Some of Australia’s biggest brands have shown their support for marriage equality in the most public corporate declaration for same-sex marriage in Australia to date.

Companies including Qantas, ANZ, and Foxtel have joined with The Equality Campaign as part of the ‘Until we All Belong’ project.

The campaign will work in collaboration with global brands Airbnb and eBay.

The project asks Australians to show their support for marriage equality by wearing a ring – the symbol of marriage – and for people to wear the ring until same-sex marriage is recognised in Australia.

The ring is engraved with the words ‘Until We All Belong’ on the interior.

Watch a video on the Acceptance Ring:

Airbnb CEO and head of community Brian Chesky said the company hopes the campaign brings marriage equality to the top of Australia’s political agenda and sparks conversations of acceptance.

“Openness and belonging are at the heart of Airbnb – it’s at the core of what we do every day,” he said.

“We are committed to helping people belong no matter where they are in the world and strongly believe that everyone should have the right to marry the person they love.

“This is an opportunity for people to show their support for marriage equality – not just those within the LGBTQI+ community, but for anyone to make their support for a brother, sister, parent, friend or loved one known.”

Other brands backing the campaign include Marie Claire, Fairfax Media, ARN, ClemengerBBDO, The Glue Society, and Marc Newson.

Meantime the Australian arm of banking giant HSBC is offering customers a choice of 10 gender neutral honorifics on paperwork.

These included “Mx” [gender neutral honorific], “Ind” [individual], “Misc” [miscellaneous], “Mre” [mystery] and “Msr” [combination of Miss and Sir].