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Enterprise resource planning built for organizations where data sovereignty isn't a preference — it's a mandate. Every query resolves on your hardware. Every audit log stays in your building.
How does your current ERP compare?
Select your current platform. Watch each privacy metric resolve. Every red cell is a door your data can walk through.
Where does your data live, exactly?
Click any module to see the full architecture diagram. Every data node, every storage location — documented and verifiable.
Every journal entry, every reconciliation, every year-end close executes entirely within your on-prem SQL cluster. No financial data traverses the public internet at any point.
All financial computation runs on your hardware. Bank reconciliation uses encrypted file import — no live API connections to financial institutions.
Vendor contracts, purchase orders, and sourcing decisions stay inside your perimeter. Supplier communication is routed through your own mail server — never through Ledger's infrastructure.
Supplier portal runs on your DMZ server. External vendors access a controlled endpoint you own — Ledger never relays data through its own network.
Personnel files, security clearance records, and payroll data are the highest-sensitivity assets in any organization. Ledger HR stores everything in your encrypted on-prem database with role-based access controls you define.
Security clearance module operates on an isolated subnet with no external routing. Payroll processing uses your existing banking EDI infrastructure.
Manufacturing resource planning, inventory optimization, and demand forecasting run on your compute. Machine learning models train on your data and stay on your servers — model weights never leave your facility.
ML demand forecasting runs entirely on-prem. EDI transactions with suppliers route through your existing AS2/SFTP gateway — Ledger never touches that data stream.
Every architecture claim is documented in our technical whitepaper with network diagrams, firewall rule examples, and third-party audit findings.
"We got burned by a SaaS ERP breach in 2023. Forty thousand employee records. Ledger was the only platform where our security team could look at the firewall logs and see nothing going out."
Deploy Your Trial Instance
Your trial runs entirely on your hardware. We ship a Docker image to your ops team. No data leaves your network during evaluation — the same guarantee we make in production.
Download the Architecture Whitepaper. 42 pages of network diagrams, firewall configurations, and third-party audit findings. Built for your security review meeting.
No personal emails. No marketing lists. One email to confirm your trial instance.