Activities of head offices (SIC code 70100)
Activities of head offices is UK SIC code 70100. It sits in division 70 (Activities of head offices; management consultancy activities) of the SIC 2007 list. On the August 2026 Companies House register, 30,208 active UK companies list 70100 among their SIC codes. 25,982 of them list it first. That makes it the second most used code in its division.
30,208active UK companies list SIC 70100 among their codes on the public recordCompanies House · counts as of August 2026
SIC 70100 in numbers
30,208 companies is 0.58 per cent of the 5,190,464 active companies on the UK register. 70100 is the second most used of the 4 codes we track in division 70.
25,982 of the 30,208 put 70100 first, and only 4,226 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 24 per cent and the top five post towns hold 30 per cent, so the other 70 per cent sit across the rest of the country. A regional filter narrows the list without gutting it.
A worked example: 70100, registered office in London, incorporated in the last ninety days, from a pool of 30,208. 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 70100 companies, as leads
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On paper this division mixes corporate head offices with management consultancy. In practice the consultancy code swamps everything.
Related SIC codes
How to read SIC 70100
SIC 70100 reads as division 70 (activities of head offices; management consultancy activities), group 701, class 7010, then the full five digits, inside section M, professional, scientific and technical activities. A company picks its own codes, up to four, and Companies House does not check them, so 70100 is the company's own description of what it does, and 25,982 list it first where 30,208 list it anywhere.
Who sells into division 70
The consultancy crowd splits in two: personal service companies and real firms.
About SIC 70100
How many UK companies use SIC code 70100?
30,208 active UK companies list 70100 (Activities of head offices) among their registered SIC codes. Each company may register up to four. Of those, 25,982 put it first. The figures come from the August 2026 Companies House register snapshot, and count active companies only.
Why do so many contractors register under SIC code 70229?
It is broad enough to cover almost any professional advisory work. That made it the default for interim managers and consultants setting up personal service companies. Nobody vets it. The code is simply what the director declared at incorporation or on a confirmation statement. That breadth is also why a list built on 70229 alone mixes real consultancies with individual contractors from every industry.
Find UK SIC 70100 companies
Filter Companies House by this code. Each lead arrives with a working website and a real email, or you pay nothing. 100 free leads, no card.
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