UK SIC 2007 · 62012
Business and domestic software development (SIC code 62012)
UK software firms file here. The code takes in bespoke development, SaaS products, internal tooling, and contract build work. Treat it as the standard 'tech company' code. It is not the same as 62020 (IT consultancy) or 63110 (data processing).
This is the technology heartland of the UK register. IT consultancy, code 62020, is the single most common choice. Contractors and consultancies alike use it. Software development on 62012 and the broad 62090, other IT service activities, follow close behind. Games developers have their own code, 62011. Computer facilities management is 62030. Much of the division is one-person limited companies. Developers, architects and consultants contract through them. So the same code can describe a global consultancy and one person working through a personal service company. Keep that in mind when you segment.
Related SIC codes
Who prospects SIC 62012 companies
Contractor-heavy sectors reward specialists, and this division has plenty. Accountants built around IR35 and personal service company compliance work it daily. So do professional indemnity insurers and recruiters placing contract and permanent engineers. SaaS vendors selling developer tooling, cloud services and productivity software treat division 62 as their core market. A new incorporation often means a first contract starts within weeks. That is when insurance and accounting get bought. Growth between filed accounts separates scaling agencies from steady contractors. Those growing firms are the ones ready for hiring, office space and larger software deals.
Lead generation for founders & owners →How to read SIC 62012
SIC 62012 is a five-digit code, and the digits are not arbitrary. The first two, 62, are the division, computer programming, consultancy and related activities. Add the third and you have group 620; 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.
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 62012 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 62012 are London (43,080), Manchester (2,195), Birmingham (1,356), Bristol (1,224), Glasgow (1,167). 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 62012 as a filter
110,075 companies is 2.1 per cent of the 5,190,464 active companies on the UK register, and ranks 62012 second most used of the 5 codes we track in division 62. 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.
89,176 companies put 62012 first and a further 20,899, 19 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 45 per cent of it, and London alone accounts for 39 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 62012 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: 62012, registered office in London, incorporated in the last ninety days, which turns a 110,075 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 62012 clusters in the UK
ACTIVE COMPANIES BY REGISTERED-OFFICE POST TOWN · COMPANIES HOUSE REGISTER, AUGUST 2026
SIC 62012 companies, as leads
Live rows from the enriched register. Email and phone values are withheld until you sign up.
Tell us the kind of company you sell to and we find them on the public record. One credit is one lead: the record, the director, a verified website and a verified email. If we cannot complete it, you are not charged. 25 free to start, no card.
About SIC 62012
Are SIC 62012 directors easy to find on LinkedIn?
Yes. Software founders have the best LinkedIn coverage of any UK SIC code. You can usually find 90%+ of director profiles. Add the verified email that ships with every lead and the outreach signal is as strong as it gets.
Are most SIC 62012 companies remote-first?
Since 2022, yes. The registered office is often the founder's home, not a real workplace. So do not read territory from the registered postcode alone here. Check the contact page on the company website as well.
Find UK SIC 62012 companies
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