Just build it. I learned the hard way that worrying about other people is useless, just execute. If you focus on executing and they worry about you, you will

Just build it. I learned the hard way that worrying about other people is useless, just execute. If you focus on executing and they worry about you, you will win. So make their goal to focus on you and yours to focus on clients. In the end clients will choose. Rarely is the market so small only a few can survive, and if it is that small, you are thinking too small. Markets worth going after can support multiple companies.