HRAOK is now a City of Tulsa Small Business Enterprise (SBE) company. Our number is 05-82-17. Contact us to learn more about how we can serve you! HRAOK has a team of professionals with a broad variety of experience in civil engineering and land surveying. Current staff includes licensed land surveyors, multiple survey crews, civil/cad technicians and licensed civil engineers. With an established team of professionals, HRAOK has the depth and breadth of experience necessary to successfully plan, survey, design, and manage all types of residential, commercial and institutional development projects as well as complex municipal infrastructure improvements. HRAOK has earned a reputation for professionalism, integrity, and responsiveness to clients. The firm is well positioned and committed to maintaining this reputation through its core beliefs and business philosophy.