A complete NEC contract administration platform — managing the full procedural lifecycle of every communication type, from early warnings and compensation events to payment applications and programme submissions. Built by practitioners, for practitioners.
NECCAT is a web-based NEC contract administration platform that manages the complete procedural lifecycle of NEC3 and NEC4 Engineering and Construction Contracts. It originated as a working Microsoft Access system used on real NEC contracts and has been fully redeveloped as a modern web application — which means the workflows reflect how NEC actually operates, not how a software developer imagined it might.
NEC contracts impose strict obligations on both parties to communicate formally and respond within defined timeframes. Missed notifications, late responses and unmanaged compensation events have real commercial consequences — missed entitlements, deemed acceptances, time-barring. NECCAT enforces these workflows so the right things happen in the right sequence, and nothing slips through.
The platform covers every major NEC communication type — Early Warnings, Compensation Events, PM Instructions, Proposed Instructions, General Communications, Ambiguity Notices, Applications for Payment, Programmes, Tests and Inspections, Meetings, and more. Each module follows the correct NEC procedural sequence, with contractual timelines calculated automatically from the contract dates you configure.
The result is a complete, auditable record of contract administration — with the depth to support payment applications, dispute resolution and programme management, not just day-to-day correspondence.
Each module follows the correct NEC procedural sequence — not just a log, but an end-to-end workflow with the right status progressions, response periods and role-based actions.
Risk assessment, likelihood scoring, risk register, Early Warning Meetings (NEC4) and closure workflow by both parties.
Full NEC workflow: notification → quotation → assessment → acceptance. Deemed acceptance triggers and time-barring logic built in.
Issue, acknowledge, link to CEs, record programme and cost impacts. Proposed Instructions with priced quotation workflow.
Full payment cycle — AfP submission, payment certificate, pay less notice. Invoice upload and digital signing of certificates.
Submission workflow with PM acceptance or rejection, checklist review against NEC programme requirements, revision tracking.
Tests and inspections, defect notification and correction, general communications, ambiguity notices, meetings and key dates.
NECCAT is designed around the way NEC contracts actually work — keeping teams compliant, informed and on top of their obligations.
Every communication module follows the correct NEC procedural sequence — with the right status progressions, role-based actions and contractual timelines enforced throughout.
Version differences handled automatically — different meeting types, clause references and process variations for NEC3 and NEC4 contracts, configured at project level.
Deemed acceptance triggers, time-barring logic and response period tracking are built into the CE workflow — so entitlements aren't lost through procedural oversight.
Applications for payment, payment certificates, pay less notices and invoice uploads — the complete payment administration workflow in one place, with digital certificate signing.
Every action across every module is timestamped and user-attributed. A complete, structured record that supports dispute resolution, not just day-to-day administration.
Internal approval routing before communications are formally posted — role-based sign-off, approve/reject/recall, multi-level governance for organisations that need it.
Screens from the live NECCAT platform. Get in touch to arrange a full walkthrough.

Full CE list with NEC reference numbers, posting dates, reply deadlines and live workflow status — each CE progressing through the correct NEC sequence with role-appropriate actions at every stage.

Early Warning register with risk scoring and status, linked to Early Warning Meetings — with minutes, action items and linked communications all in one record.

Full contract configuration — parties, dates, contractual timelines, payment cycle, NEC contract type (NEC3/NEC4, Options A–F), core clauses and Z clause tracking.

In-app notifications covering all communication types — AfP submissions, programme revisions, required actions and status changes — so every party knows what needs their attention.
Access NECCAT now or get in touch to discuss how it can support your project and contract team.