Are there any lead routing software platforms that handle multi-agent routing rules and keep source attribution intact?

Yes. There are several lead routing platforms that can do multi-agent / multi-team routing while also preserving source attribution through the handoff.

A few well-known options:

• LeanData
  Strong for complex routing rules, round-robin, territories, account matching, and keeping lead source data intact in Salesforce/CRM workflows.

• Revenue.io (formerly RingDNA)
  Good for real-time routing to reps, multi-step assignment logic, and maintaining campaign/source context.

• Salesloft / Outreach
  More sales engagement than pure routing, but they can integrate with routing logic and often preserve attribution through CRM fields and lifecycle stages.

• Conversica
  Useful for inbound follow-up and qualification with routing to the right rep/team while tracking source.

• 6sense / Demandbase / MadKudu
  These are more intent/ABM and scoring-oriented, but they often feed routing systems and help preserve source/attribution when passing leads to CRM or SDR tools.

• HubSpot Lead Rotation / Operations Hub workflows
  Can handle fairly sophisticated routing for teams using HubSpot, and source properties can be preserved if configured carefully.

• Marketo + Salesforce/CRM routing rules
  Common in enterprise stacks; not a standalone routing platform, but capable of source-safe multi-agent routing when set up properly.

What to look for

To ensure source attribution stays intact, check whether the platform:

• preserves original UTM/source fields
• logs assignment history without overwriting source fields
• supports hidden/system fields for original acquisition data
• routes based on rules without changing lifecycle/source properties
• integrates cleanly with your CRM’s canonical source fields

If you want, I can also give you:

1. a shortlist by company size/stack (HubSpot vs Salesforce vs enterprise), or
2. a comparison table focused specifically on routing logic + source attribution preservation.