Talk to the workshop
+32 476 71 50 81 [email protected]Leuvensebaan 184, 1930 Zaventem, Flemish Brabant, Belgium
Monday to Friday, 9:00 AM – 6:00 PM
© 2026 HorizonVale Holdings BV
System integration & custom applications
HorizonVale Holdings builds custom business applications and the integration layer under them, so a scheduling tool, a portal or a warehouse app can read from SAP and write back to it — without a nightly export and a spreadsheet held together with hope.
What we build
Whether that is a claims workflow, a production planning board or a partner portal, we build the application around the process your people actually run. A typical engagement starts with a process someone is running on email and one shared mailbox. We map the data, pick the connection pattern, and build something that survives an audit.
Screens are the easy part. What matters is that the invoice status change at 02:00 reaches the three systems that need to know about it.
The connectors, APIs and orchestration that let that application exchange data with ERP, CRM, logistics and collaboration platforms — versioned, logged, and maintainable by someone other than the person who wrote it.
The platforms
We are not tied to one vendor, and we don't pretend the choice doesn't matter. The decision is usually about your team, your data residency requirements and how much of the logic belongs in a platform versus in your own code. We'll tell you when a platform is overkill.
Fit
SAP-centric estate
Strength
Finance workflows stay synchronised
Fit
Business-led automation
Strength
Cross-app flows without an IT queue
Fit
Data-heavy estates
Strength
Volume and governance
Fit
Cloud-native teams
Strength
Managed building blocks
A short written assessment from a real engineer, not a deck with stock photos.
The delivery
Handover is where a lot of consultancies end the story. We'd rather be maintainable by design: documented connectors, tests that run in a pipeline, and a runbook your own people can follow.
Discover
Week one is deliberately unglamorous. We inventory the systems in scope, confirm which environments we can reach and how, and agree the one process we'll automate first. You get a data-flow diagram by the end of it.
Design
We put a managed API layer in the middle, so each system talks to one contract instead of to five others directly. Swapping a subsystem in two years changes one connector, not the application.
Build
Picking a narrow first slice matters. A working integration on a small process teaches you more about your own data quality than three months of design workshops.
Operate
Software rots at the edges: an API version changes, a vendor deprecates an endpoint, someone leaves. We build with versioning, contract tests and alerting so you find out from a dashboard rather than from a customer.
First conversation is usually 45 minutes — with whoever owns the process and whoever owns the systems.
Working with us
From there you get a short written assessment: options, rough effort, risks, and what we'd need from your side.
Duration
A defined window
Scope
One application or one integration, priced and scheduled upfront
Deliverables, timeline granularity, and who sits where are agreed in writing before the first sprint. Typical fit: a claims workflow, a partner portal, or a single connector between ERP and a new tool — where the scope can be named and the cost should not surprise anyone.
Duration
Rolling, month by month
Scope
We work alongside your engineers on a shared backlog
For a modernisation programme that will not fit a fixed scope, or a product team that needs capacity for a quarter. Your engineers share the backlog, the merge reviews and the runbook — so the knowledge does not leave with us.
Duration
Two to four weeks
Scope
A second opinion on architecture before you commit
When you just need a second opinion on the architecture: we review the current estate, name the seams where projects usually fail, and hand you a written view you can take to an internal committee. No build, no retainer.
If your problem is a single spreadsheet, you probably don't need us yet.
Hybrid
Belgian enterprises rarely run everything in one place. Payroll data may have to stay on-premises for contractual reasons; customer-facing tools want cloud elasticity. We build for both sides of that line, with connectivity through a gateway rather than an open port.
Concretely: on-premises systems exposed through a controlled connector, cloud services reached over private networking where it's available, and secrets held in a managed vault.
On-premises
ERP, legacy databases, file shares, local message queues.
Cloud
Azure, AWS, and SaaS platforms such as CRM or HR tooling.
The join
Gateway, API layer, and monitoring across both.
Nobody's database credentials end up in a config file on a laptop.
The API layer
Anyone can ship a screen. The hard part is what happens when the invoice status changes at 02:00 and three systems need to know. We design API-led connectivity: a managed API layer in the middle, so each system talks to one contract instead of to five others directly.
That means when finance replaces a subsystem in two years, you change one connector, not the application. It also means you have a log of every message, which is what your auditor will ask for and what a point-to-point script will never give you.
Who this fits
Operations directors
At manufacturers, logistics companies and financial services firms — where a process has outgrown the tool that holds it.
IT leads
Who inherited twenty years of systems and a mandate to modernise without a big-bang migration.
Product teams
That need their software to connect to customer systems — the integrations are part of what they sell.
We're a Belgian company, HORIZONVALE HOLDINGS BV, and we work with operations and IT leaders who have to justify the spend internally. So we scope in a way that lets you show what changed.
Questions
If your question isn't here, the contact page will get you a real answer from someone technical, not a sales sequence.
Email us your system landscapeThere's no single winner. SAP Integration Suite is the natural fit when your processes are SAP-centric in both cloud and on-premises. For mixed estates, Workato, Tray.ai and SnapLogic all handle on-premises connectivity through an agent or gateway, and AWS Application Integration works well when you're already cloud-native. The deciding factor is usually your team's skills and where the business logic should live.
By not connecting them directly to each other. We put a managed API layer in the middle, so each system talks to one contract. You end up with fewer connections to maintain, a single place to see traffic, and the ability to swap a system without touching the others.
Low-code handles forms-over-data, approval flows and internal tools with predictable logic. Custom development earns its cost when the logic is genuinely unusual, when performance matters at volume, or when the application is something you'd sell. A lot of real projects are a low-code front end with custom code behind the hard parts.
Versioned APIs, contract tests in a pipeline, secrets in a managed vault, and structured logging of every message. If you can't answer "what happened to this record and when" from a log, the integration isn't finished.
SAP-heavy usually points to SAP Integration Suite, occasionally paired with Informatica IDMC for data governance. Microsoft-heavy stacks often use Azure services with an iPaaS layer for the SaaS connections. Both are common in Belgium.
HorizonVale Holdings BV
Most Belgian organisations we meet don't want to replace their ERP. They want the new thing to work with it. HorizonVale Holdings builds custom business applications and the integration layer underneath, so a scheduling tool, a portal or a warehouse app can read from SAP and write back to it.
The first conversation is usually 45 minutes with whoever owns the process and whoever owns the systems. We ask what breaks today and what has to keep working. From there you get a short written assessment: options, rough effort, risks, and what we'd need from your side.
What we build
The company
Reach a person
HORIZONVALE HOLDINGS BV
Custom business applications and system integrations for Belgian organizations with hybrid cloud and on-premises environments. Monday to Friday, 9:00 AM – 6:00 PM.
