Manufacture of basic iron and steel and of ferro-alloys (SIC code 24100)
Manufacture of basic iron and steel and of ferro-alloys is UK SIC code 24100. It sits in division 24 (Manufacture of basic metals) of the SIC 2007 list. On the August 2026 Companies House register, 730 active UK companies list 24100 among their SIC codes. 704 of them list it first. That makes it the second most used code in its division.
730active UK companies list SIC 24100 among their codes on the public recordCompanies House · counts as of August 2026
SIC 24100 in numbers
730 companies is 0.01 per cent of the 5,190,464 active companies on the UK register. 24100 is the second most used of the 2 codes we track in division 24.
704 of the 730 put 24100 first, and only 26 carry it as a second, third or fourth code. The code on its own is a clean filter.
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 8 per cent and the top five post towns hold 22 per cent, so the other 78 per cent sit across the rest of the country. A regional filter narrows the list without gutting it.
A worked example: 24100, registered office in London, incorporated in the last ninety days, from a pool of 730. 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 24100 companies, as leads
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Primary metals: making iron, steel and the first products formed from them. Two codes clear any size, 24200 for steel tubes and pipes and 24100 for basic iron, steel and ferro-alloys.
Related SIC codes
How to read SIC 24100
SIC 24100 reads as division 24 (manufacture of basic metals), group 241, class 2410, then the full five digits, inside section C, manufacturing. A company picks its own codes, up to four, and Companies House does not check them, so 24100 is the company's own description of what it does, and 704 list it first where 730 list it anywhere.
Who sells into division 24
Industrial equipment and furnace suppliers, energy brokers and heavy logistics firms sell into this division, and the energy brokers matter more here than almost anywhere: this is one of the most energy-intensive activities on the public record.
About SIC 24100
How many UK companies use SIC code 24100?
730 active UK companies list 24100 (Manufacture of basic iron and steel and of ferro-alloys) among their registered SIC codes. Each company may register up to four. Of those, 704 put it first. The figures come from the August 2026 Companies House register snapshot, and count active companies only.
What is the difference between division 24 and division 25?
Division 24 is making the metal itself, and division 25 is making things out of it: structural steelwork, tanks, tools, fabrication. Division 25 has many times more companies, so if you are selling to metalworking businesses in general that is almost certainly the division you want.
Find UK SIC 24100 companies
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