Combined Facilities Support Activities

Details for Combined Facilities Support Activities

The wider SIC framework has been part of UK business statistics since the 1940s, and Companies House previously used the older 4-digit SIC 2003 codes before moving during 2008–2009 to the present 5-digit SIC 2007 structure, which is aligned with European NACE Rev. 2 standards. This classification covers companies whose practical work is best described by the official label combined facilities support activities.

In plain English, it is likely to include specialist operators, service providers, trading companies, administrative businesses and organisations whose work fits this defined economic activity, with day-to-day activity often involving client delivery, supplier relationships, operational processes, contracts, staff time, equipment and sector-specific administration. As of June 2026, 81100 ranks 125th out of 731 five-digit SIC codes, with 12,399 UK companies registered under it, making it a sizeable and established area of UK business activity. The four-code limit at Companies House is useful here, as many businesses use one code for their main trade and additional SIC codes for secondary services, side operations or closely related commercial functions.

The short official label is deliberately compact, so the real-world businesses behind it may describe themselves using broader phrases such as combined facilities support activities services, specialist combined facilities support activities providers, operators in related supply chains, or companies supporting customers who need this form of commercial activity. The code therefore works best as a structured indicator of economic activity rather than a complete profile of the company, because many organisations evolve, add services or reorganise after incorporation. Taken together with location, age, filing history and other SIC selections, this code can help build a more rounded view of the market in which the company appears to operate.

In practical terms, the code helps separate this kind of work from neighbouring sectors that may look similar in search results but involve different trading models, assets, customers or regulatory expectations. It is also useful for analysts, lenders, marketers and public bodies because it gives a consistent way to group companies by declared activity, even though the description is not a licence, approval or guarantee of what a company actually does day to day.

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