List of Advertising Companies in the UK

Last updated 21 October 2026

There are 36,206 advertising companies in the UK, one in every 244 UK companies. Most of them are small: nine in ten have one to four people, and only 357 firms employ 50 people or more. Three in four of all advertising firms are based in London, South East, North West, East of England and West Midlands. Below you find the largest advertising firms in the UK, the regions where they cluster, how many started this year and which are the oldest. The full list with addresses, phone numbers and email is in our UK company database or through the Companies House API.

36,206 companies indexed · Data counted on 21 October 2026

Companies36,2061 in244 UK companiesRegions12Largest regionLondon 13,381Sole traders3%Employees1-4 (90%)Revenue< $100K (63%)Email12%Phone24%Website28%

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A live view of all 36,206 advertising firms, sorted by revenue. Narrow it by region, city, employee size, revenue, legal form or founding year, or search a firm by name.

Wpp PLCWpp PLC

	Company Name	Country	City	Address 1	State/Province	Postal Code	Website	Founding Year	Yearly Revenue in U.S. Dollars	Employees Total	Business Legal Type - Description	Number of Companies in Group	Company Registration Number
1	Wpp PLC	Unitedkingdom	Saint-hélier	22 Grenville Street	Saint Helier	JE4 8PX	N/A	2012	$17,920,931,900	103,277	Corporation	1841	111714
2	Dentsu Group INC.	Unitedkingdom	Hampstead	20 Triton Street	London	NW1 3BF	bit.*****	2001	$9,176,956,530	318	Foreign company	995	FC023175
3	Facebook UK LTD	Unitedkingdom	Hampstead	Fao Lee Baker	London	NW1 3FG	facebook.*****	2007	$3,942,802,870	5,679	Corporation	189	06331310
4	Dazn Group LIMITED	Unitedkingdom	West Kensington	12 Hammersmith Grove	London	W6 7AP	dazn.*****	2007	$3,186,700,000	3,101	Corporation	21	06324278
5	Job And Talent Holding LIMITED	Unitedkingdom	Monument-aldgate-fenchurch Street-tower Hill	12 New Fetter Lane	London	EC4A 1JP	N/A	2016	$1,924,998,723	79,147	Corporation	186	10084917
6	Mms UK Holdings LIMITED	Unitedkingdom	West Kensington	1st Floor 2 Television Centre	London	W12 7FR	N/A	2003	$1,754,471,888	9,547	Corporation	1110	04982095
7	Wpp Media UK LIMITED	Unitedkingdom	Balham	Sea Containers House	London	SE1 9GL	wpp.*****	2003	$1,036,692,185	2,285	Corporation	1841	04736785
8	Img Media LIMITED	Unitedkingdom	Chiswick	Building 6 Chiswick Park	London	W4 5HR	img.*****	1960	$653,964,185	1,015	Corporation	261	04459066
9	The7stars Group Holdings LIMITED	Unitedkingdom	Holborn-strand-covent Garden	90 Long Acre	London	WC2E 9RA	the7stars.*****	2021	$609,948,002	310	Corporation	6	13121355
10	Jcdecaux UK LIMITED	Unitedkingdom	Brentford	991 Great West Road	London	TW8 9DN	jcdecaux.*****	1982	$578,540,908	560	Corporation	401	01679670
11	Rightmove Group LIMITED	Unitedkingdom	Browns Wood	2 Caldecotte Lake Business Park	Milton Keynes	MK7 8LE	rightmove.*****	2000	$554,436,601	794	Corporation	6	03997679
12	Talon Outdoor LIMITED	Unitedkingdom	Holborn-strand-covent Garden	130 Shaftesbury Avenue	London	W1D 5EU	talonooh.*****	2007	$543,001,443	313	Corporation	21	06347960
13	The.team: SME Management EMEA LIMITED	Unitedkingdom	Holborn-strand-covent Garden	71-91 7th Floor	London	WC2B 4HN	teamwass.*****	1998	$485,498,120	1,236	Corporation	33	03584251
14	Inside Ideas Group LTD	Unitedkingdom	Camden High Street	151 Rosebery Avenue	London	EC1R 4AB	insideideas.*****	1917	$469,325,033	4,351	Corporation	83	09323085
15	Taboola Europe LIMITED	Unitedkingdom	Monument-aldgate-fenchurch Street-tower Hill	2nd Floor Aldgate House	London	EC3N 1DL	taboola.*****	2012	$463,112,311	200	Corporation	7	08119591
16	Dentsu UK LIMITED	Unitedkingdom	Hampstead	10 Triton Street	London	NW1 3BF	dentsu.*****	1972	$413,325,181	2,833	Corporation	995	01939690
17	Omnicom Media Group UK LIMITED	Unitedkingdom	Dulwich	C/o Bankside 2	London	SE1 0SW	omd.*****	2002	$378,633,306	1,827	Corporation	2371	04431736
18	Hemingways Marketing Services LIMITED	Unitedkingdom	Ripon	Metcalfe House	North Yorkshire	HG4 1PB	hemingways.*****	1947	$339,545,771	149	Corporation	10	00453174
19	Global Outdoor Media LIMITED	Unitedkingdom	Holborn-strand-covent Garden	30 Leicester Square	London	WC2H 7LA	global.*****	1994	$296,460,620	337	Corporation	253	02866133
20	Bauer Media Outdoor UK LIMITED	Unitedkingdom	Hampstead	The Lantern	London	NW1 2PL	bauermediaoutdoor.*****	1969	$262,018,460	677	Corporation	300	00950526
21	Wpp Media Motion Entertainment LIMITED	Unitedkingdom	Forest Hill	Rose Court	London	SE1 9HS	N/A	1995	$253,495,880	19	Corporation	1841	03080944
22	Finecast LIMITED	Unitedkingdom	Holborn	26 Red Lion Square	London	WC1R 4HQ	finecast.*****	2017	$240,499,633	114	Corporation	1841	10932235
23	Millside Hospital Radio	Unitedkingdom	Sutton-in-ashfield	Kings Mill Hospital	Nottinghamshire	NG17 4JL	millsideradio.*****	2002	$239,719,783	4,500	Proprietorship	N/A	1001627
24	Ocean Bidco LIMITED	Unitedkingdom	Holborn-strand-covent Garden	25 Kingly Street	London	W1B 5QB	N/A	2012	$238,385,065	287	Corporation	13	08038055
25	Vccp Group Llp	Unitedkingdom	Holborn-strand-covent Garden	66 Berners Street	London	W1T 3NL	vccp.*****	2011	$233,736,049	625	Partnership of unknown type	15	OC370529

Showing 25 of 36,309 companies

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Where in the UK?

London has the most advertising companies in the UK (13,381), ahead of South East (4,580), North West (3,734), East of England (3,212) and West Midlands (2,208). Together the five hold three in four of them. Relative to their size, London, North West and East of England have the most: 1.0 to 1.7 times the national share.

Regions by number of firms

12 UK regions have at least one advertising firm; 12 have ten or more; 0 have exactly one. Click a region to set the lens.

Only here

Where they cluster

Advertising firms per 100 companies, in regions with at least 100 of them. The national share is 0.41. London has 1.7 times the national share.

1.7×
1.0×
1.0×
0.9×
0.8×
0.8×
0.7×
0.7×
0.7×
0.7×
0.6×
0.5×

Dashed line: the national share. A filled dot is twice the national share or more.

Largest advertising firms in the UK

The biggest firms by staff and by revenue, the largest in London, the biggest newcomers of 2026 and the oldest firms. Click a name for the record.

Facebook UK is the largest advertising firm in the UK by headcount. 357 firms employ 50 people or more; 173 employ 100 or more.

1London5,679 staff
2Nottinghamshire4,500 staff
3London2,833 staff
4London2,285 staff
5London1,500 staff
6Leeds1,132 staff
7London964 staff
8London923 staff
9Liverpool800 staff
10Milton Keynes794 staff

By employee size · 35,959 firms with a known headcount

Employees	Firms	%
1-4	32,535	90%
5-9	1,592	4%
10-19	881	2%
20-49	594	2%
50-99	184	0.5%
100-199	87	0.2%
200-499	59	0.2%
500-999	21	<0.1%
1,000+	6	<0.1%

90% have 1 to 4 people; 594 have 20 to 49; 357 have 50 or more.

By yearly revenue (USD)

Revenue	Firms	%
< $100K	22,576	63%
$100K-$500K	10,071	28%
$500K-$1M	1,290	4%
$1M-$5M	1,271	4%
$5M-$10M	257	0.7%
$10M-$50M	335	0.9%
$50M-$100M	69	0.2%
$100M-$500M	52	0.1%
$500M+	11	<0.1%

63% under $100,000; 1,271 between $1M and $5M; 724 above $5M.

Firm sizes in the UK

Of the 35,959 UK advertising firms with a known headcount, 32,535 (90%) have one to four people, 1,592 have five to nine, 1,475 have ten to 49 and 357 have 50 or more. Most firms turn over under $100,000 a year (22,576, 63%).

EU size bands · the grey line shows all UK companies

Micro under 1034,127 95%
Small 10 to 491,475 4%
Medium 50 to 249330 0.9%
Large 250+27 <0.1%

Grey line: the share among all UK companies (93% have under ten staff).

724

firms turn over more than $5 million a year; 467 more than $10 million.

4,501

firms were entered in 2026.

How many advertising companies are there in the UK?

Advertising companies and advertising firms in the UK

36,206

21 October 2026

There are 36,206 advertising companies and advertising firms in the UK in our data (21 October 2026). That is one in every 244 UK companies. About 21 new firms are entered in the register every working day this year (4,501 so far in 2026).

Structure

Single-site firms: 35,133 97%
Head offices: 814
Branch offices: 259

Classification

Our platform filter is the national code 73110.

32,905 of the 36,206 are Ltd and PLC (91%); 1,246 are sole traders. They come from Companies House and our UK register data, through the Companies House API.

Advertising firms in London

London has 13,381 advertising companies and advertising firms, 0.7% of all 1,945,804 London companies and 68% above the national share. Nine in ten London firms have fewer than five people; 218 have 50 or more. 2,044 new firms were entered in 2026, 199 date from before 1990.

Size

1-4 staff: 11,917 · 90%
5-9: 564 · 4%
10-19: 299 · 2%
20-49: 281 · 2%
50+: 218 · 2%

Legal form

Sole traders: 243 · 2%
Partnerships: 88 · 0.7%
Ltd and PLC: 12,682 · 95%
Other or none: 368 · 3%

Of the UK total: 37.0%
Of all London companies: 0.7%
Against the national share: 1.7×

New

Entered 2026 so far: 2,044
Entered 2025: 2,631
Of UK's 2026 entries: 45.4%

Old

Before 1990: 199 · 1%
1990 or later: 13,182 · 99%
Of UK's pre-1990 firms: 35.6%

Reachable

Email: 1,795 · 13%
Phone: 3,292 · 25%
Website: 3,774 · 28%

Revenue (USD)

Under $100K: 8,932 · 67%
$100K-$500K: 2,849 · 21%
$500K-$1M: 482 · 4%
$1M and more: 1,030 · 8%

Largest

15,679
22,833
32,285
41,500
5964

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Sole traders or Ltd: how they are organised

One in twenty-nine UK advertising firms work as sole traders, against 7% of all UK companies. Nine in ten are Ltd and PLC.

Sole traders1,2463%
Partnerships (partnerships and LLPs)3430.9%
Ltd and PLC32,90591%
No form on record or other1,7125%

Single-site: 97%
Head offices: 814
Branches: 259

All UK companies: 7% sole traders, 3% partnerships, 62% Ltd and PLC.

How they compare

Next to related industries

There are 2 cleaning companies for every advertising firm in the UK.

Industry	Firms	Website	1-4 staff
Cleaning Companies	60,326	37%	83%
Advertising Companies	36,206	28%	90%
Recruitment Companies	35,607	47%	72%
Marketing Companies	7,413	94%	74%
Window Cleaners	5,839	53%	91%
Crane Rentals	4,703	43%	73%

In other countries

The UK has more advertising firms than Belgium or Luxembourg.

Country	Firms	Per 1,000 cos.
The UK	36,206	4.1
Belgium	15,297	6.4
Luxembourg	542	3.2

More countries →

Free sample: advertising firms in Europe

The oldest firms in the UK

Our data holds 3 UK advertising firms from before 1900, 54 from before 1950 and 559 from before 1990.

1891
1. Rotherham
1895
1. Rotherham
1895
1. London
1900
1. London
1900
1. Wrexham
1901
1. Warwickshire

Older than you

Live tool

Move the slider to a year. Two live counts, scoped to this industry.

1990

559

UK advertising firms date from before 1990

were entered in 1990

How reachable are they?

Advertising firms are harder to reach than the average UK company: 24% list a phone number and 28% a website.

Email4,504 12%
Phone8,593 24%
Website10,058 28%

Grey line: all UK companies (email 15%, phone 30%, website 30%).

The full list with these fields is in our UK company database.

Newcomers in the UK in 2026

4,501 advertising firms were entered in the UK register so far in 2026, about 21 a working day, after 6,364 in 2025. The UK as a whole saw 534,395 new companies in 2026, so this industry takes 0.8% of the inflow.

1,8872022
2,8442023
3,6742024
6,3642025
4,5012026 so far

4,476 of this year's 4,501 are Ltd and PLC.

The biggest newcomers of 2026

The year is the register entry; an established firm that changes legal form appears as new.

1City of Bristol25 staff
2Kent16 staff
3Warwickshire12 staff
4South Lanarkshire11 staff
5London10 staff

Frequently asked questions

How many advertising companies are there in the UK?

There are 36,206 advertising companies and advertising firms in the UK in our data, counted on 21 October 2026. That is one in every 244 UK companies.

Which is the largest advertising firm in the UK?

Facebook UK in London, with 5,679 staff.

Which UK region has the most advertising companies?

London, with 13,381, ahead of South East (4,580), North West (3,734), East of England (3,212) and West Midlands (2,208).

How many advertising firms are there in London?

13,381, which is 0.7% of all 1,945,804 London companies and 68% above the national share.

How big is a typical advertising firm?

Small. 90% of the 35,959 firms with a known headcount have one to four people; 357 have 50 or more. Most turn over under $100,000 a year.

Are UK advertising companies sole traders or companies?

One in twenty-nine (1,246) are sole traders, 0.9% are partnerships and 91% (32,905) are Ltd and PLC.

How many advertising firms started in 2026?

4,501 were entered in the UK register so far in 2026, after 6,364 in 2025. 4,476 of them are Ltd and PLC.

What is the oldest advertising firm in the UK?

Rotherham Advertiser in Rotherham, 1891, followed by L S L Property Services in Rotherham (1895) and Ogilvy & Mather Group (Holdings) in London (1895). 3 firms date from before 1900.

Which industry code covers advertising companies?

Our platform filters them on the national code 73110.

Can I download the full list?

Yes. All 36,206 firms with address, phone, email, legal form, employees, revenue and founding year, as Excel, CSV or through the API.

Discover more: related industries, by region, in other countries

The lists closest to this one. Every industry and city in the UK is on the UK page.

Professional, scientific and technical

Companies in UK cities

Europe

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