I think you shouldn't bother too much about that. Names can be changed - the solutions you offer are more important. And as SaaS provider it would be stupid f

I think you shouldn't bother too much about that. Names can be changed - the solutions you offer are more important. And as SaaS provider it would be stupid from competitors to use the same name because you probably already own e.g. the domain => so it would be more hassle for them (except for the countries where fakes are common, but no trademark protects you in these regions)