Biohazard & Trauma Cleanup in Wisconsin
30 certified biohazard cleanup firms on file in Wisconsin. Credentials below are verified against IICRC's Certified Firm registry.
Cities with 3+ certified firms
Also served (1–2 firms)
Waukesha, Stevens Point, Burlington, Baraboo, Cottage Grove, Deerfield, Deforest, Chippewa Falls, Appleton, Madison, Kaukauna, Menomonee Falls, Mount Pleasant, Pewaukee, Plover, New Berlin, Oshkosh, South Milwaukee, Plymouth, Two Rivers, Turtle Lake, Verona, Watertown, Wausau, Wauwatosa
What Wisconsin biohazard cleanup firms are certified in
Certification counts across the 30 Wisconsin 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 | Wisconsin firms |
|---|---|---|
| TCST | Trauma and Crime Scene Technician | 30 |
| WRT | Water Damage Restoration Technician | 29 |
| FSRT | Fire and Smoke Damage Restoration Technician | 26 |
| ASD | Applied Structural Drying Technician | 24 |
| OCT | Odor Control Technician | 23 |
| AMRT | Applied Microbial Remediation Technician | 21 |
29 of these firms hold three or more certifications; 0 appear in two independent registries and carry a cross-verified marker; 14 operate under a national franchise brand, which is separately owned and separately credentialled from the brand itself.
Every Wisconsin firm we hold a record for, A–Z by city →
Biohazard Cleanup in Wisconsin: common questions
Is biohazard cleanup work licensed in Wisconsin?
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 Wisconsin biohazard cleanup firms actually hold?
Across the 30 Wisconsin firms on file for this work, the most common credentials are TCST (Trauma and Crime Scene Technician) held by 30 firms, WRT (Water Damage Restoration Technician) held by 29 firms, FSRT (Fire and Smoke Damage Restoration Technician) held by 26 firms, ASD (Applied Structural Drying Technician) held by 24 firms. 29 hold three or more certifications. Certification describes verified training rather than the services a firm chooses to advertise.
How were these Wisconsin firms verified?
Every certification was checked against IICRC's own Certified Firm registry, not against the firm's marketing. 0 of the 30 appear in two independent registries and carry a cross-verified marker. Checked August 14, 2026.