SigningHub.com provides a great feature of being able to use existing PKI credentials that you may hold already from either a national e-ID provider or your bank or even your employer. Furthermore the power of SigningHub is such that it can allow multiple different PKIs to interoperate without any need for cross-certification or bridge CAs.
Here is the list of our current trusted Certificate Authorities, grouped under different categories. Note for enterprise service plan subscribers we can also further restrict/expand this list to suit your particular organisational needs, contact us for further details.
Following is the list of categories supported by SigningHub: