Company lists · Data refreshed September 2026
Top 25 Outbound marketing service providers based in London, United Kingdom
RevenueBase identified 448 company matches for outbound marketing service providers associated with London, United Kingdom as of September 2026 and tracks 4,319 professional contacts across them, including 872 with verified work emails. Across the United Kingdom, London is the largest hub for this category.
This list covers company matches for outbound marketing service providers 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 14, 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.
The 25 largest outbound marketing service providers based in London, United Kingdom
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 757 contacts → | ||||
Exact match “Founded in 1991, HH Global is a global outsourced marketing execution provider.” Recorded in the RevenueBase company graph · Sep 14, 2026 · View company records in RevenueBase | |||||
| 2 | 401 contacts → | ||||
Exact match “MVF powers growth for our clients by connecting them to potential customers.” Recorded in the RevenueBase company graph · Sep 14, 2026 · View company records in RevenueBase | |||||
| 3 | 147 contacts → | ||||
Exact match “It ain't over 'til it's over." This quote applies very aptly to the way Incredible Marketeer works and performs.” Recorded in the RevenueBase company graph · Sep 14, 2026 · View company records in RevenueBase | |||||
| 4 | 88 contacts → | ||||
Exact match “The B2B Customer Acquisition Specialists Internal Results specialize in generating leads, promoting content, and driving brand awareness for B2B organizations worldwide through…” Recorded in the RevenueBase company graph · Sep 14, 2026 · View company records in RevenueBase | |||||
| 5 | 59 contacts → | ||||
Exact match “Looking to fill your calendar with qualified calls?” Recorded in the RevenueBase company graph · Sep 14, 2026 · View company records in RevenueBase | |||||
| 6 | 53 contacts → | ||||
Exact match “OrbitalX is an account-based marketing agency helping B2B marketing teams generate ICP qualified pipeline.” Recorded in the RevenueBase company graph · Sep 14, 2026 · View company records in RevenueBase | |||||
| 7 | 51 contacts → | ||||
Exact match “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…” Recorded in the RevenueBase company graph · Sep 14, 2026 · View company records in RevenueBase | |||||
| 8 | 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 · Sep 14, 2026 · View company records in RevenueBase | |||||
| 9 | 44 contacts → | ||||
Exact match “Miri is an extension of your creative and marketing teams.” Recorded in the RevenueBase company graph · Sep 14, 2026 · View company records in RevenueBase | |||||
| 10 | 44 contacts → | ||||
Exact match “We are The Think Tank: a fully-integrated, result-oriented agency based in Holborn, London.” Recorded in the RevenueBase company graph · Sep 14, 2026 · View company records in RevenueBase | |||||
| 11 | 32 contacts → | ||||
Exact match “B2B marketing has a big pipeline problem.” Recorded in the RevenueBase company graph · Sep 14, 2026 · View company records in RevenueBase | |||||
| 12 | 28 contacts → | ||||
Exact match “At digiio we pioneer innovative campaigns, approaches and intelligence that unlock interest and capture the imagination of our client’s customers.” Recorded in the RevenueBase company graph · Sep 14, 2026 · View company records in RevenueBase | |||||
| 13 | 25 contacts → | ||||
Exact match “Local Fame is an internet marketing agency in London established in 2012 by Rune Sovndahl.” Recorded in the RevenueBase company graph · Sep 14, 2026 · View company records in RevenueBase | |||||
| 14 | 24 contacts → | ||||
Exact match “We are the performance-driven marketing and communications consultancy which focuses on delivering tangible, demonstrable return on investment for our clients.” Recorded in the RevenueBase company graph · Sep 14, 2026 · View company records in RevenueBase | |||||
| 15 | 24 contacts → | ||||
Exact match “Formed in 2013, the Agent3 Group was an early pioneer of Account-Based Marketing and has spent its first decade helping some of the largest B2B organizations in the world build…” Recorded in the RevenueBase company graph · Sep 14, 2026 · View company records in RevenueBase | |||||
| 16 | 24 contacts → | ||||
Exact match “Outbound Partners helps B2B companies generate pipeline through structured outbound.” Recorded in the RevenueBase company graph · Sep 14, 2026 · View company records in RevenueBase | |||||
| 17 | 23 contacts → | ||||
Exact match “ProspectAware are experts at Executive level appointment setting.” Recorded in the RevenueBase company graph · Sep 14, 2026 · View company records in RevenueBase | |||||
| 18 | 21 contacts → | ||||
Exact match “Founded in 2017 by three TMT industry veterans, Bluestripe Group is a pioneering B2B marketing services business made up of three units which offer integrated PR, content and…” Recorded in the RevenueBase company graph · Sep 14, 2026 · View company records in RevenueBase | |||||
| 19 | 19 contacts → | ||||
Exact match “Mixology Digital (formerly Intentify Demand) is a global B2B demand generation and account-based marketing (ABM) partner built for enterprise growth.” Recorded in the RevenueBase company graph · Sep 14, 2026 · View company records in RevenueBase | |||||
| 20 | 19 contacts → | ||||
Exact match “For more than two decades, Cardell Media has been helping growing businesses implement successful online marketing.” Recorded in the RevenueBase company graph · Sep 14, 2026 · View company records in RevenueBase | |||||
| 21 | 17 contacts → | ||||
Exact match “Our mission is to empower businesses across various sectors, locally and globally, by delivering innovative performance driven lead generation solutions.” Recorded in the RevenueBase company graph · Sep 14, 2026 · View company records in RevenueBase | |||||
| 22 | 16 contacts → | ||||
Exact match “Big Wolf Marketing - Leaders in B2B Telemarketing, Lead Generation & Appointment Setting With a vast combined experience, implementing established and cutting edge innovative…” Recorded in the RevenueBase company graph · Sep 14, 2026 · View company records in RevenueBase | |||||
| 23 | 16 contacts → | ||||
Exact match “ADDS Corporation is a one-stop marketplace for the best B2B Marketers, Agencies, Publishers, and Lead Generation Solution Providers.” Recorded in the RevenueBase company graph · Sep 14, 2026 · View company records in RevenueBase | |||||
| 24 | 16 contacts → | ||||
Exact match “Kingpin is now part of The Marketing Practice The Marketing Practice has combined the best B2B specialists from across the globe in one business, with capabilities that stretch…” Recorded in the RevenueBase company graph · Sep 14, 2026 · View company records in RevenueBase | |||||
| 25 | 14 contacts → | ||||
Exact match “We are an outsourcing agency specializing in sales, marketing, and customer support.” Recorded in the RevenueBase company graph · Sep 14, 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 “outbound marketing service providers”. 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 448 outbound marketing service providers based in London, United Kingdom
See the full list, filter by size, metro and specialty, and access 872 tracked professional contacts with verified work emails. Direct dials are available where recorded.
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Outbound marketing service providers based in London, United Kingdom at a glance
As of Sep 14, 2026Companies by employee count
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 448 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 “outbound marketing service providers” 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 872 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 14, 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.
Outbound marketing service providers 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 “outbound marketing service providers”; each Exact match badge shows search membership, not an individual similarity or quality score.
How many outbound marketing service providers are there based in London, United Kingdom?
RevenueBase identified 448 company matches for outbound marketing service providers 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?
Innerworkings 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 outbound marketing service providers?
London leads the United Kingdom with 448 company records, followed by Manchester (71) and Birmingham (34).
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 872 professional contacts with verified work emails tracked across these 448 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 14, 2026.
Ready to reach these companies? Verified emails and direct dials for all 448 outbound marketing service providers based in London, United Kingdom. Start with a free account, no credit card.
Download this list →Related lists
Outbound marketing service providers by geography
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- Outbound marketing service providers based in Ahmedabad, India
- Outbound marketing service providers based in Bangalore, India
- Outbound marketing service providers based in Chennai, India
- Outbound marketing service providers based in Hyderabad, India
- Outbound marketing service providers based in Mumbai, India
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.
More company lists
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- Lists A-Z
- New lists
- Outbound marketing service providers based in Brisbane, Australia
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Company intelligence · public preview
Top 25 outbound marketing service providers based in London, United Kingdom
Find companies in any niche.
Describe the businesses you want in your own words. RevenueBase SmartSearch matches company descriptions by meaning.
RevenueBase records 448 matching company records for outbound marketing service providers based in London, United Kingdom, with 4,319 tracked contacts and 872 verified work emails.
This public preview shows 25 selected records ordered by tracked contacts. RevenueBase SmartSearch finds company descriptions that match by meaning at Exact. Snapshot: September 14, 2026.
RevenueBase compiles business descriptions for niche-company discovery; each row shows a recorded excerpt where available. Adapt this search to find the companies and contacts you want.
Top 25 outbound marketing service providers based in London, United Kingdom
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
| # | Company | Headquarters on record | Reported employees | RevenueBase SmartSearch | Tracked contacts |
|---|---|---|---|---|---|
| 1 |  Innerworkingshhglobal.comHQ: London, United KingdomReported employees: 1,001-5,000 | London, United Kingdom | 1,001-5,000 | Exact match | 757 contacts → |
“Founded in 1991, HH Global is a global outsourced marketing execution provider.” Recorded description excerpt · September 14, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 |  MVFmvfglobal.comHQ: London, United KingdomReported employees: 201-500 | London, United Kingdom | 201-500 | Exact match | 401 contacts → |
“MVF powers growth for our clients by connecting them to potential customers.” Recorded description excerpt · September 14, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 |  Incredible Marketeer Ites An ISO 9001 2015 Companyimarketeer.ioHQ: London, United KingdomReported employees: 201-500 | London, United Kingdom | 201-500 | Exact match | 147 contacts → |
“It ain't over 'til it's over." This quote applies very aptly to the way Incredible Marketeer works and performs.” Recorded description excerpt · September 14, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 |  Internal Resultsinternalresults.comHQ: London, United KingdomReported employees: 201-500 | London, United Kingdom | 201-500 | Exact match | 88 contacts → |
“The B2B Customer Acquisition Specialists Internal Results specialize in generating leads, promoting content, and driving brand awareness for B2B organizations worldwide through…” Recorded description excerpt · September 14, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 |  Salesarsalesar.ioHQ: London, United KingdomReported employees: 51-200 | London, United Kingdom | 51-200 | Exact match | 59 contacts → |
“Looking to fill your calendar with qualified calls?” Recorded description excerpt · September 14, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 |  Orbitalxorbitalx.comHQ: London, United KingdomReported employees: 51-200 | London, United Kingdom | 51-200 | Exact match | 53 contacts → |
“OrbitalX is an account-based marketing agency helping B2B marketing teams generate ICP qualified pipeline.” Recorded description excerpt · September 14, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 |  The Marketing Practicethemarketingpractice.comHQ: London, United KingdomReported employees: 501-1,000 | London, United Kingdom | 501-1,000 | Exact match | 51 contacts → |
“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…” Recorded description excerpt · September 14, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 |  FLY PIE LTDflypie.co.ukHQ: London, United KingdomReported employees: 51-200 | London, United Kingdom | 51-200 | Exact match | 48 contacts → |
“At Fly Pie, sales outsourcing isn’t a “done-for-you” service, it’s a growth engine we build with you.” Recorded description excerpt · September 14, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 |  Miri Growthmirigrowth.comHQ: London, United KingdomReported employees: 11-50 | London, United Kingdom | 11-50 | Exact match | 44 contacts → |
“Miri is an extension of your creative and marketing teams.” Recorded description excerpt · September 14, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 |  The Think Tankthinktank.org.ukHQ: London, United KingdomReported employees: 11-50 | London, United Kingdom | 11-50 | Exact match | 44 contacts → |
“We are The Think Tank: a fully-integrated, result-oriented agency based in Holborn, London.” Recorded description excerpt · September 14, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 |  Velocity Partnersvelocitypartners.comHQ: London, United KingdomReported employees: 51-200 | London, United Kingdom | 51-200 | Exact match | 32 contacts → |
“B2B marketing has a big pipeline problem.” Recorded description excerpt · September 14, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 |  Digiiodigiio.comHQ: London, United KingdomReported employees: 11-50 | London, United Kingdom | 11-50 | Exact match | 28 contacts → |
“At digiio we pioneer innovative campaigns, approaches and intelligence that unlock interest and capture the imagination of our client’s customers.” Recorded description excerpt · September 14, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 |  Local Famelocalfame.comHQ: London, United KingdomReported employees: 11-50 | London, United Kingdom | 11-50 | Exact match | 25 contacts → |
“Local Fame is an internet marketing agency in London established in 2012 by Rune Sovndahl.” Recorded description excerpt · September 14, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 |  Hard Numbershardnumbers.co.ukHQ: London, United KingdomReported employees: 11-50 | London, United Kingdom | 11-50 | Exact match | 24 contacts → |
“We are the performance-driven marketing and communications consultancy which focuses on delivering tangible, demonstrable return on investment for our clients.” Recorded description excerpt · September 14, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 |  Agent3 Groupagent3.comHQ: London, United KingdomReported employees: 51-200 | London, United Kingdom | 51-200 | Exact match | 24 contacts → |
“Formed in 2013, the Agent3 Group was an early pioneer of Account-Based Marketing and has spent its first decade helping some of the largest B2B organizations in the world build…” Recorded description excerpt · September 14, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 |  Outbound Partnersoutboundpartners.comHQ: London, United KingdomReported employees: 51-200 | London, United Kingdom | 51-200 | Exact match | 24 contacts → |
“Outbound Partners helps B2B companies generate pipeline through structured outbound.” Recorded description excerpt · September 14, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 |  Prospectawareprospectaware.comHQ: London, United KingdomReported employees: 11-50 | London, United Kingdom | 11-50 | Exact match | 23 contacts → |
“ProspectAware are experts at Executive level appointment setting.” Recorded description excerpt · September 14, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 |  Bluestripe Groupbluestripegroup.co.ukHQ: London, United KingdomReported employees: 11-50 | London, United Kingdom | 11-50 | Exact match | 21 contacts → |
“Founded in 2017 by three TMT industry veterans, Bluestripe Group is a pioneering B2B marketing services business made up of three units which offer integrated PR, content and…” Recorded description excerpt · September 14, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 |  Mixology Digitalmixology-digital.comHQ: London, United KingdomReported employees: 11-50 | London, United Kingdom | 11-50 | Exact match | 19 contacts → |
“Mixology Digital (formerly Intentify Demand) is a global B2B demand generation and account-based marketing (ABM) partner built for enterprise growth.” Recorded description excerpt · September 14, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 |  Cardell Mediacardellmedia.comHQ: London, United KingdomReported employees: 11-50 | London, United Kingdom | 11-50 | Exact match | 19 contacts → |
“For more than two decades, Cardell Media has been helping growing businesses implement successful online marketing.” Recorded description excerpt · September 14, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 |  JBI Advertisingjbiadvertising.comHQ: London, United KingdomReported employees: 1-10 | London, United Kingdom | 1-10 | Exact match | 17 contacts → |
“Our mission is to empower businesses across various sectors, locally and globally, by delivering innovative performance driven lead generation solutions.” Recorded description excerpt · September 14, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 |  BIG Wolf Marketingbigwolfmarketing.co.ukHQ: London, United KingdomReported employees: 51-200 | London, United Kingdom | 51-200 | Exact match | 16 contacts → |
“Big Wolf Marketing - Leaders in B2B Telemarketing, Lead Generation & Appointment Setting With a vast combined experience, implementing established and cutting edge innovative…” Recorded description excerpt · September 14, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 |  Adds Corporationadds-corp.comHQ: London, United KingdomReported employees: 51-200 | London, United Kingdom | 51-200 | Exact match | 16 contacts → |
“ADDS Corporation is a one-stop marketplace for the best B2B Marketers, Agencies, Publishers, and Lead Generation Solution Providers.” Recorded description excerpt · September 14, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 |  Kingpin Communicationskingpincomms.comHQ: London, United KingdomReported employees: 51-200 | London, United Kingdom | 51-200 | Exact match | 16 contacts → |
“Kingpin is now part of The Marketing Practice The Marketing Practice has combined the best B2B specialists from across the globe in one business, with capabilities that stretch…” Recorded description excerpt · September 14, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 |  The Sales Centrethesalescentre.coHQ: London, United KingdomReported employees: 1-10 | London, United Kingdom | 1-10 | Exact match | 14 contacts → |
“We are an outsourcing agency specializing in sales, marketing, and customer support.” Recorded description excerpt · September 14, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 448 company matches
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Outbound marketing service providers: dataset insights
September 14, 2026These summaries describe recorded coverage in this saved dataset. This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Reported company sizes
448 records in the displayed employee bands.
0 matching records are outside the displayed bands or do not have a displayed size. Bars show shares of the displayed bands.
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 448 companies.
How this company list was built
Describe a niche in your own words: companies installing commercial solar, or manufacturers of sustainable packaging. RevenueBase SmartSearch finds companies whose compiled business descriptions match by meaning. This list is one saved example to adapt.
Where the company descriptions come from
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
RevenueBase SmartSearch matching settings
- Exact
- Closest fits to the business described.
- Similar
- Similar businesses with a wider range of fits.
- Related
- Related businesses in and around the category.
- Broad
- A broader set of businesses connected to the description.
RevenueBase SmartSearch · Exact match identifies inclusion in this search's closest semantic matching setting. It is not a per-company confidence score, a literal keyword match, or a quality endorsement.
Selection, ordering and scope
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Recorded company descriptions support research; check company websites for current services. The selected preview is ordered by tracked contacts and is not a list of the best service providers.
Snapshot: September 14, 2026.
RevenueBase is a B2B data infrastructure company. Its September 3, 2026 published methodology describes a graph of 60 million companies and 398.9 million professional contacts; these platform figures differ from this page's totals. Published methodology ↗
Outbound marketing service providers by metro in the United Kingdom
Questions about this company list
What does Exact match mean for outbound marketing service providers?
The separate RevenueBase SmartSearch column identifies inclusion at the closest semantic matching preset. It is not a literal keyword match, a per-company confidence score or a quality endorsement. Changing the search form opens a new search in RevenueBase; it does not reclassify these saved rows.
How many outbound marketing service providers did RevenueBase find based in London, United Kingdom?
The saved snapshot records 448 matching company records, 4,319 tracked contacts and 872 verified emails. The public preview displays 25 selected records.
Where do the company descriptions come from?
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
How are the public companies ordered?
The selected public records are ordered by contacts tracked in RevenueBase, highest first. Contact coverage is a prospecting measure, not an assessment of the company's services or quality.
How can I get contact information?
Select a company's contact count to open its filtered contacts in RevenueBase. Free signup is required and includes 500 credits and limited free results. Verified emails, direct dials and mobile numbers depend on available coverage.
How current is this list?
Snapshot: September 14, 2026. Review each company's website for current services and locations. A recorded business description does not establish that every company offers every service named in the search.
What do headquarters and employee bands mean?
These are recorded company-level fields, rather than a map of every branch or a count of specialists. Missing headquarters or employee bands are labeled; older records may show a location separately from recorded headquarters.
Build your next target company list
Adapt this niche search and work with available contacts in RevenueBase.
Related lists
Outbound marketing service providers by geography
- Outbound marketing service providers based in Brisbane, Australia
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- Outbound marketing service providers based in Sydney, Australia
- Outbound marketing service providers based in Calgary, Canada
- Outbound marketing service providers based in Montreal, Canada
- Outbound marketing service providers based in Toronto, Canada
- Outbound marketing service providers based in Vancouver, Canada
- Outbound marketing service providers based in Ahmedabad, India
- Outbound marketing service providers based in Bangalore, India
- Outbound marketing service providers based in Chennai, India
- Outbound marketing service providers based in Hyderabad, India
- Outbound marketing service providers based in Mumbai, India
Cite this list
RevenueBase Data Team. Top 25 outbound marketing service providers based in London, United Kingdom. Snapshot: September 14, 2026. https://revenuebase.ai/companies/outbound-marketing-service-providers/united-kingdom/london.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗
More company lists
- All company lists
- Lists by location
- Lists A-Z
- New lists
- Outbound marketing service providers based in Brisbane, Australia
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Company intelligence · public preview
Top 25 outbound marketing service providers based in London, United Kingdom
RevenueBase records 448 matching company records for outbound marketing service providers based in London, United Kingdom, with 4,319 tracked contacts and 872 verified work emails.
This public preview shows 25 selected records ordered by tracked contacts. RevenueBase SmartSearch finds company descriptions that match by meaning at Exact. Snapshot: September 14, 2026.
RevenueBase compiles business descriptions for niche-company discovery; each row shows a recorded excerpt where available. Adapt this search to find the companies and contacts you want.
Top 25 outbound marketing service providers based in London, United Kingdom
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
| # | Company | Headquarters on record | Reported employees | RevenueBase SmartSearch | Tracked contacts |
|---|---|---|---|---|---|
| 1 | Innerworkingshhglobal.com HQ: London, United KingdomReported employees: 1,001-5,000 | London, United Kingdom | 1,001-5,000 | Exact match | 757 contacts → |
“Founded in 1991, HH Global is a global outsourced marketing execution provider.” Recorded description excerpt · September 14, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 | MVFmvfglobal.com HQ: London, United KingdomReported employees: 201-500 | London, United Kingdom | 201-500 | Exact match | 401 contacts → |
“MVF powers growth for our clients by connecting them to potential customers.” Recorded description excerpt · September 14, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 | Incredible Marketeer Ites An ISO 9001 2015 Companyimarketeer.io HQ: London, United KingdomReported employees: 201-500 | London, United Kingdom | 201-500 | Exact match | 147 contacts → |
“It ain't over 'til it's over." This quote applies very aptly to the way Incredible Marketeer works and performs.” Recorded description excerpt · September 14, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 | Internal Resultsinternalresults.com HQ: London, United KingdomReported employees: 201-500 | London, United Kingdom | 201-500 | Exact match | 88 contacts → |
“The B2B Customer Acquisition Specialists Internal Results specialize in generating leads, promoting content, and driving brand awareness for B2B organizations worldwide through…” Recorded description excerpt · September 14, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 | Salesarsalesar.io HQ: London, United KingdomReported employees: 51-200 | London, United Kingdom | 51-200 | Exact match | 59 contacts → |
“Looking to fill your calendar with qualified calls?” Recorded description excerpt · September 14, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 | Orbitalxorbitalx.com HQ: London, United KingdomReported employees: 51-200 | London, United Kingdom | 51-200 | Exact match | 53 contacts → |
“OrbitalX is an account-based marketing agency helping B2B marketing teams generate ICP qualified pipeline.” Recorded description excerpt · September 14, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 | The Marketing Practicethemarketingpractice.com HQ: London, United KingdomReported employees: 501-1,000 | London, United Kingdom | 501-1,000 | Exact match | 51 contacts → |
“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…” Recorded description excerpt · September 14, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 | FLY PIE LTDflypie.co.uk HQ: London, United KingdomReported employees: 51-200 | London, United Kingdom | 51-200 | Exact match | 48 contacts → |
“At Fly Pie, sales outsourcing isn’t a “done-for-you” service, it’s a growth engine we build with you.” Recorded description excerpt · September 14, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 | Miri Growthmirigrowth.com HQ: London, United KingdomReported employees: 11-50 | London, United Kingdom | 11-50 | Exact match | 44 contacts → |
“Miri is an extension of your creative and marketing teams.” Recorded description excerpt · September 14, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 | The Think Tankthinktank.org.uk HQ: London, United KingdomReported employees: 11-50 | London, United Kingdom | 11-50 | Exact match | 44 contacts → |
“We are The Think Tank: a fully-integrated, result-oriented agency based in Holborn, London.” Recorded description excerpt · September 14, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 | Velocity Partnersvelocitypartners.com HQ: London, United KingdomReported employees: 51-200 | London, United Kingdom | 51-200 | Exact match | 32 contacts → |
“B2B marketing has a big pipeline problem.” Recorded description excerpt · September 14, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 | Digiiodigiio.com HQ: London, United KingdomReported employees: 11-50 | London, United Kingdom | 11-50 | Exact match | 28 contacts → |
“At digiio we pioneer innovative campaigns, approaches and intelligence that unlock interest and capture the imagination of our client’s customers.” Recorded description excerpt · September 14, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 | Local Famelocalfame.com HQ: London, United KingdomReported employees: 11-50 | London, United Kingdom | 11-50 | Exact match | 25 contacts → |
“Local Fame is an internet marketing agency in London established in 2012 by Rune Sovndahl.” Recorded description excerpt · September 14, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 | Hard Numbershardnumbers.co.uk HQ: London, United KingdomReported employees: 11-50 | London, United Kingdom | 11-50 | Exact match | 24 contacts → |
“We are the performance-driven marketing and communications consultancy which focuses on delivering tangible, demonstrable return on investment for our clients.” Recorded description excerpt · September 14, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 | Agent3 Groupagent3.com HQ: London, United KingdomReported employees: 51-200 | London, United Kingdom | 51-200 | Exact match | 24 contacts → |
“Formed in 2013, the Agent3 Group was an early pioneer of Account-Based Marketing and has spent its first decade helping some of the largest B2B organizations in the world build…” Recorded description excerpt · September 14, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 | Outbound Partnersoutboundpartners.com HQ: London, United KingdomReported employees: 51-200 | London, United Kingdom | 51-200 | Exact match | 24 contacts → |
“Outbound Partners helps B2B companies generate pipeline through structured outbound.” Recorded description excerpt · September 14, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | Prospectawareprospectaware.com HQ: London, United KingdomReported employees: 11-50 | London, United Kingdom | 11-50 | Exact match | 23 contacts → |
“ProspectAware are experts at Executive level appointment setting.” Recorded description excerpt · September 14, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 | Bluestripe Groupbluestripegroup.co.uk HQ: London, United KingdomReported employees: 11-50 | London, United Kingdom | 11-50 | Exact match | 21 contacts → |
“Founded in 2017 by three TMT industry veterans, Bluestripe Group is a pioneering B2B marketing services business made up of three units which offer integrated PR, content and…” Recorded description excerpt · September 14, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 | Mixology Digitalmixology-digital.com HQ: London, United KingdomReported employees: 11-50 | London, United Kingdom | 11-50 | Exact match | 19 contacts → |
“Mixology Digital (formerly Intentify Demand) is a global B2B demand generation and account-based marketing (ABM) partner built for enterprise growth.” Recorded description excerpt · September 14, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 | Cardell Mediacardellmedia.com HQ: London, United KingdomReported employees: 11-50 | London, United Kingdom | 11-50 | Exact match | 19 contacts → |
“For more than two decades, Cardell Media has been helping growing businesses implement successful online marketing.” Recorded description excerpt · September 14, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 | JBI Advertisingjbiadvertising.com HQ: London, United KingdomReported employees: 1-10 | London, United Kingdom | 1-10 | Exact match | 17 contacts → |
“Our mission is to empower businesses across various sectors, locally and globally, by delivering innovative performance driven lead generation solutions.” Recorded description excerpt · September 14, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 | BIG Wolf Marketingbigwolfmarketing.co.uk HQ: London, United KingdomReported employees: 51-200 | London, United Kingdom | 51-200 | Exact match | 16 contacts → |
“Big Wolf Marketing - Leaders in B2B Telemarketing, Lead Generation & Appointment Setting With a vast combined experience, implementing established and cutting edge innovative…” Recorded description excerpt · September 14, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 | Adds Corporationadds-corp.com HQ: London, United KingdomReported employees: 51-200 | London, United Kingdom | 51-200 | Exact match | 16 contacts → |
“ADDS Corporation is a one-stop marketplace for the best B2B Marketers, Agencies, Publishers, and Lead Generation Solution Providers.” Recorded description excerpt · September 14, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 | Kingpin Communicationskingpincomms.com HQ: London, United KingdomReported employees: 51-200 | London, United Kingdom | 51-200 | Exact match | 16 contacts → |
“Kingpin is now part of The Marketing Practice The Marketing Practice has combined the best B2B specialists from across the globe in one business, with capabilities that stretch…” Recorded description excerpt · September 14, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 | The Sales Centrethesalescentre.co HQ: London, United KingdomReported employees: 1-10 | London, United Kingdom | 1-10 | Exact match | 14 contacts → |
“We are an outsourcing agency specializing in sales, marketing, and customer support.” Recorded description excerpt · September 14, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 448 company matches
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Outbound marketing service providers: dataset insights
September 14, 2026These summaries describe recorded coverage in this saved dataset. This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Reported company sizes
448 records in the displayed employee bands.
0 matching records are outside the displayed bands or do not have a displayed size. Bars show shares of the displayed bands.
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 448 companies.
How this company list was built
Describe a niche in your own words: companies installing commercial solar, or manufacturers of sustainable packaging. RevenueBase SmartSearch finds companies whose compiled business descriptions match by meaning. This list is one saved example to adapt.
Where the company descriptions come from
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
RevenueBase SmartSearch matching settings
- Exact
- Closest fits to the business described.
- Similar
- Similar businesses with a wider range of fits.
- Related
- Related businesses in and around the category.
- Broad
- A broader set of businesses connected to the description.
RevenueBase SmartSearch · Exact match identifies inclusion in this search's closest semantic matching setting. It is not a per-company confidence score, a literal keyword match, or a quality endorsement.
Selection, ordering and scope
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Recorded company descriptions support research; check company websites for current services. The selected preview is ordered by tracked contacts and is not a list of the best service providers.
Snapshot: September 14, 2026.
RevenueBase is a B2B data infrastructure company. Its September 3, 2026 published methodology describes a graph of 60 million companies and 398.9 million professional contacts; these platform figures differ from this page's totals. Published methodology ↗
Outbound marketing service providers by metro in the United Kingdom
Questions about this company list
What does Exact match mean for outbound marketing service providers?
The separate RevenueBase SmartSearch column identifies inclusion at the closest semantic matching preset. It is not a literal keyword match, a per-company confidence score or a quality endorsement. Changing the search form opens a new search in RevenueBase; it does not reclassify these saved rows.
How many outbound marketing service providers did RevenueBase find based in London, United Kingdom?
The saved snapshot records 448 matching company records, 4,319 tracked contacts and 872 verified emails. The public preview displays 25 selected records.
Where do the company descriptions come from?
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
How are the public companies ordered?
The selected public records are ordered by contacts tracked in RevenueBase, highest first. Contact coverage is a prospecting measure, not an assessment of the company's services or quality.
How can I get contact information?
Select a company's contact count to open its filtered contacts in RevenueBase. Free signup is required and includes 500 credits and limited free results. Verified emails, direct dials and mobile numbers depend on available coverage.
How current is this list?
Snapshot: September 14, 2026. Review each company's website for current services and locations. A recorded business description does not establish that every company offers every service named in the search.
What do headquarters and employee bands mean?
These are recorded company-level fields, rather than a map of every branch or a count of specialists. Missing headquarters or employee bands are labeled; older records may show a location separately from recorded headquarters.
Build your next target company list
Adapt this niche search and work with available contacts in RevenueBase.
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Cite this list
RevenueBase Data Team. Top 25 outbound marketing service providers based in London, United Kingdom. Snapshot: September 14, 2026. https://revenuebase.ai/companies/outbound-marketing-service-providers/united-kingdom/london.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗
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