Locations Information

Exceptional customer service and accurate analysis offered at thirteen locations

Rock River Laboratory can be found in several convenient locations across the US and abroad. Exact locations and contact information is provided below. All domestic phone calls are routed to our customer service team at our headquarters laboratory to streamline and ensure consistency of all information. Services can still be conveniently accessed by those outside of our laboratory regions. Simply order materials through our Shipping and Sampling Supplies page and receive free shipping for quick sample submission. 

Regular Hours of Operation

8:00 AM - 4:30 PM

Monday - Friday

Closed Saturday and Sunday

Rock River Laboratory closes to observe the following U.S. holidays: New Year's Day, Memorial Day, Independence Day, Labor Day, Thanksgiving Day and the following Friday, Christmas Eve Day, and Christmas Day

Domestic Locations

International Locations

Watertown, Wisconsin - Headquarters

710 Commerce Dr. (Physical)

PO Box 169 (Mailing)

Watertown, WI 53094

Phone: 920-261-0446

Email: office@rockriverlab.com