Robert G. Taub was chairman of the Commission for more than 6 years, from December 2014 until January 2021. Three times appointed to the Commission following unanimous confirmations by the U.S. Senate in 2011, 2016, and 2023, Commissioner Taub has more than 40 years of public service experience at the local, state, and federal levels. Before joining the Commission in October 2011, he was a principal civilian advisor to the Secretary of the Army John M. McHugh. As an Army senior executive, he helped the Secretary lead a workforce of more than 1.2 million people, and manage an annual budget exceeding $200 billion. Commissioner Taub was awarded the Army's Decoration for Distinguished Civilian Service.

Commissioner Thomas G. Day was nominated by President Joseph Biden and confirmed by the United States Senate on September 28, 2023, for the remainder of a six-year term that expires October 14, 2028. Mr. Day served 45 years in the federal government in both the US Army and the US Postal Service. During his 35-year career in the Postal Service, he held senior executive positions as vice president-engineering, senior vice president-government relations, senior vice president-intelligent mail, and the chief sustainability officer. In addition, at the Postal Service, he was the chair of the Standards Board at the Universal Postal Union. Mr. Day was recognized with a Board of Governors award for his leadership in response to the Anthrax attack. Following his retirement from the Postal Service, he was employed by the International Post Corporation where he was the chief commercial and chief financial officer.

Ann C. Fisher has been sworn in twice as Commissioner of the Postal Regulatory Commission following nominations by both President Trump and Biden and unanimous confirmation by the United States Senate. Commissioner Fisher is a proud 32-year federal employee. Prior to joining the Commission, Fisher spent twelve years working in the U.S. Senate, advising members on small business, health care, federal employee and Postal Service issues. She began her career serving as an economist for her home state senator, Larry Pressler (R-SD) on the Senate Small Business Committee.