Sayyed Mohammad Al-Musawi, Sayyed Mohammad al-Musawi is originally from Iraq and heads up the World Ahlul Bayt Islamic League in London. Other than being involved in various humanitarian projects, he frequently responds to... Answered 1 year ago

It depends on the nature of their business activities.

If they work in usury business or any unlawful business, it wll be unlawful to work for them, but if their activities are away from usury and away from any Haraam (unlawful) business, then it wil permissible to work for them.