One platform.
Your business.
All connected.
Citadel, a modern AI-powered ERP built for mid-market enterprise organizations. Live in 3 to 6 months, not years.
Citadel, a modern AI-powered ERP built for mid-market enterprise organizations. Live in 3 to 6 months, not years.
Control your entire financial operation - from general ledger to multi-company reporting - with real-time visibility into every number that matters. No more spreadsheets at month-end.
Run the full order cycle in one place - quotes, confirmations, delivery scheduling, and invoicing - all connected to your inventory and finance in real time.
Automate purchase orders, manage supplier relationships, and control spending with 3-way matching that catches errors before they cost you.
Plan, execute, and track every work order from the shop floor - with real-time visibility into materials, capacity, and delivery commitments.
Real-time stock visibility across every warehouse location - with serial and batch traceability, stock reservations, and reorder automation.
Track every prospect, conversation, and deal in one place - fully connected to your orders, invoicing, and customer history.
From onboarding to payroll runs, manage your entire workforce in one system - eliminating manual tracking, missed deadlines, and compliance risk.
Give customers 24/7 self-service access to their orders, invoices, and support requests. Reduce inbound calls and strengthen relationships with real-time visibility.
Track the full lifecycle of every asset from acquisition to disposal. Preventive maintenance schedules, work orders, and depreciation - all in one place.
Track project costs, timesheets, and billing in one place. Real-time visibility into project profitability, resource utilization, and milestone delivery.
Reconcile bank accounts, manage payment batches, and forecast cash flow - with real-time visibility across every account and currency your business operates in.
Define budgets by department, cost center, or project. Track actuals in real time against plan and get alerts before you overspend — not after.
Deliver training programs, track certifications, and measure completion rates — all integrated with your HR module so learning records follow your employees.
Every module feeds into a single reporting layer - so you get cross-functional visibility, scheduled reports, and dashboards built from your real data.
Most ERP vendors add a chat window to a legacy interface and call it AI. PSI built two proprietary tools directly into Citadel — working alongside your operations using your own data, from day one.
Answers questions using only your data — your suppliers, your contacts, your inventory. Real answers from your own business records, not generic responses from the internet.
Routine tasks do not need human hands. Citadel automates workflows across every module — reducing errors, cutting processing time, and freeing your team for higher-value work.
Workflow automation handles fixed rules. AI Agents handle complexity. They reason through multi-step processes, manage exceptions without prompting, and operate across every Citadel module without a script for every scenario.
Handles vendor invoices end-to-end, from data extraction through GL posting, without manual entry at any step.
Monitors accounts receivable aging continuously, manages tiered outreach, and escalates overdue accounts. No daily staff intervention required.
Works through your month-end close checklist automatically, reconciling accounts, flagging anomalies, and delivering a clean variance report for review.
Watches every item against its reorder point, generates purchase requisitions before you stock out, and follows up on open POs approaching their due dates.
Workflows follow rules. Agents follow goals — and adapt when circumstances change.
Every agent operates within your approval structure. Humans stay in control of what matters.
Cloud, on-premise, or hybrid — Citadel runs in any environment. The architecture was designed from the start to support all three models without compromise.
PSI manages the infrastructure. You manage your business. Automatic updates, backups, and uptime — without touching a server.
Run Citadel entirely on your own infrastructure. Your data never leaves your environment — full IT control, full compliance posture.
Keep sensitive data on your own servers while leveraging cloud scalability where it makes sense. One platform, two environments.
Each product works on its own. Together, they cover every layer of your business — operations, integrations, intelligence, and extensibility — built and supported by the same team.
The operational core. Finance, sales, procurement, manufacturing, inventory, HR, and reporting — all in one platform, built and implemented by PSI.
Explore the platformConnect your business applications without heavy IT involvement. 400+ connectors spanning cloud, on-premises, and private cloud environments — so your systems share data cleanly and reliably.
A project-aware AI knowledge system built for delivery organizations. Query your SOWs, runbooks, and project files — with sensitive data anonymized before it ever reaches the model.
An autonomous AI development system that converts plain-language feature requests into production-ready, deployed software — across the full development lifecycle.