Company lists · Data refreshed September 2026

Top 14 Inbound call management software vendors based in the United Kingdom

RevenueBase identified 41 company matches for inbound call management software vendors associated with the United Kingdom as of September 2026 and tracks 537 professional contacts across them, including 157 with verified work emails. London is the largest hub.

This list covers company matches for inbound call management software vendors 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 28, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, the natural-language company search RevenueBase customers use to build their own targeted lists and unlock verified emails and direct dials at the companies on them. How these lists are built and judged.

How to read this list RevenueBase SmartSearch · Exact Recorded Sep 28, 2026 How this list was built
41Companies
537Contacts tracked
157Verified emails
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The 14 largest inbound call management software vendors based in the United Kingdom

Ranked by team size
Top 14 of 41 company matches for inbound call management software vendors based in the United Kingdom, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 28, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#CompanyRevenueBase SmartSearchHeadquartersEmployeesContacts
1Exact matchLondon, United KingdomHQ recorded Sep 28, 202651-200127 contacts →

Exact match

“Natterbox is an AI-powered contact center solution that's natively integrated to Salesforce.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
2Exact matchEasingwold, United KingdomHQ recorded Sep 28, 202651-20049 contacts →

Exact match

“TeleWare design software to help businesses communicate better with their customers and employees by routing communications more effectively.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
3Exact matchLondon, United KingdomHQ recorded Sep 28, 202611-5025 contacts →

Exact match

“Noetica are a provider of Customer Interaction Management software for use in contact centres.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
4Exact matchChristchurch, United KingdomHQ recorded Sep 28, 202611-5024 contacts →

Exact match

“Datatrack is a technology leader through its development of communications analytics software.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
5Exact matchManchester, United KingdomHQ recorded Sep 28, 202611-5024 contacts →

Exact match

“Empower agents and amazing things happen.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
6Exact matchGlasgow, United KingdomHQ recorded Sep 28, 20261-1016 contacts →

Exact match

“Established since 2004, we provide Enterprise CRM & Telephony Systems for Contact Centres, which help to drive performance improvement, customer engagement & compliance.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
7Exact matchGlasgow, United KingdomHQ recorded Sep 28, 202611-509 contacts →

Exact match

“Inisoft are experts in developing contact centre software which empowers agents and elevates customer experience.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
8Exact matchWadebridge, United KingdomHQ recorded Sep 28, 20261-106 contacts →

Exact match

“Teleproject UK is an established provider of hosted call management solutions.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
9Exact matchBristol, United KingdomHQ recorded Sep 28, 202611-505 contacts →

Exact match

“With over 40 years of experience in the management team of providing in-house and outsourced telephone services, Connect Worldwide Services has unrivalled expertise in…”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
10Exact matchSittingbourne, United KingdomHQ recorded Sep 28, 202611-503 contacts →

Exact match

“At Rhubarb, we believe that everyone’s voice has the ability to impact the world.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
11Exact matchLondon, United KingdomHQ recorded Sep 28, 202611-502 contacts →

Exact match

“Tri-Line specialise in the development of innovative solutions for the telecommunications field.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
12Exact matchCroydon, United KingdomHQ recorded Sep 28, 20261-102 contacts →

Exact match

“Established for 20 years, we provide over 2500 businesses in the UK with bespoke Telephone System packages that ensure you will never miss another call.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
13Exact matchLondon, United KingdomHQ recorded Sep 28, 20261-102 contacts →

Exact match

“nSolve are the proud developers of nCall - the comprehensive Telephone Answering Service software package.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
14Exact matchBristol, United KingdomHQ recorded Sep 28, 20261-101 contacts →

Exact match

“Most companies just don’t take their telecoms seriously enough!”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase

Showing 14 of 41 inbound call management software vendors based in the United Kingdom

See the full list, filter by size, metro and specialty, and access 157 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Inbound call management software vendors based in the United Kingdom at a glance

As of Sep 28, 2026
29.2%Verified-email coverage
13.1Average contacts per company
11-50Median size (employees)
26.8%Largest-city concentration · London
Sep 28, 2026Page data refreshed

Companies by employee count

1-10
13
11-50
21
51-200
6
201-500
1

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 41 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 “inbound call management software vendors” 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 157 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 28, 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 “inbound call management software vendors”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many inbound call management software vendors are there based in the United Kingdom?

RevenueBase identified 41 company matches for inbound call management software vendors 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?

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

Which city has the most inbound call management software vendors?

London leads with 11 company records, followed by Birmingham (3) and Bristol (2).

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 157 professional contacts with verified work emails tracked across these 41 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 28, 2026.

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About this data

RevenueBase is a B2B data infrastructure company. Its company graph covers 60 million companies and 398.9 million professional contacts, with emails verified on a rolling cadence rather than scraped once and left to decay. These company lists are generated directly from that graph with RevenueBase 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.