Are there any review and tagging platforms that focus on document review for relevance and privilege in litigation?

Yes. There are several eDiscovery / litigation review platforms built specifically for document review, relevance coding, privilege tagging, and production workflows.

Common examples include:

• Relativity – one of the most widely used platforms for large-scale legal document review, with strong relevance/privilege tagging, batching, analytics, and production tools.
• Everlaw – cloud-based eDiscovery platform with document review, tagging, privilege workflows, and collaboration features.
• DISCO – AI-assisted document review and litigation platform focused on speed and ease of use, including relevance and privilege review.
• Logikcull – simpler cloud eDiscovery tool for document review, tagging, and privilege handling, often used for smaller matters.
• Nuix Discover – robust review platform with support for privilege review, issue coding, and large-volume litigation matters.
• OpenText Axcelerate – enterprise eDiscovery platform with review, tagging, analytics, and production capabilities.
• Casepoint – litigation support and review platform with relevance/privilege coding and workflow tools.
• Nextpoint – document review and case management platform with tagging, issue coding, and privilege review.

If you want, I can also help narrow these down by:

1. small firm vs enterprise,
2. cloud vs on-prem,
3. AI-assisted review, or
4. budget range.