You already asked in so I'm locking this duplicate post. Please continue there.

You really have to be more clear about your needs. Both 'software services' and 'business processes' relate to running a business, while 'projects' relates to making or doing something new or in another way.

Also, please make clear why you found all freelancers to be unsuited to be a trusted partner. What are your minimum requirements for a service provider to be trusted by you?

Forty years ago, a common saying was "You're never fired for buying blue." That is, for buying IBM, very reliable, very trusted.
I doubt if it's a good choice for a startup, but why not have a look at ? it might help you to get a better idea of what you really want.