WCAG & AGA Compliance

We are experiencing more and more requirements from bigger business (specially in education) requiring service providers like CRAs to have WCAG & ADA compliant portals for users and applicants. 

We currently implemented many compliance standards on our websites and such(still need more to be fully compliant). Which is one requirement but now we noticed recently that several Bids/Customer and RFPs are asking for these standards to be applied to any user interface we provide (deverus) portals.

Has any other CRA or customer of deverus run into this?

Thanks,