A cherry picker, watches and cars were among the items seized by the Criminal Assets Bureau (CAB) after search operations were carried out in Co Longford.
CAB officers also seized €10,000 in cash and froze more than €78,000 in bank accounts.
During the search of 12 properties, CAB seized a 212 Ford Focus worth €26,400, a 172 Nissan Navara worth €27,000, three Rolex watches, a cherry picker, financial documents and electronic devices.
The operation was carried out with the assistance of the Emergency Response Unit, Regional Armed Support Unit, local gardaí, the Stolen Motor Vehicle Investigation Unit and the Customs Dog Unit.
It was conducted as part of ongoing CAB investigation into assets linked to a significant midlands-based organised crime gang, which authorities believe are involved in the sale and supply of drugs and vehicle crime.