Margaret Mary Smyth is Chief Financial Officer & Senior Vice President of NG US I, Inc.

She is also Member of National Association of Corporate Directors (Virginia) and Member of Women Corporate Directors and on the board of 11 other companies.

In the past she held the position of Chief Financial Officer for National Grid Plc and Chief Financial Officer & Director at National Grid USA (a subsidiary of National Grid Plc), Member-IFRS Interpretations Committee at International Accounting Standards Board, Chief Accounting Officer & Vice President for 3M Co., Chief Financial Officer & Vice President at Hamilton Sundstrand Corp., Vice President-Finance at Consolidated Edison Energy, Inc., Vice President-Finance at Consolidated Edison Company of New York, Inc., Senior Managing Partner at Deloitte & Touche LLP, Senior Managing Partner at Arthur Andersen LLP and Vice President & Controller of United Technologies Corp.

Margaret Mary Smyth received an undergraduate degree from Fordham University and a graduate degree from The Leonard N Stern School of Business.