Commercial Large-Loss Restoration in Ohio
28 certified commercial firms on file in Ohio. Credentials below are verified against IICRC's Certified Firm registry.
Cities with 3+ certified firms
Also served (1–2 firms)
Cincinnati, Columbus, Toledo, Bellefontaine, Auburn Twp, Atwater, Chardon, Canton, Englewood, Elyria, Hudson, Lima, Medina, Fairfield, Moraine, Morrow, Perrysburg, North Canton, Tipp City, Warren, Westlake, Willowick
What Ohio commercial firms are certified in
Certification counts across the 28 Ohio firms on file for this work. These are the credentials on record with the issuing body — not what the firms advertise.
| Credential | What it covers | Ohio firms |
|---|---|---|
| CDS | Commercial Drying Specialist | 28 |
| WRT | Water Damage Restoration Technician | 28 |
| AMRT | Applied Microbial Remediation Technician | 24 |
| ASD | Applied Structural Drying Technician | 24 |
| FSRT | Fire and Smoke Damage Restoration Technician | 23 |
| OCT | Odor Control Technician | 23 |
28 of these firms hold three or more certifications; 0 appear in two independent registries and carry a cross-verified marker; 12 operate under a national franchise brand, which is separately owned and separately credentialled from the brand itself.
Ohio mold law: tenant rights, disclosure & insurance →
Every Ohio firm we hold a record for, A–Z by city →
Commercial in Ohio: common questions
Is commercial work licensed in Ohio?
No US state licenses commercial work specifically. General contractor registration may apply to any rebuild that follows. The checkable credential is IICRC certification, which is what every listing on this page is verified against.
What certifications do Ohio commercial firms actually hold?
Across the 28 Ohio firms on file for this work, the most common credentials are CDS (Commercial Drying Specialist) held by 28 firms, WRT (Water Damage Restoration Technician) held by 28 firms, AMRT (Applied Microbial Remediation Technician) held by 24 firms, ASD (Applied Structural Drying Technician) held by 24 firms. 28 hold three or more certifications. Certification describes verified training rather than the services a firm chooses to advertise.
How were these Ohio firms verified?
Every certification was checked against IICRC's own Certified Firm registry, not against the firm's marketing. 0 of the 28 appear in two independent registries and carry a cross-verified marker. Checked August 14, 2026.