Welcome to ALTANA in the United Kingdom

Impressions from our location in the UK

Impressions from our location in the UK

Who are we?

BYK Additives Limited is part of the BYK Division and is the only fully configured ALTANA entity in the UK, encompassing all functions from sales to production and hosting employees from all of the four divisions of ALTANA.

With a legacy dating back to 1923, the site has been a cornerstone of inorganic chemical production and became part of the BYK Division of ALTANA AG in 2013.

We are a global leader in delivering high-performance additives for a wide range of applications—including paper, catalysts, personal care, cleaning agents, and specialty coatings. These products serve diverse industries such as paints and coatings, plastics, and oil and gas. We operate on a global scale while maintaining a strong local development focus.

Our Widnes site, located in the North West of England, is a centre of excellence in specialty chemical manufacturing. We supply natural and synthetic clay based additives to key markets including coatings, consumer care and other specialty sectors.

Today, approximately 110 employees work at our Widnes facility. We are committed to continuous investment in Research and Development, driving innovation and expanding the potential applications of our products. The site proudly holds certifications for ISO 9001 (Quality Management), ISO 14001 (Environmental Management), and ISO 45001 (Occupational Health and Safety) and achieved the Gold certification for ECOVADIS , reflecting our dedication to excellence and sustainability.

Our Voices

Marilyn Sedman, HR Advisor

"I am proud to say that I work for BYK Additives. Being part of a team that values it’s people, supports growth, and strives for excellence makes my work both meaningful and rewarding. I appreciate the trust placed in me and the supportive environment that enables me to contribute my best every day."

Luis Farinha, Site Operations Manager

"Joining BYK wasn’t just the start of a job, it was the beginning of a journey filled with growth, innovation, and meaningful impact. I began my career 27 years ago as a post-graduate chemical engineer, eager to turn theory into practice. Over time, I discovered that BYK is a place rich with opportunities to tackle complex challenges, drive sustainability, and improve lives around the world. ...

... Today, as an Operations Manager, I have the privilege of leading teams that keep critical processes running safely, efficiently, and responsibly. Every day brings new opportunities to innovate and make a real difference."

Mark Higson, Purchasing and Supply Chain Manager

"BYK offer a welcoming and refreshing approach to business, Great onboarding processes and competitive compensation packages.

I personally have worked here for 41 years, joining as an apprentice in 1985. Throughout those years I’ve had a positive experience working here, colleagues and management alike all work hard but still maintain that friendly working environment. ...

... Global collaboration across many divisions of Altana create a feeling of belonging to a greater community.

Life work balance can be achieved by working in a good company like ours."

Oscar Kelly, Head of Research and Development

"I started working at BYK as a development chemist in 2013. In the 12 years since, I have had the opportunity to work across a broad range of chemical and commercial disciplines, learning all the time. BYK has given me the opportunity to build up a global network of inspirational scientists and business leaders, as well as provided me with the leadership training needed to succeed as an innovation manager at one of the most highly regarded speciality chemical companies in the World."

Our Benefits

Benefits by location

Situated on the outskirts of Manchester and Liverpool with good public transport links. Free parking onsite (including EV charging points).

Health and wellbeing

We offer a range of enhanced health and wellbeing benefits designed to support our team every day. This includes access to confidential 24/7 assistance through our Employee Assistance Program, Occupational Health support, and a Health Cash Plan to help with routine medical expenses. Together, these services promote a healthier, more supported workplace where we can all thrive.

Enhanced Pension Contributions and Retirement Support

Beyond statutory requirements, we offer additional pension contributions as a recognition of service and dedication. This enhanced support reflects our commitment to the long-term financial wellbeing and our shared goal of helping our colleagues build a secure and rewarding retirement.

Training and Education

We’re committed to our colleagues continuous growth and development. Through a combination of on-the-job training, funded external courses, and leadership development programs, we provide meaningful opportunities to build skills, expand knowledge, and advance your career at every stage.

Inclusive and engaged culture

We adopt an inclusive, collaborative environment where every voice matters. Guided by our “One Site, One Team” philosophy, we build trust, respect, and teamwork into everything we do—empowering individuals, strengthening our collective impact, and creating a workplace where everyone can thrive together.

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