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Welcome to the Organic Materials Review Institute

OMRI supports organic integrity by developing clear information and guidance about materials, so that producers know which products are appropriate for organic operations. OMRI is a 501(c)(3) nonprofit organization that provides an independent review of products, such as fertilizers, pest controls, livestock health care products, and numerous other inputs that are intended for use in certified organic production and processing. When companies apply, OMRI reviews their products against the organic standards. Acceptable products are OMRI Listed® and appear on the OMRI Products Lists©. OMRI also provides technical support and training for professionals in the organic industry.


One search with complete information about materials and products for organic use.

Get Listed

Verify your credibility and help organic customers choose your products with confidence.


Get essential technical support with your OMRI subscription - a cost effective tool.


OMRI relies on donations to help support integrity and expert analysis for the organic industry.

OMRI Canada

OMRI is helping grow the organic industry in Canada with the OMRI Canada Products List©.

What We Do

How OMRI's expertise and professional services work to support organic integrity.

(January 13, 2022) Leslie Touzeau, of Quality Certification Services (QCS), has joined OMRI as a member of the organization’s Board of Directors...

(May 20, 2021) Three new members have recently joined the OMRI Board of Directors: Emily Newman of the Rodale Institute, Hannah Smith-Brubaker of...

(November 23, 2020) The Organic Materials Review Institute has welcomed three new members to its Board of Directors in recent months.