Exhibit 21
BRISTOW GROUP INC.
Subsidiaries as of March 31, 2015

Company |  | Place of Incorporation | Percentage of Stock Owned
ALN, Inc. | Delaware | 100 | % |
Air Kilroe Limited | England | 60 | % | *
Aircraft Logistics Pty. Ltd. | Australia | 85 | % | *
Aircrew Logistics Pty. Ltd. | Australia | 85 | % | *
Airnorth Fleet Pty. Ltd. | Australia | 85 | % | *
Air South West Limited | England | 60 | % | *
Atyrau-Bristow Airways Service | Kazakhstan | 49 | % | *
Aviashelf Aviation Co. | Russia | 48.5 | % | *
BGI Aviation Services UK LP | England | 100 | % |
BGI Aviation Technical Services Nigeria Limited. | Nigeria | 100 | % | *
BGI Aviation Technical Services (Overseas) Limited. | England | 100 | % | *
BGI International Ltd. | Cayman Islands | 100 | % |
BHNA Holdings Inc. | Delaware | 100 | % |
BL Holdings B.V. | Netherlands | 100 | % |
BL Holdings II C.V. | Netherlands | 100 | % |
BL Scotia LP | Scotland | 100 | % |
BL US Holdings LLC | Delaware | 100 | % |
BriLog Leasing Limited | Cayman Islands | 100 | % |
Bristow Academy, Inc. | California | 100 | % |
Bristow Academy (UK) Limited | England | 100 | % | *
Bristow Alaska, Inc. | Alaska | 100 | % |
Bristow Aviation Holdings Limited | England | 49 | % |
Bristow Canada Holdings Inc. | British Columbia | 100 | % |
Bristow Canadian Real Estate Company Inc. | British Columbia | 100 | % |
Bristow Caribbean Limited. | Trinidad/Tobago | 100 | % | *
Bristow Cayman Ltd. | Cayman Islands | 100 | % |
Bristow Helicopter Group Limited | England | 100 | % |
Bristow Helicopters (Ghana) Limited | Ghana | 100 | % | *
Bristow Helicopters (International) Limited | England | 100 | % | *
Bristow Helicopters (Nigeria) Limited | Nigeria | 40 | % | ***
Bristow Helicopters Australia Pty. Ltd. | Australia | 100 | % | *
Bristow Helicopters Inc. | Delaware | 100 | % |
Bristow Helicopters Leasing Limited | England | 60 | % | *
Bristow Helicopters Limited | England | 100 | % | *
Bristow Holdings Company Ltd. | Cayman Islands | 100 | % |
Bristow Holdings Company Ltd. III | Cayman Islands | 100 | % |
Bristow International Aviation (Guernsey) Limited | Guernsey | 100 | % | *
Bristow International Leasing Limited | Cayman Islands | 100 | % |
Bristow International Panama S. de RL | Panama | 100 | % |
Bristow Management Services Pty Limited | Australia | 100 | % | *
Bristow Norway AS | Norway | 100 | % | *
Bristow Panama Inc. | Panama | 100 | % |
Bristow Southeast Asia Limited | England | 100 | % | *

Bristow Staff Pension Scheme Trustees Limited | England | 100 | % | *
Bristow Technical Services Limited | England | 100 | % | *
Bristow Travel Proprietary Limited | Australia | 100 | % | *
Bristow (UK) LLP | England | 100 | % |
Bristow U.S. Holdings LLC | Delaware | 100 | % |
Bristow U.S. LLC | Louisiana | 100 | % |
Bristow Worldwide LP | England | ** |  |
Caledonian Helicopters Limited | England | 100 | % | *
Capiteq Limited | Australia | 85 | % | *
Cougar Helicopters Inc. | Canada | 40 | % |
E170 Fleet Pty. Ltd. | Australia | 85 | % | *
Eastern Airways (UK) Limited | England | 60 | % | *
Eastern Airways Europe Limited | England | 60 | % | *
Eastern Airways International Limited | England | 60 | % | *
Eastern Airways (Isle of Man) Limited | Isle of Man | 60 | % | *
Eastern Airways Share Plan Limited | England | 60 | % | *
Easternhill Estates Limited | England | 60 | % | *
Global Aviation Holdings Limited | England | 60 | % | *
Global Aviation Limited | England | 60 | % | *
Humberside International Airport Limited | England | 49.62 | % |
Kingsmill Insurance Company Limited | Guernsey | 100 | % | *
Lider Taxi Aereo S.A. | Brazil | 41.88 | % |
Offshore Logistics do Brasil Servicos Industrials E Maritimos Limitado | Brazil | 100 | % |
Pan African Airlines (Nigeria) Limited. | Nigeria | 49 | % |
Petroleum Air Services | Egypt | 25 | % |
Regional Handling Limited | Isle of Man | 60 | % |
Regional Link Airlines Pty. Ltd. | Australia | 85 | % | *
Rotorwing Leasing Resources, L.L.C. | Louisiana | 100 | % |
Sakhalin Bristow Air Services Limited | England | 60 | % | *
Severn Aviation Limited. | England | 100 | % | *
Steadycontrast Limited | England | 49.62 | % |
Syncom Pty. Ltd. | Australia | 85 | % | *
Turkmenistan Helicopters Limited | Turkmenistan | 51 | % | *
UK Air Rescue Limited | England | 100 | % | *
United Helicopters Limited | England | 100 | % | *

_______________
* Percentage owned by Bristow Helicopter Group Limited (BHGL) or its subsidiaries.

** | Bristow Worldwide LP is a partnership between Bristow (UK) LLP and Bristow Aviation Holdings Limited. Under the Partnership Agreement 95.88% of the profits and losses of BriLog Leasing Limited and Bristow Cayman Ltd. and 5% of the profits and losses of Bristow Helicopter Group Limited. and its subsidiaries are allocated to Bristow (UK) LLP. The remaining 4.12% of the profits and losses of Brilog Leasing Limited and Bristow Cayman Ltd. and 95% of the profits and losses of Bristow Helicopter Group Limited and its subsidiaries are allocated to Bristow Aviation Holdings Limited.

*** | Bristow Helicopters (Nigeria) Limited (“BHNL”) is a joint venture in Nigeria with local partners, in which Bristow Helicopters Limited owns a 40% interest, unrelated local Nigerian partners together owned a 10% interest, a Nigerian company owned 100% by Nigerian employees owns a 48% interest and an employee trust fund owns the remaining 2% interest. BHNL provides helicopter services to clients in Nigeria.