| June 2015 | ||
| 08/06/15 | The alliance S.P. (today: S.G.) was founded. | |
Founding members::  Bauservice. | ||
 The alliance reaches a population more than 100. | ||
| August 2015 | ||
| 09/08/15 | The alliance is now known as S.G.. | |
| June 2015 | ||
| 08/06/15 | The alliance S.P. (today: S.G.) was founded. | |
| Founding members:: Bauservice. | ||
| The alliance reaches a population more than 100. | ||
| August 2015 | ||
| 09/08/15 | The alliance is now known as S.G.. | |