Nancy currently serves as a director of a number of corporations. She is a member of the board of the Canada West Foundation. She chairs the board of Arthritis Society Canada. Among her other past board service, Nancy served as a Director on the Board of Governors of the University of Saskatchewan from 2005-2013, serving as the Chair of the Board in the last three years. Nancy also sat on the Board of Cameco Corporation (CCO on the TSX; CCJ on the NYSE) for 24 years, and, in that time, chaired the Compensation Committee, the Audit Committee, and the Governance Committee. She served on the Canada Pension Plan Investment Board for 9 years; during part of that board service, she chaired the Governance Committee. She served on the Board of Capital Markets Implementation Authority, to work toward a national securities regulator for Canada.

Nancy has led McDougall Gauley teams on numerous mergers and acquisitions, acting for vendors, purchasers or the corporation being acquired.

Nancy was involved for many years with the accounting profession, most recently, she was a public director of CPA Canada from 2016-2022. She previously served as public director of the Canadian Institute of Chartered Accountants, as it then was, from 1998 to 2004. During that time she served on the Public Interest and Integrity Committee of the CICA for the development of revised independence rules for the C.A. profession. She was granted honorary membership in the Saskatchewan Institute of Chartered Accountants in 1997.

In December 2014, Nancy was a recipient of the Women's Executive Network’s (WXN) 2013 Canada's Most Powerful Women: Top 100 Awards in the Corporate Directors category. These awards celebrate and highlight the professional achievements of women across the country in the private, public, and not-for-profit sectors. Award winners were selected based on their strategic vision and leadership, commitment to their communities and the financial performance of their organizations.