Company lists · Data refreshed November 2026

Top 25 B2B sales development services based in the United Kingdom

Name: B2B sales development services based in the United Kingdom
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Nov 5, 2026 1,923 companies tracked

RevenueBase identified 1,923 company matches for B2B sales development services associated with the United Kingdom as of November 2026 and tracks 13,635 professional contacts across them, including 2,510 with verified work emails. London is the largest hub.

This list covers company matches for B2B sales development services associated with the 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 November 5, 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 Nov 5, 2026 How this list was built

1,923Companies

13,635Contacts tracked

2,510Verified emails

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The 25 largest B2B sales development services based in the United Kingdom

Ranked by team size

Top 25 of 1,923 company matches for B2B sales development services based in the United Kingdom, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Nov 5, 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	Algominds	Exact match	London, United KingdomHQ recorded Nov 5, 2026	n/a	619 contacts →
	Exact match “At Algominds, we build AI agents that find you customers who already want to buy.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
2	Qualifa	Exact match	Brighton, United KingdomHQ recorded Nov 5, 2026	51-200	453 contacts →
	Exact match “We are an award winning multilingual lead generation and market research service provider for B2B publishing, marketing, events and tech companies.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
3	Astute.com	Exact match	Bournemouth, United KingdomHQ recorded Nov 5, 2026	201-500	293 contacts →
	Exact match “Welcome to Astute.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
4	The Telemarketing Company	Exact match	Brighton, United KingdomHQ recorded Nov 5, 2026	201-500	280 contacts →
	Exact match “The Telemarketing Company is one of the UK's most trusted telemarketing agencies, delivering flexible, high-quality voice services, including pre and post sales research…” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
5	Publicis PRO	Exact match	London, United KingdomHQ recorded Nov 5, 2026	51-200	151 contacts →
	Exact match “Publicis Pro is the specialist B2B marketing agency within Publicis Groupe, the world's number one marketing holding group.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
6	GCL	Exact match	Birmingham, United KingdomHQ recorded Nov 5, 2026	51-200	130 contacts →
	Exact match “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…” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
7	AIR Marketing	Exact match	Exeter, United KingdomHQ recorded Nov 5, 2026	51-200	120 contacts →
	Exact match “Established in 2016, Air Marketing is a specialist B2B outsourced sales and lead generation partner.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
8	PUNCH	Exact match	London, United KingdomHQ recorded Nov 5, 2026	51-200	119 contacts →
	Exact match “Most B2B pipeline problems aren't a volume problem.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
9	Durhamlane	Exact match	Newcastle Upon Tyne, United KingdomHQ recorded Nov 5, 2026	51-200	108 contacts →
	Exact match “More than SDR Outsourcing.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
10	FLOWD	Exact match	Manchester, United KingdomHQ recorded Nov 5, 2026	11-50	106 contacts →
	Exact match “Flowd is an award-winning sales prospecting specialist based in the UK, Europe & US.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
11	Pursuit Marketing	Exact match	Glasgow, United KingdomHQ recorded Nov 5, 2026	51-200	106 contacts →
	Exact match “Pursuit Marketing are Experts in Demand Generation, Telemarketing, Digital Marketing and Creative Design - your 360 Marketing Provider.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
12	Whistle	Exact match	London, United KingdomHQ recorded Nov 5, 2026	51-200	90 contacts →
	Exact match “Your Account Executives shouldn't be prospecting.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
13	Voice Marketing LTD	Exact match	Sheffield, United KingdomHQ recorded Nov 5, 2026	201-500	85 contacts →
	Exact match “Voice is an agency that specialises in customer acquisition, development and retention programs.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
14	Alliance Sales Support Services Limited	Exact match	Tunbridge Wells, United KingdomHQ recorded Nov 5, 2026	51-200	82 contacts →
	Exact match “Alliance Sales Support Services provides effective and sustainable sales solutions for your business.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
15	Creative Media	Exact match	London, United KingdomHQ recorded Nov 5, 2026	51-200	63 contacts →
	Exact match “Creative Media is a global marketing agency specializing in B2B lead generation.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
16	Angsana NEW Business Agency	Exact match	Covent Garden, United KingdomHQ recorded Nov 5, 2026	11-50	60 contacts →
	Exact match “Angsana is the UK’s most respected new business development and lead generation agency for Healthcare & Life Sciences, Marketing Services and Technology companies.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
17	Excelerate360	Exact match	Hitchin, United KingdomHQ recorded Nov 5, 2026	51-200	59 contacts →
	Exact match “Excelerate360 offers business development and sales outsourcing services for B2B software and technology companies in the UK, Europe, and North America.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
18	Topboffin	Exact match	London, United KingdomHQ recorded Nov 5, 2026	51-200	59 contacts →
	Exact match “Most UK SMEs hit the same two walls.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
19	Rocket Saas	Exact match	London, United KingdomHQ recorded Nov 5, 2026	51-200	58 contacts →
	Exact match “SaaS marketing strategy and execution team for B2B brands with limited in-house resources.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
20	Business Advantage	Exact match	Petts Wood, United KingdomHQ recorded Nov 5, 2026	11-50	56 contacts →
	Exact match “Business Advantage is a B2B research and business development consultancy, founded in 1992, serving global technology and industrial sectors.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
21	Advance Connects	Exact match	Ellesmere Port, United KingdomHQ recorded Nov 5, 2026	51-200	54 contacts →
	Exact match “Advance Connects are a B2B telemarketing, lead generation & appointment scheduling experts, operating within various sectors including construction, built environment, industrial…” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
22	Crannull Lead Generation For Construction & The Built Environment	Exact match	Luton, United KingdomHQ recorded Nov 5, 2026	11-50	52 contacts →
	Exact match “We’ve helped construction companies win millions in contracts - and we’ve been doing it for over 15 years.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
23	Xlr8	Exact match	London, United KingdomHQ recorded Nov 5, 2026	11-50	51 contacts →
	Exact match “Consult us for.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
24	FLY PIE LTD	Exact match	London, United KingdomHQ recorded Nov 5, 2026	51-200	48 contacts →
	Exact match “At Fly Pie, sales outsourcing isn’t a “done-for-you” service, it’s a growth engine we build with you.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
25	Marathon B2B	Exact match	London, United KingdomHQ recorded Nov 5, 2026	51-200	48 contacts →
	Exact match “We find ourselves in an era of remarkable technological advancement.” Recorded in the RevenueBase company graph · Nov 5, 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 “B2B sales development services”. 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 1,923 B2B sales development services based in the United Kingdom

See the full list, filter by size, metro and specialty, and access 2,510 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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B2B sales development services based in the United Kingdom at a glance

As of Nov 5, 2026

18.4%Verified-email coverage

7.1Average contacts per company

1-10Median size (employees)

34.0%Largest-city concentration · London

Nov 5, 2026Page data refreshed

Companies by employee count

1-10

1,379

11-50

423

51-200

201-500

501-1,000

1,001-5,000

10001+

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 1,923 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 the United Kingdom whose business descriptions match “B2B sales development services” 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 2,510 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 November 5, 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.

B2B sales development services by metro

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 “B2B sales development services”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many B2B sales development services are there based in the United Kingdom?

RevenueBase identified 1,923 company matches for B2B sales development services associated with the United Kingdom as of November 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?

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

Which city has the most B2B sales development services?

London leads with 654 company records, followed by Manchester (80) and Birmingham (42).

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 2,510 professional contacts with verified work emails tracked across these 1,923 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 November 5, 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.