Mr. John P. Williamson is a Chief Executive Officer & Director at Atkore International Group, Inc., a President, Chief Executive Officer & Director at Atkore International Holdings, Inc. and a President, Chief Executive Officer & Director at Atkore International, Inc.

He is on the Board of Directors at National Electrical Manufacturers Association, Atkore International Group, Inc., Atkore International Holdings, Inc., Atkore International, Inc. and Unistrut International Corp. Mr. Williamson was previously employed as a President-Water & Wastewater Division by ITT Corp., a Senior Vice President-Global Operations by Danaher Corp., a Senior Vice President-Global Operations by Fluke Corp., and a President by Jennings Technology Co. LLC.

He received his undergraduate degree from California State University-Fullerton.