PROFESSIONAL SERVICES Companies in Ireland
Approximately 87,411 real businesses classified under Professional, Scientific and Technical Activities in Ireland, with officer, shareholder and beneficial ownership records sourced directly from official government registries.
Approximately 87,411 real businesses operate in the Professional, Scientific and Technical Activities sector across Ireland. 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.
166 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 Ireland follow the same national framework as every other sector there.
Full Ireland beneficial ownership overviewTop Professional, Scientific and Technical Activities Companies in Ireland
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 Ireland, as of the last reconciliation.
Section M is 17% of the Ireland register by entity count and its 1st largest sector — see all sectors.
Analysis
What this data actually tells you
Professional, Scientific and Technical Activities in Ireland includes professions with statutorily protected titles, not just voluntary professional associations. ‘Architect’ specifically is a legally protected title under Section 18 of the Building Control Act 2007 — only architects registered with the RIAI (Royal Institute of the Architects of Ireland), the statutory competent authority for the profession, can legally use it, and the RIAI maintains the actual Register of Architects that confirms this.
Solicitors are regulated separately through the Law Society of Ireland, established in 1830 as the profession’s educational, representative and regulatory body. For verification, an Irish professional-services counterparty’s actual standing depends on checking the relevant statutory or professional register directly — the RIAI’s Register of Architects for architects, the Law Society for solicitors — neither of which shows up in a standard company filing, and for architects specifically, using the protected title without registration is itself a legal violation worth checking for.
Ireland 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, Ireland. 92 entities with no disclosed headcount are not counted in any band.
Who uses Ireland professional, scientific and technical activities ownership data
The three checks this sector's data is most often run for.
RIAI architect registration check
The title 'Architect' is legally protected in Ireland under Section 18 of the Building Control Act 2007 — only RIAI (Royal Institute of the Architects of Ireland)-registered architects can use it, and RIAI is the statutory competent authority for the profession and its Register of Architects.
Law Society of Ireland solicitor registration check
The Law Society of Ireland, established in 1830, is the educational, representative and regulatory body for solicitors — a distinct professional register from company incorporation, and the actual confirmation that a named solicitor 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-register standing rather than a conventional balance sheet.
Sub-sectors within Professional, Scientific and Technical Activities
SIC divisions inside this section, each with its own Ireland company directory.
Legal and accounting activities
4,627 companies
Activities of head offices; management consultancy activities
44,168 companies
Architectural and engineering activities; technical testing and analysis
7,982 companies
Scientific research and development
2,221 companies
Advertising and market research
6,392 companies
Other professional, scientific and technical activities
23,140 companies
Veterinary activities
835 companies
Get complete shareholder and officer records, ultimate beneficial owner resolution, and ongoing ownership monitoring for Ireland companies — via API or a bulk data feed.
Frequently Asked Questions
How many Professional, Scientific and Technical Activities companies are registered in Ireland?
Approximately 87,411 real businesses operate under Professional, Scientific and Technical Activities in Ireland.
What does the Professional, Scientific and Technical Activities sector include in Ireland?
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 Ireland?
The same national framework applies here as for every other sector in Ireland — there is no sector-specific beneficial-ownership regime for Professional, Scientific and Technical Activities.
Can I see all industries present in Ireland?
Yes — the Ireland company directory lists every industry with recorded companies for that jurisdiction, alongside the full beneficial-ownership overview for Ireland.
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 Ireland 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 Ireland going forward, flagging updates as they are filed instead of requiring a manual recheck.
All industries in Ireland
Every NACE section on this register, with live company counts.