The verdict in three sentences
A MES (Manufacturing Execution System) connects your machines, operators and ERP to run production in real time: without it, you are flying blind on OEE. In 2026, an off-the-shelf platform starts at EUR 500-1,500/month per site but forces your processes into its mold, whereas a custom build (EUR 70,000-180,000) matches your actual work orders. The real decision hinges on 5-year TCO and ERP integration quality, not the entry price.
What an MES must really cover in 2026
A manufacturing director in Berlin is not looking for one more dashboard: they want to link the floor to the decision. The non-negotiable building blocks:
- Real-time work-order tracking: shop-floor declaration, progress, incidents.
- Automatic OEE calculation: availability x performance x quality.
- Full traceability: material, batch, machine, operator, for compliance and recall.
- Machine connectivity (OPC-UA, Modbus, PLC feed) to remove manual entry.
- ERP integration (SAP, Dynamics, Sage): bill-of-materials and stock synchronization.
| Feature | Off-the-shelf MES (SaaS) | Custom MES |
|---|---|---|
| Entry price | EUR 500-1,500/month/site | EUR 70,000-180,000 (one-shot) |
| Fit to your work orders | Limited config | Total, matches your flows |
| Machine connectivity | Paid add-on modules | Included, protocols of choice |
| ERP integration | Standard connector | Custom two-way API |
| Custom OEE | Fixed formulas | Your own metrics |
| Time to deploy | 3-6 months | 6-12 months |
| Code ownership | No (license) | Yes |
5-year TCO: the real comparison
The entry price lies. For a 3-line shop with 25 operators, here is the 2026 order of magnitude:
| Item | SaaS vendor | Custom |
|---|---|---|
| License / initial build | 0 (in subscription) | EUR 120,000 |
| Annual subscription | EUR 18,000/yr | 0 |
| Evolutive maintenance | partly included | EUR 15,000/yr |
| Machine connectors | EUR 8,000/yr | 0 (included) |
| 5-year cost | ~EUR 130,000 | ~EUR 195,000 |
| Estimated productivity gain | 5-10 % | 8-15 % |
Custom costs more upfront but pays off once the OEE gain exceeds 3-4 points and your flows are too specific for a packaged product.
Mini case study
Thomas, manufacturing director of a 60-person aerospace subcontractor in Berlin, loses 12 % of capacity to untraced incidents. A custom MES at EUR 135,000 (9-month delivery) lifts OEE from 68 % to 76 %, i.e. +8 points. On a shop revenue of EUR 4.5M, those 8 points free up the equivalent of ~EUR 360,000 of annual capacity. ROI reached in under 6 months of operation.
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FAQ
How much does a custom MES cost in 2026?
Expect EUR 70,000-180,000 depending on the number of lines, machines to connect and depth of ERP integration. A simple single-line shop can drop to EUR 70,000; a multi-site setup exceeds EUR 180,000.
Custom or off-the-shelf: how to decide?
If your processes fit a standard product, off-the-shelf is faster (3-6 months). If your work orders, traceability or machines are atypical, custom avoids years of workarounds and becomes cheaper beyond 4-5 years.
What productivity gain to expect?
Realistic in 2026: 5 to 15 % OEE depending on your starting maturity. A well-run shop gains 5 %; a shop with no tracking can exceed 12 %.
Can we connect legacy machines?
Yes, via feed boxes (counters, sensors) even on machines without a modern PLC. Scope and budget it early.
What is the delivery timeline?
6 to 12 months for a custom build: 2 months of scoping, 4-6 months of development, then line-by-line rollout to avoid stopping production.
Let's scope your project. Tell us about your lines, the machines to connect and your target ERP, and we will price your MES with an indicative budget and a realistic timeline. Detailed quote within 48 h. WhatsApp +221 77 596 93 33.
Mohamed Bah
Fondateur, Kolonell
Passionate about digital and entrepreneurship in Africa, Mohamed has been helping Sénégalese businesses with their digital transformation since 2020. Founder of Kolonell, he believes every SME deserves a professional and accessible online présence.
