Company lists · Data refreshed September 2026

Top 25 Enterprise sales agencies based in the United Kingdom

RevenueBase identified 1,241 enterprise sales agencies headquartered in the United Kingdom as of September 2026 and tracks 11,326 professional contacts across them, including 2,404 with verified work emails. London is the largest hub.

This list covers enterprise sales agencies headquartered in the 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, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 28, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase Smart Search, 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 HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 28, 2026 86% judged on-target in blind review
1,241Companies
11,326Contacts tracked
2,404Verified emails
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The 25 largest enterprise sales agencies based in the United Kingdom

Ranked by team size
Top 25 of 1,241 enterprise sales agencies based in the United Kingdom, ranked by team size, largest first. Data refreshed Sep 28, 2026. RevenueBase Smart Search rates how each company's information relates to enterprise sales agencies: strong evidence (its own description names it), partial (names part of it), indirect (matched on the rest of its profile rather than the description shown). Click a contact count to view that company's people.
#CompanyRevenueBase Smart SearchHeadquartersEmployeesContacts
1Partial evidenceThame, United KingdomHQ checked Sep 28, 202610001+777 contacts →

Partial evidence

“CPM is an international sales outsourcing and customer experience agency.”

Source: RevenueBase Database · checked Sep 28, 2026
2Indirect evidenceBournemouth, United KingdomHQ checked Sep 28, 2026501-1,000369 contacts →

Indirect evidence

“Welcome to EIMS.”

Source: RevenueBase Database · checked Sep 28, 2026
3Strong evidenceLondon, United KingdomHQ checked Sep 28, 202651-200205 contacts →

Strong evidence

“EngageTech is the leading sales development partner for complex B2B technology companies operating in multi-stakeholder, enterprise sales environments.”

Source: RevenueBase Database · checked Sep 28, 2026
4Indirect evidenceLiverpool, United KingdomHQ checked Sep 28, 202651-200164 contacts →

Indirect evidence

“Inside is a global agency dedicated to delivering growth and revenue opportunities for B2B tech companies.”

Source: RevenueBase Database · checked Sep 28, 2026
5Indirect evidenceLondon, United KingdomHQ checked Sep 28, 202651-200160 contacts →

Indirect evidence

“We’re The Point Company, the team behind some of the fastest-scaling B2B companies in tech, SaaS and cybersecurity, working across five continents from North America and LATAM to…”

Source: RevenueBase Database · checked Sep 28, 2026
6Indirect evidenceLondon, United KingdomHQ checked Sep 28, 202651-200122 contacts →

Indirect evidence

“Most B2B pipeline problems aren't a volume problem.”

Source: RevenueBase Database · checked Sep 28, 2026
7Indirect evidenceBirmingham, United KingdomHQ checked Sep 28, 202651-200119 contacts →

Indirect evidence

“GCL, with its unique, non-scripted approach to telemarketing and related marketing services, has for over 30 years established an enviable reputation for providing winning lead…”

Source: RevenueBase Database · checked Sep 28, 2026
8Partial evidenceExeter, United KingdomHQ checked Sep 28, 202651-200116 contacts →

Partial evidence

“Since 2016, Air Marketing has been the trusted outsourced sales and lead generation agency in the UK for ambitious B2B businesses.”

Source: RevenueBase Database · checked Sep 28, 2026
9Indirect evidenceNewcastle Upon Tyne, United KingdomHQ checked Sep 28, 202651-200115 contacts →

Indirect evidence

“More than SDR Outsourcing.”

Source: RevenueBase Database · checked Sep 28, 2026
10Indirect evidenceDoxford International Business Park, United KingdomHQ checked Sep 28, 20261,001-5,000114 contacts →

Indirect evidence

“EC Outsourcing is one of the UK's leading outsourced contact centres.”

Source: RevenueBase Database · checked Sep 28, 2026
11Indirect evidenceWatford, United KingdomHQ checked Sep 28, 202651-200113 contacts →

Indirect evidence

“Welcome to Service Innovation Group UK.”

Source: RevenueBase Database · checked Sep 28, 2026
12Partial evidenceManchester, United KingdomHQ checked Sep 28, 202611-50104 contacts →

Partial evidence

“Flowd is an award-winning sales prospecting specialist based in the UK, Europe & US.”

Source: RevenueBase Database · checked Sep 28, 2026
13Indirect evidenceLondon, United KingdomHQ checked Sep 28, 202651-20093 contacts →

Indirect evidence

“We’re Ledger Bennett.”

Source: RevenueBase Database · checked Sep 28, 2026
14Indirect evidenceBristol, United KingdomHQ checked Sep 28, 202651-20083 contacts →

Indirect evidence

“At ELEVATE, we execute complex B2B go-to-market strategies with precision at every revenue-critical juncture, managing leads, building executive access, winning deals, expanding…”

Source: RevenueBase Database · checked Sep 28, 2026
15Partial evidenceTunbridge Wells, United KingdomHQ checked Sep 28, 202651-20082 contacts →

Partial evidence

“Alliance Sales Support Services provides effective and sustainable sales solutions for your business.”

Source: RevenueBase Database · checked Sep 28, 2026
16Indirect evidenceLondon, United KingdomHQ checked Sep 28, 202651-20082 contacts →

Indirect evidence

“Ingenuity creates new business relationships between Agencies and Brands For Agencies: We help them find, meet and win new clients through content & insight led Lead Generation…”

Source: RevenueBase Database · checked Sep 28, 2026
17Indirect evidenceSheffield, United KingdomHQ checked Sep 28, 2026201-50075 contacts →

Indirect evidence

“Voice is an agency that specialises in customer acquisition, development and retention programs.”

Source: RevenueBase Database · checked Sep 28, 2026
18Indirect evidenceLondon, United KingdomHQ checked Sep 28, 202651-20066 contacts →

Indirect evidence

“Creative Media is a global marketing agency specializing in B2B lead generation.”

Source: RevenueBase Database · checked Sep 28, 2026
19Partial evidenceHitchin, United KingdomHQ checked Sep 28, 202651-20065 contacts →

Partial evidence

“Excelerate360 offers business development and sales outsourcing services for B2B software and technology companies in the UK, Europe, and North America.”

Source: RevenueBase Database · checked Sep 28, 2026
20Partial evidencePark, United KingdomHQ checked Sep 28, 202651-20063 contacts →

Partial evidence

“LTK are a outsourced solutions provider, assisting you to reach your goals through customer retention, sales growth, business & strategy development/ implementation and people…”

Source: RevenueBase Database · checked Sep 28, 2026
21Indirect evidenceCovent Garden, United KingdomHQ checked Sep 28, 202611-5061 contacts →

Indirect evidence

“Angsana is the UK’s most respected new business development and lead generation agency for Healthcare & Life Sciences, Marketing Services and Technology companies.”

Source: RevenueBase Database · checked Sep 28, 2026
22Indirect evidenceLondon, United KingdomHQ checked Sep 28, 202651-20059 contacts →

Indirect evidence

“Looking to fill your calendar with qualified calls?”

Source: RevenueBase Database · checked Sep 28, 2026
23Indirect evidenceLondon, United KingdomHQ checked Sep 28, 202611-5059 contacts →

Indirect evidence

“Consult us for.”

Source: RevenueBase Database · checked Sep 28, 2026
24Partial evidenceHitchin, United KingdomHQ checked Sep 28, 202651-20054 contacts →

Partial evidence

“European Sales Outsourcing, B2B Lead Generation, European Business Development.”

Source: RevenueBase Database · checked Sep 28, 2026
25Partial evidenceLondon, United KingdomHQ checked Sep 28, 202651-20048 contacts →

Partial evidence

“At Fly Pie, sales outsourcing isn’t a “done-for-you” service, it’s a growth engine we build with you.”

Source: RevenueBase Database · checked Sep 28, 2026

Showing 25 of 1,241 enterprise sales agencies based in the United Kingdom

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Enterprise sales agencies based in the United Kingdom at a glance

As of Sep 28, 2026
21.2%Verified-email coverage
9.1Average contacts per company
1-10Median size (employees)
34.5%Largest-city concentration · London
Sep 28, 2026Page data refreshed

Companies by employee count

1-10
801
11-50
333
51-200
85
201-500
14
501-1,000
4
1,001-5,000
1
10001+
2

Email recency for this list is measured worldwide rather than for United Kingdom, so it is reported there. Company counts and contact totals on this page are exact for United Kingdom, over 1,241 companies.

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 enterprise sales agencies, so some rows will be adjacent to the category rather than pure plays. The description and RevenueBase Smart Search 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 Smart Search, the natural-language company search available to every RevenueBase user.
What qualifies
Companies headquartered in the United Kingdom whose own description of what they do matches “enterprise sales agencies”. Matching reads each company's description, not its industry code or its name.
RevenueBase Smart Search
RevenueBase Smart Search is how this list is assembled and how each row is rated. RevenueBase's data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to a category defined in a user's own words. Each row is rated strong evidence (its own description names enterprise sales agencies), partial evidence (it names part of the category) or indirect evidence (the description shown names none of it and the match rests on the rest of the company's profile). The description supporting each rating is quoted on the row.
What we exclude
Companies whose own description does not clearly place them among enterprise sales agencies, and records with no verified work email. Companies headquartered outside United Kingdom 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 its RevenueBase Smart Search 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, 2,404 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 28, 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.

Frequently asked

What is RevenueBase Smart Search?

RevenueBase Smart Search is how RevenueBase decides which companies belong on this list and how strongly each one fits. Its data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to the category the list is about. Each row is rated strong evidence when the company's own description names enterprise sales agencies, partial evidence when it names part of the category, and indirect evidence when the description shown names none of it and the match rests on the rest of the company's profile.

How many enterprise sales agencies are there based in the United Kingdom?

RevenueBase identified 1,241 enterprise sales agencies headquartered in the 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?

CPM International, headquartered in Thame, tops this list with the largest team on record.

Which city has the most enterprise sales agencies?

London leads with 428 headquartered companies, followed by Manchester (61) and Birmingham (26).

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 2,404 verified decision-maker contacts tracked across these 1,241 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 28, 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 Smart Search, 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.