Certifications and Licenses

Agency Certifications


STONE is 100% woman-owned and is considered a Small Business Enterprise (SBE). STONE maintains the following certifications:

  • Ohio Statewide Unified Certification Program – Disadvantaged Business Enterprise (DBE)
  • Ohio Department of Administrative Services (ODAS) Encouraging Diversity, Growth, and Equity (EDGE) Program
  • Columbus Regional Airport Authority – DBE
  • City of Columbus – DBE Female Business Enterprise (FBE)
  • City of Dayton Procurement Enhancement Program (PEP), Small Business Enterprise (SBE), Woman-owned Business Enterprise (WBE)
  • Women’s Business Enterprise National Council (WBENC) WBE


Professional Staff Licenses / Certifications


PE – Professional Engineer (Ohio, Michigan, Indiana, Illinois, Kansas, Tennessee, Maryland)
LEED AP – Leadership in Energy and Environmental Design Associate Professional
CFM – Certified Floodplain Manager
CDT – Construction Document Technologist
AHES – Asbestos Hazard Evaluation Specialist
BCEE – Board Certified Environmental Engineer
CPESC – Certified Professional in Erosion and Sediment Control
EI – Engineering Intern
QEP – Qualified Environmental Professional (QEP) Institute of Professional Environmental Practice
OSHA HAZWOPER – Hazardous Waste Operations and Emergency Response