In 1976, the late Robert J. (Bob) MacArthur founded MacArthur Associated Consultants, LLC (MAC). Bob began the company with only two employees and focused on military and aviation projects. With Bob’s first major airport project in 1976, MAC was well on its way to becoming one of Oklahoma’s top five engineering consulting firms that we are today. Bob passed away in 2001, but his legacy continues through the work of our current president, Sam Pappas and vice president, Keith Angier.
Sam and Keith fuel the MAC vision through continued dedication to our community and commitment to producing quality work. Their work has proved successful in that the MAC Family has grown from just 14 employees in 2001 to more than 35 employees today.
MAC remains dedicated to centering our values around our fundamental principles: trust, integrity and unparalleled customer service. We attribute our continued success to the solid foundation Bob laid for us more than 40 years ago.
1976 – MAC is founded by Robert (Bob) J. MacArthur
1976 – First Airport Project
1988 – Remington Park Project
1995 – First Military On-Call Contract
2001 – Sam and Keith become MAC’s new owners
2003 – MAC becomes Program Manager for $650 million-dollar I-40 Crosstown Project
2012 – MAC further diversifies our services by adding a full-service survey team
2012 – MAC acquires Bison Engineering to expand Bridge Division growing MAC to 35 employees
2015 – MAC builds and moves into our new office building
2019 – MAC expands partnership to Ken Gillespie, John Stovall, Russell Kent, and David Woody II