BUSS AG, LIST Technology AG and BBA Innova AG unite as BUSSLIST Group
Three specialized process technology companies form one group – covering the full range of high-performance process engineering from reaction to compounding to solidification.
Pratteln/Arisdorf/Strengelbach, April 10, 2026. BUSS AG, LIST Technology AG and BBA Innova AG today formally unite under a new group name: BUSSLIST Group. The three Swiss-based companies, each a specialist in demanding process technology applications, now operate under one leadership and one strategic commitment – while maintaining their established technology brands and customer relationships.
BUSSLIST Group brings together three complementary process technologies:
- the LIST KneaderReactor for continuous high-viscosity processing, reactions, devolatilization, drying, crystallization, desublimation and dissolving.;
- the BUSS Co-Kneader for continuous temperature- and shear-sensitive compounding of demanding materials;
- and BBA Cooling Technology for the precise solidification, breaking and finishing of viscous materials.
The three technologies cover critical and adjacent steps in process engineering across the chemical, polymer, fiber, food and life science industries.
The group is part of the Process Solutions division of Jakob Müller Holding AG, a Swiss family-owned industrial group.
Three technologies. One process understanding.
What unites the three companies is not a production line, but a shared foundation: decades of deep process knowledge, built through thousands of realized production lines across the world’s most demanding industries. BUSSLIST Group positions itself as the partner for customers who require process technology that sets new standards – from the first feasibility test to industrial‑scale production.
With more than 3,500 installed BUSS Ko-Kneader systems, a vast LIST KneaderReactor installed base across specialty chemical, fiber and food applications, and BBA cooling systems in use across powder coating, pharma and life science production, BUSSLIST Group combines proven technology with a broad process engineering footprint.
All existing business relationships continue under the known legal entities. Legal consolidation will be completed over the coming months, with direct outreach to affected customers and partners where relevant.
Quotes from our managementOne process understanding.
“BUSSLIST Group is not the result of restructuring. It represents something much bigger: three companies that have the same mission, passion and skills to deliver excellent process solutions, joining under one roof with the clear commitment to become an even better partner to our customers. The three technologies together allow us to grow along the production chain within our industries and the enhanced global setup puts us in an even stronger position to support our customers locally in all major markets. This is who we are: your global partner for process machines that push the boundaries of what engineering can do.”
Dr. Philip Nising, CEO BUSSLIST Group
“LIST has always operated where processes reach their limits: in high-viscosity applications, solvent-free environments, and reactions that demand precision over speed. As part of BUSSLIST Group, we bring that depth of process knowledge into a broader context. For our customers, that means access to a wider range of process competence without losing the specialist they already trust.”
Karsten Güdemann, COO BUSSLIST Group
“BUSSLIST Group represents exactly the kind of long-term industrial thinking that defines Jakob Müller Holding. We invest in technology leadership and in the people who carry it – across generations. This group is built to grow, to lead, and to serve customers who demand the best in process engineering for decades to come.”
Stephan Bühler, Owner of Jakob Müller Holding AG
About BUSSLIST Group
BUSSLIST Group is a Swiss-based group of specialized process technology companies, uniting LIST Technology AG (KneaderReactor Technology), BUSS AG (Co-Kneader Technology) and BBA Innova AG (Cooling Technology). The group serves customers in the chemical, polymer, fiber, food, pharma and life science industries worldwide.
BUSSLIST Group is part of the Process Solutions division of Jakob Müller Holding AG.
