Actually I'm not expert in determining the criteria of respectable brokers. However I've been in the market for about 4 years with a lot of losses and few times of winnings. I think there are large well established companies nobody claims they are scam. I can list some: Moderation Team Note: Do not list "good brokers" in a complaint thread about another broker.
Best of luck for all my colleagues.
Best of luck for all my colleagues.