Company lists · Data refreshed September 2026
Top 25 24/7 call center services based in the United Kingdom
RevenueBase identified 104 company matches for 24/7 call center services associated with the United Kingdom as of September 2026 and tracks 3,229 professional contacts across them, including 403 with verified work emails. London is the largest hub.
This list covers company matches for 24/7 call center 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 September 27, 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 24/7 call center services based in the United Kingdom
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 873 contacts → | ||||
Exact match “At Convergys Intelligent Contact, we build sustainable revenue streams for our clients.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase | |||||
| 2 | 327 contacts → | ||||
Exact match “Skilled talent, proven processes and leading technology.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase | |||||
| 3 | 205 contacts → | ||||
Exact match “Established since 1998 Clearanswer is an expert provider of contact centre solutions.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase | |||||
| 4 | 140 contacts → | ||||
Exact match “Echoing our clients in every conversation.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase | |||||
| 5 | 90 contacts → | ||||
Exact match “A world class offshore outsourcing agency, with offices in London and Harare, we have access to some of the best educated, best spoken graduates you will find anywhere in the…” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase | |||||
| 6 | 83 contacts → | ||||
Exact match “We are FM Outsource, a modern customer service outsourcer.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase | |||||
| 7 | 83 contacts → | ||||
Exact match “We are Subfero.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase | |||||
| 8 | 73 contacts → | ||||
Exact match “We’re a 24/7 specialist outsourced Contact Centre business.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase | |||||
| 9 | 59 contacts → | ||||
Exact match “CallCare is your outsourced contact centre and customer service partner.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase | |||||
| 10 | 54 contacts → | ||||
Exact match “We are an established AI-enabled call centre specialising in every aspect of sales and customer service.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase | |||||
| 11 | 54 contacts → | ||||
Exact match “Orca offers flexible and adaptable call answering and live chat services that help clients manage costs effectively.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase | |||||
| 12 | 52 contacts → | ||||
Exact match “Cymphony is your 24/7 customer support partner.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase | |||||
| 13 | 46 contacts → | ||||
Exact match “Direct Response can provide outsourcing of voice, data and contact centre services for organisation from a global business to a one-man operation, delivering outstanding service…” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase | |||||
| 14 | 40 contacts → | ||||
Exact match “Kingdom Vision is a medium to take your business from good to great.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase | |||||
| 15 | 39 contacts → | ||||
Exact match “For over 20 years, Chase Response has delivered unrivalled standards in call centre outsourcing and customer management services.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase | |||||
| 16 | 35 contacts → | ||||
Exact match “Spark Response provides ideas driven order fulfilment and contact centre services to help brands and retailers grow.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase | |||||
| 17 | 33 contacts → | ||||
Exact match “We are an award-winning customer experience optimisation provider based in the UK, delivering seamless 24/7 back and front office solutions.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase | |||||
| 18 | 29 contacts → | ||||
Exact match “As a boutique customer service provider, we put customers and colleagues at the heart of everything we do, helping businesses grow by connecting with their customers.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase | |||||
| 19 | 26 contacts → | ||||
Exact match “Established in Frontline has become one of the UK's leading Telephone Answering Services.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase | |||||
| 20 | 21 contacts → | ||||
Exact match “OpenContact is your trusted UK-based partner for multi-channel customer contact.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase | |||||
| 21 | 18 contacts → | ||||
Exact match “At Phoneta we’re always on the phone so you don’t have to be.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase | |||||
| 22 | 16 contacts → | ||||
Exact match “Uncomplicated & friendly call answering based in Bradford, West Yorkshire.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase | |||||
| 23 | 13 contacts → | ||||
Exact match “At SinglePoint Calls, we pride ourselves on being the 'Best Kept Secret' Our aim is to provide an exceptional level of service that is indistinguishable from having an in-house…” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase | |||||
| 24 | 11 contacts → | ||||
Exact match “UK Outsource Specialists – First Call Helpdesk At First Call Helpdesk, we don’t just provide support-we co-create seamless customer experiences that strengthen businesses.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase | |||||
| 25 | 8 contacts → | ||||
Exact match “At Forge Solutions, we redefine call centre services with state-of-the-art technology and tailored solutions.” Recorded in the RevenueBase company graph · Sep 27, 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 “24/7 call center 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 104 24/7 call center services based in the United Kingdom
See the full list, filter by size, metro and specialty, and access 403 tracked professional contacts with verified work emails. Direct dials are available where recorded.
Free signup · no credit card
24/7 call center services based in the United Kingdom at a glance
As of Sep 27, 2026Companies by employee count
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 104 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 “24/7 call center 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 403 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 27, 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 “24/7 call center services”; each Exact match badge shows search membership, not an individual similarity or quality score.
How many 24/7 call center services are there based in the United Kingdom?
RevenueBase identified 104 company matches for 24/7 call center services 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?
Convergys Intelligent Contact tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.
Which city has the most 24/7 call center services?
London leads with 25 company records, followed by Birmingham (3) and Bristol (3).
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 403 professional contacts with verified work emails tracked across these 104 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 27, 2026.
Ready to reach these companies? Verified emails and direct dials for all 104 24/7 call center services based in the United Kingdom. Start with a free account, no credit card.
Download this list →Related lists
24/7 call center services by geography
- 24/7 call center services based in Brazil
- 24/7 call center services based in Canada
- 24/7 call center services based in Egypt
- 24/7 call center services based in France
- 24/7 call center services based in Germany
- 24/7 call center services based in India
- 24/7 call center services based in Italy
- 24/7 call center services based in Mexico
- 24/7 call center services based in the Netherlands
- 24/7 call center services based in Pakistan
- 24/7 call center services based in the Philippines
- 24/7 call center services based in Poland
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
- All company lists
- Lists by location
- Lists A-Z
- New lists
- 24/7 call center services based in Brazil
- 24/7 call center services based in Canada
- 24/7 call center services based in Egypt
- 24/7 call center services based in France
- 24/7 call center services based in Germany
- 24/7 call center services based in India
Company intelligence · public preview
Top 25 24/7 call center services 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 104 matching company records for 24/7 call center services based in the United Kingdom, with 3,229 tracked contacts and 403 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 27, 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 24/7 call center services 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 |  Convergys Intelligent Contactconvergys.comHQ: Altrincham, United KingdomReported employees: 10001+ | Altrincham, United Kingdom | 10001+ | Exact match | 873 contacts → |
“At Convergys Intelligent Contact, we build sustainable revenue streams for our clients.” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 |  ANT Marketingantmarketing.comHQ: Sheffield, United KingdomReported employees: 501-1,000 | Sheffield, United Kingdom | 501-1,000 | Exact match | 327 contacts → |
“Skilled talent, proven processes and leading technology.” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 |  Clearanswer Call Centresclearanswer.co.ukHQ: Hull, United KingdomReported employees: 501-1,000 | Hull, United Kingdom | 501-1,000 | Exact match | 205 contacts → |
“Established since 1998 Clearanswer is an expert provider of contact centre solutions.” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 |  Echo-U LTDecho-u.co.ukHQ: Newcastle Upon Tyne, United KingdomReported employees: 201-500 | Newcastle Upon Tyne, United Kingdom | 201-500 | Exact match | 140 contacts → |
“Echoing our clients in every conversation.” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 |  Youpro Contactyouprocontact.co.ukHQ: London, United KingdomReported employees: 51-200 | London, United Kingdom | 51-200 | Exact match | 90 contacts → |
“A world class offshore outsourcing agency, with offices in London and Harare, we have access to some of the best educated, best spoken graduates you will find anywhere in the…” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 |  FM Outsourcefmoutsource.comHQ: Bury, United KingdomReported employees: 201-500 | Bury, United Kingdom | 201-500 | Exact match | 83 contacts → |
“We are FM Outsource, a modern customer service outsourcer.” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 |  Subferosubfero.comHQ: Bristol, United KingdomReported employees: 51-200 | Bristol, United Kingdom | 51-200 | Exact match | 83 contacts → |
“We are Subfero.” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 |  Connect Assistconnectassist.co.ukHQ: Nantgawr, United KingdomReported employees: 201-500 | Nantgawr, United Kingdom | 201-500 | Exact match | 73 contacts → |
“We’re a 24/7 specialist outsourced Contact Centre business.” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 |  Callcarecallcare247.comHQ: London, United KingdomReported employees: 1,001-5,000 | London, United Kingdom | 1,001-5,000 | Exact match | 59 contacts → |
“CallCare is your outsourced contact centre and customer service partner.” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 |  Impact Call Centreimpactcallcentre.co.ukHQ: Romsey, United KingdomReported employees: 201-500 | Romsey, United Kingdom | 201-500 | Exact match | 54 contacts → |
“We are an established AI-enabled call centre specialising in every aspect of sales and customer service.” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 |  Orca Call Answering & Live Chatweareorca.comHQ: Wrexham, United KingdomReported employees: 51-200 | Wrexham, United Kingdom | 51-200 | Exact match | 54 contacts → |
“Orca offers flexible and adaptable call answering and live chat services that help clients manage costs effectively.” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 |  Cymphonycymphony.co.ukHQ: Crewe, United KingdomReported employees: 51-200 | Crewe, United Kingdom | 51-200 | Exact match | 52 contacts → |
“Cymphony is your 24/7 customer support partner.” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 |  Direct Responsedrltd.comHQ: London, United KingdomReported employees: 51-200 | London, United Kingdom | 51-200 | Exact match | 46 contacts → |
“Direct Response can provide outsourcing of voice, data and contact centre services for organisation from a global business to a one-man operation, delivering outstanding service…” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 |  Kingdom Visionkingdom-vision.comHQ: London, United KingdomReported employees: 11-50 | London, United Kingdom | 11-50 | Exact match | 40 contacts → |
“Kingdom Vision is a medium to take your business from good to great.” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 |  Chase Responsechaseresponse.comHQ: Croydon, United KingdomReported employees: 501-1,000 | Croydon, United Kingdom | 501-1,000 | Exact match | 39 contacts → |
“For over 20 years, Chase Response has delivered unrivalled standards in call centre outsourcing and customer management services.” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 |  Spark Responsesparkresponse.comHQ: Gateshead, United KingdomReported employees: 201-500 | Gateshead, United Kingdom | 201-500 | Exact match | 35 contacts → |
“Spark Response provides ideas driven order fulfilment and contact centre services to help brands and retailers grow.” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 |  Dialect Communicationsdialectcommunications.comHQ: Tyne & Wear, United KingdomReported employees: 11-50 | Tyne & Wear, United Kingdom | 11-50 | Exact match | 33 contacts → |
“We are an award-winning customer experience optimisation provider based in the UK, delivering seamless 24/7 back and front office solutions.” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 |  Weanswerweanswer.co.ukHQ: Chippenham, United KingdomReported employees: 201-500 | Chippenham, United Kingdom | 201-500 | Exact match | 29 contacts → |
“As a boutique customer service provider, we put customers and colleagues at the heart of everything we do, helping businesses grow by connecting with their customers.” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 |  Frontline Communications Group LTDwearefrontline.co.ukHQ: Portsmouth, United KingdomReported employees: 51-200 | Portsmouth, United Kingdom | 51-200 | Exact match | 26 contacts → |
“Established in Frontline has become one of the UK's leading Telephone Answering Services.” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 |  Opencontactopencontact.co.ukHQ: Norwich, United KingdomReported employees: 51-200 | Norwich, United Kingdom | 51-200 | Exact match | 21 contacts → |
“OpenContact is your trusted UK-based partner for multi-channel customer contact.” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 |  Phonetaphoneta.co.ukHQ: Redruth, United KingdomReported employees: 51-200 | Redruth, United Kingdom | 51-200 | Exact match | 18 contacts → |
“At Phoneta we’re always on the phone so you don’t have to be.” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 |  Allcallallcallgroup.comHQ: Bradford, United KingdomReported employees: 1-10 | Bradford, United Kingdom | 1-10 | Exact match | 16 contacts → |
“Uncomplicated & friendly call answering based in Bradford, West Yorkshire.” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 |  Singlepoint Calls LTDsinglepointcalls.co.ukHQ: Daventry, United KingdomReported employees: 11-50 | Daventry, United Kingdom | 11-50 | Exact match | 13 contacts → |
“At SinglePoint Calls, we pride ourselves on being the 'Best Kept Secret' Our aim is to provide an exceptional level of service that is indistinguishable from having an in-house…” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 |  First Call Helpdesk LTDfirstcallhelpdesk.co.ukHQ: Newbury, United KingdomReported employees: 11-50 | Newbury, United Kingdom | 11-50 | Exact match | 11 contacts → |
“UK Outsource Specialists – First Call Helpdesk At First Call Helpdesk, we don’t just provide support-we co-create seamless customer experiences that strengthen businesses.” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 |  Forge Solutions LTDforgesolutions.co.ukHQ: Bury, United KingdomReported employees: 51-200 | Bury, United Kingdom | 51-200 | Exact match | 8 contacts → |
“At Forge Solutions, we redefine call centre services with state-of-the-art technology and tailored solutions.” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 104 company matches
Build a targeted audience, find relevant contacts and export available records to your workflow.
Free signup · 500 credits · limited free results
24/7 call center services: dataset insights
September 27, 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
103 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.
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 104 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 27, 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 24/7 call center services?
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 24/7 call center services did RevenueBase find based in the United Kingdom?
The saved snapshot records 104 matching company records, 3,229 tracked contacts and 403 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 27, 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
24/7 call center services by geography
- 24/7 call center services based in Brazil
- 24/7 call center services based in Canada
- 24/7 call center services based in Egypt
- 24/7 call center services based in France
- 24/7 call center services based in Germany
- 24/7 call center services based in India
- 24/7 call center services based in Italy
- 24/7 call center services based in Mexico
- 24/7 call center services based in the Netherlands
- 24/7 call center services based in Pakistan
- 24/7 call center services based in the Philippines
- 24/7 call center services based in Poland
Cite this list
RevenueBase Data Team. Top 25 24/7 call center services based in the United Kingdom. Snapshot: September 27, 2026. https://revenuebase.ai/companies/24-7-call-center-services/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
- 24/7 call center services based in Brazil
- 24/7 call center services based in Canada
- 24/7 call center services based in Egypt
- 24/7 call center services based in France
- 24/7 call center services based in Germany
- 24/7 call center services based in India
Company intelligence · public preview
Top 25 24/7 call center services based in the United Kingdom
RevenueBase records 104 matching company records for 24/7 call center services based in the United Kingdom, with 3,229 tracked contacts and 403 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 27, 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 24/7 call center services 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 | Convergys Intelligent Contactconvergys.com HQ: Altrincham, United KingdomReported employees: 10001+ | Altrincham, United Kingdom | 10001+ | Exact match | 873 contacts → |
“At Convergys Intelligent Contact, we build sustainable revenue streams for our clients.” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 | ANT Marketingantmarketing.com HQ: Sheffield, United KingdomReported employees: 501-1,000 | Sheffield, United Kingdom | 501-1,000 | Exact match | 327 contacts → |
“Skilled talent, proven processes and leading technology.” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 | Clearanswer Call Centresclearanswer.co.uk HQ: Hull, United KingdomReported employees: 501-1,000 | Hull, United Kingdom | 501-1,000 | Exact match | 205 contacts → |
“Established since 1998 Clearanswer is an expert provider of contact centre solutions.” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 | Echo-U LTDecho-u.co.uk HQ: Newcastle Upon Tyne, United KingdomReported employees: 201-500 | Newcastle Upon Tyne, United Kingdom | 201-500 | Exact match | 140 contacts → |
“Echoing our clients in every conversation.” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 | Youpro Contactyouprocontact.co.uk HQ: London, United KingdomReported employees: 51-200 | London, United Kingdom | 51-200 | Exact match | 90 contacts → |
“A world class offshore outsourcing agency, with offices in London and Harare, we have access to some of the best educated, best spoken graduates you will find anywhere in the…” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 | FM Outsourcefmoutsource.com HQ: Bury, United KingdomReported employees: 201-500 | Bury, United Kingdom | 201-500 | Exact match | 83 contacts → |
“We are FM Outsource, a modern customer service outsourcer.” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 | Subferosubfero.com HQ: Bristol, United KingdomReported employees: 51-200 | Bristol, United Kingdom | 51-200 | Exact match | 83 contacts → |
“We are Subfero.” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 | Connect Assistconnectassist.co.uk HQ: Nantgawr, United KingdomReported employees: 201-500 | Nantgawr, United Kingdom | 201-500 | Exact match | 73 contacts → |
“We’re a 24/7 specialist outsourced Contact Centre business.” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 | Callcarecallcare247.com HQ: London, United KingdomReported employees: 1,001-5,000 | London, United Kingdom | 1,001-5,000 | Exact match | 59 contacts → |
“CallCare is your outsourced contact centre and customer service partner.” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 | Impact Call Centreimpactcallcentre.co.uk HQ: Romsey, United KingdomReported employees: 201-500 | Romsey, United Kingdom | 201-500 | Exact match | 54 contacts → |
“We are an established AI-enabled call centre specialising in every aspect of sales and customer service.” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 | Orca Call Answering & Live Chatweareorca.com HQ: Wrexham, United KingdomReported employees: 51-200 | Wrexham, United Kingdom | 51-200 | Exact match | 54 contacts → |
“Orca offers flexible and adaptable call answering and live chat services that help clients manage costs effectively.” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 | Cymphonycymphony.co.uk HQ: Crewe, United KingdomReported employees: 51-200 | Crewe, United Kingdom | 51-200 | Exact match | 52 contacts → |
“Cymphony is your 24/7 customer support partner.” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 | Direct Responsedrltd.com HQ: London, United KingdomReported employees: 51-200 | London, United Kingdom | 51-200 | Exact match | 46 contacts → |
“Direct Response can provide outsourcing of voice, data and contact centre services for organisation from a global business to a one-man operation, delivering outstanding service…” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 | Kingdom Visionkingdom-vision.com HQ: London, United KingdomReported employees: 11-50 | London, United Kingdom | 11-50 | Exact match | 40 contacts → |
“Kingdom Vision is a medium to take your business from good to great.” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 | Chase Responsechaseresponse.com HQ: Croydon, United KingdomReported employees: 501-1,000 | Croydon, United Kingdom | 501-1,000 | Exact match | 39 contacts → |
“For over 20 years, Chase Response has delivered unrivalled standards in call centre outsourcing and customer management services.” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 | Spark Responsesparkresponse.com HQ: Gateshead, United KingdomReported employees: 201-500 | Gateshead, United Kingdom | 201-500 | Exact match | 35 contacts → |
“Spark Response provides ideas driven order fulfilment and contact centre services to help brands and retailers grow.” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | Dialect Communicationsdialectcommunications.com HQ: Tyne & Wear, United KingdomReported employees: 11-50 | Tyne & Wear, United Kingdom | 11-50 | Exact match | 33 contacts → |
“We are an award-winning customer experience optimisation provider based in the UK, delivering seamless 24/7 back and front office solutions.” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 | Weanswerweanswer.co.uk HQ: Chippenham, United KingdomReported employees: 201-500 | Chippenham, United Kingdom | 201-500 | Exact match | 29 contacts → |
“As a boutique customer service provider, we put customers and colleagues at the heart of everything we do, helping businesses grow by connecting with their customers.” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 | Frontline Communications Group LTDwearefrontline.co.uk HQ: Portsmouth, United KingdomReported employees: 51-200 | Portsmouth, United Kingdom | 51-200 | Exact match | 26 contacts → |
“Established in Frontline has become one of the UK's leading Telephone Answering Services.” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 | Opencontactopencontact.co.uk HQ: Norwich, United KingdomReported employees: 51-200 | Norwich, United Kingdom | 51-200 | Exact match | 21 contacts → |
“OpenContact is your trusted UK-based partner for multi-channel customer contact.” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 | Phonetaphoneta.co.uk HQ: Redruth, United KingdomReported employees: 51-200 | Redruth, United Kingdom | 51-200 | Exact match | 18 contacts → |
“At Phoneta we’re always on the phone so you don’t have to be.” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 | Allcallallcallgroup.com HQ: Bradford, United KingdomReported employees: 1-10 | Bradford, United Kingdom | 1-10 | Exact match | 16 contacts → |
“Uncomplicated & friendly call answering based in Bradford, West Yorkshire.” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 | Singlepoint Calls LTDsinglepointcalls.co.uk HQ: Daventry, United KingdomReported employees: 11-50 | Daventry, United Kingdom | 11-50 | Exact match | 13 contacts → |
“At SinglePoint Calls, we pride ourselves on being the 'Best Kept Secret' Our aim is to provide an exceptional level of service that is indistinguishable from having an in-house…” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 | First Call Helpdesk LTDfirstcallhelpdesk.co.uk HQ: Newbury, United KingdomReported employees: 11-50 | Newbury, United Kingdom | 11-50 | Exact match | 11 contacts → |
“UK Outsource Specialists – First Call Helpdesk At First Call Helpdesk, we don’t just provide support-we co-create seamless customer experiences that strengthen businesses.” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 | Forge Solutions LTDforgesolutions.co.uk HQ: Bury, United KingdomReported employees: 51-200 | Bury, United Kingdom | 51-200 | Exact match | 8 contacts → |
“At Forge Solutions, we redefine call centre services with state-of-the-art technology and tailored solutions.” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 104 company matches
Build a targeted audience, find relevant contacts and export available records to your workflow.
Free signup · 500 credits · limited free results
24/7 call center services: dataset insights
September 27, 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
103 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.
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 104 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 27, 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 24/7 call center services?
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 24/7 call center services did RevenueBase find based in the United Kingdom?
The saved snapshot records 104 matching company records, 3,229 tracked contacts and 403 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 27, 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
24/7 call center services by geography
- 24/7 call center services based in Brazil
- 24/7 call center services based in Canada
- 24/7 call center services based in Egypt
- 24/7 call center services based in France
- 24/7 call center services based in Germany
- 24/7 call center services based in India
- 24/7 call center services based in Italy
- 24/7 call center services based in Mexico
- 24/7 call center services based in the Netherlands
- 24/7 call center services based in Pakistan
- 24/7 call center services based in the Philippines
- 24/7 call center services based in Poland
Cite this list
RevenueBase Data Team. Top 25 24/7 call center services based in the United Kingdom. Snapshot: September 27, 2026. https://revenuebase.ai/companies/24-7-call-center-services/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
- 24/7 call center services based in Brazil
- 24/7 call center services based in Canada
- 24/7 call center services based in Egypt
- 24/7 call center services based in France
- 24/7 call center services based in Germany
- 24/7 call center services based in India