The sources said the detainees had worked with financial entities tied to the Islamic Republic, including companies linked to the Guards, helping transfer funds on their behalf.
They said companies linked to those arrested were shut down and their offices closed.
UAE authorities also summoned some other money changers and told them to leave the country, the sources said.
The development follows earlier measures targeting Iranian nationals in the UAE. In recent days, some Iranian residents outside the country found their residency visas revoked before returning, preventing re-entry, according to accounts received by Iran International on Saturday.
Several affected individuals said the cancellations were carried out without prior notice. One Iranian resident said that after traveling to India with his family following the outbreak of war, he discovered his residency had been revoked, while his non-Iranian family members were still allowed to return to the UAE.
Earlier reports had also pointed to the cancellation of tourist visas for Iranian nationals traveling to the country.