Biohazard & Trauma Cleanup in Ohio
41 certified biohazard cleanup 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)
Dayton, Warren, Medina, Brookpark, Bellefontaine, Canal Winchester, Chagrin Falls, Chardon, Carlisle, Auburn Twp, Dover, Columbiana, Eastlake, Fairport Harbor, Hudson, Lewis Center, Findlay, Hilliard, Martins Ferry, Lorain, North Canton, Moraine, North Royalton, Strongsville, Tipp City, Toledo
What Ohio biohazard cleanup firms are certified in
Certification counts across the 41 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 |
|---|---|---|
| TCST | Trauma and Crime Scene Technician | 41 |
| WRT | Water Damage Restoration Technician | 41 |
| ASD | Applied Structural Drying Technician | 39 |
| AMRT | Applied Microbial Remediation Technician | 37 |
| FSRT | Fire and Smoke Damage Restoration Technician | 35 |
| OCT | Odor Control Technician | 28 |
41 of these firms hold three or more certifications; 0 appear in two independent registries and carry a cross-verified marker; 19 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 →
Biohazard Cleanup in Ohio: common questions
Is biohazard cleanup work licensed in Ohio?
No US state licenses biohazard cleanup 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 biohazard cleanup firms actually hold?
Across the 41 Ohio firms on file for this work, the most common credentials are TCST (Trauma and Crime Scene Technician) held by 41 firms, WRT (Water Damage Restoration Technician) held by 41 firms, ASD (Applied Structural Drying Technician) held by 39 firms, AMRT (Applied Microbial Remediation Technician) held by 37 firms. 41 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 41 appear in two independent registries and carry a cross-verified marker. Checked August 14, 2026.
Which Ohio cities have the most biohazard cleanup firms?
Cincinnati leads with 5, followed by Columbus (4), Elyria (3). We build a page wherever a city has three or more certified firms; smaller markets are listed below that without their own page.