Company lists · Data refreshed September 2026

Top 25 Enterprise voice consultants based in the United Kingdom

Name: Enterprise voice consultants based in the United Kingdom
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 28, 2026 238 companies tracked

RevenueBase identified 238 enterprise voice consultants headquartered in the United Kingdom as of September 2026 and tracks 1,852 professional contacts across them, including 622 with verified work emails. London is the largest hub.

This list covers enterprise voice consultants headquartered in the United Kingdom, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Every row shows the company's own description, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 28, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase Smart Search, 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 HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 28, 2026 86% judged on-target in blind review

238Companies

1,852Contacts tracked

622Verified emails

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The 25 largest enterprise voice consultants based in the United Kingdom

Ranked by team size

Top 25 of 238 enterprise voice consultants based in the United Kingdom, ranked by team size, largest first. Data refreshed Sep 28, 2026. RevenueBase Smart Search rates how each company's information relates to enterprise voice consultants: strong evidence (its own description names it), partial (names part of it), indirect (matched on the rest of its profile rather than the description shown). Click a contact count to view that company's people.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	Avoira	Partial evidence	Bury, United KingdomHQ checked Sep 28, 2026	51-200	156 contacts →
	Partial evidence “Our expertise spans consultancy, sales, installation and maintenance services across the communication spectrum, from unified comms systems and hardware, CX solutions and cloud…” Source: RevenueBase Database · checked Sep 28, 2026
2	NTT Ltd. Collaboration & CX	Indirect evidence	London, United KingdomHQ checked Sep 28, 2026	10001+	120 contacts →
	Indirect evidence “The Collaboration and CX solutions offered by NTT Ltd.” Source: RevenueBase Database · checked Sep 28, 2026
3	ICE Telecommunications Limited	Partial evidence	Crewe, United KingdomHQ checked Sep 28, 2026	51-200	89 contacts →
	Partial evidence “Ice Comms are an independent consultant which specialise in mobile, traditional landline, hosted, and broadband business telecommunication solutions.” Source: RevenueBase Database · checked Sep 28, 2026
4	Telappliant	Indirect evidence	London, United KingdomHQ checked Sep 28, 2026	51-200	67 contacts →
	Indirect evidence “Telappliant is an award-winning VoIP and cloud communications provider.” Source: RevenueBase Database · checked Sep 28, 2026
5	Britannic	Indirect evidence	Guildford, United KingdomHQ checked Sep 28, 2026	51-200	65 contacts →
	Indirect evidence “A leading Systems Integrator and Technology Innovator trusted by world class brands for over 40 years, Britannic designs, develops and delivers business communications, sovereign…” Source: RevenueBase Database · checked Sep 28, 2026
6	Cellular Solutions	Indirect evidence	Sunderland, United KingdomHQ checked Sep 28, 2026	n/a	56 contacts →
	Indirect evidence “Established in 1995, Cellular Solutions NE, now part of Communications Plus, is a trusted business telecoms provider supporting organisations across the North East and throughout…” Source: RevenueBase Database · checked Sep 28, 2026
7	Symity	Indirect evidence	London, United KingdomHQ checked Sep 28, 2026	51-200	46 contacts →
	Indirect evidence “The Symity team are a group of passionate Microsoft Teams advocates who are dedicated to changing the way people work.” Source: RevenueBase Database · checked Sep 28, 2026
8	Amillan Limited	Indirect evidence	Solihull, United KingdomHQ checked Sep 28, 2026	51-200	42 contacts →
	Indirect evidence “Amillan is a communications integrator that delivers solutions to make your organisation perform better.” Source: RevenueBase Database · checked Sep 28, 2026
9	SVL	Indirect evidence	East Kilbride, United KingdomHQ checked Sep 28, 2026	11-50	36 contacts →
	Indirect evidence “As the UK and Ireland’s longest serving trusted advisor to the Contact Centre industry, SVL has grown to become a leading provider of unified cloud communications and telephony…” Source: RevenueBase Database · checked Sep 28, 2026
10	Mainstream Digital	Indirect evidence	Cirencester, United KingdomHQ checked Sep 28, 2026	11-50	24 contacts →
	Indirect evidence “Mainstream Digital – Communications Solutions for Business Mainstream Digital is a Business Communications solutions provider with over 20 years of telecommunications experience.” Source: RevenueBase Database · checked Sep 28, 2026
11	Pinevox	Indirect evidence	Harrow, United KingdomHQ checked Sep 28, 2026	11-50	24 contacts →
	Indirect evidence “With a legacy rooted in two decades of telecom consulting and services expertise, PineVox emerges as a visionary leader in the industry.” Source: RevenueBase Database · checked Sep 28, 2026
12	NET Tech Group LTD	Indirect evidence	Enfield, United KingdomHQ checked Sep 28, 2026	11-50	16 contacts →
	Indirect evidence “LETS TALK COMMUNICATIONS" We have changed our company name from Network Communications Group to Net Tech Group.” Source: RevenueBase Database · checked Sep 28, 2026
13	Elementel LTD	Partial evidence	Romsey, United KingdomHQ checked Sep 28, 2026	11-50	15 contacts →
	Partial evidence “ElemenTel are a leading provider of next generation voice over internet (VoIP) telephony solutions to businesses of all types and sizes.” Source: RevenueBase Database · checked Sep 28, 2026
14	Fortay Connect	Indirect evidence	Manchester, United KingdomHQ checked Sep 28, 2026	11-50	15 contacts →
	Indirect evidence “Transform fragmented communications tech into your revenue engine.” Source: RevenueBase Database · checked Sep 28, 2026
15	Millgate Connect	Indirect evidence	Sheffield, United KingdomHQ checked Sep 28, 2026	11-50	14 contacts →
	Indirect evidence “At Millgate Connect, we help organisations simplify communications and connectivity.” Source: RevenueBase Database · checked Sep 28, 2026
16	Future Voice & Data	Partial evidence	Birmingham, United KingdomHQ checked Sep 28, 2026	11-50	14 contacts →
	Partial evidence “Future Voice focuses on all aspects of both B2B communications.” Source: RevenueBase Database · checked Sep 28, 2026
17	Splicecom LTD	Partial evidence	Chorleywood, United KingdomHQ checked Sep 28, 2026	51-200	13 contacts →
	Partial evidence “British based Splicecom is the Channel focussed Voice Solution provider offering enhanced voice services deployed in the cloud, on–premise or any blend of the two.” Source: RevenueBase Database · checked Sep 28, 2026
18	Symitry LTD	Indirect evidence	Uxbridge, United KingdomHQ checked Sep 28, 2026	11-50	12 contacts →
	Indirect evidence “Symitry Ltd is a service orientated IT solutions provider offering systems integration, mission critical services and world class technology for business customers.” Source: RevenueBase Database · checked Sep 28, 2026
19	Jelly Communications	Indirect evidence	Epsom, United KingdomHQ checked Sep 28, 2026	11-50	12 contacts →
	Indirect evidence “Jelly Communications is a UK independent connectivity solutions provider, based in the South of England.” Source: RevenueBase Database · checked Sep 28, 2026
20	Ihub UK	Indirect evidence	London, United KingdomHQ checked Sep 28, 2026	11-50	12 contacts →
	Indirect evidence “Winning and keeping customers is a challenge for every business.” Source: RevenueBase Database · checked Sep 28, 2026
21	Advanced Group	Indirect evidence	Glasgow City, United KingdomHQ checked Sep 28, 2026	1-10	12 contacts →
	Indirect evidence “With BT switching off all traditional telephone lines and businesses need to transition to a cloud based telecom system.” Source: RevenueBase Database · checked Sep 28, 2026
22	Beckett Voice And Data	Indirect evidence	Aldermaston, United KingdomHQ checked Sep 28, 2026	11-50	11 contacts →
	Indirect evidence “Helping you improve your communications.” Source: RevenueBase Database · checked Sep 28, 2026
23	Blue Portal Group	Indirect evidence	Sheffield, United KingdomHQ checked Sep 28, 2026	11-50	11 contacts →
	Indirect evidence “At Blue Portal, we take the hassle out of business telecoms by offering everything you need under one roof.” Source: RevenueBase Database · checked Sep 28, 2026
24	L A Comms LTD	Partial evidence	Skipton, United KingdomHQ checked Sep 28, 2026	11-50	11 contacts →
	Partial evidence “L A Comms is a solutions specialist in Telephone Systems, I.T, Security, SIP Trunking, voice and data connectivity and other Hosted was solutions.” Source: RevenueBase Database · checked Sep 28, 2026
25	Trinsic	Indirect evidence	Fareham, United KingdomHQ checked Sep 28, 2026	11-50	11 contacts →
	Indirect evidence “Trinsic is a new kind of business communications specialist, built from the ground up to help any company leave behind siloed IT, telephony and mobile comms thinking, and move…” Source: RevenueBase Database · checked Sep 28, 2026

RevenueBase Smart Search

RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: enterprise voice consultants. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.

Strong evidence: The company's own public description of its business names enterprise voice consultants.
Partial evidence: Its own public description names part of enterprise voice consultants, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name enterprise voice consultants. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.

RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.

Showing 25 of 238 enterprise voice consultants based in the United Kingdom

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Enterprise voice consultants based in the United Kingdom at a glance

As of Sep 28, 2026

33.6%Verified-email coverage

7.8Average contacts per company

11-50Median size (employees)

21.8%Largest-city concentration · London

Sep 28, 2026Page data refreshed

Companies by employee count

1-10

112

11-50

51-200

201-500

5,001-10,000

10001+

Email recency for this list is measured worldwide rather than for United Kingdom, so it is reported there. Company counts and contact totals on this page are exact for United Kingdom, over 238 companies.

How this list was built

Company categories are rarely black and white. RevenueBase reads each company's own description of its business to decide whether it belongs among enterprise voice consultants, so some rows will be adjacent to the category rather than pure plays. The description and RevenueBase Smart Search rating on every row are there so you can check each match yourself.

Source: The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase Smart Search, the natural-language company search available to every RevenueBase user.
What qualifies: Companies headquartered in the United Kingdom whose own description of what they do matches “enterprise voice consultants”. Matching reads each company's description, not its industry code or its name.
RevenueBase Smart Search: RevenueBase Smart Search is how this list is assembled and how each row is rated. RevenueBase's data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to a category defined in a user's own words. Each row is rated strong evidence (its own description names enterprise voice consultants), partial evidence (it names part of the category) or indirect evidence (the description shown names none of it and the match rests on the rest of the company's profile). The description supporting each rating is quoted on the row.
What we exclude: Companies whose own description does not clearly place them among enterprise voice consultants, and records with no verified work email. Companies headquartered outside United Kingdom are excluded even when they keep an office there.
Match quality: In blind human judging of this matching method, 86% of matched companies were on target. Expect roughly 1 in 7 rows to be adjacent to the category rather than a pure play. Every row shows the company's own description and its RevenueBase Smart Search rating so you can judge each match yourself. Read the full methodology: how the lists are built, how the judging worked, and what the figure means.
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 listed company carries at least one verified work email, 622 across the full list. 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.
Corrections: Wrong category, wrong headquarters, or a company that has closed? Use “Report an issue” on any row. Reports go to the RevenueBase Data Team and feed back into the company graph.

Enterprise voice consultants by metro

Enterprise voice consultants in London52

Frequently asked

What is RevenueBase Smart Search?

RevenueBase Smart Search is how RevenueBase decides which companies belong on this list and how strongly each one fits. Its data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to the category the list is about. Each row is rated strong evidence when the company's own description names enterprise voice consultants, partial evidence when it names part of the category, and indirect evidence when the description shown names none of it and the match rests on the rest of the company's profile.

How many enterprise voice consultants are there based in the United Kingdom?

RevenueBase identified 238 enterprise voice consultants headquartered in the United Kingdom as of September 2026, matched on each company's own description of what it does rather than its industry code.

What is the largest company on this list?

Avoira, headquartered in Bury, tops this list with the largest team on record.

Which city has the most enterprise voice consultants?

London leads with 52 headquartered companies, followed by Leeds (5) and Sheffield (5).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work the top results, verified emails and direct dials included. Upgrading unlocks all 622 verified decision-maker contacts tracked across these 238 companies.

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 Smart Search, 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.