BUSINESS SUPPORT AND STAFFING Companies in United Kingdom: Full List
Approximately 1,890,706 real businesses classified under Administrative and Support Service Activities in United Kingdom, with officer, shareholder and beneficial ownership records sourced directly from official government registries.
Approximately 1,890,706 real businesses operate in the Administrative and Support Service Activities sector across United Kingdom. The company cleaning your office and the company you signed the contract with are often not the same legal entity. Staffing, security, cleaning, call-centre, and travel-agency services routinely operate through franchise or master-agency arrangements, meaning the locally branded operator answering your calls is not necessarily owned by the brand you recognise.
229 companies in this sector are indexed on Zavia so far, part of a continually growing dataset.
Beneficial-ownership and registration rules for Administrative and Support Service Activities companies in United Kingdom follow the same national framework as every other sector there.
Full United Kingdom beneficial ownership overviewTop Administrative and Support Service Activities Companies in United Kingdom
Live from the register. Every row opens the full record — officers, shareholders and resolved group structure.
Data Coverage
Record counts for SIC Code N in United Kingdom, as of the last reconciliation.
Section N is 12% of the United Kingdom register by entity count and its 3rd largest sector — see all sectors.
Analysis
What this data actually tells you
Administrative and Support Service Activities in the UK includes a heavily licensed sub-sector: private security. Most frontline security roles — door supervisor, security guard, CCTV operator — legally require an individual licence from the Security Industry Authority (SIA), a Home Office-sponsored regulator, obtained through approved training plus criminality and identity checks, at a 2026 standard application fee of £184. Most SIA licences run for three years.
The licensing standard tightened further in 2026: renewals now require mandatory refresher qualifications, stricter first-aid prerequisites, and expanded counter-terrorism and vulnerability-awareness training. For verification, a UK security or staffing counterparty’s company registration says nothing about whether its actual frontline staff hold current, individually-issued SIA licences — that status sits with the regulator, checkable per person, not per company.
United Kingdom Administrative and Support Service 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 N entities currently on the register as active, vs. struck off or dormant.
Company size, by disclosed headcount
By number of employees on file, Section N, United Kingdom. 3,570 entities with no disclosed headcount are not counted in any band.
Who uses United Kingdom administrative and support service activities ownership data
The three checks this sector's data is most often run for.
SIA licence verification
Most frontline UK private-security roles — door supervisor, security guard, CCTV operator — legally require a Security Industry Authority (SIA) licence, valid for three years, requiring criminality and identity checks plus approved training. A registered security company can still be employing unlicensed frontline staff.
2026 licensing tightening
2026 brought mandatory refresher qualifications for licence renewals, stricter first-aid prerequisites, and expanded counter-terrorism and vulnerability-awareness training — real, dated changes worth checking a security counterparty’s current compliance against.
Contract-concentration and payroll exposure
Administrative and support service firms, especially staffing and facilities providers, often depend heavily on a small number of client contracts, which shapes how lenders assess revenue-concentration risk in the sector.
Sub-sectors within Administrative and Support Service Activities
SIC divisions inside this section, each with its own United Kingdom company directory.
Rental and leasing activities
86,794 companies
Employment activities
190,896 companies
Travel agency, tour operator and other reservation service and related activities
73,578 companies
Security and investigation activities
75,424 companies
Services to buildings and landscape activities
216,320 companies
Office administrative, office support and other business support activities
1.3M+ companies
Get complete shareholder and officer records, ultimate beneficial owner resolution, and ongoing ownership monitoring for United Kingdom companies — via API or a bulk data feed.
Frequently Asked Questions
How many Administrative and Support Service Activities companies are registered in United Kingdom?
Approximately 1,890,706 real businesses operate under Administrative and Support Service Activities in United Kingdom.
What does the Administrative and Support Service Activities sector include in United Kingdom?
The company cleaning your office and the company you signed the contract with are often not the same legal entity. Staffing, security, cleaning, call-centre, and travel-agency services routinely operate through franchise or master-agency arrangements, meaning the locally branded operator answering your calls is not necessarily owned by the brand you recognise.
How is company ownership disclosed for Administrative and Support Service Activities companies in United Kingdom?
The same national framework applies here as for every other sector in United Kingdom — there is no sector-specific beneficial-ownership regime for Administrative and Support Service Activities.
Can I see all industries present in United Kingdom?
Yes — the United Kingdom company directory lists every industry with recorded companies for that jurisdiction, alongside the full beneficial-ownership overview for United Kingdom.
Can I see Administrative and Support Service Activities companies in other countries?
Yes — the Administrative and Support Service Activities sector directory lists every country with recorded Administrative and Support Service Activities companies on Zavia.
Can Zavia monitor changes to Administrative and Support Service Activities companies in United Kingdom 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 Administrative and Support Service Activities companies in United Kingdom going forward, flagging updates as they are filed instead of requiring a manual recheck.
All industries in United Kingdom
Every NACE section on this register, with live company counts.