About Us

Welcome to Smith River Biologicals!

In 1982, Dr. David and Dr. Elizabeth Roycroft founded Smith River Biologicals to fill a need of high-quality microbiological media in the medical market.  Located in the foothills of Virginia’s Blue Ridge mountains, they serviced many small- and mid-sized hospitals near Roanoke and the surrounding area for several years.  As the markets changed, Smith River Biologicals adapted so that we primarily serve industry, research, and educational facilities, along with wastewater, water treatment plants, and government facilities.

Almost forty years after the start of SRB, we are still proud to produce quality biologicals and prepared media for the laboratory professional.  In 2015, we greatly expanded our production capacity, resulting in the ability to manufacture standard and custom products with batch sizes between 10 plates and 3000 agar plates.  Unlike many prepared media companies, we insist supplying only fresh media by shipping shortly after the date of manufacture.  In most cases, the expiration date of our refrigerated products is three months from the date of manufacture, and the non-refrigerated, including most of our broths, products have a six-month expiration date.  This ensures that the media will be good throughout the entirety of its shelf life.

Our staff commits to timely shipments, guaranteeing a turn-around time of two weeks for orders of 3000 agar plates or fewer, even if we do not currently have the plates in stock.  If the products are in stock, we ship within one business day of the order.  Quality control is performed on products according to the CLSI M22 standards.  For your convenience, certificates of analysis are provided online under the Quality Control menu.

Along with the standard media listed in our catalogue, SRB staff routinely works with many different companies to create custom media.  Whether one needs a different plate/tube size or volume for a current product we offer, or a proprietary formulation, SRB is prepared to meet the need for any non-IVD product.

For nearly four decades we have provided superior products and excellent service to our customers.  Let us know if we can meet any of your needs.


Glenn Roycroft


Smith River Biologicals

9388 Charity Highway, Ferrum, VA 24088


(276)930-2369   Fax: (276)930-3777

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