UK SIC 2007 · 91011
Library activities (SIC code 91011)
Library activities is UK SIC code 91011. It sits in division 91 (Libraries, archives, museums and other cultural activities) of the SIC 2007 list. On the August 2026 Companies House register, 520 active UK companies list 91011 among their SIC codes. 245 of them list it first.
Museums, 91020, historic sites and visitor attractions, 91030, botanical and zoological gardens, 91040, archives, 91012, and libraries, 91011. What stands out across all five is how few file their code in first position, typically around half or fewer. That is because most of these organisations are charities and trusts whose registered company describes itself more broadly, with the cultural activity listed second or third.
Who prospects SIC 91011 companies
Ticketing and visitor management systems, EPOS and retail for gift shops, exhibition design and fit-out, conservation supplies and specialist insurance all sell into this division. Funding and grant consultants do too. Buying decisions are usually committee-led and tied to funding cycles rather than to anything visible on the public record, so use the public record to find and qualify organisations rather than to time an approach.
Lead generation for commercial & B2B services →How to read SIC 91011
SIC 91011 is a five-digit code, and the digits are not arbitrary. The first two, 91, are the division, libraries, archives, museums and other cultural activities. Add the third and you have group 910; the fourth narrows it to a class, and the fifth to the subclass, which is the level Companies House actually asks a company to pick. The whole division sits under section R, arts, entertainment and recreation, the broadest tier there is. Reading a code left to right therefore goes from a whole sector down to one activity.
More on how SIC 91011 is built
A company chooses its own codes when it incorporates and can change them on any confirmation statement. It may list up to four, and Companies House does not check whether they are right. That is why 91011 is worth reading as a claim the company made about itself rather than as a verified fact, and why the first-position and any-position counts above differ.
Measured on the August 2026 register, the busiest registered-office post towns for 91011 are London (146), Manchester (14), Glasgow (10), Doncaster (9) and Leeds (8). Those are registered-office locations, which is where the paperwork sits rather than necessarily where the work happens, so treat them as where to start looking rather than as a service area.
Using SIC 91011 as a filter
520 companies is 0.01 per cent of the 5,190,464 active companies on the UK register, and ranks 91011 5th most used of the 5 codes we track in division 91. That is the pool before any filter. Whether it is a big market for you depends on what you sell, but it is the number every other filter on this page cuts down from.
More on filtering by SIC 91011
Only 245 of the 520 companies carrying 91011 put it first. The other 275, 53 per cent, list it behind another code, which usually means the business does more than one thing and files 91011 as a sideline. A search that matches the first code only will miss most of this population, so match on any of the four SIC positions and use a second filter to tighten it.
The population is concentrated: the five busiest post towns hold 36 per cent of it, and London alone accounts for 28 per cent. If you sell nationally, those five towns are most of the market. If you sell locally and you are not in one of them, expect a much smaller pool and widen the radius early.
In practice the code on its own is rarely the whole filter. Pair 91011 with an incorporation date to catch companies in their first months, when they are still choosing suppliers, or with a filing deadline to reach them while the year end is on their mind. A worked example for this code: 91011, registered office in London, incorporated in the last ninety days, which turns a 520 company pool into a list you can write to in an afternoon. Add the poor-website filter if what you sell is a website, or a recent change of officer if you sell to whoever just took the job. Every company you pull carries the Companies House record, the director's name, a verified website and a verified email, and the ones we cannot complete are not charged.
Where SIC 91011 clusters in the UK
ACTIVE COMPANIES BY REGISTERED-OFFICE POST TOWN · COMPANIES HOUSE REGISTER, AUGUST 2026
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About SIC 91011
How many UK companies use SIC code 91011?
520 active UK companies list 91011 (Library activities) among their registered SIC codes. Each company may register up to four. Of those, 245 put it first. The figures come from the August 2026 Companies House register snapshot, and count active companies only.
Why do so few museums list 91020 as their first SIC code?
Because the registered entity is usually a charitable company whose objects are broader than running a museum. The first code often describes the charity in general terms and the museum activity appears second. If you want the real population, match on any of the four SIC positions rather than the first.
Are local authority museums and libraries on the Companies House register?
Not as such. Council-run services sit inside the local authority, which is not a registered company. What you will find are the charitable trusts that many councils created to run their cultural services, and independent organisations. Expect the public record to show a meaningful part of the sector rather than all of it.
Find UK SIC 91011 companies
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