We are a team of innovative professionals, independent contractors (for raw material supply) and external consultants (for product analytics and development).

Our objectiv is the realization of a decentralized network for production and sales of TEFA and BABS, in cooperation with agricultural contractors. Our process, products and applications are patent protected.


Stefan Grass, T +41 (0)79 285 99 25, mail

Andreas Graf, T +41 (0)79 775 20 91, mail


Sorba-Absorber GmbH

Solothurnstrasse 68, CH-2504 Biel

Partners / Customers

Sorba works exclusively on a business-to-business basis. The partners for the business development in Switzerland are:

globGlobogal for the distribution of BABS absorption filters. Globogal is a leading supplier of stable equipment and livestock hall air conditioning in Switzerland.


RicoterNEU 4-farbig d-f_cmyk

Ricoter for the blending and distribution of BABS on the Swiss plant substrate market. Ricoter is the leading supplier of vegetable substrates and peat-free substrate blends in Switzerland.


Sorba is looking for additional partners for development of the business outside of  Switzerland. Please contact us for an exchange of information.