Management

A team dedicated to our customers’ success

The members of our leadership team combine decades of experience in various sectors within the chemical industry. Together, they make every effort to ensure our customers receive the highest possible level of quality and service.

Dr. Uwe Brunk

PRESIDENT, WEYLCHEM GROUP OF COMPANIES & MANAGING DIRECTOR WEYLCHEM HOLDING SA

With 30+ years of experience, Dr. Brunk has worked in production, strategic planning, marketing and sales. He held senior leadership positions at Bayer Chemicals, CABB Group and Saltigo before joining WeylChem in 2018.

Antti Koivisto

MANAGING DIRECTOR, WEYLCHEM INTERNATIONAL GMBH & HEAD OF SALES AND MARKETING, AI&R

Mr. Koivisto started his chemical career in the UK working for BASF where he held various sales and marketing management roles. Before joining the WeylChem Group of Companies in 2017, he led Product Management in the EMEA region at Orica.

Dr. Andreas Maier

MANAGING DIRECTOR, WEYLCHEM PERFORMANCE PRODUCTS GMBH

Dr. Maier started his career working for Hoechst and Clariant in the fine chemicals business, which became part of WeylChem in 2007. Prior to his current position, he worked across R&D, Operations, Sales and Business Management and also leads the company's Care Chemicals Business.

Dr. Steffen Sonnenberg

MANAGING DIRECTOR, OF WEYLCHEM INNOTEC GMBH

With a wealth of experience in various areas of the custom manufacturing industry, including fine chemicals, nutrition, feed, and pharmaceutical ingredients, Dr. Sonnenberg has previously held leadership roles at Symrise, Bell, Sensient and Minascent.

Alix Deschamps

MANAGING DIRECTOR, WEYLCHEM LAMOTTE S.A.S. AND WEYLCHEM BILBAO S.L.U.

Alix Deschamps has around 25 years of international experience in the petrochemical and chemical industry, including positions as site manager and operations manager with a strong focus on HS&E. Before joining WeylChem in January 2021, he was Group Manufacturing Excellence Director at Solvay SA, based in Brussels, Belgium.

Dr. Till Riehm

MANAGING DIRECTOR ALLESSA GMBH, ALLESSA PRODUKTION GMBH, WEYLCHEM HÖCHST GMBH, CCF ALLESSA CHEMIEPARK FRANKFURT GMBH

Dr. Riehm started his career in the ICI Group in 2017. He held several commercial and business related functions within the group. in 2018, he took over the role as Managing Director at Corden BioChem GmbH and laid the ground for a new start as supplier to the food and feed market. In October 2020 he moved to the US and joined Corden Pharma Boulder as Director of Peptides. In 2022 he was appointed Managing Director of Allessa GmbH and WeylChem Höchst GmbH.

Mark Matheny

MANAGING DIRECTOR, WEYLCHEM US INC.

With extensive experience in leadership roles, Mr. Matheny worked for Georgia-Pacific Packaging Division in several finance roles and as General Manager of a corrugated box manufacturing plant. He also spent 10 years as Vice President Strategic Planning and Analysis for Novolex.