Mészáros's business partner's company also supported Megafon with hundreds of millions.

Under the Orbán government, Szíjj László's construction company, Vakond Via Kft., significantly funded the Megafon organization, contributing 300 million HUF over two years. This financial support is linked to the Fidesz party's campaigns. Szíjj's Duna Group has become a major player in Hungary's construction sector, winning numerous state contracts. Transparency International criticized the lack of thorough investigations into potential illegal party financing related to Megafon. Despite allegations, the State Audit Office found no irregularities. Szíjj and Mészáros Lőrinc, long-time business partners, have collaborated on various projects, including a controversial highway concession. Their connections extend to luxury assets, including shared ownership of a yacht.