About Eminox

About Eminox

Eminox is about making a difference. Together with becoming part of a more environmentally focused manufacturing industry, we strive to improve air quality around the world.

We drive innovation and success to provide sustainable engineered solutions which meet and exceed stringent emissions control demands.

With over 42 years’ experience in the automotive industry, we have the knowledge and expertise to support our customers with our in-house research and development facility.  Therefore, allowing extensive testing of products before final production, consequently saving our customers time and money in the development process.

As keen problem solvers, our expert engineers work in partnership with you to design exhaust aftertreatment systems for bus, truck, rail, marine and non-road mobile machines (NRMM) around the world. They’re able to work to your specifications to meet the standards you need.

All Eminox products are designed in the UK and manufactured in our state-of-the-art facilities.

Our Values

Eminox parent group Hexadex Values with descriptor

What makes us industry leaders

Worldwide facilities

As part of the Hexadex Group, Eminox has access to manufacturing facilities across three continents in seven countries, providing a truly global presence

Family owned

The growth of Eminox is supported by Chairman of Hexadex Group, Will Milles, and son of Eminox founder David Milles. A family business since 1978

Complementary businesses

The group acquires new businesses, which are either complementary to its existing activities, or where it can use its core expertise to add value

Manufacturing excellence

Eminox is the only UK exhaust manufacturing company to hold the CL 1 EN 15085-2 Rail Welding Standard and is IATF 16494 accredited

1,000 staff and counting

The Hexadex Group employs over 1,000 professionals across its five subsidiaries. These include Eminox, Teconnex, Ceramex, Hooton Engineering and CWM Automation

Growing sales

The group is continually growing and in 2020, the net sales of the Hexadex Group was £125 million


We are part of the Hexadex Group

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