Documents and computers seized by detectives targeting members of feuding gangs are being examined by the Criminal Assets Bureau.
Some 38,000 euro was recovered as 12 raids were carried out in private residences, commercial premises and professional offices across the country.
The searches, which targeted individuals involved in the Limerick gang feuds, were conducted in counties Dublin, Tipperary, Offaly and Kerry on Wednesday.
No arrests were made and investigations are ongoing.
Members of the Criminal Assets Bureau were backed by detectives from Birr, Roscrea, Nenagh and Tipperary Town Garda Stations.
The Regional Support Unit based in Mullingar Garda Station, Garda Dog Unit and members of the Divisional Crime Task Force DMR West were also involved.
A Garda spokesman said: "During the course of the searches 38,000 euro in cash was seized along with a large amount of documentary evidence and computers."