UK company counts · Legal
Growing law firms in London (added 10 or more staff)
About 20 law firms in London added 10 or more staff between their last two filed accounts, according to accounts filed up to 24 October 2026 (register of 1 September 2026).
Accounts filed up to 24 October 2026 Register of 1 September 2026
The list behind the number
Which companies these are, with names, company numbers, registered addresses and each dated headcount, is what the report is for. Here they stay hidden.
| Company | Location | Incorporated | Employees |
|---|
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Growing law firms in London, every Monday
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By size: legal in London
| Employees | Companies | Share | Legal, UK |
|---|---|---|---|
| Micro 0 to 9 | about 4,900 | 63% | 64% |
| Small 10 to 49 | about 300 | 4% | 7% |
| Medium 50 to 249 | about 30 | under 1% | 1% |
| Large 250 or more | fewer than 10 | under 1% | under 1% |
| No figure filed not known | about 2,500 | 32% | 28% |
| All active companies | about 7,800 | 100% | 100% |
| Grew by 10 or more staff any size | about 20 | under 1% | 1% |
Shares are worked out from the rounded counts. No figure filed means the company has not filed a machine-readable headcount: it may be large or small, and it is never counted as zero. A filed 0 is a real answer and sits under micro.
What is counted
- Sector
- Solicitors, barristers, and patent, copyright and other legal activities (SIC 69.10). Companies and LLPs are counted; traditional partnerships are not on the Companies House register. SIC 2007: 69101 (Barristers at law); 69102 (Solicitors); 69109 (Activities of patent and copyright agents; other legal activities n.e.c.).
- Companies
- Active companies on the Companies House register, placed by registered office postcode, which is approximate near a border. A company with several of these codes counts once.
- Headcounts
- 68% of these companies have an employee count in accounts we have read. The rest are shown as No figure filed, never as zero.
- Dates
- Each company's size is from its latest filed accounts, read up to 24 October 2026. Accounts are filed up to nine months after the year end, so a figure can describe a year that ended some time ago.
- Rounding
- Counts are rounded to two significant figures, and under 20 are shown only as fewer than 10 or fewer than 20, so no count points at a single company. The report is exact.
Questions about these figures
How many law firms in London are growing?
About 20 law firms in London added 10 or more staff between their last two filed accounts, according to accounts filed up to 24 October 2026 (register of 1 September 2026). Counts are rounded to two significant figures, and are for active companies only.
How is company size measured?
By the average number of employees each company states in its latest filed accounts, read from the tagged figure in accounts filed electronically. The bands count employees only: micro 0 to 9, small 10 to 49, medium 50 to 249 and large 250 or more. That is not the Companies Act size test, which also uses turnover and balance sheet. Growing means at least 10 more employees than the year before, both years taken from the same filing. 68% of law firms in London have filed a figure; the rest are counted as No figure filed, never as zero.
How up to date is this?
The register is the Companies House snapshot of 1 September 2026, and new accounts are read every day; these figures use accounts filed up to 24 October 2026. Each company's headcount is as of its own accounts date, which can be a year or more before the day it was filed.
Can I download the list?
Yes. The list of these companies, with names, company numbers, registered addresses, SIC codes and every headcount with the date of its accounts, is a one-off CSV for £25 (up to 1,500 companies), with no account and no sales call. Unlimited, from £159 a month, allows up to 5,000 companies a list. The free search shows the same count, not which companies.
Which SIC codes count as legal?
Solicitors, barristers, and patent, copyright and other legal activities (SIC 69.10). Companies and LLPs are counted; traditional partnerships are not on the Companies House register. Codes counted: 69101 (Barristers at law); 69102 (Solicitors); 69109 (Activities of patent and copyright agents; other legal activities n.e.c.). A company counts if any of its SIC codes is in the set.