Company lists · Data refreshed September 2026
Top 25 Enterprise telephony providers based in the Netherlands
RevenueBase identified 183 enterprise telephony providers headquartered in the Netherlands as of September 2026 and tracks 1,168 professional contacts across them, including 611 with verified work emails. Amsterdam is the largest hub.
This list covers enterprise telephony providers headquartered in the Netherlands, 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.
The 25 largest enterprise telephony providers based in the Netherlands
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 178 contacts → | ||||
Indirect evidence “A unified communications company, helping customers work wonders, for their workplaces, their teams and their business.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 2 | 96 contacts → | ||||
Indirect evidence “Voys levert zakelijke telefonie.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 3 | 90 contacts → | ||||
Indirect evidence “Gamma Communications is een toonaangevende aanbieder van communicatie oplossingen voor zakelijke gebruikers.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 4 | 40 contacts → | ||||
Indirect evidence “Met als thuisbasis ons hoofdkantoor in Rotterdam, voorziet Trends ICT Groep bedrijfsleven, overheid en semi-overheid van kwalitatief hoogwaardige diensten en producten op het…” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 5 | 37 contacts → | ||||
Indirect evidence “TSV is al meer dan 20 jaar actief op het gebied van bedrijfscommunicatie en uitgegroeid tot een toonaangevend adviseur en uitvoerder van geïntegreerde ICT-systemen (bijvoorbeeld…” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 6 | 36 contacts → | ||||
Indirect evidence “Telecommunicatie draait vandaag de dag om veel meer dan bellen en gebeld worden.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 7 | 34 contacts → | ||||
Indirect evidence “Altios is een ervaren ICT en Telecom dienstverlener voor de zakelijke markt.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 8 | 24 contacts → | ||||
Indirect evidence “Wij zijn een energiek team gespecialiseerd in zakelijke cloud telefonie.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 9 | 18 contacts → | ||||
Indirect evidence “KeenSystems is al sinds 2004 dé onafhankelijke white-label telecomoperator gespecialiseerd in slimme en flexibele VoIP telefonie oplossingen.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 10 | 18 contacts → | ||||
Indirect evidence “Zakelijke Telefonie en IT dienstverlener.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 11 | 16 contacts → | ||||
Indirect evidence “Do you want to work wherever you are, communicate efficiently and have flexible ways to collaborate with customers and colleagues?” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 12 | 16 contacts → | ||||
Indirect evidence “Flexcom is uw Business Partner op het gebied van zakelijke telefonie en IT.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 13 | 16 contacts → | ||||
Indirect evidence “voizXL is dé IP telecomprovider voor ondernemend Nederland.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 14 | 15 contacts → | ||||
Indirect evidence “Als zakelijke telecom aanbieder bieden wij onze afnemers betrouwbare betaalbare telefonie verbindingen (VoIP telefonie), mobiele telecom, internet of things, internet verbinding…” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 15 | 14 contacts → | ||||
Indirect evidence Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 16 | 14 contacts → | ||||
Partial evidence “We build cloud-telephony and Unified Communication solutions that replace a legacy PBX.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 17 | 13 contacts → | ||||
Indirect evidence “VoipQ is a Dutch VoIP operator and telecom-supplier.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 18 | 12 contacts → | ||||
Indirect evidence “Helder Telecom & ICT is dé zakelijke telecom leverancier van juridisch Nederland en Midden-Brabant.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 19 | 12 contacts → | ||||
Indirect evidence “Dia Telecom is active in cloud-based communication solutions for over 16 years.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 20 | 12 contacts → | ||||
Indirect evidence “provides the high-quality full-service solution for companies in the field of telecom, internet, workplaces and network services.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 21 | 11 contacts → | ||||
Indirect evidence “De ICT totaal oplossing voor het MKB.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 22 | 9 contacts → | ||||
Indirect evidence “Saylus BV helpt organisaties om altijd bereikbaar te blijven.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 23 | 9 contacts → | ||||
Partial evidence “Are you looking for a dynamic and innovate telecom provider within the Netherlands to deliver and manage your VoIP telephony, business internet and network management?” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 24 | 9 contacts → | ||||
Indirect evidence “Nox Telecom levert telecomdiensten aan het MKB vanuit onze locaties in Rotterdam en Beugen(Boxmeer).” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 25 | 8 contacts → | ||||
Indirect evidence “IP Voice Group is dé Nederlandse partner voor cloudtelefonie en slimme bedrijfscommunicatie.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
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 telephony providers. 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 telephony providers.
- Partial evidence
- Its own public description names part of enterprise telephony providers, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name enterprise telephony providers. 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 183 enterprise telephony providers based in the Netherlands
See the full list, filter by size, metro and specialty, and get verified emails and direct dials for all 611 reachable decision-makers.
Free signup · no credit card
Enterprise telephony providers based in the Netherlands at a glance
As of Sep 28, 2026Companies by employee count
Email recency for this list is measured worldwide rather than for Netherlands, so it is reported there. Company counts and contact totals on this page are exact for Netherlands, over 183 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 telephony providers, 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 Netherlands whose own description of what they do matches “enterprise telephony providers”. 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 telephony providers), 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 telephony providers, and records with no verified work email. Companies headquartered outside Netherlands 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, 611 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.
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 telephony providers, 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 telephony providers are there based in the Netherlands?
RevenueBase identified 183 enterprise telephony providers headquartered in the Netherlands 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?
Enreach, headquartered in Almere, tops this list with the largest team on record.
Which city has the most enterprise telephony providers?
Amsterdam leads with 8 headquartered companies, followed by Den Haag (4) and Ae (3).
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 611 verified decision-maker contacts tracked across these 183 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.
Ready to reach these companies? Verified emails and direct dials for all 183 enterprise telephony providers based in the Netherlands. Start with a free account, no credit card.
Download this list →Related lists
Enterprise telephony providers by geography
- Enterprise telephony providers based in Sydney, Australia
- Enterprise telephony providers based in Sao Paulo, Brazil
- Enterprise telephony providers based in Toronto, Canada
- Enterprise telephony providers based in Paris, France
- Enterprise telephony providers based in Singapore, Singapore
- Enterprise telephony providers based in Johannesburg, South Africa
- Enterprise telephony providers based in Madrid, Spain
- Enterprise telephony providers based in London, United Kingdom
- Enterprise telephony providers based in Dallas, United States
- Enterprise telephony providers based in Houston, United States
- Enterprise telephony providers based in New York, United States
- Enterprise telephony providers based in Australia
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.
More company lists
- All company lists
- Lists by location
- Lists A-Z
- New lists
- Enterprise telephony providers based in Sydney, Australia
- Enterprise telephony providers based in Sao Paulo, Brazil
- Enterprise telephony providers based in Toronto, Canada
- Enterprise telephony providers based in Paris, France
- Enterprise telephony providers based in Singapore, Singapore
- Enterprise telephony providers based in Johannesburg, South Africa