Continuum of


A main actor in pharmaceutical synthesis and specialty ingredients

A leader in pharmaceutical synthesis

Offering a wide range of technologies, Seqens provide its clients custom manufacturing services as well as a large portfolio of APIs & intermediates. We offer our customers with an access to our network of 3 R&D centers, 4 pilot units and 12 cGMP manufacturing sites and 6 cGMP multi-purposes sites to ensure a smooth in-house scale-up from early clinical phases to the commercial stage.


A cross-functional knowledge in specialty ingredients

Seqens offers a wide continuum of technologies covering small-scale to large-scale chemical synthesis and distillation including distinctive reactions such as Fiedel-Craft, Grignard and low-metal capabilities. This industrial network is supported by focused R&D capabilities. Seqens offers high purity oxygenated solvents leveraging its back-integrationl and a large range of Minerals Specialties produced.


A large expertise
in cosmetics

Seqens has built a wide, comprehensive and cutting edge offer for the cosmetic market sourced in pharmaceutics and fine chemistry know-hows.


A continuum of technologies

Seqens operates 24 industrial plants and 3 R&D centers in Europe, North America and Asia.

More than 300 scientists, engineers and experts develop tailor-made solutions for its customers and ensure that products are successfully transferred into production.



Products & Technologies

Bicarbonate sodium used in dialysis

Interview of Elsa Prous, Market Manager and Global Key Account Manager & Sophie Mouzon, Development Quality & Customer Assistance Manager of…
Products & Technologies

Seqens Cosmetics unveils her new branding, 2 new products, and 1 technology at In Cosmetics Paris 2019.

New products In the active field, the star is Glycuron™ 2.78, a high molecular weight polysaccharide able to enhance emotional beauty…

The Energy Transition of the site in La Madeleine has taken a decisive step

Discover more about the site Seqens Mineral Specialties of La Madeleine in Laneuveville-devant-Nancy and its energy transition.

Seqens global presence

Use interactive map



Scientists, experts and engineers


Manufacturing sites


Customers in more than 80 countries