Is there a company that organizes Black Box testing with certificates and responsibilities?

Question

PHP

Does anyone know of such a company? The service needs to be tested.
I contacted Positive Technologies, but they did not answer at all.

Answer 1

What kind of certificates do you need? Do you need certified specialists or do you need to issue some kind of certificate for your software upon completion of testing?

Answer 2

If you need certificates, then this is www.infosec.ru/katalog/cootvestvie-trebovaniyam
If you need security, then this
is www.dsec.ru
- onsec.ru/en/laboratory.html
- well, positive software

Answer 3

www.a1qa.com Minsk, Belarus