From my experience, I'd stay away from the word Ansar. Imagine you meet someone, get talking and they are interested in your work. They ask you business name and you 'Answer' Ansar. Anything that can be spelt wrongly or mis-interpreted is bad news, and nothing to do with any Asian connotations, as previously said, there is an English racism slant on Pakistani/Indians, but even putting those two nations together in the same sentence can cause problems.

As an Englishman living in SE Asia, I'd like to teach the UK a lesson, but it would never work. Best to stay safe and play the business name/branding very carefully to maximise profits without alienating anyone. For example, my company is my username. A bit nondescript but memorable ( I hope).