Division 63 of the UK SIC 2007 list. It holds 3 codes, listed in full below with the number of active UK companies filed under each.
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.
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.
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.
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.
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