Board of Directors | NCS Multistage Holdings, Inc

Mr. McShane has served as the Chairman of our Board since February 2017 and as one of our directors since December 2012. From 2009 to 2014, Mr. McShane served as an Operating Partner for Advent in the oil and natural gas services and equipment sector. Prior to his engagement with Advent, Mr. McShane was the Chairman and Chief Executive Officer of Grant Prideco Inc., a manufacturer and supplier of oilfield drill pipe and other drill stem products. Prior to joining Grant Prideco, Mr. McShane was Senior Vice President—Finance and Chief Financial Officer of BJ Services Company, a provider of pressure pumping, cementing, stimulation and coiled tubing services for oil and natural gas operators. Mr. McShane currently serves on the board of directors of Forum Energy Technologies, Inc. and previously served on the boards of directors of Enbridge Inc., Superior Energy Services, Inc. and Oasis Petroleum Inc.

Mr. Deane has served as one of our directors since December 2012 and served as Chairman of the Board from December 2012 to April 2016. Mr. Deane previously served on the board of directors of Variperm Energy Services and RGL Reservoir Management Inc. From 2009 to 2016, Mr. Deane served as an Operating Partner for Advent in the oil and natural gas industry, primarily in the services sector. Prior to his engagement with Advent, Mr. Deane served as President of ReedHycalog, L.P., Vice President of Schlumberger Limited, President of Hycalog and numerous executive and technical positions with Reed Tool Co. and Camco Intl. Mr. Deane has over 40 years of experience in the oil and natural gas industry, specializing in drilling technology. Mr. Deane holds a B.S. in Physics from the Colorado School of Mines.

Mr. Grewal has served as one of our directors since December 2012. Since May 2025, he is the managing partner of MEM Growth Partners and he was previously the managing partner of 42 North Renewables from September 2022 through April 2025 and the senior vice president of strategy at Rapid Micro Biosystems, a position he held from March 2021 through August 2022. Prior to joining Rapid Micro Biosystems, Mr. Grewal was a managing director at Advent, from 2009 through February 2021, where he focused on investments in the energy and industrial sectors. Prior to joining Advent, Mr. Grewal was a vice president at Bain Capital where he was involved in investments in several large companies in the industrial, media and retail sectors. He previously served on the boards of Culligan International Group, BOS Solutions Ltd., Oleoducto Central S.A. (Ocensa), Quala and RGL Reservoir Management Inc. Mr. Grewal received an H.B.A. from the Richard Ivey School of Business at the University of Western Ontario and an M.B.A. from Harvard Business School.

Ms. Mitchell has served as one of our directors since August 2019. She is the President of Troy Energy, a position she has held since March 2020. Since June 2022, she has served on the board of directors of Freehold Royalties and is a member of the Governance, Nominating, and Compensation Committee and the Reserves Committee. Previously, Ms. Mitchell served as the Chief Executive Officer and member of the board of directors of Corterra Energy LLC from December 2016 through November 2019. Prior to that, she served in various positions with Newfield Exploration Company from 2004 through 2016, including as the Vice President, Mid-Continent from February 2015 through August 2016, Vice President, Corporate Development from May 2014 through January 2015 and General Manager, Mid-Continent Region from December 2011 through April 2014. She holds a B.S. in Chemical Engineering from the University of Missouri. Ms. Mitchell has over 20 years of operational leadership experience in the oil and natural gas industry. Ms. Mitchell is also a member of the National Association of Corporate Directors and holds a NACD.D certification. We believe that Ms. Mitchell’s management experience and expertise in the oil and natural gas industry qualify her to serve as one of our directors.

Mr. Nipper has served as one of our directors since December 2012. Mr. Nipper co-founded NCS and served as our Chief Executive Officer from November 2016 until November 2022 and from December 2012 until April 2016. He previously served as our Executive Chairman from April 2016 until February 2017. He has more than 30 years of industry experience and has invented several patented technologies relating to downhole oil and natural gas and geothermal service equipment. Prior to founding NCS, Mr. Nipper spent 18 years with Tri-State Oil Tools Inc. and Baker Hughes, including various operations and sales management positions. Prior to leaving Baker Hughes, he held the position of North American Marketing Manager.

Mr. Ralls has served as one of our directors since March 2017. Mr. Ralls previously served as Executive Chairman of Rowan Companies plc from April 2014 to April 2016, its Chief Executive Officer from January 2009 until April 2014, and its President and Chief Executive Officer from January 2009 to April 2013. Mr. Ralls served as Senior Vice President and Chief Financial Officer from 2001 to 2005 and as Executive Vice President and Chief Operating Officer of GlobalSantaFe Corporation from 2005 until the completion of the merger of GlobalSantaFe with Transocean, Inc. in 2007. Mr. Ralls previously served on the boards of directors of Cabot Oil & Gas Corporation, Pacific Drilling, S.A., Superior Energy Services, Inc. and Rowan Companies plc as well as the boards of the American Petroleum Institute, the National Oceanic Industries Association and the International Association of Drilling Contractors.

Mr. Hummer is our Chief Executive Officer and has served as a member of our Board since November 2022. He previously served as our Chief Financial Officer and Treasurer from March 2020 until November 2022 and our Chief Financial Officer from November 2016 until March 2020. Prior to the Chief Financial Officer role, Mr. Hummer previously served as Executive Vice President, Corporate Development from August 2015 until November 2016 and as Vice President, Corporate Development from July 2014 until August 2015. Prior to joining us, Mr. Hummer served as Director, Investment Banking at Lazard Freres & Co. from January 2011 to April 2014, during which time he advised clients on a broad range of transactions, including mergers & acquisitions, restructuring and debt and equity capital raises. Mr. Hummer holds a B.S. in Economics from the Wharton School of the University of Pennsylvania.