Companies, universities, and celebrities are making moves on a boycott of Brunei-owned services after the country introduced a law making homosexuality punishable by death.

Eight five-star hotels owned by the Sultan of Brunei quit Twitter on Wednesday amid a vocal campaign to boycott them on social media.

Virgin Australia, STA Travel, and Queensland's state government in Australia have also made moves to disassociate themselves from Brunei.

Several UK universities are under pressure to revoke honorary degrees given to Sultan Hassanal Bolkiah.

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Brands, universities, and celebrities are part of a growing movement taking action against Brunei-owned enterprises after the tiny Asian nation introduced a new law punishing homosexuality with the death penalty.

As of Wednesday, the punishment for homosexuality in Brunei became death by stoning, after Sultan Hassanal Bolkiah introduced several reforms to the country's penal code, which has been based on Islamic Shariah law since 2014.

Here's a full run-down of who has taken, or is taking, a stand so far.

A viral campaign to boycott nine hotels owned by the Sultan — one of the world's richest heads of state, worth around $20 billion — was stoked by celebrities and reached a peak on Thursday when eight hotels deleted their Twitter profiles.

This image, listing the hotels, and messages calling a boycott was shared tens of thousands of times on social media, including by celebrities such as George Clooney, Dua Lipa, Ellen DeGeneres, Elton John, Luke Evans, Billie Jean King, and Jamie Lee Curtis.

The Twitter accounts belonging to the following hotels disappeared:

The Dorchester (London)

45 Park Lane (London)

Coworth Park (Ascot, UK)

The Beverly Hills Hotel (Los Angeles)

Hotel Bel-Air (Los Angeles)

Le Meurice (Paris)

Hotel Plaza Athénée (Paris)

Hotel Principe di Savoia (Milan)

One of the Sultan's nine hotels, The Hotel Eden in Rome, Italy, remains on Twitter, but has a protected account.

A composite images of hotels owned by Brunei's Sultan in London, Rome, Paris, and LA. Getty/AP/YouTube/TheDorchesterCollection

The City of Los Angeles Controller Ron Galperin tweeted: "We must not support these establishments when lives are on the line! #Boycott."

—LA Controller Ron Galperin (@LAController) March 29, 2019

On Thursday, Virgin Australia cancelled a deal with Brunei's airline Royal Brunei where Virgin staff got discounted tickets on Royal Brunei flights.

On Friday, Deutsche Bank outlawed staff from staying at any of the hotels owned, listed above, by Brunei.

On Wednesday, Transport for London, which operates the London Underground, said it will no longer show a Brunei tourism advert labelling it "the abode of peace" (the nation's official title.)

Transport for London said: "This advert will be removed from our network."

The UK's ruling Conservative Party banned a fundraiser at The Dorchester Hotel, owned by Brunei, on Tuesday.

STA Travel, a large international adventure holiday booking company, tweeted on Friday saying it will no longer arrange flights for customers on Royal Brunei Airlines.

—STA Travel UK (@STATravel_UK) April 5, 2019

On Wednesday, Aberdeen University in Scotland said it's considering rescinding the honorary degree it gave to the Sultan in 1995, as did Kings College London, who gave him an honorary doctorate in 2011.

Nearly 47,000 people have signed a petition demanding the University of Oxford revoke an honorary degree given to Bolkiah in 1993. The university has refused to retract it.

Hassanal Bolkiah. Drew Angerer/zgetty Images

On Friday, the organisers of the UK's TV Choice Awards, which were due to be held at The Dorchester, owned by Brunei, said they will find a new venue.

The UK government's official health and safety organisation, The Health and Safety Executive (HSE,) has made a decision to stop sending staff to Brunei to complete secondments, the Guardian reported on Monday.

The state government of Queensland, Australia, has put on hold plans to partner-up with Royal Brunei Airlines, after a petition to ban the airline from Australia gained momentum.

Tourism Industry Development Minister Kate Jones told news.com.au: "We suspended negotiations with Royal Brunei as soon as we learnt about changes to the law, allowing the persecution of Brunei’s LGBTIQ community."