CompanyTrack
High-Growth Sector

AdTech & Marketing Systems

A market overview of active UK companies in AdTech & Marketing Systems. Figures exclude dormant and dissolved companies. Data refreshed 30 Apr 2026.

Browse all 10,668 companies →
Active companies
10,668
trading & on register
Reporting turnover
707
7% of active
Reporting employees
9,240
87% of active
Register health
20%
of 13,727 on register are dormant

Company size (employees)

Active companies reporting employee counts

1-9
7,593
10-49
1,243
50-249
312
250+
92

Turnover distribution

Active companies reporting turnover

<£100k
112
£100k-£1m
72
£1m-£10m
179
£10m-£100m
295
£100m+
49

Where they're based

Active companies by major UK city (30km London, 15–20km elsewhere)

Greater London
3,174
Manchester
460
Birmingham
258
Leeds
188
Bristol
142
Glasgow
122
Liverpool
117
Edinburgh
103
Cardiff
88
Belfast
50

New formations by year

Active companies incorporated under this category (dormant shells excluded)

654
17
749
18
813
19
790
20
716
21
625
22
425
23
120
24
14
25
1
26

Largest by turnover

#CompanyTurnoverEBITDAEmployees3y growth
1SKY UK LIMITED£10.4B£209.0M10,1792%
2ROYAL MAIL GROUP LIMITED£8.2B£455.0M126,811-1%
3DENTSU INTERNATIONAL LIMITED£4.4B£531.3M49,3857%
4ITV BROADCASTING LIMITED£1.1B£24.6M1,373-6%
5IPG HOLDINGS (UK) LIMITED£935.6M£99.7M5,417-24%
6S4 CAPITAL PLC£848.2M£148.8M7,4987%
7TEAM INTERNET GROUP PLC£639.9M£70.8M-28%
8ACTIVISION BLIZZARD MEDIA LIMITED£483.9M-2421%
9JCDECAUX UK LIMITED£456.4M£46.2M56021%
10THE7STARS GROUP HOLDINGS LIMITED£451.3M£2.4M331-
11TALON OUTDOOR LIMITED£428.3M£7.8M19413%
12THE7STARS UK LIMITED£425.3M£2.4M30710%
13DISCOVERIE GROUP PLC£422.9M£70.6M4,497-8%
14TABOOLA EUROPE LIMITED£365.3M£10.8M1533%
15DENTSU UK LIMITED£326.0M£4.2M2,83318%
16GLOBALDATA PLC£322.3M£104.2M3,55810%
17OUTBRAIN UK LIMITED£303.0M£29.4M138-
18CAMPAIGN MONITOR HOLDINGS (UK) LIMITED£285.7M£41.7M1,28918%
19MIROMA HOLDINGS LTD£275.7M£14.5M75748%
20JELLYFISH DIGITAL GROUP LIMITED£251.2M£17.8M1,6641%

Fastest-growing

Active companies with turnover ≥ £1m, sorted by 3-year turnover CAGR

#CompanyTurnoverEmployees3y turnover growth
1STANDOUT FIELD MARKETING LIMITED£8.3M159824%
2KINESSO LIMITED£19.1M98511%
32 HEADS GLOBAL HOLDINGS LIMITED£35.5M77145%
42 HEADS GLOBAL DESIGN LIMITED£26.4M80137%
5VIEWERSLOGIC GROUP PLC£1.2M10119%
6MARKETREACH LICENSING SERVICES LIMITED£3.1M25113%
7CLICKSCO DIGITAL (UK) LIMITED£14.7M299%
8PICASSO LABS INC.£6.0M3697%
9SMG (UK) LIMITED£61.9M74189%
10JAKALA UK LIMITED£80.5M5980%
11BRAIN LABS BIDCO LIMITED£9.4M7079%
12BRAIN LABS DIGITAL LTD£53.3M92971%
13PARAGON DIGITAL SERVICES LIMITED£28.2M470%
14WPP DATA & TECHNOLOGY SOLUTIONS LTD£66.0M15165%
15WAVEMAKER GLOBAL LIMITED£58.3M18065%
16INCORPORATED SOCIETY OF BRITISH ADVERTISERS LIMITED£24.9M2162%
17FIDBANK UK LIMITED£12.1M5460%
18GEORGE P. JOHNSON (UNITED KINGDOM) LIMITED£72.4M11659%
19AUDIENCEPROJECT UK LTD£2.6M1556%
20AMAGI MEDIA PRIVATE LTD£19.9M2255%

Newest formations

Most recently incorporated active companies

#CompanyLocationIncorporated
1MNC MEDIA LTDLondon2026
2DIONY HOLDINGS LTDHull2025
3EVERYBODY AGENCY GROUP LIMITEDLondon2025
4RE:SIGNAL MANAGEMENT CO LTDLondon2025
5FUNNELFUEL HOLDINGS LIMITEDLondon2025
6MINT AI UK LIMITEDLondon2025
7OLSON DIGITAL MARKETING LTDOrpington2025
8ALS BLAST AND PAINTSHOP LTDLaunceston2025
9LG GROUP LTDNew Malden2025
10JAYWING HOLDINGS LIMITEDLondon2025
11WHALAR GROUP LTDLondon2025
12RISE MARKETING & COMMERCE LIMITEDKettering2025
13EVOLUTION ENGINEERS GROUP LTDLondon2025
14AURA FARM MEDIA GROUP LTDRugby2025
15FINELIGHT MEDIA GROUP LTDNorwich2025
16EMBRYO GROUP LIMITEDManchester2024
17JDR GROUP HOLDINGS LIMITEDDukinfield2024
18INFLUENTIALLY MEDIA LTDLondon2024
19BRUCE MEDIA GROUP LTDLeigh-On-Sea2024
20INCHIEF MEDIA LIMITEDCheshunt2024
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