The Balnaves Foundation, a philanthropic organisation supporting the campaign to establish an Indigenous Voice to Parliament, has provided support to at least one Australian newspaper's coverage of Indigenous affairs.

The Foundation, which provides funding to the Guardian Australia, is part of a group of philanthropists who have collectively pledged $17 million in support to help fund the campaign for an Indigenous Voice to parliament.

The Guardian website has a number of news articles that indicate they were supported by the Foundation with the inclusion of the Foundation's logo and a link to an explanation of the Foundation's support.

"A client whose branding appears on editorial content may have a role in suggesting what kind of topics are covered, but the commissioning editor is not obliged to accept ideas from the funder," it states.

"'Supported by' is also used to describe editorially independent content that the Guardian has produced with funding from foundations around the world who support specific projects."

It also said the Guardian does "not show copy to funders for approval" before publication.

The Australian reported that the Guardian said it "is covering a variety of views in the voice debate and reporting the story as it evolves".

Other topics The Balnaves Foundation supports on the Guardian's website include Australian arts.

A Guardian spokesperson told The Australian that Guardian Australia "has complete editorial control over all of its journalism and it remains completely independent, even when funded by philanthropy".

"When we partner with a philanthropic funder, we agree on a broad area of coverage only, after which all editorial decisions are made by Guardian editors exclusively. Philanthropic partners never pitch story ideas to editors. There are no exceptions to this," she said.

She also said the funding from Balnaves enabled it to "deliver fully independent coverage on Indigenous affairs".