The accumulated expertise reflects over 40 years of continuous development. It began in 1985 at Sulzer Burckhardt, where the Liquid Ring Machines Department produced vacuum pumps for the local Swiss chemical and pharmaceutical industries in Basel. Soon after, production expanded worldwide through the Sulzer Burckhardt sales organization.

In 2000, Sulzer Burckhardt closed its workshop and office in Basel. During the subsequent reorganization, the Liquid Ring Vacuum Pump Department was sold to the newly founded company nsb gas processing. The future knowledge carrier of nsb gas consulting was then CEO of nsb gas processing, applying his experience gained at Sulzer Burckhardt. nsb gas processing continued the vacuum business and introduced the SB compressor series to the market in 2006.

The company nsb gas processing developed successfully. To enable further growth and strengthen its resources, it was sold to Pompetravaini in 2012 and renamed Pompetravaini-nsb.

In 2018, Pompetravaini-nsb was liquidated. Busch acquired the assets, employed the experienced team, and continued operations under the name Busch-nsb.

After retirement, the last knowledge carrier founded nsb gas consulting to ensure continuous support for nsb products. As a result, the complete historical know-how remains available through nsb gas consulting on demand.