Anacostia Rail Holdings (ARH) has appointed Aimee Nolan as Chief Legal Officer, effective immediately. She joins the executive leadership team and will oversee legal, compliance, governance, and risk functions as the company continues to grow.
Nolan succeeds Mark Sidman, General Counsel and Corporate Secretary, who will retire on March 31, 2026, after more than ten years with ARH. Since joining the company in 2013, Sidman played a key role in supporting long-term growth and strengthening governance and integrity across the organisation.
Nolan joins ARH from Zoro Tools, Inc., a subsidiary of W.W. Grainger, Inc., where she served as General Counsel and executive leadership team member. She helped guide the business through rapid growth and transformation. Before that, she spent more than 25 years at W.W. Grainger, most recently as Vice President and Associate General Counsel. Her experience spans technology and e-commerce, data protection, crisis management, global sourcing, mergers and acquisitions, regulatory compliance, and risk management.
Peter Gilbertson, Chief Executive Officer of ARH, thanked Sidman for his long-standing service and leadership. He said Nolan brings the strategic focus and operational discipline needed to support ARH’s responsible growth and future ambitions.
Nolan holds a Juris Doctor from the University of Detroit Mercy School of Law and a Bachelor of Arts in International Relations and French from Michigan State University. She also completed executive leadership training at Northwestern University’s Kellogg School of Management and is active in civic and nonprofit organisations.
ARH said the leadership transition supports its continued focus on disciplined growth, strong governance, and long-term value creation.
