Unified UK Company & Charity Intelligence

The bridge between Companies House and the Charity Commission. Search over 5 million UK companies and 160,000 registered charities to uncover hidden leadership links and corporate networks.

Cross-Sector Tracing

Find where charity trustees hold private corporate directorships.

Network Visualization

Map the hidden connections between parent companies and subsidiaries.

Financial Analysis

View income vs. expenditure at a glance with interactive visual analytics.

Active Watchlists

Save entities to your dashboard to track status changes and new documents.

Professional Due Diligence Made Simple

The Muster is built for journalists, investigators, and business leaders who need to see the full picture. Our platform eliminates the "data silo" problem by merging two massive government registries into a single intelligence layer.

For KYC & Compliance

Perform instant background checks on UK officers and verify charity credentials.

For Investigative Journalism

Trace the flow of leadership across the non-profit and private sectors.

For Market Research

Analyze industry trends using SIC codes and geographic footprints.

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