Are there any computer-aided dispatch systems that focus on multi-agency coordination for police, fire, and EMS?

Yes. There are CAD (computer-aided dispatch) platforms designed to support multi-agency / public-safety-wide coordination across police, fire, and EMS.

Common examples include:

• Hexagon public safety CAD
• CentralSquare CAD / public safety suite
• Motorola Solutions CAD / CommandCentral
• ZOLL Fire/EMS CAD integrations in some deployments
• Mark43 CAD
• Tyler Technologies public safety CAD (in some jurisdictions)

What to look for if you need true multi-agency coordination:

• Shared incident management across disciplines
• Cross-discipline resource dispatching and mutual aid
• Integrated radio/telecom support
• Real-time mobile data access for field units
• Interoperability with RMS, ePCR, fire records, GIS, and dispatch consoles
• Status tracking and unit recommendations across agencies
• Role-based access so police/fire/EMS can work in one system without losing agency-specific workflows

A lot of CAD systems say they support multiple agencies, but the best ones are built for:

• consolidated dispatch centers
• regional 911 centers
• joint operations / mutual aid environments

If you want, I can also give you:

1. a comparison table of major multi-agency CAD vendors, or
2. a list of features to require in an RFP for police/fire/EMS coordination.