Weta Digital is by far the largest member of the group, employing around 1600 people and responsible for 41 per cent of all subsidies paid out under the scheme.
Based on the 20 per cent subsidy rate available for special-effects work, and annualising MBIE's numbers, it appears Weta Digital effectively receives $38.6m in annual subsidies - around the same as the budget allocated to RNZ - to generate revenues of around $200m. The figures also suggest each job at the effects house is underpinned by more than $25,000 in annual taxpayer support.
ACT Party MP David Seymour said Weta should take on a new production: "The Emperor's New Clothes".
"All along we've been told there's a multiplier and the taxpayer is getting a massive boost of a small investment. Now it looks like without taxpayer subsidies, none of this would exist. There's a general lesson here that when politicians try to go into business, businesspeople win and taxpayers lose," he said.
Request for comment to Jackson, and to Weta Digital, went unacknowledged this week.
Jackson and his companies have not responded to Herald queries since August 2018.
Economic development minister Phil Twyford, when asked about the concentrated benefits of the scheme in Miramar and with Jackson, said "I don't really have a problem with it".
"The subsidy doesn't go directly to Weta Digital. And Weta Digital have been very successful, and they provide what is obviously a first-rate and internationally-competitive service - so good on them for that," he said.
He said the concentration of the Wellington film industry was due to "peculiar circumstances that grew around Weta and Peter Jackson's companies" and he was optimistic recent productions - notably Amazon Studios' Lord of the Rings television series - were seeing the industry grow beyond Miramar.
The subsidy scheme is an evolution of incentives first forged more than two decades ago to enable domestic production of Jackson's Lord of the Rings trilogy. Due to international competition they have steadily increased in scale and size and today provides studios cash rebates of up to 25 per cent of a production's budget.
Last year the scheme saw $105m paid out to largely Hollywood producers - a figure comparable to Tourism New Zealand's annual budget.
The Herald first requested the breakdown of subsidy payments by recipient in July 2018, only for MBIE to reject the request two months later after receiving complaints from Weta that the information was commercially sensitive.
The matter was subsequently referred as a formal complaint by the Herald to Ombudsman Peter Boshier. A statement from Boshier's office said that in late 2019, after consulting MBIE and Weta, "ultimately he was not persuaded" that the information should be withheld.
Seymour was critical of Weta in seeking to prevent the release of the information: "There's a real irony in that they purport to be a private businesss - and expect all the privacy of private businesses - but also expect to receive public funds," he said.
"Either they're a private business, or they're substantially funded by the public sector and liable for public transparency."
Twyford defended his officials' handling of the matter, despite his Labour Party campaigning during the 2017 election that their victory would deliver the "most open, most transparent" government.
"I think MBIE acted in good faith, and in the end it's all been worked out through the Ombudsman's office," he said.