UK SIC 2007 · 63990
Other information service activities n.e.c. (SIC code 63990)
Other information service activities n.e.c. is UK SIC code 63990. It sits in division 63 (Information service activities) of the SIC 2007 list. On the August 2026 Companies House register, 22,990 active UK companies list 63990 among their SIC codes. 14,737 of them list it first. That makes it the most used code in its division.
Division 63: Information service activities
Division 63 is for businesses selling information infrastructure and online audiences, not bespoke IT work. Code 63110 covers data processing, hosting and related activities. That runs from data centre operators to hosting resellers and cloud providers. Code 63120, web portals, is home to content websites, comparison and directory sites, marketplaces and app businesses that earn from the traffic they attract. The catch-all 63990 takes the rest, and in practice it holds a mixed crowd of data, research and online information firms. The division sits next to software development in 62, but stays separate from it.
Related SIC codes
Who prospects SIC 63990 companies
Hosting and data firms buy racks, bandwidth and compliance. Data centre space providers, connectivity carriers, backup and security vendors and GDPR consultants all target 63110 companies. Portal and marketplace firms draw a different crowd. SEO and content agencies, ad tech sales teams and affiliate networks all chase sites with an audience. Accountants and R&D tax advisers work the whole division. A new 63120 company often means a site is being commercialised for the first time. Rising accounts at a hosting firm point to infrastructure spend. Both are clean, well-timed triggers for outreach.
Lead generation for founders & owners →How to read SIC 63990
SIC 63990 is a five-digit code, and the digits are not arbitrary. The first two, 63, are the division, information service activities. Add the third and you have group 639; 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 J, information and communication, 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 63990 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 63990 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 63990 are London (7,775), Whitehills Business Park (586), Manchester (324), Birmingham (299) and Blackpool (285). 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 63990 as a filter
22,990 companies is 0.44 per cent of the 5,190,464 active companies on the UK register, and ranks 63990 most used of the 4 codes we track in division 63. 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 63990
14,737 companies put 63990 first and a further 8,253, 36 per cent, list it in one of their other three SIC slots. That gap is the difference between a tight list and a broad one. First-code-only is the safer filter when you are writing to them; matching any position is worth it when you need the volume.
The population is concentrated: the five busiest post towns hold 40 per cent of it, and London alone accounts for 34 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 63990 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: 63990, registered office in London, incorporated in the last ninety days, which turns a 22,990 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 63990 clusters in the UK
ACTIVE COMPANIES BY REGISTERED-OFFICE POST TOWN · COMPANIES HOUSE REGISTER, AUGUST 2026
SIC 63990 companies, as leads
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About SIC 63990
How many UK companies use SIC code 63990?
22,990 active UK companies list 63990 (Other information service activities n.e.c.) among their registered SIC codes. Each company may register up to four. Of those, 14,737 put it first. The figures come from the August 2026 Companies House register snapshot, and count active companies only.
Is a web hosting company 63110 or 62090?
Use 63110, data processing, hosting and related activities. It is the specific and better fit for hosting providers, data centres and cloud infrastructure firms. Code 62090 is a general IT services code, and some hosts use it anyway. Companies House will not object either way. If the company also does IT support or development, it can hold codes from both divisions.
What kind of business should register 63120, web portals?
Code 63120 suits companies running websites or apps where the audience and the content are the value. That means comparison sites, online directories, marketplaces, forums and content platforms earning from ads, subscriptions or commission. If you build websites for clients, that is division 62 work. As always, the code is self-declared, capped at four per company and amendable on a CS01.
Find UK SIC 63990 companies
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