Which school is the best to improve my Business English skills in New York City?

I finished my master degree in the States. I have many friends who are native English speakers. I’ve been working in New York City for a few years.. And I think I’ve been doing good, but these days, I see my English skills as a career barrier. So I’d like to improve my Business English, especially verbal communication skill. I don’t mind a private or group lesson, as long as it’s good.

If you have experiences to attend one of them, care to share with us about it (even if it was a bad one)?

N Y U

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