Rich Lister Harry Triguboff is upping his game, with his company Meriton becoming the largest developer-builder so far to get certified under the new NSW-based ratings tool for players across the construction sector.

Meriton has followed the first handful of builders and developers into the iCIRT scheme developed by data provider Equifax to assess the resilience and reliability of companies and received a 4.5 star rating out of a possible 5-star maximum.