Leading up to the 1995 campaign in San Diego, Blake asked for Sir Stephen's support. Tindall funded an extra genoa for the Kiwi boat and travelled to San Diego to watch them race. He's been a supporter ever since.
For the Valencia and San Francisco campaigns he had 10,000 flags made and transported to the cup villages. Five thousand flags have gone to Bermuda this time round. And there have been personal cash donations.
"No money has gone from either the Warehouse Group, which includes Noel Leeming, or from any of my businesses," he said.
For Sir Stephen, the cutting-edge technology of Team New Zealand's boat is a perfect fit with his investment company K1W1 that mainly funds innovation science including Rocket Lab. Sir Stephen has been re-investing his Warehouse Group dividends in this company for the past 20 years.
Matteo de Nora has been involved with TNZ's battle for the cup almost as long. He watched Team New Zealand win in San Diego and was involved in a small way back then. But it was while watching the disastrous campaign against Alinghi in 2003 that he became emotionally tied to the Kiwis.
Like the rest of New Zealand he watched in horror as a crew member used a bucket to bail water in one race, the boom broke and then, in race four, the mast.
The on-board microphones caught a frustrated crew member yelling "This f***ing boat!"
De Nora said he knew the Kiwis were better than that. And he knew he could help. He started by paying basic bills just to keep the team running; over the years the help has amounted to much more, including the use of his superyacht Imagine as Team New Zealand's hospitality boat and cargo transporter.
He's also used his influence to persuade a syndicate of wealthy private backers, some New Zealanders, some not, to help out. And, as Team Principal, he does what he's best at - problem solving. When Team NZ's two massive masts were stuck in Sicily in 2007 due to a trucking strike, de Nora and the Imagine crew strapped them to the deck and sailed them to Valencia.
De Nora, like Sir Stephen, is private about money and he downplays his financial contribution.
But Sir Stephen last week acknowledged de Nora's contribution, saying he had been an "unbelievable support" over the past three campaigns.
"We owe Matteo a huge debt of gratitude," he said. "We would not have survived had it not been for him."
Both Sir Stephen and de Nora will be out in the chase boat on Bermuda's Great Sound this morning as Team New Zealand races Oracle. And both will be hoping that soon, they'll have something even better to grin about.