Staff Directory
Company Owners
- Troy J. Groth, P.E. - Principal Engineer & President
Denison Office
Engineers/Land Surveyors
- Troy J. Groth, P.E. - Project Manager
- Terence E. Crawford, P.E. & P.L.S. - Project Engineer/Land Surveyor
Design Department
- Teresa Keairnes - CADD Technician
- Louis Luvaas - CADD Technician
Office Staff
- Kathi Gustafson - Director of Financial Operations & Human Resources
Survey Department
- Tom Rosauer - Survey Coordinator
- Brian Witzel - Survey Crew Leader
- Bryan Phillips - Survey Technician
Onawa Office
Engineers/Land Surveyors
- Troy J. Groth, P.E. - Project Manager
- Terence E. Crawford, P.E. & P.L.S. - Project Engineer/Land Surveyor
Design Department
- Teresa Keairnes - CADD Technician
- Louis Luvaas - CADD Technician
Office Staff
Survey Department
- Tom Rosauer - Survey Coordinator
- Brian Witzel - Survey Crew Leader
- Bryan Phillips - Survey Technician
