About us


“A great circle is the shortest distance between two points on a sphere.”

Great Circle Services GmbH is one of the leading aviation safety consulting companies in Switzerland.

Established in 2005 by a dedicated team of airworthiness and flight inspectors and specialists, GCS pioneered many safety initiatives through numerous training courses, audits and consulting projects.

The company is registered in Switzerland and operates worldwide (CHE-112.180.062).

Picture: Team in 2022