Contact Great Midwest Laboratories
We welcome inquiries from new and existing clients.
Client Service
Great Midwest Laboratories
2329 Chaffee Dr
St. Louis, MO 63146
Telephone: (314) 918-5494
Email: [email protected]
Monday–Friday
8:00 a.m. to 5:00 p.m. Central Time
Directions & Sample Deliveries
Please call before visiting or delivering samples. A laboratory representative will provide the appropriate delivery location, receiving hours, and any special handling instructions for your project.