Pushing Precision. Since 1924.

For nearly 100 years, Sunnen has built a global business around delivering the highest levels of precision to our customers. Combining a robust distribution network with industry-leading technology, Sunnen integrates bore creation, sizing and finishing into one turnkey solution. Together, we’ll achieve extraordinary results.

An American Saga

In 1923, Joe Sunnen knew he was onto something. He was 22 years old and had just patented his first product, a valve lifter tool he designed while working in his brother’s auto garage. All he needed was a way to build it and a place to sell it.

He would find both in St. Louis, Missouri. Joe moved to the city with his wife, Cornelia, in 1924. Lacking the funds to open a storefront of his own, Joe got creative. He converted his 1916 Hupmobile into a camper and took his business on the road. As he visited garages and job shops across the region, Joe’s tool sold itself.

The success of Joe’s first tool spurred him to design another and another after that. In 1928, he designed the first manual cylinder hone, firmly planting Sunnen’s roots in precision manufacturing. A modern version of the product is still found in tool rooms around the world.

Building a Legacy

For the Future

To this day, Joe’s story of commitment and resilience reminds us of how far we’ve come and inspires us to push the boundaries of what’s possible. What began in the back of a Hubmobile has grown into a massive operation bringing innovative machinery and advanced tooling to some of the world’s greatest manufacturers. We’re excited to carry the Sunnen legacy forward.

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Industries We Serve

Whether you’re manufacturing multimillion dollar aerospace equipment or refinishing a single car engine, the smallest details make all the difference. Sunnen works across the most demanding industries to deliver performance where it counts.

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Global Presence

Our roots are in the US, but our reach extends around the world. Manufacturers in every corner of the globe associate the Sunnen name with exceptional quality. Our regional facilities are centers of production, service and innovation as we connect with new customers and solve new challenges.

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World Headquarters
St. Louis, MO – USA
Phone: (314) 781-2100 Fax: (314) 781-2268 Toll Free: (800) 325-3670 Email : sunnen@sunnen.com www.sunnen.com
Sunnen Mexico Phone: (314) 781-2100 Fax: (314) 781-2268 Toll Free: (800) 325-3670 Email : sunnen@sunnen.com www.sunnen.com
Czech Republic – Sunnen s.r.o. Phone: +420 383 376 317 Fax: +420 383 376 316 Email : sunnen@sunnen.cz www.sunnen.cz
France – Sunnen SAS Phone: +33 169 30 00 00 Fax: +33 169 30 11 11 Email : info@sunnen.fr www.sunnen.fr
India – Sunnen India Pvt. Ltd. Phone: +91 223 913 6055 Fax: +91 223 913 6056 Email : sales@sunnen.in www.sunnen.in
Italy – Sunnen Italia S.r.l. Phone: +39 02 383 417 1 Fax: +39 02 383 417 50 Email : sunnen@sunnenitalia.com www.sunnenitalia.com
Poland – Sunnen Polska Sp. z o.o. Phone: +48 22 814 34 29 Fax: +48 22 814 34 28 Email : sunnen@sunnen.pl www.sunnen.pl
Russia – Sunnen RUS Phone: +7 495 258 43 43 Fax: +7 495 258 91 75 Email : sunnen@sunnen-russia.ru www.sunnen.ru
Switzerland – Sunnen AG Phone: +41 71 649 33 33 Email : sales@sunnen.eu www.sunnen.eu
UK – Sunnen Products Ltd. Phone: +44 1442 39 39 39 Fax: +44 1442 39 12 12 Email : hemel@sunnen.co.uk
Austria – Sunnen Austria GmbH Phone: +43 (0) 5576 74194 Fax: +43 (0) 5576 74196 Email : sales@sunnen.eu www.sunnen.at
Belgium – Sunnen Benelux BVBA Phone: +32 38 80 2800 Fax: +32 38 44 3901 Email : info@sunnen.be www.sunnen.be
Brazil – Sunnen do Brasil LTDA. Phone: +55 11 4368-4900 Email : sunnen@sunnen.com.br www.sunnen.com.br
Canada – Sunnen Products Company Phone: 844-356-0006 Email : canadasales@sunnen.com www.sunnen.com/canada
China – Shanghai Sunnen Mechanical Co. Ltd. Phone: +86 21 5813 3990 Fax: +86 21 5813 2299 Email : shsunnen@sunnensh.com www.sunnensh.com

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