Company lists · Data refreshed September 2026
Top 12 Cold email infrastructure providers based in the United Kingdom
RevenueBase identified 38 company matches for cold email infrastructure providers associated with the United Kingdom as of September 2026 and tracks 196 professional contacts across them, including 54 with verified work emails and 6 with mobile numbers. London is the largest hub.
This list covers company matches for cold email infrastructure providers 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 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.
The 12 largest cold email infrastructure providers based in the United Kingdom
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 30 contacts → | ||||
Exact match “Since 2013, mailercloud has expanded to become one of the largest and most extensive cloud-based email services, that resolves the task of reliably delivering emails on behalf of…” Recorded in the RevenueBase company graph · Sep 3, 2026 · View company records in RevenueBase | |||||
| 2 | 29 contacts → | ||||
Exact match “Folderly is an all-in-one email deliverability platform to supercharge your email performance.” Recorded in the RevenueBase company graph · Sep 3, 2026 · View company records in RevenueBase | |||||
| 3 | 28 contacts → | ||||
Exact match “Eloquent operates a range of platforms across various secure data centres in the UK, all of which are connected to our network and serve as the delivery point for our services.” Recorded in the RevenueBase company graph · Sep 3, 2026 · View company records in RevenueBase | |||||
| 4 | 8 contacts → | ||||
Exact match “We are MailXpertise, a global ESP (email service provider), specialists in made-to-measure email and SMS solutions for marketing professionals.” Recorded in the RevenueBase company graph · Sep 3, 2026 · View company records in RevenueBase | |||||
| 5 | 6 contacts → | ||||
Exact match “Most B2B service businesses don't have a pipeline problem.” Recorded in the RevenueBase company graph · Sep 3, 2026 · View company records in RevenueBase | |||||
| 6 | 4 contacts → | ||||
Exact match “KumoMTA is the open-source email infrastructure for enterprises and high-volume senders who want control and continuity without the risk, volatility, or pricing shocks that come…” Recorded in the RevenueBase company graph · Sep 3, 2026 · View company records in RevenueBase | |||||
| 7 | 3 contacts → | ||||
Exact match “About Us: At Mailyser, we are passionate about helping businesses and individuals maximize their email marketing potential.” Recorded in the RevenueBase company graph · Sep 3, 2026 · View company records in RevenueBase | |||||
| 8 | 2 contacts → | ||||
Exact match “An Enterprise class email marketing platform, providing industry leading delivery rates.” Recorded in the RevenueBase company graph · Sep 3, 2026 · View company records in RevenueBase | |||||
| 9 | 2 contacts → | ||||
Exact match “Helping Recruiters With Email Deliverability.” Recorded in the RevenueBase company graph · Sep 3, 2026 · View company records in RevenueBase | |||||
| 10 | 2 contacts → | ||||
Exact match “Whether you need a single Email account for your small business or a Virtual DataCentre for your large enterprise, we have the experience and skills to provide you with trusted…” Recorded in the RevenueBase company graph · Sep 3, 2026 · View company records in RevenueBase | |||||
| 11 | 1 contacts → | ||||
Exact match “InboxWizards help small to large email senders deliver their emails to the Inbox.” Recorded in the RevenueBase company graph · Sep 3, 2026 · View company records in RevenueBase | |||||
| 12 | 1 contacts → | ||||
Exact match “Red Circle Digital will help you get the most from your email marketing.” Recorded in the RevenueBase company graph · Sep 3, 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 “cold email infrastructure 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 12 of 38 cold email infrastructure providers based in the United Kingdom
See the full list, filter by size, metro and specialty, and access 54 tracked professional contacts with verified work emails. Direct dials are available where recorded.
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Cold email infrastructure providers based in the United Kingdom at a glance
As of Sep 3, 2026Companies by employee count
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 “cold email infrastructure 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 54 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 3, 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.
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 “cold email infrastructure providers”; each Exact match badge shows search membership, not an individual similarity or quality score.
How many cold email infrastructure providers are there based in the United Kingdom?
RevenueBase identified 38 company matches for cold email infrastructure providers associated with the 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?
Mailercloud tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.
Which city has the most cold email infrastructure providers?
London leads with 23 company records, followed by Cambridge (1) and Manchester (1).
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 54 professional contacts with verified work emails tracked across these 38 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 3, 2026.
Ready to reach these companies? Verified emails and direct dials for all 38 cold email infrastructure providers based in the United Kingdom. Start with a free account, no credit card.
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Cold email infrastructure providers by geography
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.
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- New lists
- Cold email infrastructure providers based in the United States
- Cold email infrastructure providers based in London, United Kingdom
- Cold email infrastructure providers based in India
- AI companies based in the United Kingdom
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Company intelligence · public preview
Top 12 cold email infrastructure providers based in the 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 38 matching company records for cold email infrastructure providers based in the United Kingdom, with 196 tracked contacts and 54 verified work emails.
This public preview shows 12 selected records ordered by tracked contacts. RevenueBase SmartSearch finds company descriptions that match by meaning at Exact. Snapshot: September 3, 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 12 cold email infrastructure providers based in the 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 |  Mailercloudmailercloud.comHQ: HQ not recorded; location: London, United KingdomReported employees: 11-50 | HQ not recorded; location: London, United Kingdom | 11-50 | Exact match | 30 contacts → |
“Since 2013, mailercloud has expanded to become one of the largest and most extensive cloud-based email services, that resolves the task of reliably delivering emails on behalf of…” Recorded description excerpt · September 3, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 |  Folderly INCfolderly.comHQ: HQ not recorded; location: London, United KingdomReported employees: 51-200 | HQ not recorded; location: London, United Kingdom | 51-200 | Exact match | 29 contacts → |
“Folderly is an all-in-one email deliverability platform to supercharge your email performance.” Recorded description excerpt · September 3, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 |  Eloquent Technologies Limitedeloquent-technologies-group.comHQ: HQ not recorded; location: Stratford Upon Avon, United KingdomReported employees: 11-50 | HQ not recorded; location: Stratford Upon Avon, United Kingdom | 11-50 | Exact match | 28 contacts → |
“Eloquent operates a range of platforms across various secure data centres in the UK, all of which are connected to our network and serve as the delivery point for our services.” Recorded description excerpt · September 3, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 |  Mailxpertisemailxpertise.comHQ: HQ not recorded; location: Ashford, United KingdomReported employees: 11-50 | HQ not recorded; location: Ashford, United Kingdom | 11-50 | Exact match | 8 contacts → |
“We are MailXpertise, a global ESP (email service provider), specialists in made-to-measure email and SMS solutions for marketing professionals.” Recorded description excerpt · September 3, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 |  Leveraged Outboundleveragedoutbound.ioHQ: HQ not recorded; location: London, United KingdomReported employees: 1-10 | HQ not recorded; location: London, United Kingdom | 1-10 | Exact match | 6 contacts → |
“Most B2B service businesses don't have a pipeline problem.” Recorded description excerpt · September 3, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 |  Kumomtakumomta.comHQ: HQ not recorded; location: London, United KingdomReported employees: 1-10 | HQ not recorded; location: London, United Kingdom | 1-10 | Exact match | 4 contacts → |
“KumoMTA is the open-source email infrastructure for enterprises and high-volume senders who want control and continuity without the risk, volatility, or pricing shocks that come…” Recorded description excerpt · September 3, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 |  Mailysermailyser.comHQ: HQ not recorded; location: London, United KingdomReported employees: 1-10 | HQ not recorded; location: London, United Kingdom | 1-10 | Exact match | 3 contacts → |
“About Us: At Mailyser, we are passionate about helping businesses and individuals maximize their email marketing potential.” Recorded description excerpt · September 3, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 |  247emaildata247emaildata.comHQ: HQ not recorded; location: Chesterfield, United KingdomReported employees: 11-50 | HQ not recorded; location: Chesterfield, United Kingdom | 11-50 | Exact match | 2 contacts → |
“An Enterprise class email marketing platform, providing industry leading delivery rates.” Recorded description excerpt · September 3, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 |  Quinsetquinset.co.ukHQ: HQ not recorded; location: London, United KingdomReported employees: 1-10 | HQ not recorded; location: London, United Kingdom | 1-10 | Exact match | 2 contacts → |
“Helping Recruiters With Email Deliverability.” Recorded description excerpt · September 3, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 |  Cloudessencecloudessence.ukHQ: HQ not recorded; location: Newhaven, United KingdomReported employees: 1-10 | HQ not recorded; location: Newhaven, United Kingdom | 1-10 | Exact match | 2 contacts → |
“Whether you need a single Email account for your small business or a Virtual DataCentre for your large enterprise, we have the experience and skills to provide you with trusted…” Recorded description excerpt · September 3, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 |  Inboxwizardsinboxwizards.comHQ: HQ not recorded; location: London, United KingdomReported employees: 1-10 | HQ not recorded; location: London, United Kingdom | 1-10 | Exact match | 1 contacts → |
“InboxWizards help small to large email senders deliver their emails to the Inbox.” Recorded description excerpt · September 3, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 |  RED Circle Digitalredcircledigital.co.ukHQ: HQ not recorded; location: London, United KingdomReported employees: 1-10 | HQ not recorded; location: London, United Kingdom | 1-10 | Exact match | 1 contacts → |
“Red Circle Digital will help you get the most from your email marketing.” Recorded description excerpt · September 3, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 12 of 38 company matches
Build a targeted audience, find relevant contacts and export available records to your workflow.
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Cold email infrastructure providers: dataset insights
September 3, 2026These summaries describe recorded coverage in this saved dataset. Coverage describes records in RevenueBase, rather than a census of every business in this market.
Reported company sizes
37 records in the displayed employee bands.
1 matching records are outside the displayed bands or do not have a displayed size. Bars show shares of the displayed bands.
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.
Coverage describes records in RevenueBase, rather than a census of every business in this market.
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 3, 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 ↗
Questions about this company list
What does Exact match mean for cold email infrastructure 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 cold email infrastructure providers did RevenueBase find based in the United Kingdom?
The saved snapshot records 38 matching company records, 196 tracked contacts and 54 verified emails. The public preview displays 12 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 3, 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
Cold email infrastructure providers by geography
Cite this list
RevenueBase Data Team. Top 12 cold email infrastructure providers based in the United Kingdom. Snapshot: September 3, 2026. https://revenuebase.ai/companies/cold-email-infrastructure-providers/united-kingdom.
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
- Cold email infrastructure providers based in the United States
- Cold email infrastructure providers based in London, United Kingdom
- Cold email infrastructure providers based in India
- AI companies based in the United Kingdom
- Cybersecurity companies based in the United Kingdom
- Manufacturing companies based in the United Kingdom
Company intelligence · public preview
Top 12 cold email infrastructure providers based in the United Kingdom
RevenueBase records 38 matching company records for cold email infrastructure providers based in the United Kingdom, with 196 tracked contacts and 54 verified work emails.
This public preview shows 12 selected records ordered by tracked contacts. RevenueBase SmartSearch finds company descriptions that match by meaning at Exact. Snapshot: September 3, 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 12 cold email infrastructure providers based in the 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 | Mailercloudmailercloud.com HQ: HQ not recorded; location: London, United KingdomReported employees: 11-50 | HQ not recorded; location: London, United Kingdom | 11-50 | Exact match | 30 contacts → |
“Since 2013, mailercloud has expanded to become one of the largest and most extensive cloud-based email services, that resolves the task of reliably delivering emails on behalf of…” Recorded description excerpt · September 3, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 | Folderly INCfolderly.com HQ: HQ not recorded; location: London, United KingdomReported employees: 51-200 | HQ not recorded; location: London, United Kingdom | 51-200 | Exact match | 29 contacts → |
“Folderly is an all-in-one email deliverability platform to supercharge your email performance.” Recorded description excerpt · September 3, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 | Eloquent Technologies Limitedeloquent-technologies-group.com HQ: HQ not recorded; location: Stratford Upon Avon, United KingdomReported employees: 11-50 | HQ not recorded; location: Stratford Upon Avon, United Kingdom | 11-50 | Exact match | 28 contacts → |
“Eloquent operates a range of platforms across various secure data centres in the UK, all of which are connected to our network and serve as the delivery point for our services.” Recorded description excerpt · September 3, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 | Mailxpertisemailxpertise.com HQ: HQ not recorded; location: Ashford, United KingdomReported employees: 11-50 | HQ not recorded; location: Ashford, United Kingdom | 11-50 | Exact match | 8 contacts → |
“We are MailXpertise, a global ESP (email service provider), specialists in made-to-measure email and SMS solutions for marketing professionals.” Recorded description excerpt · September 3, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 | Leveraged Outboundleveragedoutbound.io HQ: HQ not recorded; location: London, United KingdomReported employees: 1-10 | HQ not recorded; location: London, United Kingdom | 1-10 | Exact match | 6 contacts → |
“Most B2B service businesses don't have a pipeline problem.” Recorded description excerpt · September 3, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 | Kumomtakumomta.com HQ: HQ not recorded; location: London, United KingdomReported employees: 1-10 | HQ not recorded; location: London, United Kingdom | 1-10 | Exact match | 4 contacts → |
“KumoMTA is the open-source email infrastructure for enterprises and high-volume senders who want control and continuity without the risk, volatility, or pricing shocks that come…” Recorded description excerpt · September 3, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 | Mailysermailyser.com HQ: HQ not recorded; location: London, United KingdomReported employees: 1-10 | HQ not recorded; location: London, United Kingdom | 1-10 | Exact match | 3 contacts → |
“About Us: At Mailyser, we are passionate about helping businesses and individuals maximize their email marketing potential.” Recorded description excerpt · September 3, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 | 247emaildata247emaildata.com HQ: HQ not recorded; location: Chesterfield, United KingdomReported employees: 11-50 | HQ not recorded; location: Chesterfield, United Kingdom | 11-50 | Exact match | 2 contacts → |
“An Enterprise class email marketing platform, providing industry leading delivery rates.” Recorded description excerpt · September 3, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 | Quinsetquinset.co.uk HQ: HQ not recorded; location: London, United KingdomReported employees: 1-10 | HQ not recorded; location: London, United Kingdom | 1-10 | Exact match | 2 contacts → |
“Helping Recruiters With Email Deliverability.” Recorded description excerpt · September 3, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 | Cloudessencecloudessence.uk HQ: HQ not recorded; location: Newhaven, United KingdomReported employees: 1-10 | HQ not recorded; location: Newhaven, United Kingdom | 1-10 | Exact match | 2 contacts → |
“Whether you need a single Email account for your small business or a Virtual DataCentre for your large enterprise, we have the experience and skills to provide you with trusted…” Recorded description excerpt · September 3, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 | Inboxwizardsinboxwizards.com HQ: HQ not recorded; location: London, United KingdomReported employees: 1-10 | HQ not recorded; location: London, United Kingdom | 1-10 | Exact match | 1 contacts → |
“InboxWizards help small to large email senders deliver their emails to the Inbox.” Recorded description excerpt · September 3, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 | RED Circle Digitalredcircledigital.co.uk HQ: HQ not recorded; location: London, United KingdomReported employees: 1-10 | HQ not recorded; location: London, United Kingdom | 1-10 | Exact match | 1 contacts → |
“Red Circle Digital will help you get the most from your email marketing.” Recorded description excerpt · September 3, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 12 of 38 company matches
Build a targeted audience, find relevant contacts and export available records to your workflow.
Free signup · 500 credits · limited free results
Cold email infrastructure providers: dataset insights
September 3, 2026These summaries describe recorded coverage in this saved dataset. Coverage describes records in RevenueBase, rather than a census of every business in this market.
Reported company sizes
37 records in the displayed employee bands.
1 matching records are outside the displayed bands or do not have a displayed size. Bars show shares of the displayed bands.
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.
Coverage describes records in RevenueBase, rather than a census of every business in this market.
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 3, 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 ↗
Questions about this company list
What does Exact match mean for cold email infrastructure 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 cold email infrastructure providers did RevenueBase find based in the United Kingdom?
The saved snapshot records 38 matching company records, 196 tracked contacts and 54 verified emails. The public preview displays 12 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 3, 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
Cold email infrastructure providers by geography
Cite this list
RevenueBase Data Team. Top 12 cold email infrastructure providers based in the United Kingdom. Snapshot: September 3, 2026. https://revenuebase.ai/companies/cold-email-infrastructure-providers/united-kingdom.
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
- Cold email infrastructure providers based in the United States
- Cold email infrastructure providers based in London, United Kingdom
- Cold email infrastructure providers based in India
- AI companies based in the United Kingdom
- Cybersecurity companies based in the United Kingdom
- Manufacturing companies based in the United Kingdom