernsey
NT Director One Limited		100%	Guernsey

NORTHERN TRUST CORPORATION SUBSIDIARIES AS OF FEBRUARY 25, 2011.

(continued)

	Percent Owned		State of Incorporation
NT Director Two Limited		100%	Guernsey
NT Nominee One Limited		100%	Guernsey
NT Nominee Two Limited		100%	Guernsey
NT Secretary Limited		100%	Guernsey
Trafalgar Trust Company (Guernsey) Limited		100%	Guernsey
Northern Trust International Fund Administration Services     (Guernsey) Limited		99%	Guernsey
Trafalgar Representatives Limited		50%	Guernsey
Nelson Representatives Limited		50%	Guernsey
Admiral Nominees Limited		50%	Guernsey
Northern Trust Fiduciary Services (Jersey) Limited		99%	Jersey
Saline Nominees Limited		99%	Guernsey
Northern Trust International Fund Administrators (Jersey) Limited		100%	Jersey
Northern Trust Partners Scotland Limited		100%	Scotland
Northern Operating Services Private Limited		99%	India
NTG Services LLC		100%	Delaware LLC
NT Mortgage Holdings LLC		100%	Delaware LLC
Northern Trust Investments, Inc.		100%	Illinois
Northern Trust Holdings Limited		100%	England
Northern Trust Global Services Limited		100%	England
Northern Trust European Holdings Limited		100%	England
Northern Trust Luxembourg Management Company S.A.		99.99%	Luxembourg
Northern Trust Directors Services (Guernsey) Limited		100%	Guernsey
Northern Trust, NA		100%	National Bank
Realnor Properties, Inc.		100%	Florida (Inactive)
Northern Annuity Sales, Inc.		100%	Florida
Waterline Partners, LLC		100%	California
Northern Trust Bank, FSB		100%	Federal Savings Bank
Northern Trust Holdings L.L.C.		100%	Delaware
Northern Investment Corporation		100%	Delaware
Northern Investment Management Company		100%	Delaware (Inactive)
Northern Trust Securities, Inc.		100%	Delaware
Northern Trust Services, Inc.		100%	Illinois
Nortrust Realty Management, Inc.		100%	Illinois

NORTHERN TRUST CORPORATION SUBSIDIARIES AS OF FEBRUARY 25, 2011.

(continued)

	Percent Owned		State of Incorporation
The Northern Trust Company of New York		100%	New York
Northern Trust Global Advisors, Inc.		100%	Delaware
NT Global Advisors, Inc.		100%	Ontario, Canada
The Northern Trust Company of Connecticut		100%	Connecticut
Northern Trust Global Investments Japan, K.K.		100%	Japan
NTC Capital I		100%	Delaware
NTC Capital II		100%	Delaware
Equilend Holdings LLC		10%	Delaware
The Northern Trust Company of Delaware		100%	Delaware
TNT – Comer College Prep, LLC		100%	Illinois

*Indirectly owned by Norlease Inc. through Delaware business trusts.