Company lists · Data refreshed September 2026

Top 25 B2B demand generation software companies based in London, United Kingdom

RevenueBase identified 305 B2B demand generation software companies headquartered in London, United Kingdom as of September 2026 and tracks 6,453 professional contacts across them, including 864 with verified work emails and 452 with mobile numbers. London is the largest hub.

This list covers B2B demand generation software companies headquartered in London, United Kingdom, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Every row shows the company's own description, how directly it supports the match, and when it was last checked. Data refreshed September 3, 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 Match evidence on every row Refreshed Sep 3, 2026 86% judged on-target in blind review
305Companies
6,453Contacts tracked
864Verified emails
452Mobile numbers
Unlock all 305 companies Free signup · no credit card · 500 free credits

The 25 largest B2B demand generation software companies based in London, United Kingdom

Ranked by team size
Top 25 of 305 B2B demand generation software companies based in London, United Kingdom, ranked by team size, largest first. Data refreshed Sep 3, 2026. Evidence rates how directly each company's own description names B2B demand generation software companies: strong (names it), partial (names part of it), indirect (matched on its full profile rather than the summary shown). Click a count to unlock that company's people.
#CompanyHeadquartersEmployeesContacts
1
DigitalzonePartial evidence
London, United Kingdom501-1,000557

“Digitalzone is a global marketing and demand gen company dedicated to delivering compliant leads, exceptional customer satisfaction, and an end-to-end approach.”

Source: company website · checked Sep 3, 2026
2
Vereigen MediaStrong evidence
London, United Kingdom201-500302

“Vereigen Media is a U.S-based B2B demand generation company that supports organizations connect with data-driven lead generation and audience engagement solutions.”

Source: company website · checked Sep 3, 2026
3
IntentsifyPartial evidence
London, United Kingdom201-500216

“Intentsify empowers B2B marketers to turn buying signals into pipeline by enhancing conversions among decision makers at priority accounts throughout their buying journey.”

Source: company website · checked Sep 3, 2026
4
BNZSAStrong evidence
London, United Kingdom201-500195

“BNZSA, powered by Anteriad is a leading marketing agency specialising in tele-based demand generation with a team of more than 350 who are experts in delivering qualified…”

Source: company website · checked Sep 3, 2026
5
Account MediaPartial evidence
London, United Kingdom51-200186

“We work exclusively with B2B publishers and lead gen providers.”

Source: company website · checked Sep 3, 2026
6
InterlinkIndirect evidence
London, United Kingdom51-200181

“We help our clients supercharge their sales.”

Source: company website · checked Sep 3, 2026
7
Publicis PROPartial evidence
London, United Kingdom51-200140

“Publicis Pro is the specialist B2B marketing agency within Publicis Groupe, the world's number one marketing holding group.”

Source: company website · checked Sep 3, 2026
8
The Marketing PracticeStrong evidence
London, United Kingdom501-1,00052

“At The Marketing Practice, we’ve combined the best B2B specialists from across the globe in one business, with capabilities that stretch through the funnel, from brand to demand…”

Source: company website · checked Sep 3, 2026
9
Marathon B2BIndirect evidence
London, United Kingdom51-20052

“We find ourselves in an era of remarkable technological advancement.”

Source: company website · checked Sep 3, 2026
10
Advance ConnectsStrong evidence
London, United Kingdom51-20045

“Advance Connects are a B2B telemarketing, lead generation & appointment scheduling experts, operating within various sectors including construction, built environment, industrial…”

Source: company website · checked Sep 3, 2026
11London, United Kingdom11-5042

“Ei Advisory provides B2B sales and marketing intelligence that helps companies reach, engage and convert customers.”

Source: company website · checked Sep 3, 2026
12
Rocket SaasPartial evidence
London, United Kingdom51-20038

“SaaS marketing strategy and execution team for B2B brands with limited in-house resources.”

Source: company website · checked Sep 3, 2026
13
EloquaPartial evidence
London, United Kingdom1,001-5,00036

“Eloqua, a wholly-owned subsidiary of Oracle, is the leading provider of modern marketing automation and revenue performance management software that helps ensure every component…”

Source: company website · checked Sep 3, 2026
14London, United Kingdom11-5028

“Gripped is a digital first sales & marketing agency for B2B SaaS, technology & IT companies.”

Source: company website · checked Sep 3, 2026
15
Lion Reach MediaPartial evidence
London, United Kingdom51-20028

“Welcome to Lion Reach Media, where innovation meets unparalleled success in B2B marketing.”

Source: company website · checked Sep 3, 2026
16
ORRJOStrong evidence
London, United Kingdom11-5026

“Partnering with companies globally- Lead Generation - Demand Generation - Creative Studio : hello@ORRJO.com”

Source: company website · checked Sep 3, 2026
17
WonderfulPartial evidence
London, United Kingdom11-5026

“We help B2B service firms turn their websites into consistent sources of high-quality enquiries.”

Source: company website · checked Sep 3, 2026
18
ChiiefPartial evidence
London, United Kingdom11-5025

“Chiief is a global B2B marketing and events agency helping FSI, Manufacturinig and Technology brands accelerate revenue, expand market presence, and drive high-value engagement…”

Source: company website · checked Sep 3, 2026
19
VELOPartial evidence
London, United Kingdom11-5024

“Built on recommendations, Velo is a specialist B2B agency that crafts marketing to be proud of for clients targeting a niche in the technology, industrial, and professional…”

Source: company website · checked Sep 3, 2026
20
Outbound PartnersPartial evidence
London, United Kingdom51-20024

“Outbound Partners helps B2B companies generate pipeline through structured outbound.”

Source: company website · checked Sep 3, 2026
21
Bordeaux & BurgundyPartial evidence
London, United Kingdom11-5023

“Bordeaux & Burgundy is a global B2B marketing agency that partners with technology companies from seed stage through to IPO to help grow their marketing efficiently.”

Source: company website · checked Sep 3, 2026
22
Custom IntelligenceStrong evidence
London, United Kingdom11-5023

“Custom Intelligence are a Global B2B Demand Generation expert with over 20 years of B2B marketing expertise.”

Source: company website · checked Sep 3, 2026
23
Market WavegenStrong evidence
London, United Kingdom11-5018

“Market Wavegen | Signal-First Demand for Global B2B Growth B2B demand has shifted.”

Source: company website · checked Sep 3, 2026
24
Adds CorporationStrong evidence
London, United Kingdom51-20016

“ADDS Corporation is a one-stop marketplace for the best B2B Marketers, Agencies, Publishers, and Lead Generation Solution Providers.”

Source: company website · checked Sep 3, 2026
25
BIG Wolf MarketingStrong evidence
London, United Kingdom51-20016

“Big Wolf Marketing - Leaders in B2B Telemarketing, Lead Generation & Appointment Setting With a vast combined experience, implementing established and cutting edge innovative…”

Source: company website · checked Sep 3, 2026

Showing 25 of 305 B2B demand generation software companies based in London, United Kingdom

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B2B demand generation software companies based in London, United Kingdom at a glance

As of Sep 3, 2026
1-10Median size (employees)
LondonLargest hub · 305 HQs
452Contacts with mobile numbers
Sep 3, 2026Data refreshed

Companies by employee count

1-10
170
11-50
93
51-200
31
201-500
5
501-1,000
3
1,001-5,000
1
5,001-10,000
1

How this list was built

Company categories are rarely black and white. RevenueBase reads each company's own description of its business to decide whether it belongs among B2B demand generation software companies, so some rows will be adjacent to the category rather than pure plays. The description and evidence rating on every row are there so you can check each match yourself.

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
Companies headquartered in London, United Kingdom whose own description of what they do matches “B2B demand generation software companies”. Matching reads each company's description, not its industry code or its name.
What we exclude
Companies whose own description does not clearly place them among B2B demand generation software companies, and records with no verified work email. Companies headquartered outside London are excluded even when they keep an office there.
Match quality
In blind human judging of this matching method, 86% of matched companies were on target. Expect roughly 1 in 7 rows to be adjacent to the category rather than a pure play. Every row shows the company's own description and an evidence rating so you can judge each match yourself. Read the full methodology: how the lists are built, how the judging worked, and what the figure means.
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 listed company carries at least one verified work email, 864 across the full list. 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 3, 2026. Lists refresh periodically as the graph is re-checked.
Corrections
Wrong category, wrong headquarters, or a company that has closed? Use “Report an issue” on any row. Reports go to the RevenueBase Data Team and feed back into the company graph.

B2B demand generation software companies by metro in the United Kingdom

Frequently asked

How many B2B demand generation software companies are there based in London, United Kingdom?

RevenueBase identified 305 B2B demand generation software companies headquartered in London, United Kingdom as of September 2026, matched on each company's own description of what it does rather than its industry code.

What is the largest company on this list?

Digitalzone, headquartered in London, tops this list with the largest team on record.

Which city has the most B2B demand generation software companies?

London leads with 305 headquartered companies, followed by Manchester (38) and Birmingham (17).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work the top results, verified emails and direct dials included. Upgrading unlocks all 864 verified decision-maker contacts tracked across these 305 companies.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 3, 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.