Public funds are told to be numerous - only in Germany there should be more than 700 different sources (conservative estimation) where enterprises could get such "gifts in money" (or equivalents).
The tools are different - one could get part-financing, or cheapens loans, or investment in an associate, or public guarantees or maybe also a mix of such instruments.
And - to be clear - the rules are made by whom who pays. So please be aware of certain restrictions and get ready for paper-warfare!
As it is not possible here, sadly, to provide individual consulting maybe we could be of help with some links for your convenience.
KfW - Germany's big funding bank
TBI Technologie-Beratungs-Institut GmbH
LFI Landesförderinstitut Mecklenburg-Vorpommern
And one more hint: Go personally in contact with the officer responsible for the programme you have chosen!
IT- und Management-Beratung
Am Mühlenheck 16
18528 Bergen auf Rügen
Telefon: +49 3838 4043011