Liquidity (how well do the businesses stand)? Seriousness (parallel companies, rebrandings, management switched between family members)? History of legal disputes? Can you be given references to contact?
The managing directors of GU2 founded the company 25 years ago and have remained in control unchanged. No rebrandings etc. have occurred.
Several experts have since reported almost exclusively positive feedback about the construction process.
However, liquidity is an important point:
How did you check this or who did you have do it?
--> We looked at the financial statements on the Bundesanzeiger, but especially with small companies that is more like "fishing in murky waters".