Top PROFESSIONAL SERVICES Companies in Belgium
Approximately 546,871 real businesses classified under Professional, Scientific and Technical Activities in Belgium, with officer, shareholder and beneficial ownership records sourced directly from official government registries.
Approximately 546,871 real businesses operate in the Professional, Scientific and Technical Activities sector across Belgium. Consultants, lawyers, architects, and researchers make up a sector regulated twice over — once by company law, once by their own professional body. Legal, accounting, tax, management consulting, engineering, advertising, and R&D firms are frequently structured as partnerships or professional corporations, which layers licensing-body oversight on top of standard company registration rather than replacing it.
126 companies in this sector are indexed on Zavia so far, part of a continually growing dataset.
Beneficial-ownership and registration rules for Professional, Scientific and Technical Activities companies in Belgium follow the same national framework as every other sector there.
Full Belgium beneficial ownership overviewTop Professional, Scientific and Technical Activities Companies in Belgium
Live from the register. Every row opens the full record — officers, shareholders and resolved group structure.
Data Coverage
Record counts for SIC Code M in Belgium, as of the last reconciliation.
Section M is 14% of the Belgium register by entity count and its 2nd largest sector — see all sectors.
Analysis
What this data actually tells you
Professional, Scientific and Technical Activities in Belgium includes professions where mandatory registration with a professional order, not just company incorporation, is the actual precondition for practice. Anyone building a career as an architect must register with the Orde van Architecten (Order of Architects), with annual contribution rates set each year by the competent federal minister for SMEs — the 2026 rates were set by Minister Éléonore Simonet. Lawyers similarly register with their relevant bar association — the Orde van Vlaamse Balies for Dutch-speaking lawyers — a professional register entirely separate from any company the professional operates through.
For verification, a Belgian professional-services counterparty’s actual standing depends on checking the relevant professional order directly: an architect’s registration on the Orde van Architecten’s table, or a lawyer’s bar-association membership, neither of which shows up in a standard company filing. Since these professions can also practise through incompatible-activity restrictions and specific professional-conduct rules set by their orders, confirming standing means checking the order’s own records, not inferring authorisation from company registration alone.
Belgium Professional, Scientific and Technical Activities, by the register
Charts render from live counts. Modules are suppressed where coverage is too thin to be meaningful.
Entities by sub-sector
SIC division level, live from official registries.
Active vs. inactive
Section M entities currently on the register as active, vs. struck off or dormant.
Company size, by disclosed headcount
By number of employees on file, Section M, Belgium. 452 entities with no disclosed headcount are not counted in any band.
Who uses Belgium professional, scientific and technical activities ownership data
The three checks this sector's data is most often run for.
Orde van Architecten registration check
Anyone building a career as an architect in Belgium must register with the Orde van Architecten (Order of Architects) — a mandatory professional registration separate from company incorporation, with annual contributions set by the competent minister (set for 2026).
Bar association (Orde van Vlaamse Balies) check
Lawyers in Belgium’s Flemish community register with the Orde van Vlaamse Balies — a distinct professional register from company registration, and the actual confirmation that a named lawyer is authorised to practise.
Fee-based, low-asset exposure
Professional and technical service firms typically carry little in the way of fixed assets, so lenders and counterparties assessing this sector look mainly at partner composition, client concentration and professional-order standing rather than a conventional balance sheet.
Sub-sectors within Professional, Scientific and Technical Activities
SIC divisions inside this section, each with its own Belgium company directory.
Legal and accounting activities
84,699 companies
Activities of head offices; management consultancy activities
239,459 companies
Architectural and engineering activities; technical testing and analysis
100,721 companies
Scientific research and development
7,570 companies
Advertising and market research
65,556 companies
Other professional, scientific and technical activities
125,770 companies
Veterinary activities
10,776 companies
Get complete shareholder and officer records, ultimate beneficial owner resolution, and ongoing ownership monitoring for Belgium companies — via API or a bulk data feed.
Frequently Asked Questions
How many Professional, Scientific and Technical Activities companies are registered in Belgium?
Approximately 546,871 real businesses operate under Professional, Scientific and Technical Activities in Belgium.
What does the Professional, Scientific and Technical Activities sector include in Belgium?
Consultants, lawyers, architects, and researchers make up a sector regulated twice over — once by company law, once by their own professional body. Legal, accounting, tax, management consulting, engineering, advertising, and R&D firms are frequently structured as partnerships or professional corporations, which layers licensing-body oversight on top of standard company registration rather than replacing it.
How is company ownership disclosed for Professional, Scientific and Technical Activities companies in Belgium?
The same national framework applies here as for every other sector in Belgium — there is no sector-specific beneficial-ownership regime for Professional, Scientific and Technical Activities.
Can I see all industries present in Belgium?
Yes — the Belgium company directory lists every industry with recorded companies for that jurisdiction, alongside the full beneficial-ownership overview for Belgium.
Can I see Professional, Scientific and Technical Activities companies in other countries?
Yes — the Professional, Scientific and Technical Activities sector directory lists every country with recorded Professional, Scientific and Technical Activities companies on Zavia.
Can Zavia monitor changes to Professional, Scientific and Technical Activities companies in Belgium over time?
A directory listing is a snapshot, not a live feed. Zavia's monitoring API tracks changes to registered shareholders, officers, and group structure for Professional, Scientific and Technical Activities companies in Belgium going forward, flagging updates as they are filed instead of requiring a manual recheck.
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