
STONE is an award-winning professional services environmental, ecological, and engineering design firm. Additionally we are 100% woman-owned. STONE holds the following certifications:
- Woman-Owned Small Business (WOSB), third-party certified through SBA
- Disadvantaged Business Enterprise (DBE) – Ohio and West Virginia
- Ohio Encouraging Diversity, Growth, and Equity (EDGE)
- Small Business Enterprise (SBE) and/or Woman-owned business enterprise (WBE) – Columbus, Dayton, and Toledo, Ohio
- SBE and WBE for the Northeast Ohio Regional Sewer District (NEORSD)
- SBE for the Cincinnati Metropolitan Sewer District (GCMSD)
- DBE Columbus Regional Airport Authority (CRAA)
- Women’s Business Enterprise National Council (WBENC)
Pre-Qualifications
Ohio Department of Transportation (ODOT) Prequalification
We are prequalified by the ODOT for the following categories:
- Bicycle Facilities & Enhancement Design
- Non-complex Roadway Design
- Right of Way (ROW) Plan Development
- Interchange Operations/Modification/Justification Study (IOS/IMS/IJS)
- Safety Study
- Environmental Document Preparation – EA/EIS
- Environmental Document Preparation – CE
- Environmental Document Preparation – Section 4(f)
- Ecological Surveys
- Stream and Wetland Mitigation
- Waterway Permits
- Air Quality Analyses
- Regulated Materials Review
- Asbestos Surveys (qualified, but not an ODOT category)
Our prequalifications include the following:
- Environmental Document Writing and Coordination
- Wetlands
- UST and HAZMAT Preliminary Site Assessments (Phase I)
We have the following certifications:
- Disadvantaged Business Enterprise (DBE)
Municipalities and Counties
Our prequalification list or those we have worked for includes the following city, municipal, and county agencies:
City of Bexley
City of Columbus
City of Dayton
City of Dublin
City of Englewood
City of Fairborn
City of Gahanna
Village of Johnstown
City of Marysville
City of Mt. Vernon Engineer
City of Upper Arlington
City of Westerville
Athens County Commissioners
Delaware County Engineer
Franklin County Engineer
Lawrence County
Licking County Engineer
Lucas County
Montgomery County Engineer
Muskingum County
Perry County Engineer
Pike County
Portage County
Sandusky County
Stark County Engineer
Trumbull Metropolitan Housing Authority (TMHA)
Delaware County Regional Sewer District
Columbus Regional Airport Authority (CRAA)
Ohio Turnpike and Infrastructure Commission (OTIC)
Ohio Facilities Construction Commission (OFCC)
Dayton Regional Transit Authority
Heath Newark Licking County Port Authority
Institutions of Higher Learning
Our prequalification list or those we have worked for includes the following institutions:
Bowling Green State University
Kent State University
The Ohio State University (OSU)
Ohio University
Otterbein University
University of Cincinnati
Park Districts
Our prequalification list or those we have worked for includes the following parks and agencies:
Columbus and Franklin County Metro Parks
Columbus Recreation and Parks
Dayton Five Rivers Metro Parks
Delaware County Preservation Parks
Ohio Department of Natural Resources (ODNR)
Muskingum Watershed Conservancy District
U.S. Forest Service (USFS)
Westerville Parks and Recreation
Agency Certifications

Ohio Statewide Unified Certification Program – Disadvantaged Business Enterprise (DBE)

Ohio Department of Administrative Services (ODAS) Encouraging Diversity, Growth, and Equity (EDGE) program

Northeast Ohio Regional Sewer District (NEORSD)

Cincinnati Metropolitan Sewer District (MSD)

Columbus Regional Airport Authority – Disadvantaged Business Enterprise (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)

City of Toledo Office of Diversity and Inclusion – Women Business Enterprise (WBE)

Woman-Owned Small Business (WOSB) – Federal U.S. SBA (3rd Party Certified)

Women’s Business Enterprise National Council (WBENC) – Women’s Business Enterprise (WBE)

U.S. Small Business Administration certified Women-Owned Small Business (WOSB)
Licenses / Certifications
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PE
Professional Engineer (Ohio, West Virginia, Kentucky, Michigan, New Jersey, Oklahoma)
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AHES
Asbestos Hazard Specialist
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LRA
Lead Inspector/Risk Assessor
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LEED AP
Leadership in Energy & Environmental Design
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BCEE
Board Certified Environmental Engineer
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CP
Ohio Voluntary Action Program Certified Professional
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CPESC
Certified Professional in Erosion & Sediment Control
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CESSWI
Certified Erosion, Sediment, & Stormwater Inspector
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PWS
Professional Wetland Scientist
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Certified Smoke Reader (Visible Emissions)
US EPA Method 9 certification
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Ohio EPA
Ohio EPA Qualified Data Collector Level II/III
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USFWS
Federal (USFWS) Permit for Mussel Surveys
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ODNR
State (ODNR) Permit for Mussel Surveys
ODNR Herpetologist
“Thanks. I know that you have a good reputation in the community and have suggested you to my client as well.“