In an address at today's anti-Government protest at Parliament in Wellington, Tamaki said three parties had joined the new party - The New Nation Party, Vision NZ and the Outdoors and Freedom Party. One of the parties was based in London and two had signed a memorandum of understanding.
Tamaki, who said he was not running for political office, encouraged other parties to join the "umbrella of hope".
He cited the Democracy NZ party and the New Conservative Party, whose co-leader Ted Johnston is contesting the Auckland mayoralty at October's local body elections.
The new parties would help ensure the lockdowns and division from vaccinations would never happen again, he said.
Vision NZ was set up by the Tamakis and contested the 2020 general elections where it got just 0.1 percent of the vote.
The New Nation Party believes in protecting the rights and freedoms of all New Zealanders and says New Zealand is "blindly handcuffed" to the United Nations and should leave the global organisation.
In a statement, party leader Michael Jacomb said the umbrella party would ensure a formidable alternative force was available to serve all the people of New Zealand at next year's general election.
"I'm proud that a large organisation like The (Tamakis') Freedom and Rights Coalition recognises that the policies, pledges, and principles of the NNP are the right ones to free New Zealanders from the undemocratic, centralised control currently imposed by this terrible government."
Jacomb said his party would work with the other parties to ensure that disenfranchised individuals, who are so desperate for a political home, had a single, clear alternative to vote for in the next general election.
Party secretary Melissa O'Hagan said: "For so long now the general public have been calling for the smaller parties to come together and I am proud that the NNP has been a major driver in achieving this call for unity."
Sue Grey, a self-employed lawyer from Nelson and co-leader of the NZ Outdoors and Freedom Party, moved to Tauranga for the byelection where she came fourth with 1030 votes.
It started out as the NZ Outdoors Party, but changed its name in April this year to the NZ Outdoors and Freedom Party after becoming active during the nationwide lockdown.
Supporters of the party have claimed the September 11 attacks were a false flag operation, promoted flat earth theories and denounced "mind control" and 5G technology.