McDonald's is the latest big-name brand to veto the new youth wage.
Restaurant Brands-owned KFC, Starbucks and Pizza Hut, The Warehouse, Farmers, Kmart, Bunnings and Countdown have already rejected the new $11 hourly rate.
The businesses will instead pay at least the increased current adult minimum wage of $13.75.
Labour Minister Simon Bridges would not comment on the decision by individual companies to ignore the youth wage but said the new policy was voluntary.
"That some large businesses haven't taken it up doesn't change any of the rationale for this and the fact that many other businesses will chose to take up the starting out wage.