Buying and selling of own real estate (SIC code 68100)
Property holding companies live here. Most are buy-to-let SPVs, property investment ltds and small portfolios. Letting on a fee basis is 68209. Building new schemes is 41100.
275,961active UK companies list SIC 68100 among their codes on the public recordCompanies House · counts as of August 2026
SIC 68100 in numbers
275,961 companies is 5.3 per cent of the 5,190,464 active companies on the UK register. 68100 is the second most used of the 6 codes we track in division 68.
247,689 of the 275,961 put 68100 first, and only 28,272 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 22 per cent and the top five post towns hold 29 per cent, so the other 71 per cent sit across the rest of the country. A regional filter narrows the list without gutting it.
A worked example: 68100, registered office in London, incorporated in the last ninety days, from a pool of 275,961. 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 68100 companies, as leads
Live rows from the enriched public record. Email addresses are withheld until you sign up. Phone numbers come with paid plans.
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Real estate is one of the busiest corners of the public record, and most of it is not estate agency. The dominant code is 68209, letting and operating of own or leased property.
Related SIC codes
How to read SIC 68100
SIC 68100 reads as division 68 (real estate activities), group 681, class 6810, then the full five digits, inside section L, real estate activities. A company picks its own codes, up to four, and Companies House does not check them, so 68100 is the company's own description of what it does, and 247,689 list it first where 275,961 list it anywhere.
Who sells into division 68
So many entries are single-property vehicles that segmentation matters more here than almost anywhere else. Mortgage brokers, bridging lenders, insurance intermediaries, accountants and block management software firms all work the landlord codes.
About SIC 68100
Why do BTL landlords file SIC 68100?
Tax. Holding buy-to-let property in a ltd company brings back mortgage interest relief that private landlords lost. Firms file 68100 when the company holds property as stock. They file 68209 when they let it on long-term contracts.
How do I tell SIC 68100 landlords from developers?
Developers file 41100 (development of building projects). Buy-to-let landlords file 68100 (buying and selling) or 68209 (letting). Some companies file all three. Accounting category is a good tiebreak, since developers are usually the larger entity.
Find UK SIC 68100 companies
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