Power BI consultancy in Brussels: what it costs, what breaks and what to build first

Power BI is rarely the thing that is broken in a Brussels reporting estate. What is broken is that the business logic lives in twelve separate files, each maintained by whoever needed it first.

Brussels is large enough that most organisations here already have several analytics teams and the problem is reconciling them. With around 1,220,000 people in the city itself and roughly 2,100,000 across the wider urban area and an economy built on public sector, professional and legal services, and retail and commercial banking, the reporting questions here are specific rather than generic, and so are the ways they go wrong. This page sets out what a Power BI engagement in Brussels actually involves: the metrics we check first, what it costs, how licensing should be chosen, whether you would be better off hiring, and what the compliance position looks like under the EU GDPR and the Belgian Data Protection Act of 2018.

Why reporting breaks in Brussels specifically

Generic advice about Power BI is not very useful, because the failure modes follow the industry rather than the tool. Brussels's economy is weighted towards public sector, professional and legal services, and retail and commercial banking, with the EU institutions and hundreds of associated organisations and a dense professional services and lobbying sector shaping much of the local employment base. That mix produces a predictable set of reporting problems, and we have seen each of them here more than once.

Public sector

Case and service data locked inside line-of-business systems with restrictive reporting modules, feeding statutory returns with precisely defined rules.

The characteristic failure is this: returns are assembled by hand each cycle by a small number of experienced staff, concentrating risk in individuals. Where that has already happened, the first deliverable is not a dashboard. It is a written reconciliation that establishes which number is correct and why. In practice we start by building a governed model that produces both the statutory return and internal performance reporting, so published and internal figures cannot diverge.

Typical source systems: case management systems, finance and ERP, HR and payroll, GIS and gazetteers and grant management. Freedom of information and transparency duties mean published figures must be reproducible, and disclosure control has to be applied in the pipeline.

Retail and commercial banking

High-volume transactional data at account and posting grain, with a core banking system that was never designed to be queried analytically and a general ledger that is authoritative but coarse.

Here the recurring problem is different: each function builds its own extract from core banking with its own as-at timing, and the resulting small variances are never reconciled. They are simply explained away each month. The fix is a conformed account and customer dimension with a balance and transaction fact, which immediately resolves the usual disagreement between finance, risk and the front line. Account-level data is both personal data and commercially sensitive, so row-level security and export control are design requirements rather than later hardening.

Media, advertising and creative

Audience and campaign data from many external platforms, each with its own metric definitions, alongside project and resource data on the delivery side. Each platform's own numbers are reported side by side as if comparable, producing totals that exceed actual results.

We would usually begin with a campaign and revenue model with deduplicated attribution and a documented definition per platform metric, replacing a monthly spreadsheet merge. Source systems to expect: advertising platforms, audience measurement services, content management systems, project and resource management and finance system.

The metrics we check first in a Brussels engagement

Sector knowledge in analytics is mostly knowing which definitions destroy a number when they drift. Before we design anything we go through the measures that matter to you and establish, in writing, exactly how each one is calculated and who owns that definition. The table below is the starting list for Brussels, derived from the industries that dominate here.

None of this is exotic. Where two definitions are both defensible, an organisation ends up carrying both, and the monthly difference between them becomes a recurring agenda item rather than a resolved question. The output of this stage is a measure dictionary: every KPI, its business definition, its owner, and the DAX that implements it.

What a first Power BI engagement looks like

We work the same way whether the client is a large group with nine existing workspaces: decisions first, sources second, model third, reports last. Reports built before the model are the single most common cause of rework.

1. Decision inventory, week 1We start from the recurring decisions that need numbers, not from the data that happens to be available. Who decides, on what cadence, and what currently blocks them. For a Brussels business in public sector, that usually surfaces three or four decisions worth building for and a dozen reports nobody needs.
2. Source profiling, weeks 1 to 2Each source system profiled for grain, volume, change tracking, quality and refresh window. case management systems, finance and ERP and HR and payroll are the usual candidates here. This is where unpleasant surprises belong, not in week ten.
3. Model build, weeks 3 to 7A star schema with conformed dimensions, measures written against the agreed definitions, and row-level security applied from the start. For public sector the argument that has to be settled first is normally statutory timescale compliance, where clock-stop rules differ per duty and must be modelled individually. Settle it before any report exists, not after two of them disagree.
4. Report build and validation, weeks 6 to 10Reports built with the people who will use them and validated line by line against the source of record until the numbers tie out. Disagreements get resolved and written down, never averaged.
5. Handover, weeks 10 to 14Workshops with your team, documentation in your own systems, and a thirty-day period where we fix what breaks while your people drive. ULB, VUB and nearby Leuven supply multilingual analytics talent, though EU institutions and consultancies compete hard for it.

What that costs

Build cost follows project size rather than report count, the number of source systems and their state drive almost all of it. These are the bands we quote in Belgium, and we publish them because a buyer cannot start an approval chain without a budget figure.

Running it afterwards is a separate line: €3,000 to €8,000 a month for a small estate, €8,000 to €20,000 for a mid-sized one, €20,000 to €50,000+ for a large multi-domain platform. Microsoft licensing is separate again, and is covered next.

Licensing: what Brussels organisations should actually pay

This is where money is most often wasted, in both directions. Power BI Pro is listed at around US$14 per user per month and Power BI Premium Per User at around US$24 following the 2025 price revision. Local list prices in sterling, euro and Swiss francs track those figures with regional adjustment, and enterprise agreements usually land below list.

The arithmetic that matters: F64 only becomes cheaper than per-user licensing somewhere in the region of 350 to 600 readers, depending on the discount you actually pay and whether you reserve capacity. Below that, Pro or PPU per user is normally the right answer, and buying capacity for prestige is a straightforward waste of money.

For larger Brussels organisations with hundreds of report consumers, a capacity SKU is usually the right answer, and which one depends on measured consumption rather than headcount. We profile workloads on a short-lived trial capacity before anyone signs.

Always price from the current Microsoft rate card for your region and agreement. Any figure in an article older than a quarter should be treated as an order of magnitude, not a quote.

Hiring in Brussels versus engaging a consultancy

This is a fair question and the honest answer is sometimes "hire". ULB, VUB and nearby Leuven supply multilingual analytics talent, though EU institutions and consultancies compete hard for it. Locally, a mid-level analytics engineer costs roughly €55,000 to €85,000, with Brussels at the upper end. An experienced external consultant runs at roughly €800 to €1,350 per day.

Where a Brussels client has told us they intend to build an internal team, we design for it from the start. The assumption throughout is that your team takes it over. Models are source-controlled and scriptable, naming follows a convention rather than a habit, documentation lands in your own wiki, and the measure dictionary is written to be read by whoever inherits it. Several clients have gone on to need us only for quarterly review, which is a perfectly good outcome.

Data residency and compliance for Brussels organisations

Most Belgian deployments land in West Europe, which is physically in the Netherlands, or in France Central. Microsoft has announced a Belgian datacentre region, so check current availability before committing to an architecture that assumes in-country residency, and in the meantime document the EU-but-not-Belgian position for your data protection officer. In practice, Brussels deployments normally use West Europe (Netherlands), with France Central (Paris) as the paired region.

Regulatory oversight relevant to analytics comes from the Data Protection Authority (APD / GBA) under the EU GDPR and the Belgian Data Protection Act of 2018, plus the sector bodies that matter here: FSMA for financial markets conduct supervision, National Bank of Belgium for prudential supervision and statistical reporting and APD / GBA for data protection enforcement.

• Belgium's federal structure means some reporting obligations sit with the regions (Flanders, Wallonia and Brussels) rather than nationally, which multiplies the datasets a single organisation must produce.
• Language legislation affects employee-facing systems: reporting used in employment contexts may need to be available in the language of the region where staff are employed.
• As the host of the EU institutions, Brussels has an unusual concentration of organisations working to EU-level reporting rules ahead of national implementation.

We cover this properly on the data governance and compliance page, and in more depth in our article on data governance for Brussels organisations.

How we deliver into Brussels

• Bilingual or trilingual stakeholder groups are the norm: plan for Dutch, French and English in the same programme.
• Works council and trade union consultation applies to systems that can monitor individual performance, similar to Germany.
• Many Belgian organisations operate as the European hub of a larger group, so local analytics has to reconcile with group reporting standards.

Delivery is remote-first with on-site workshops at the points where being in the room genuinely helps: definition sessions, validation and go-live. We work in Dutch, French, German and English, and stakeholder sessions run in whichever of those the room prefers.

How a Brussels organisation actually buys this

Most consultancy pages stop at what the work is and leave the buying process to email. Multilingual and split between local and group decision-making, with a federal structure that multiplies the authorities involved. Brussels adds a layer of organisations procuring under EU institutional rules.

In the private sector: Many Belgian organisations are the European hub of a larger group, so a local sponsor agrees the requirement and a group procurement function runs the contracting. Documentation frequently has to exist in Dutch and French as well as English, and works council consultation applies to anything that could monitor individual performance.

In the public sector: Federal bodies publish on the Belgian e-Procurement platform, with above-threshold notices on TED. Flanders, Wallonia and the Brussels-Capital Region each run their own procurement for regional competences. The EU institutions in Brussels procure through their own calls and framework contracts, which are a separate discipline with longer timescales and heavier formal requirements.

Documents you should expect to request, and that any supplier worth shortlisting will have ready, are kbo / bce enterprise number and registration extract, attestations for social security (onss / rsz) and tax, routinely requested in public procurement, insurance certificates including professional indemnity and data processing agreement under eu gdpr article 28.

Our own entity details, insurance, processing agreements and contracting shapes are published on the procurement page, so your buying team can start without waiting for a reply.

Signals it is time to call someone

The usual triggers are two reports disagreeing on a headline number, an overnight refresh someone re-runs by hand each morning, a largest model that is one file owned by one person, finance still rebuilding the board pack in a spreadsheet, a legacy BI renewal whose price no longer makes sense, or a question about who can see a sensitive dataset that took a week to answer honestly. If two or more are true, a two to three week paid discovery will tell you what to do about it, and you keep the output whether or not you engage us further. Book a technical review, or read what we actually build:

We work across Belgium and deliver into neighbouring markets regularly. Nearby pages worth reading if your group has sites elsewhere: Namur, Wavre, Mons, Mechelen, Louvain-la-Neuve and Antwerp.

Frequently asked questions