Odor Removal in Missouri
57 certified odor removal firms on file in Missouri. Credentials below are verified against IICRC's Certified Firm registry.
Cities with 3+ certified firms
Also served (1–2 firms)
Branson, Columbia, Independence, Kansas City, Saint Charles, Camdenton, Brookline, Ashland, Chesterfield, Carthage, De Soto, Crestwood, Florissant, Foristell, Blue Springs, Bonne Terre, Hillsboro, Grain Valley, Kirksville, Jefferson City, Maryland Heights, Montreal, Osage Beach, Marshall, Rolla, Saint Joseph, Saint Peters, Salem, Seymour, St. Louis, Union, Wentzville
What Missouri odor removal firms are certified in
Certification counts across the 57 Missouri 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 | Missouri firms |
|---|---|---|
| OCT | Odor Control Technician | 57 |
| WRT | Water Damage Restoration Technician | 55 |
| FSRT | Fire and Smoke Damage Restoration Technician | 53 |
| AMRT | Applied Microbial Remediation Technician | 46 |
| ASD | Applied Structural Drying Technician | 45 |
| CCT | Carpet Cleaning Technician | 40 |
55 of these firms hold three or more certifications; 2 appear in two independent registries and carry a cross-verified marker; 22 operate under a national franchise brand, which is separately owned and separately credentialled from the brand itself.
Every Missouri firm we hold a record for, A–Z by city →
Odor Removal in Missouri: common questions
Is odor removal work licensed in Missouri?
No US state licenses odor removal 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 Missouri odor removal firms actually hold?
Across the 57 Missouri firms on file for this work, the most common credentials are OCT (Odor Control Technician) held by 57 firms, WRT (Water Damage Restoration Technician) held by 55 firms, FSRT (Fire and Smoke Damage Restoration Technician) held by 53 firms, AMRT (Applied Microbial Remediation Technician) held by 46 firms. 55 hold three or more certifications. Certification describes verified training rather than the services a firm chooses to advertise.
How were these Missouri firms verified?
Every certification was checked against IICRC's own Certified Firm registry, not against the firm's marketing. 2 of the 57 appear in two independent registries and carry a cross-verified marker. Checked August 14, 2026.
Which Missouri cities have the most odor removal firms?
Saint Louis leads with 4, followed by Springfield (4), Lees Summit (3), Fenton (3). We build a page wherever a city has three or more certified firms; smaller markets are listed below that without their own page.