Allessa
Allessa

Allessa GmbH

Allessa is one of the most experienced and innovative European fine chemical manufacturers. Our offering spans from proprietary products to custom manufacturing with leading positions in pigments, ligands, cosmetic ingredients, polymers and stabilizers.

From first synthesis idea to the largest commercial volumes, we develop and produce either your or our own proprietary chemistry. Operational excellence enables an attractive lifecycle management for continuous commercial success.

 

 

Important markets:  

  • Ligands and Catalysts 

  • Pigments and Dyes 

  • Cosmetic ingredients 

  • Agrochemical compounds 

  • Functional polymers 

  • Stabilizer 

We have a broad variety of technologies and complex synthetic capabilities, paired with more than 150 years of experience in organic chemistry and a strong heritage in fine and unique performance chemicals. 

History 

1870

Birth of Frankfurter Anilinfabrik von Gans und Leonhardt in Fechenheim 

1879

The Fechenheim site growth to the world´s largest Azo dye production

1925

Incorporation of I.G. Farben 

1952

Establishment of Cassella Farbwerke Mainkur AG 

1996

Acquisition by Hoechst AG 

1997

Acquisition of fine chemical business by Clariant AG 

2001

Spin off AllessaChemie GmbH 

2012

Integration of Allessa Syntec GmbH (former central pilot plants of Hoechst AG) into AllessaChemie

2013

Acquired by ICIG, integration into WeylChem Group of Companies and name change to Allessa GmbH

 

Industrial park

Our industrial park with a focus on chemicals hosts more than 15 companies with a wide range of activities from chemical production to life science tools, pharmaceutical research and sustainable power generation. We offer a fully integrated site operating 24/7 with its own energy generation and distribution, wastewater treatment plant, own professional fire brigade, as well as electrical and mechanical workshops. 

Capabilities

1 multi-purpose pilot plant for smaller scale (50 kg to 1 ton per year), reactors up to 1 m3 volume.
1 multi-purpose pilot plant for smaller scale (50 kg to 1 ton per year), reactors up to 1 m3 volume.
4 large-scale multipurpose plants for commercial volumes from 10 to 10.000 tons per year and product; reactor sizes up to 30 m3 volume

Expertise

Services

Certificates

ISO 9001
ISO 14001
ISO 50001
Ecovadis Gold Medal
Fully committed to follow Voluntary Guidelines of EFCG / CEFIC

Location

Allessa GmbH

Alt-Fechenheim 34 60386 Frankfurt
+49 69 4109-01

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