About Us

Small Business Approach; Big Business Expertise

In 1985, Donald and Margaret Riesenberg founded Brookside Agra in their home in Highland, IL. With five generations of farming and feed manufacturing expertise, Brookside Agra is still family owned and operated and boasts an impressive lineup of industry experts who continue to research and develop new products. Through the years, Brookside Agra’s priority has remained the same — to develop all-natural products that successfully meet customer needs and requests, using in-vivo and in-vitro testing methods as its foundation for product development. Brookside Agra products are used in more than 96 countries around the world for a variety of global industries including:

  • Agriculture
  • Animal Farming
  • Meat/Food Processing
  • Restaurant/Food Production
  • Institution/Facility Maintenance
  • Wastewater Treatment/Sanitation
  • Landscaping/Turf Maintenance
  • Fire and Smoke Remediation

Headquartered in O’Fallon, Illinois, Brookside Agra provides its customers with guaranteed quality, research-proven products at market competitive prices. Our cost-effective operating structure and streamlined staff allows us to be extremely flexible and competitive in today’s fast moving market.

Quality Products

All of our products surpass the highest quality standards before leaving our plants and are manufactured containing high concentrations of active, all-natural ingredients with limited fillers and carriers. Everything that goes into the final product is tested, including the shipping containers.

Personal Service

Our streamlined, dedicated staff is just a phone call, fax or email away. We work one-on-one with our customers through every phase of the product process from purchase decision through application. If we don’t have the right product to suit your specific needs, we will custom formulate one for you.

Manufacturing Expertise

Using the latest technology and manufacturing standards available, our state-of-the-art plants produce high-quality products with no shortcuts in the processes tolerated. We’ll keep working until you are 100% satisfied.


We support a profitable bottom-line for all our customers and take pride in building trustworthy relationships with everyone we work with. By working hard to keep our overhead costs low, we strive to provide customers with the highest-quality, research-proven products at the lowest cost possible.