I've made a lot of money off their stock so it immediately comes to mind - Atlassian. The only things I can think of are how they maneuvered around Australia's tax stuff, but they didn't go full on into tax havens like other companies have been accused of doing. They just went towards the U.K. And people have issues specifically with their products like Jira, but none of that relates to rules or ethics.

What rules did companies like Atlassian not follow?