Colby McMahan

Colby McMahan is the Director of Major Capital Projects at Milestone Project Services, LLC, where he provides strategic oversight for Milestone International, Milestone Industrial, the Major Capital Projects Division, and the Project Controls Division. With more than 20 years of experience in the Oil & Gas industry, Colby has successfully led complex, high-profile projects from conception to completion—delivering them on time, within budget, and to the highest standards of safety and quality.
Throughout his career, Colby has earned a reputation for combining technical expertise with practical leadership, ensuring projects consistently meet or exceed client expectations. At Milestone, he leverages innovative tools such as MPS ProPak and 3D Laser Scanning Services to improve planning, reduce costs, and mitigate risk. His focus on team-building and client relationships drives long-term success and reinforces Milestone’s reputation for excellence.
Outside of work, Colby’s greatest joy is his family. He and his wife, a dedicated nurse in their hometown, are the proud parents of five children: four sons and one daughter. Three of their sons have graduated from high school, with the fourth set to graduate next year, leaving their daughter as the youngest at home. Colby and his wife love spending time together, cooking out, and sharing their passion for classic cars and hot rods.
Being part of the Milestone family is one of Colby’s greatest privileges. He remains deeply committed to the company’s mission and looks forward to guiding Milestone’s continued growth, innovation, and success in the years ahead.