Bethesda, MD  – December 2025 – Aretum, a leading Government Services provider, today announced that Michael Herrington has joined the company as the Defense Sector Lead.  

Herrington has more than 25 years of experience developing leading delivery and growth for multiple companies. Prior to Aretum, Herrington was the CEO of Tsymmetry from 2023, a company that supports client missions around the world through solutions and services with a special focus on National Security and Public Safety. Prior to Tsymmetry, Michael was the Division Vice President and General Manager at Leidos, leading a team of nearly 1,000 professionals for projects in Defense, and was responsible for profit and loss of this business unit generating $286M in annual revenue. 

“I am very excited to have Michael join our team,” said Rohit Gupta, CEO of Aretum. “His unique blend of Defense domain expertise, global leadership, people management, and organizational stewardship talents will help us continue to expand and successfully deliver on our customers’ missions within the growing Aretum Defense Sector. I am looking forward to collaborating with him to deliver for our company.” 

Prior to Leidos, Herrington served as Senior VP at Michael Baker International, delivering various IT Engineering, Airfield Operations, and other services to all DoD branches and foreign-government customers. At DynCorp, he led all international, foreign military sales and non-FAR based operations and business development in the Middle East/North Africa market space. 

“Aretum is a very exciting company to join due to the leadership team and technical staff Rohit has assembled,” commented Herrington. “I’m honored to be selected as a part of the Executive Leadership Team that’ll help Aretum realize its potential.” 

Herrington holds a Master of Science in Taxation and a Bachelor of Science in Accounting from Louisiana State University. He is also a Certified Public Accountant, Private Pilot and served in the Army / Louisiana Army National Guard. 

About Aretum    
Aretum is a forward-thinking, innovative Government IT services contractor, recognized for its expertise in emerging technologies. Specializing in areas such as digital transformation, systems modernization, cybersecurity, and artificial intelligence, Aretum provides customized IT solutions that empower government agencies to meet the demands of the future.    

For additional information, please contact:    
bd@aretum.com    
https://aretum.com