Company lists · Data refreshed September 2026

Top 25 Ecommerce advertising agencies based in London, United Kingdom

Name: Ecommerce advertising 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 24, 2026 1,824 companies tracked

RevenueBase identified 1,824 company matches for ecommerce advertising agencies associated with London, United Kingdom as of September 2026 and tracks 25,565 professional contacts across them, including 4,812 with verified work emails. Across the United Kingdom, London is the largest hub for this category.

This list covers company matches for ecommerce advertising 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 24, 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 24, 2026 How this list was built

1,824Companies

25,565Contacts tracked

4,812Verified emails

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The 25 largest ecommerce advertising agencies based in London, United Kingdom

Ranked by team size

Top 25 of 1,824 company matches for ecommerce advertising agencies based in London, United Kingdom, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 24, 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	Iprospect	Exact match	London, United KingdomHQ recorded Sep 24, 2026	5,001-10,000	2,366 contacts →
	Exact match “iProspect, a dentsu company, is a leading global digital-first media agency.” Recorded in the RevenueBase company graph · Sep 24, 2026 · View company records in RevenueBase
2	M C Saatchi Performance	Exact match	London, United KingdomHQ recorded Sep 24, 2026	201-500	457 contacts →
	Exact match “We are a Global digital media agency specializing in taking a human approach to connecting brands with people across all channels.” Recorded in the RevenueBase company graph · Sep 24, 2026 · View company records in RevenueBase
3	SMG	Exact match	London, United KingdomHQ recorded Sep 24, 2026	201-500	455 contacts →
	Exact match “We’re the original pioneers in connected commerce marketing.” Recorded in the RevenueBase company graph · Sep 24, 2026 · View company records in RevenueBase
4	Loopme	Exact match	London, United KingdomHQ recorded Sep 24, 2026	201-500	401 contacts →
	Exact match “LoopMe is bringing brands into apps, powered by AI agents.” Recorded in the RevenueBase company graph · Sep 24, 2026 · View company records in RevenueBase
5	Tryzens Global	Exact match	London, United KingdomHQ recorded Sep 24, 2026	201-500	307 contacts →
	Exact match “Tryzens Global is a new kind of digital commerce agency.” Recorded in the RevenueBase company graph · Sep 24, 2026 · View company records in RevenueBase
6	Brave Bison	Exact match	London, United KingdomHQ recorded Sep 24, 2026	201-500	210 contacts →
	Exact match “A world where complexity is the only constant demands a new breed of company.” Recorded in the RevenueBase company graph · Sep 24, 2026 · View company records in RevenueBase
7	Kinesso Uk&i	Exact match	London, United KingdomHQ recorded Sep 24, 2026	501-1,000	194 contacts →
	Exact match “KINESSO UK is the award-winning, tech-driven performance marketing agency delivering actionable growth for direct clients and agency partners.” Recorded in the RevenueBase company graph · Sep 24, 2026 · View company records in RevenueBase
8	ALL Response Media	Exact match	London, United KingdomHQ recorded Sep 24, 2026	51-200	178 contacts →
	Exact match “All Response Media is the leading performance media planning and buying agency.” Recorded in the RevenueBase company graph · Sep 24, 2026 · View company records in RevenueBase
9	BIG Group	Exact match	London, United KingdomHQ recorded Sep 24, 2026	51-200	177 contacts →
	Exact match “Founded in 1991, with offices in Amsterdam, Bath, Dubai and London our award-winning employee-owned company has consistently ranked as one of the UK's leading independent digital…” Recorded in the RevenueBase company graph · Sep 24, 2026 · View company records in RevenueBase
10	Invibes Advertising	Exact match	London, United KingdomHQ recorded Sep 24, 2026	201-500	146 contacts →
	Exact match “At Invibes, our mission is to drive positive brand impact and business outcomes by prioritizing the uniqueness of every ad opportunity through valuable advertising solutions.” Recorded in the RevenueBase company graph · Sep 24, 2026 · View company records in RevenueBase
11	Sweans	Exact match	London, United KingdomHQ recorded Sep 24, 2026	51-200	136 contacts →
	Exact match “Sweans® is a London-based independent eCommerce agency & Shopify Expert.” Recorded in the RevenueBase company graph · Sep 24, 2026 · View company records in RevenueBase
12	Crimtan	Exact match	London, United KingdomHQ recorded Sep 24, 2026	51-200	130 contacts →
	Exact match “Crimtan was established in 2009 with a clear mission: to be a trusted partner for brands navigating the complex world of programmatic advertising.” Recorded in the RevenueBase company graph · Sep 24, 2026 · View company records in RevenueBase
13	E Intelligence	Exact match	London, United KingdomHQ recorded Sep 24, 2026	51-200	117 contacts →
	Exact match “e intelligence is a renowned global leader in the digital marketing space.” Recorded in the RevenueBase company graph · Sep 24, 2026 · View company records in RevenueBase
14	Estorebrands	Exact match	London, United KingdomHQ recorded Sep 24, 2026	51-200	109 contacts →
	Exact match “For brands selling through retail websites, we deliver the insights and actions needed to improve your products' visibility, increase conversion rates, and drive sales growth…” Recorded in the RevenueBase company graph · Sep 24, 2026 · View company records in RevenueBase
15	FOUND	Exact match	London, United KingdomHQ recorded Sep 24, 2026	51-200	104 contacts →
	Exact match “We're Found, the Everysearch™ agency.” Recorded in the RevenueBase company graph · Sep 24, 2026 · View company records in RevenueBase
16	SMP Simpson Mahoney Parrock Limited	Exact match	London, United KingdomHQ recorded Sep 24, 2026	51-200	100 contacts →
	Exact match “Hi, we’re SMP, a Digital Commerce agency that specialises in helping brands connect with customers across a variety of digital touchpoints and marketplaces and have been…” Recorded in the RevenueBase company graph · Sep 24, 2026 · View company records in RevenueBase
17	BSS Commerce	Exact match	London, United KingdomHQ recorded Sep 24, 2026	201-500	93 contacts →
	Exact match “BSS Commerce is a global All-in-One E-Commerce Solutions Agency that combines enterprise expertise with startup agility to deliver measurable results.” Recorded in the RevenueBase company graph · Sep 24, 2026 · View company records in RevenueBase
18	Amerge	Exact match	London, United KingdomHQ recorded Sep 24, 2026	51-200	86 contacts →
	Exact match “Amerge is an AMC-certified and award-winning full-service global Amazon agency with over 200+ years of collective ex-Amazon experience.” Recorded in the RevenueBase company graph · Sep 24, 2026 · View company records in RevenueBase
19	The Media People	Exact match	London, United KingdomHQ recorded Sep 24, 2026	11-50	83 contacts →
	Exact match “Powered by our people, our campaigns put your audience first.” Recorded in the RevenueBase company graph · Sep 24, 2026 · View company records in RevenueBase
20	TOM & CO	Exact match	London, United KingdomHQ recorded Sep 24, 2026	51-200	79 contacts →
	Exact match “Who We Are: At Tom & Co, we’re a forward-thinking Adobe Commerce agency dedicated to designing, building, and maintaining high-performance e-commerce websites, always with the…” Recorded in the RevenueBase company graph · Sep 24, 2026 · View company records in RevenueBase
21	Social Boost	Exact match	London, United KingdomHQ recorded Sep 24, 2026	51-200	79 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 24, 2026 · View company records in RevenueBase
22	Williams Commerce	Exact match	London, United KingdomHQ recorded Sep 24, 2026	51-200	74 contacts →
	Exact match “Established in 2009, Williams Commerce is a ecommerce agency focused on Building, Optimising and Growing ecommerce brands.” Recorded in the RevenueBase company graph · Sep 24, 2026 · View company records in RevenueBase
23	GA Agency	Exact match	London, United KingdomHQ recorded Sep 24, 2026	51-200	70 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 24, 2026 · View company records in RevenueBase
24	Nest Commerce	Exact match	London, United KingdomHQ recorded Sep 24, 2026	51-200	69 contacts →
	Exact match “Nest Commerce is a technology-led agency working with brands like Urban Outfitters, Hims and Damson Madder.” Recorded in the RevenueBase company graph · Sep 24, 2026 · View company records in RevenueBase
25	Vervaunt	Exact match	London, United KingdomHQ recorded Sep 24, 2026	51-200	68 contacts →
	Exact match “Vervaunt is a forward-thinking eCommerce consultancy and marketing agency, collaborating with the most ambitious and pioneering brands in the industry across full funnel…” Recorded in the RevenueBase company graph · Sep 24, 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 “ecommerce advertising 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 25 of 1,824 ecommerce advertising agencies based in London, United Kingdom

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Ecommerce advertising agencies based in London, United Kingdom at a glance

As of Sep 24, 2026

18.8%Verified-email coverage

14.0Average contacts per company

1-10Median size (employees)

Sep 24, 2026Page data refreshed

Companies by employee count

1-10

1,149

11-50

540

51-200

109

201-500

501-1,000

1,001-5,000

5,001-10,000

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 1,824 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 “ecommerce advertising 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 4,812 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 24, 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.

Ecommerce advertising 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 “ecommerce advertising agencies”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many ecommerce advertising agencies are there based in London, United Kingdom?

RevenueBase identified 1,824 company matches for ecommerce advertising 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?

Iprospect 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 ecommerce advertising agencies?

London leads the United Kingdom with 1,824 company records, followed by Manchester (217) and Birmingham (116).

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 4,812 professional contacts with verified work emails tracked across these 1,824 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 24, 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.