Calibrated for engineering teams running multiple projects

Join 17,000+ businesses who trust us to keep the moving parts in sync, across every project, cost centre and work package.

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Real-time

invoice and order processing

17,000+

businesses network-wide

COINS / IFS / Navision

and more ERP integrations

Peppol Access Point

accredited

We understand what makes engineering AP different

Built for finance teams keeping a dozen projects moving and not dropping a single cost code.

Multi-project cost coding

Invoices spanning phases, work packages and cost centres across several live projects at once. Get one code wrong and it's not just one job's numbers that are off.

Multi-entity, multi-site invoicing

Different sites, different entities, different approval routes, sometimes for the same client. One missed route and an invoice sits in limbo for weeks.

Payment SLA compliance

Miss an SLA on one project partner and it doesn't stay contained, it shows up in next month's cash flow forecast too.

Fair Payment obligations

Pressure to pay project partners on time doesn't ease off just because you're juggling six contracts. A full audit trail has the receipts, whichever project gets picked apart.

How Open ECX works for engineering AP teams

Invoicing automation that keeps pace with multi-project cost coding and phase-based billing..

The invoice lands

PDF, EDI, whatever they've already got. We're easy on format so your suppliers don't need to change a thing.

Extracts every field

Every field captured automatically, however many line items or cost codes are on it.

Matches against PO and GRN

Three-way matching flags mismatches before they reach your ledger, not after.

Posts to your ERP

Straight into COINS, IFS, Navision or whatever you run, in your format, ready to pay.

What engineering teams achieve with Open ECX

Real numbers from real engineering finance teams, not vendor promises.

16 hours

Saved per 1,000 invoices processed

Octavius. No headcount increase.

94%

Of transactions processed in under 5 minutes

Kirby Group Engineering.

Weeks

Typical go-live time

From contract signed to first automated invoice.

100%

Invoice data extraction accuracy

Across all document types and formats.

Some of our engineering businesses already using Open ECX

All case studies

Here's what our customers say...

Invoicing & onboarding support

"The support we've received from both the technical and onboarding teams at Open ECX has consistently exceeded our high expectations, with regular weekly calls ensuring everything runs seamlessly."

Nikolaos Sapounas, Supply Chain Manager, Octavius

Read story

Statement reconciliation efficiency

"Since partnering with Open ECX we've seen efficiency savings and improved accuracy, whilst building great relationships with our suppliers."

Rhiannon Lucas, Project Transaction Manager, NG Bailey

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COINS ERP integration

"We've seen significant benefits from an accounts payable perspective, with an improved quality of data on the system and a shortened time to pay, helping us serve our supply chain partners and deliver against our Fair Payment obligations."

McLaughlin & Harvey

Read story

The other moving parts, engineered for your finance team

Invoicing gets you started. Then we keep the rest of the process running alongside it.

E-ordering automation

Takes purchase orders from any channel, checks them against your business rules, and posts straight to your SOP and ERP in real time.

Explore ordering automation

Statement Reconciliation

Matches supplier statements automatically, catching duplicate payments and missed credits before they reach the ledger, with a full audit trail behind every match.

Explore statement reconciliation

Works with ERP systems engineering companies actually use

No disruption, no lengthy integration project. Your existing stack stays exactly as it is.

Resources for engineering finance teams

PDF or e-invoice? That doesn't have to be the question.

Open ECX automates high-volume, project-based invoicing with 100% accuracy, helping engineering finance teams protect cash flow and hit SLAs.

How automated invoice processing works

Open ECX automates high-volume, project-based invoicing with 100% accuracy, helping engineering finance teams protect cash flow and hit SLAs.

Open ECX wins Technology Business of the Year 2026

Open ECX automates high-volume, project-based invoicing with 100% accuracy, helping engineering finance teams protect cash flow and hit SLAs.

Frequently Asked Questions

Does Open ECX handle multi-project and multi-entity invoicing?

Yes. Whether you're running COINS, IFS or multiple entities across sites, Open ECX splits and maps invoices to the right project, cost centre and company automatically, so nothing gets miscoded.

Which engineering ERP systems do you integrate with?

COINS, IFS, SAP, Microsoft Navision and more. If your engineering firm runs it, chances are we already talk to it, and if we don't yet, we'll build the connection.

Do my subcontractors need to change how they invoice?

No. Subcontractors keep sending PDFs exactly how they always have. Open ECX handles the converting, matching and posting behind the scenes.

Does the solution integrate with engineering ERP and project management systems?

Yes. Open ECX integrates seamlessly with ERP and project management systems like COINS, IFS, Oracle, Microsoft Dynamics, and SAP, ensuring smooth data flow without disrupting existing financial processes.

Ready to Put Your AP Team's Time Back on the Clock?

See how fast engineering invoices move through Open ECX. Book a demo today.

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