Construction of commercial buildings (SIC code 41201)
Construction of commercial buildings is UK SIC code 41201. It sits in division 41 (Construction of buildings) of the SIC 2007 list. On the August 2026 Companies House register, 40,351 active UK companies list 41201 among their SIC codes. 33,492 of them list it first. That makes it the third most used code in its division.
40,351active UK companies list SIC 41201 among their codes on the public recordCompanies House · counts as of August 2026
SIC 41201 in numbers
40,351 companies is 0.78 per cent of the 5,190,464 active companies on the UK register. 41201 is the third most used of the 3 codes we track in division 41.
33,492 put 41201 first and 6,859, 17 per cent, list it in one of their other three slots. First code only gives the tighter list; any position gives more of them.
ACTIVE COMPANIES BY REGISTERED-OFFICE POST TOWN (WHERE THE PAPERWORK SITS, NOT NECESSARILY THE WORK) · COMPANIES HOUSE PUBLIC RECORD, AUGUST 2026
London is the largest cluster at 18 per cent and the top five post towns hold 24 per cent, so the other 76 per cent sit across the rest of the country. A regional filter narrows the list without gutting it.
A worked example: 41201, registered office in London, incorporated in the last ninety days, from a pool of 40,351. Each lead you get arrives with a working website and a real email, and the director's name when the record has one. If we cannot complete one, you pay nothing.
SIC 41201 companies, as leads
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Division 41 is one of the most used classifications on the UK register.
Related SIC codes
How to read SIC 41201
SIC 41201 reads as division 41 (construction of buildings), group 412, class 4120, then the full five digits, inside section F, construction. A company picks its own codes, up to four, and Companies House does not check them, so 41201 is the company's own description of what it does, and 33,492 list it first where 40,351 list it anywhere.
Who sells into division 41
The construction supply chain sells into this division from every side. Builders' merchants and tool hire firms want trade accounts.
About SIC 41201
How many UK companies use SIC code 41201?
40,351 active UK companies list 41201 (Construction of commercial buildings) among their registered SIC codes. Each company may register up to four. Of those, 33,492 put it first. The figures come from the August 2026 Companies House register snapshot, and count active companies only.
What is the difference between 41100 and the construction codes 41201 and 41202?
Code 41100 is for developing building projects. That means pulling together land, funding and consents, then subcontracting the build. Codes 41201 and 41202 are for physically constructing commercial and domestic buildings. A developer who also builds can list both. Small builders sometimes pick 41100 when 41202 fits better. The public record accepts either, but the right code helps insurers and lenders read the business correctly.
Find UK SIC 41201 companies
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