Company lists · Data refreshed September 2026

Top 18 Internet marketing agencies based in London, United Kingdom

Name: Internet marketing agencies based in London, United Kingdom
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 4, 2026 3,560 companies tracked

RevenueBase identified 3,560 company matches for internet marketing agencies associated with London, United Kingdom as of September 2026 and tracks 31,816 professional contacts across them, including 3,020 with verified work emails. Across the United Kingdom, London is the largest hub for this category.

This list covers company matches for internet marketing agencies associated with London, United Kingdom, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed September 4, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, the natural-language company search RevenueBase customers use to build their own targeted lists and unlock verified emails and direct dials at the companies on them. How these lists are built and judged.

How to read this list RevenueBase SmartSearch · Exact Recorded Sep 4, 2026 How this list was built

3,560Companies

31,816Contacts tracked

3,020Verified emails

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The 18 largest internet marketing agencies based in London, United Kingdom

Ranked by team size

Top 18 of 3,560 company matches for internet marketing agencies based in London, United Kingdom, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 4, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#	Company	RevenueBase SmartSearch	Headquarters	Employees	Contacts
1	COOLR	Exact match	London, United KingdomHQ recorded Sep 4, 2026	51-200	175 contacts →
	Exact match “Coolr is an award-winning social media and influencer marketing agency, with offices in London.” Recorded in the RevenueBase company graph · Sep 4, 2026 · View company records in RevenueBase
2	Battenhall	Exact match	London, United KingdomHQ recorded Sep 4, 2026	51-200	110 contacts →
	Exact match “Battenhall is an award-winning communications agency for the social media age.” Recorded in the RevenueBase company graph · Sep 4, 2026 · View company records in RevenueBase
3	FOUND	Exact match	London, United KingdomHQ recorded Sep 4, 2026	51-200	102 contacts →
	Exact match “We're Found, the Everysearch™ agency.” Recorded in the RevenueBase company graph · Sep 4, 2026 · View company records in RevenueBase
4	Sunday	Exact match	London, United KingdomHQ recorded Sep 4, 2026	51-200	92 contacts →
	Exact match “Sunday is an independent content marketing agency based in London.” Recorded in the RevenueBase company graph · Sep 4, 2026 · View company records in RevenueBase
5	Konica Minolta Marketing Services	Exact match	London, United KingdomHQ recorded Sep 4, 2026	501-1,000	85 contacts →
	Exact match “Head to Indicia Worldwide for our exciting new profile, packed with great content.” Recorded in the RevenueBase company graph · Sep 4, 2026 · View company records in RevenueBase
6	The Media People	Exact match	London, United KingdomHQ recorded Sep 4, 2026	11-50	84 contacts →
	Exact match “Powered by our people, our campaigns put your audience first.” Recorded in the RevenueBase company graph · Sep 4, 2026 · View company records in RevenueBase
7	Social Boost	Exact match	London, United KingdomHQ recorded Sep 4, 2026	51-200	80 contacts →
	Exact match “Social Boost has helped to grow more than 25 million real Followers, created content for 100+ brands, and generated over 300k sales leads.” Recorded in the RevenueBase company graph · Sep 4, 2026 · View company records in RevenueBase
8	Mediavision	Exact match	London, United KingdomHQ recorded Sep 4, 2026	11-50	78 contacts →
	Exact match “At MediaVision, we believe there's potential hidden in every search.” Recorded in the RevenueBase company graph · Sep 4, 2026 · View company records in RevenueBase
9	GA Agency	Exact match	London, United KingdomHQ recorded Sep 4, 2026	51-200	72 contacts →
	Exact match “GA Agency is an award-winning digital marketing agency helping brands all over the world grow their business and revenue in the online space.” Recorded in the RevenueBase company graph · Sep 4, 2026 · View company records in RevenueBase
10	Starberry	Exact match	London, United KingdomHQ recorded Sep 4, 2026	51-200	70 contacts →
	Exact match “Starberry is a decentralised global digital agency specialising in brand strategy, web design and lead generation for estate agents, new homes developers and the proptech industry.” Recorded in the RevenueBase company graph · Sep 4, 2026 · View company records in RevenueBase
11	Kaizen	Exact match	London, United KingdomHQ recorded Sep 4, 2026	11-50	65 contacts →
	Exact match “kai-zn] noun continuous improvement \| positive change We’re experts in organic strategy, combining digital PR, technical SEO, content, and social media to put you in front of your…” Recorded in the RevenueBase company graph · Sep 4, 2026 · View company records in RevenueBase
12	MEMO	Exact match	London, United KingdomHQ recorded Sep 4, 2026	11-50	52 contacts →
	Exact match “MeMo is an integrated agency at the cutting edge of hospitality marketing.” Recorded in the RevenueBase company graph · Sep 4, 2026 · View company records in RevenueBase
13	Stellar Search	Exact match	London, United KingdomHQ recorded Sep 4, 2026	11-50	48 contacts →
	Exact match “We're a strategic digital marketing agency specialising in Paid Search, SEO, Google Shopping, Amazon and Social.” Recorded in the RevenueBase company graph · Sep 4, 2026 · View company records in RevenueBase
14	Harvest Digital	Exact match	London, United KingdomHQ recorded Sep 4, 2026	11-50	48 contacts →
	Exact match “We are a leading independent digital media agency.” Recorded in the RevenueBase company graph · Sep 4, 2026 · View company records in RevenueBase
15	Digitex Technologies	Exact match	London, United KingdomHQ recorded Sep 4, 2026	51-200	45 contacts →
	Exact match “Bringing our 10+ years of experience and knowledge of digital marketing, Digitex Technologies has now become almost synonymous with SEO, social media marketing, website building…” Recorded in the RevenueBase company graph · Sep 4, 2026 · View company records in RevenueBase
16	Beautiful Digital	Exact match	London, United KingdomHQ recorded Sep 4, 2026	11-50	44 contacts →
	Exact match “Beautiful Digital is a full service digital marketing agency.” Recorded in the RevenueBase company graph · Sep 4, 2026 · View company records in RevenueBase
17	KD WEB	Exact match	London, United KingdomHQ recorded Sep 4, 2026	11-50	44 contacts →
	Exact match “KD Web is an award winning internet marketing, web design and creative agency, providing SEO, polished website design, Ecommerce and CMS systems as well as branding and graphic…” Recorded in the RevenueBase company graph · Sep 4, 2026 · View company records in RevenueBase
18	Cubaka	Exact match	London, United KingdomHQ recorded Sep 4, 2026	11-50	43 contacts →
	Exact match “We specialise in social media strategy, content planning and production, influencer management and community management.” Recorded in the RevenueBase company graph · Sep 4, 2026 · View company records in RevenueBase

RevenueBase SmartSearch

Describe a niche business in your own words. RevenueBase SmartSearch compares the meaning of your description with company business descriptions compiled in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit.

This list uses Exact for “internet marketing agencies”. Each Exact match badge shows membership in that saved search; it is not an individual similarity score or a service-quality rating. Recorded descriptions are shown where available.

Showing 18 of 3,560 internet marketing agencies based in London, United Kingdom

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Internet marketing agencies based in London, United Kingdom at a glance

As of Sep 4, 2026

9.5%Verified-email coverage

8.9Average contacts per company

1-10Median size (employees)

Sep 4, 2026Page data refreshed

Companies by employee count

1-10

2,549

11-50

829

51-200

132

201-500

501-1,000

1,001-5,000

5,001-10,000

10001+

Email recency for this list is measured across the whole United Kingdom list rather than for London, so it is reported there. Company counts and contact totals on this page are exact for London, over 3,560 companies.

How this list was built

The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.

Source: The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase SmartSearch, the natural-language company search available to every RevenueBase user.
What qualifies: Company records associated with London, United Kingdom whose business descriptions match “internet marketing agencies” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
RevenueBase SmartSearch: Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
Public preview: The public preview omits records without a verified work email. Where headquarters information is recorded, preview rows are also filtered to this page’s location. Dataset totals and geographic summaries describe the full matched records before these preview filters.
Match quality: RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
Ranking: Team size, largest first: companies are ordered by the number of professionals RevenueBase tracks at each one. Employee ranges shown are reported bands, for context.
Verification: Every displayed company carries at least one verified work email. RevenueBase tracks 3,020 professional contacts with verified work emails across the full matched dataset. Contacts re-verify on a rolling cadence, and each contact's own verification date is shown inside RevenueBase.
Refresh: This page's figures were pulled from the company graph on September 4, 2026. Lists refresh periodically as the graph is re-checked.
Record context: Company records and descriptions can change. Check the company's website for its current services and locations.

Internet marketing agencies by metro in the United Kingdom

Frequently asked

What is RevenueBase SmartSearch?

RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “internet marketing agencies”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many internet marketing agencies are there based in London, United Kingdom?

RevenueBase identified 3,560 company matches for internet marketing agencies associated with London, United Kingdom as of September 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.

What is the largest company on this list?

COOLR tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city in the United Kingdom has the most internet marketing agencies?

London leads the United Kingdom with 3,560 company records, followed by Manchester (491) and Birmingham (306).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 3,020 professional contacts with verified work emails tracked across these 3,560 companies; direct dials are available where recorded.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 4, 2026.

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About this data

RevenueBase is a B2B data infrastructure company. Its company graph covers 60 million companies and 398.9 million professional contacts, with emails verified on a rolling cadence rather than scraped once and left to decay. These company lists are generated directly from that graph with RevenueBase SmartSearch, the same natural-language company search every RevenueBase user has: describe a market in plain words, get the companies that match, and add verified emails and direct dials for the people at them. It is the same data that powers RevenueBase's B2B data products, and a free account includes 500 credits to start. How these lists are built and judged.