National Warranty Company (NWC) was established in 1999 and specialises in the provision and administration of extended warra ... nty products which are sold through selected Motor Dealers, Agents and Brokers Australia-wide. NWC prides itself on providing the highest quality warranty products and after sales customer service to provide customers with peace of mind in the event of unexpected mechanical faults. National Warranty Company is the trading name of Davantage Group Pty Ltd (ABN 35 161 967 166) (AFSL 438157), part of the Presidian group of companies. read more