Become part of the OU Kosher
family of companies

Certifying Over 1 Million Products Worldwide!
Schedule a meeting with an OU Kosher representative

Just released – download the new OU Kosher App and try out the new smart product search and other new features

Join the OU Kosher family, certifying over 1.3M+ products globally since 1923

Why Choose the OU

Reach more consumers worldwide
For 100 years the OU symbol has been the most recognized kosher mark.  Its promoted through our global programs, social media, apps, and websites.

Get help navigating the supply chain
Access manufacturers worldwide through the largest kosher ingredients database and get help finding approved ingredients and co-packers

Build trust with retailers and brands
Major retailers and global food companies rely on the OU symbol, backed by our detailed review of ingredients, processes, and labels.


More on Why the OU

What is Kosher?

You may already be familiar with some of the more well-known requirements, but you may be surprised at the extent of some regulations. Kosher is a comprehensive system of food standards rooted in Jewish law that governs not only ingredients, but also how food is prepared, processed, and handled.

Under trusted certification such as OU Kosher, every step of production is carefully reviewed, from raw materials to equipment and facilities. This level of oversight helps ensure consistency, integrity, and trust, giving consumers greater confidence in the products they choose.


Learn the Requirements

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Just released

Download the new OU Kosher App and try out the new smart product search and other new features