Country view · 5,862 companies

Law firms in the UK

5,862 law firms in the UK publish an email address on their own website, as of September 29, 2026. 12% name London on their website, more than any other UK city, and WordPress runs on 65% of their websites.

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Searching is free. You only spend allowance when you export.

Where they are

Where UK law firms are

Counted by the city each company's own website names. London leads with 711; a company that names two cities counts in both.

UK law firms by city (companies)
London	711 (12%)
Manchester	144 (2%)
Birmingham	90 (2%)
Leeds	66 (1%)
Glasgow	64 (1%)
Liverpool	53 (under 1%)
Bristol	48 (under 1%)
Brighton	42 (under 1%)
Cardiff	40 (under 1%)
Edinburgh	39 (under 1%)

Of the 1,347 that print a Companies House number, 96% are registered in England and Wales, 3% are registered in Scotland and under 1% are registered in Northern Ireland.

Contact routes

How law firms in the UK can be reached

Every company here publishes an email address. These are the other routes and signals their websites carry.

Company LinkedIn page34% · 1,977

Contact form29% · 1,707

A second route for when email goes unanswered.

Phone number18% · 1,032

Hiring or links a careers page21% · 1,202

Growing firms buy more. A useful first filter.

Companies House number23% · 1,347

VAT number9% · 551

Email and websites

What law firms in the UK run on

Who hosts their email decides which spam filter reads your message. What their site is built on says what else they already pay for.

Email provider

Email providers of law firms in the UK
Microsoft 365	1,003 (17%)
Mimecast	168 (3%)
Google Workspace	158 (3%)
Self-hosted	116 (2%)
Other or unknown	4,417 (75%)

Read from each domain's public MX record. If most of your list is on one provider, warm up a mailbox on that provider first. Filter by provider in the lead finder.

Built with

WordPress 65%
Contact Form 7 21%
Elementor 15%
WooCommerce 9%
Divi 5%
Gravity Forms 5%
Wix 5%
Joomla 4%

Share of these companies whose homepage loads each technology. Google Analytics is left out because nearly everyone runs it.

Founding year

How established law firms in the UK are

955 of them (16%) state a founding year on their site. This is how those split.

Law firms in the UK by founding year
Before 1980	250 (26%)
1980 to 1999	248 (26%)
2000 to 2009	206 (22%)
2010 to 2014	138 (14%)
2015 to 2019	80 (8%)
2020 or later	33 (3%)

How they describe themselves

What law firms in the UK call themselves

Some sites tell search engines exactly what kind of business they are, in structured data. These are the types they declare most often, which shows the mix inside this category.

Declared business types among law firms in the UK (companies)
Legal service	619 (11%)
Professional service	33 (under 1%)
Attorney	22 (under 1%)
Notary	10 (under 1%)

Outreach playbook

How to reach law firms in the UK

What we have learned about emailing law firms. The numbers above tell you how many there are; this is how to get a reply.

Law firms buy on trust and risk. Lead with compliance, confidentiality and time recovered on non-billable work, and never with growth hacks. Formal but brief reads best.

Who to email

Managing partner at firms under 10 fee earners, who approves any spend.
Practice manager or COO at mid-sized firms, the real owner of software and suppliers.
Head of business development or marketing at firms large enough to have one.

What they will say back

“Our IT provider handles anything technical.”: Offer to talk to the IT provider directly. It removes work from the partner and often speeds the decision.
“We cannot risk client confidentiality.”: Explain in plain terms what data you touch and what you do not. If you never see matter data, say so first.
“Send it to our marketing team.”: Ask for a name. A warm handoff from a partner converts far better than a new cold email.

A first email that fits a UK firm

Subject: non-billable time at [firm]

Dear [first name], firms of [firm]'s size tell us that chasing enquiries and follow-ups eats hours no one can bill. We help practices automate that part without touching matter data. Would a short overview be useful?

Replace the bracketed parts per company. In a Warmerly campaign they fill from the lead's own fields.

When to send

Early morning before court and client meetings, or end of day. Avoid Monday mornings, when diaries are set.

Questions

Law firms in the UK: common questions

How many law firms are there in the UK?

Warmerly's lead database holds 5,862 law firms in the UK that publish an email address on their own website, counted on September 29, 2026. That is not every such business in the country. It is the ones whose site we crawled and that list a way to contact them by email, which is the number that matters for outreach.

Which email provider do most law firms in the UK use?

Microsoft 365 runs email for 17% of them, followed by Mimecast at 3%. It is read from each domain's public MX records. It matters for cold email because Google and Microsoft filter differently, so a sending mailbox on the same provider as most of your list is worth warming up first.

Which UK city has the most law firms?

London, named by 711 of them, then Manchester (144) and Birmingham (90). The count is companies whose website names the city, so one business can appear under more than one.

Can I get a list of law firms in the UK?

Yes. Searching the database in Warmerly is free, and you see the same count as this page before spending anything. Exporting or adding companies to a campaign uses your plan's monthly lead allowance. Every result is a business contact route the company publishes itself, and any company that has asked to be removed is excluded. This page shows totals only, never individual companies.

More law firms

Other industries in UK

Where the numbers come from

Search 5,862 law firms in the UK

Filter them by size, founding year, technology and hiring, see what each record holds, then send from warmed-up mailboxes in the same tool.

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