The Government is considering a public database which would show who owns, controls and benefits from New Zealand companies, including people based overseas.
It was one of a series of commitments made by New Zealand to combat bribery and corruption at an summit hosted by British Prime Minister David Cameron in London this week.
Police Minister Judith Collins, who attended the summit on behalf of the Prime Minister John Key, said the initiatives would build on the work New Zealand had done in recent years to maintain its reputation as one of the least corrupt countries in the world.
New Zealand's communique from the summit said the Government would explore the establishment "a public register of company beneficial ownership information". The register would show which companies had a record of bribery and corruption charges.
Speaking to Radio New Zealand, Ms Collins said she did not want corrupt money ending up in New Zealand, such as funds stolen from aid programmes.