In 2015, PROHIT started cooperating with foreign clients who were purchasing the receivables of legal entities in Slovenia. PROHIT now cooperates with various foreign funds which purchase unpaid receivables from both legal entities and natural persons, primarily in the banking market. For this purpose, additional software applications have been developed, as the requirements of foreign companies for digital collaboration are at a significantly higher level. From abroad, we also brought in models for optimal realization of security interest in cases involving collateral security. However, such factoring does not involve individual cases, but rather packages involving large numbers of claims and consequently higher sums.