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John Heneghan named Chief Operating Officer; Giles Kesteloot named Chief Strategy Officer

FAIRFAX, Va. – January 14, 2021 – ECS, a leader in advanced technology, science, and engineering solutions, announced that John Heneghan has been named chief operating officer and Giles Kesteloot has become chief strategy officer.

“I am proud to promote John and Giles to the roles of COO and CSO,” said ECS president George Wilson. “They will ensure we continue to provide exceptional customer service, care for our employees, and maintain the business operations and culture that make ECS a great place to work. I am confident their commitment to excellence and talent for driving company growth will continue to benefit ECS for years to come.”

Mr. Heneghan, who served as ECS senior vice president of enterprise solutions from 2017-2020, will oversee all customer delivery, business operations, and business development. He has been instrumental in driving organic growth at ECS, as well as executing ECS’ recent acquisition and integration of DHA Group, Blackstone Federal, Skyris, and ISM. Mr. Heneghan brings over 20 years of experience in emerging technology and digital transformation, IT product development, managed services, business strategy, and corporate development.

“I couldn’t be prouder to be named ECS’ chief operating officer,” said John Heneghan, “I look forward to advancing ECS as a leading provider of critical technological solutions for industry and government alike.”

Mr. Kesteloot most recently served as ECS senior vice president of Homeland Security solutions. He was formerly the president of Blackstone Federal, where he led the company through a sustained period of accelerated growth. Mr. Kesteloot will develop and execute ECS’ corporate business strategy, advancing the company’s offerings across the federal and commercial markets.

“ECS is a company fiercely committed to delivering for its customers, shareholders, and employees,” said Giles Kesteloot. “I look forward to helping execute a strategy rooted in customer success and employee development.”

Together, Mr. Heneghan and Mr. Kesteloot will work to accelerate ECS’ growth and improve company performance, strengthening and scaling key offerings while expanding into new capabilities and emerging technologies. They will work closely with vice president of corporate development Dave West, who will continue to lead ECS’ merger and acquisition strategy and support ASGN and ECS growth strategy more broadly, reporting to Pamela Rothka, CFO.

About ECS
ECS, a segment of ASGN, delivers advanced solutions in cloud, cybersecurity, artificial intelligence (AI), machine learning (ML), application and IT modernization, science, and engineering. The company solves critical, complex challenges for customers across the U.S. public sector, defense, intelligence, and commercial industries. ECS maintains partnerships with leading cloud, cybersecurity, and AI/ML providers and holds specialized certifications in their technologies. Headquartered in Fairfax, Virginia, ECS has more than 3,000 employees throughout the United States. For more information, visit

About ASGN
ASGN Incorporated (NYSE: ASGN) is one of the foremost providers of IT and professional services in the technology, digital, creative, healthcare technology, engineering, life sciences, and government sectors. ASGN and its divisions are viewed as best in class across multiple industries and have built an outstanding reputation for excellence over the past 33 years. ASGN is based in Calabasas, California, with multiple offices throughout the United States, Canada, and Europe. To learn more, visit

Shab Nassirpour, Vice President of Marketing

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