Is your company a member of a trade association or accident insurance fund and has paid the statutory accident insurance contributions? Then you can prove this with a certificate of non-objection to the main company or contracted companies.
If you take part in a public tender, there are different rules, regulations, deadlines and threshold values that need to be observed depending on the procurement procedure.
If you set up a company in Germany, you must comply with certain regulations and requirements. Here you will find information on your rights and obligations, especially when participating in public tenders.