For a better experience of our website please update you web browser from IE11 to Microsoft Edge or an alternative modern browser such as Google Chrome. Thank you.


Primopus combines ‘Prim’ (leading) and ‘Opus’ (variety) we promise quality and consistency in a symphony of pharma service provision.

Founded in 2020, Primopus AG (formerly Escientia Switzerland AG) is a CMO/CDMO and producer of complex RSM’s, GMP intermediates and API’s. We operate out of a former Novartis API plant near Basel, Switzerland. It is equipped with over 250m3 reactor capacity in a 17,000m2 plant with ample capacity to make key API ingredients. The plant has made innovator intermediates and API’s for over 30 years with an outstanding track record.

We offer fully integrated small molecule supply from our Swiss site with backward integration through 3 large sites of our parent company, Deccan Fine Chemicals, in India. Responding to the post-Covid trend to de-risk and diversify supply chain, we offer a hybrid model and the best of several worlds at a competitive price.

We rely on a large and increasing PR&D and scale-up team at our Goa, India site and are establishing an R&D capability at our Swiss site.

The plant in Switzerland is undergoing major upgrades and modernization including full DCS automation and a digital GMP-compliant document management systems.

Sustainability is at the core of how we conduct all of our operations. Our Swiss site will be net zero carbon by 2028 for all utilities and thereafter we will meet the COP26 goals of net zero carbon by 2050.

We want to do things fundamentally right from the bottom up in all aspects of our business operations. This covers, EHS, GMP and global compliance to the highest standards because it is the right thing to do.

Primopus encourages all to embrace exceptional life

The end goal of our customers and all of our efforts is to improve the lives of many people around the world. We encourage all our staff, suppliers and customers to value life above everything. We then extend this to the well-being of the planet and the rich biodiversity contained within it.

In all aspects of human life, we should consider the necessary balance required to not damage our planet or the environment with any of our activities.