Are there any client portal software platforms that let clients submit certificate requests and endorsements through a mobile-friendly portal?

Yes — several client portal / agency management platforms let clients submit certificate requests and often endorsement requests through a mobile-friendly portal or responsive web app.

A few common ones in the insurance agency space:

• Applied Epic / Applied CSR24
  Clients can use a self-service portal for requests, including certificates and policy service items. CSR24 is designed to be client-friendly and mobile accessible.

• Vertafore AMS360 + Client Portal options
  Depending on your setup, clients can submit service requests through a portal that’s mobile-friendly.

• NowCerts
  Includes client portal functionality where clients can request certificates and service changes. The portal is generally browser-based and works on mobile devices.

• HawkSoft Client Portal
  Supports client service requests and certificate requests, with a responsive experience that works on phones/tablets.

• EZLynx Client Center
  Offers self-service client access and request submission, including common policy service needs.

• AIM / agency portals integrated with forms/workflows
  Some agencies use a separate portal front end tied into their AMS or CRM to route certificate and endorsement requests.

What to look for if mobile use matters:

• Responsive/mobile-friendly portal design
• Secure document upload
• Request routing/workflow to CSR staff
• e-signature support if needed
• Integration with your AMS and e-mail notifications
• Ability to prefill policy details so clients don’t have to type everything manually

If you want, I can also give you:

1. a shortlist by agency size/budget, or
2. a comparison table focused specifically on certificate + endorsement request workflows.