26. Is there a ban on donors to political parties/candidates participating in public tender/procurement processes?

Section 2. Sources of Financing
(1) The political organisations (parties) may be financed from:
1) the membership fees and joining fees;
2) the gifts (donations) from natural persons;
3) the income earned by economic activities of the relevant political organisation (party);
31) the State budget - in cases specified in law;
Law on Financing of Political Organisations (Parties) Article 2.
 

Indirectly as legal entities (corporations) may not donate to political parties and no physical persons can participate in procurement procedures.