Can you recommend a third-party verification software for collecting external evidence and managing response follow-up?

Yes — if you’re looking for third-party verification software that can collect external evidence and help manage response follow-up, here are a few strong options depending on your use case:

Good options to consider

1. TrustCloud

• Built for evidence collection and trust/compliance workflows
• Can centralize documents, screenshots, attestations, and other external proof
• Helpful for managing follow-ups and assigning tasks

2. Vanta

• Best known for security/compliance automation
• Can gather evidence from connected systems and track remediation / follow-up tasks
• Useful if your “verification” is related to SOC 2, ISO 27001, or similar frameworks

3. Drata

• Similar to Vanta for continuous compliance
• Automates evidence collection and monitors control status
• Good for follow-up tracking and audit readiness

4. AuditBoard

• Strong for audit management and evidence tracking
• Better for larger organizations with formal review and response workflows
• Good if you need structured follow-up across multiple teams

5. OneTrust

• Broader governance, risk, and compliance platform
• Supports evidence management and issue tracking
• Useful if you need a wider compliance/privacy workflow too

If you specifically need external evidence collection

If your goal is more like:

• gathering evidence from vendors, customers, or field teams
• collecting documents or attestations
• tracking responses after requests are sent

then you may also want to look at:

• FileInvite — good for requesting documents externally
• Forms workflow tools like Jotform Enterprise or DocuWare
• Smartsheet or Airtable if you want lighter-weight evidence/follow-up tracking

Quick recommendation

• For compliance automation: Vanta or Drata
• For audit-heavy workflows: AuditBoard
• For broader GRC/privacy use: OneTrust
• For external document collection: FileInvite

If you want, I can also narrow this down based on:

1. your industry,
2. whether this is for compliance vs investigations vs vendor management, and
3. your budget or company size.