One of the things we'll always encourage you to do in sales is use social proof.  Demonstrate your credentials by who you've worked with.  So this is a bit awkward, but we pride ourselves on confidentiality and because we've worked with some large clients, and some of their larger customers, our strict non-disclosure policy prevents us from mentioning the names of the SaaS companies, IT services players, financial institutions, insurance companies, and others we've helped.  Talk to us, and if you really need to know who else we've worked with after that, we'll find a way to make that happen.