Browse Stacks: Business: Top American corporate tax avoiders

These companies on our list also are also part of the S&P 500 index but either inverted to incorporate overseas or claim they were never U.S. companies in the first place. The two exceptions on the list are the oil and gas company Schlumberger and the insurer Ace, which were both originally founded outside the U.S.

Michael Kors Holdings LtdU.S. headquarters: New York CityCountry of incorporation: British Virgin IslandsTicker: KORS 1.65%  

Delphi Automotive PLCU.S. headquarters: Troy, Mich.Country of incorporation: Channel IslandsTicker:  DLPH 0.52%

Accenture PLCU.S. headquarters: ChicagoCountry of incorporation: IrelandTicker:  ACN -0.58%

Covidien PLCU.S. headquarters: Mansfield, Mass.Country of incorporation: IrelandTicker:  COV 0.07%

Seagate Technology Public Ltd. Co.U.S. headquarters: Cupertino, Calif.Country of incorporation: IrelandTicker:  STX

LyondellBasell Industries NVU.S. headquarters: HoustonCountry of incorporation: NetherlandsTicker:  LYB 1.17%

Nielsen NVU.S. headquarters: New York CityCountry of incorporation: NetherlandsTicker:  NLSN 0.29%

Avago Technologies Ltd.U.S. headquarters: San JoseCountry of incorporation: SingaporeTicker:  AVGO 1.14%

Aon plc.U.S. headquarters: ChicagoCountry of incorporation: United KingdomTicker:  AON -0.11%

Pentair Ltd.U.S. headquarters: MinneapolisCountry of incorporation: SwitzerlandTicker:  PNR 1.04%

TE Connectivity Ltd.U.S. headquarters: Berwyn, Pa.Country of incorporation: SwitzerlandTicker:  TEL 0.64%

Transocean Ltd.U.S. headquarters: HoustonCountry of incorporation: SwitzerlandTicker:  RIG 0.81%

Tyco International Ltd.U.S. headquarters: Princeton, N.J.Country of incorporation: SwitzerlandTicker:  TYC 0.09%

Ensco PLCU.S. headquarters: HoustonCountry of incorporation: U.K.Ticker:  ESV 0.32%

Noble Corp.U.S. headquarters: Sugarland, TexasCountry of incorporation: U.K.Ticker:  NE -0.31%

Rowan Cos. PLCU.S. headquarters: HoustonCountry of incorporation: U.K.Ticker:  RDC -0.06%

A shorter version of this list appeared in the July 21, 2014 issue of Fortune.