Company lists · Data verified August 2026

Top 25 Enterprise voice solutions companies based in Germany

Name: Enterprise voice solutions companies based in Germany
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Verified Aug 28, 2026 164 companies tracked

There are 164 enterprise voice solutions companies headquartered in Germany (RevenueBase, August 2026). RevenueBase tracks 1,288 professional contacts across them, including 434 with verified work emails and 12 with mobile numbers. Berlin is the largest hub.

This list covers enterprise voice solutions companies headquartered in Germany, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Data current as of August 28, 2026.

164Companies

1,288Contacts tracked

434Verified emails

12Mobile numbers

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The 25 largest enterprise voice solutions companies based in Germany

Ranked by team size

Top 25 of 164 enterprise voice solutions companies based in Germany, ranked by team size, largest first. Data verified Aug 28, 2026. Click a count to unlock that company's people.
#	Company	HQ	Employees	Contacts	Verified emails
1	Innovaphone	Langenhagen	51-200	97	64
2	Enreach DE	Bochum	1,001-5,000	76	40
3	C4b COM For Business AG	Germering	51-200	65	12
4	Placetel	Koln	51-200	55	19
5	Byon Gmbh	Frankfurt Am Main	51-200	45	13
6	42com Telecommunication Gmbh	Berlin	11-50	32	16
7	Comdesk	Kolln-Reisiek	11-50	29	9
8	Caseris Gmbh	Stolberg Rhld.	51-200	21	17
9	Firstcom Europe	Goldbach	51-200	21	12
10	OFF Telekommunikation Gmbh	Langenfeld	51-200	21	10
11	Topas Electronic AG	Hannover	11-50	19	7
12	Sit-Solutions	Adelsdorf	11-50	19	4
13	Schollmeier Telekommunikation	Mannheim	11-50	16	1
14	Reventix Gmbh	Berlin	11-50	15	11
15	Coeo Systemhaus Gmbh	Schwaig Bei Nurnberg	11-50	15	8
16	Just Network Services Gmbh	Munchen	11-50	14	4
17	Hecom TK It-Lösungen	Ludwigshafen Am Rhein	11-50	12	1
18	Jtel Gmbh	Ottobrunn	11-50	11	5
19	Telefonbau Schneider Gmbh & Co. KG	Koln	51-200	10	4
20	BTD Service Gmbh	Salzweg	51-200	9	7
21	PMG Pohlmann Media Group AG	Inning Am Ammersee	11-50	9	6
22	Ucware Gmbh	Brunswick	11-50	9	5
23	Telecomunique Gmbh	Unterhaching	11-50	8	5
24	Amatrix IT Services Gmbh	Elmshorn	11-50	8	4
25	Tele AG	Leipzig	11-50	8	3

Showing 25 of 164 enterprise voice solutions companies based in Germany

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Enterprise voice solutions companies based in Germany at a glance

As of Aug 28, 2026

11-50Median size (employees)

BerlinLargest hub · 13 HQs

12Contacts with mobile numbers

0Emails re-verified in last 30 days

Companies by employee count

1-10

11-50

51-200

201-500

501-1,000

1,001-5,000

5,001-10,000

Enterprise voice solutions companies by metro

Metro	Companies
Enterprise voice solutions companies in Berlin	13
Enterprise voice solutions companies in Munchen	9
Enterprise voice solutions companies in Koln	6
Enterprise voice solutions companies in Stuttgart	4
Enterprise voice solutions companies in Nurnberg	3
Enterprise voice solutions companies in Mainz	3
Enterprise voice solutions companies in Braunschweig	2

How this list was built

Source: The RevenueBase company graph: 21.3 million companies and 398.9 million professional contacts resolved from primary sources.
Inclusion: Companies whose own business descriptions match “enterprise voice solutions companies”, with match quality audited by blind human judging, and headquartered in Germany.
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: Contact records re-verify on a rolling cadence; 0 contacts on this list were re-verified in the last 30 days.
Refresh: Lists are refreshed periodically as the underlying company graph is re-verified. Last verified Aug 28, 2026.

Frequently asked

How many enterprise voice solutions companies are there based in Germany?

There are 164 enterprise voice solutions companies headquartered in Germany as of August 2026 (RevenueBase).

What is the largest company on this list?

Innovaphone, headquartered in Langenhagen, tops this list with the largest team on record.

Which city has the most enterprise voice solutions companies?

Berlin leads with 13 headquartered companies, followed by Munchen (9) and Koln (6).

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 434 verified decision-maker contacts tracked across these 164 companies.

How current is this list?

The list is refreshed periodically as the underlying company graph is re-verified. It was last verified on August 28, 2026.

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About this data

RevenueBase is a B2B contact data platform. Its company graph covers 21.3 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, the same data that powers RevenueBase's B2B data products and the free research portal.