Company lists · Data refreshed November 2026
Top 21 Ciso services based in Germany
RevenueBase identified 2,387 company matches for ciso services associated with Germany as of November 2026 and tracks 23,814 professional contacts across them, including 10,049 with verified work emails. Berlin is the largest hub.
This list covers company matches for ciso services associated with Germany, 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 November 6, 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 21 largest ciso services based in Germany
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 680 contacts → | ||||
Exact match “secunet – We are the Guardians of Europe's Digital Freedom.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 2 | 466 contacts → | ||||
Exact match “In today’s fast-moving business environment, companies often grow faster than their IT.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 3 | 404 contacts → | ||||
Exact match “Die Ratiodata ist seit über 50 Jahren ein mehrfach ausgezeichneter IT-Dienstleister und Managed Service Provider.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 4 | 392 contacts → | ||||
Exact match “Progress is our motivation because we are convinced that it will lead us to a successful future – independent of industries, companies and social classes.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 5 | 379 contacts → | ||||
Exact match “Wir glauben an eine sichere digitale Zukunft mit minimalen Risiken und maximalen Chancen.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 6 | 234 contacts → | ||||
Exact match “DTS Systeme steht als erfolgreicher IT-Dienstleister seit über 40 Jahren deutschland- und europaweit für Innovation, Kompetenz sowie Leidenschaft.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 7 | 228 contacts → | ||||
Exact match “Who we are: We are IT and IT's for you.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 8 | 227 contacts → | ||||
Exact match “Als zuverlässiger Partner mit einer breiten Technik-Expertise in den Leistungsfeldern IT Solutions, Unified Communication & Collaboration Solutions und Security Technology…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 9 | 200 contacts → | ||||
Exact match “NetPlans ist ein global agierender Managed Service Provider mit über 400 IT Experten, der sich auf innovative Cloud-Lösungen samt eigener Business Cloud in Deutschland…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 10 | 196 contacts → | ||||
Exact match “Since Mahr EDV has been synonymous with reliable IT support, excellent service, and the highest customer satisfaction.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 11 | 188 contacts → | ||||
Exact match “Wir, die AU, gehören zu den führenden IT-Systemhäusern im hochsensiblen Umfeld der Datensicherheit und Hochverfügbarkeit.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 12 | 186 contacts → | ||||
Exact match “Bei Insyte Deutschland arbeiten wir daran, unseren Kunden qualitativ hochwertige Dienstleistungen im Bereich der Installation, des Betriebs und der Wartung von Netzwerken und…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 13 | 170 contacts → | ||||
Exact match “IT IST ALLES.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 14 | 149 contacts → | ||||
Exact match “ITENOS, headquartered in Bonn, Germany, is an experienced specialist for secure IT and telecommunications solutions.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 15 | 142 contacts → | ||||
Exact match “Die dacoso GmbH ist ein spezialisierter Anbieter von herstellerunabhängigen Connectivity und Security Lösungen im Data Center und Carrier Segment.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 16 | 135 contacts → | ||||
Exact match “The Data Center Group combines the full competence for implementing high available, secure and cost-effective IT infrastructures under one roof.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 17 | 134 contacts → | ||||
Exact match “Die usd AG schützt Unternehmen vor Hackern und Kriminellen.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 18 | 133 contacts → | ||||
Exact match “Das in Oberhaching bei München ansässige Unternehmen wurde im Jahr 2002 gegründet.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 19 | 129 contacts → | ||||
Exact match “Die ECKD GmbH steht mit viel Erfahrung für die sichere und zuverlässige Bereitstellung von IT-Lösungen sowie für maßgeschneiderte Dienstleistungen für den kirchlichen Markt.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 20 | 127 contacts → | ||||
Exact match “SHD hat sich in den letzten 35 Jahren zu einem der marktführenden Unternehmen im Bereich der Projektierung, Realisierung und Betreuung von komplexen IT-Lösungen entwickelt.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 21 | 120 contacts → | ||||
Exact match “group24 ist Dein 360° IT-Dienstleister – von IT-Consulting über Security und Development bis hin zu Managed Services, Business Consulting und IT-Procurement.” Recorded in the RevenueBase company graph · Nov 6, 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 “ciso 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 21 of 2,387 ciso services based in Germany
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Ciso services based in Germany at a glance
As of Nov 6, 2026Companies by employee count
Email recency for this list is measured worldwide rather than for Germany, so it is reported there. Company counts and contact totals on this page are exact for Germany, over 2,387 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 Germany whose business descriptions match “ciso 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 10,049 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 November 6, 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 “ciso services”; each Exact match badge shows search membership, not an individual similarity or quality score.
How many ciso services are there based in Germany?
RevenueBase identified 2,387 company matches for ciso services associated with Germany as of November 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?
Secunet Security Networks AG tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.
Which city has the most ciso services?
Berlin leads with 156 company records, followed by Munich (118) and Hamburg (89).
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 10,049 professional contacts with verified work emails tracked across these 2,387 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 November 6, 2026.
Ready to reach these companies? Verified emails and direct dials for all 2,387 ciso services based in Germany. Start with a free account, no credit card.
Download this list →Related lists
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- Ciso services based in Spain
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Browse the directory
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
Company intelligence · public preview
Top 21 ciso services based in Germany
Find companies in any niche.
Describe the businesses you want in your own words. RevenueBase SmartSearch matches company descriptions by meaning.
RevenueBase records 2,387 matching company records for ciso services based in Germany, with 23,814 tracked contacts and 10,049 verified work emails.
This public preview shows 21 selected records ordered by tracked contacts. RevenueBase SmartSearch finds company descriptions that match by meaning at Exact. Snapshot: November 6, 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 21 ciso services based in Germany
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 |  Secunet Security Networks AGsecunet.comHQ: Essen, GermanyReported employees: 1,001-5,000 | Essen, Germany | 1,001-5,000 | Exact match | 680 contacts → |
“secunet – We are the Guardians of Europe's Digital Freedom.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 |  Manage NOWmanage-now.deHQ: Munich, GermanyReported employees: 1,001-5,000 | Munich, Germany | 1,001-5,000 | Exact match | 466 contacts → |
“In today’s fast-moving business environment, companies often grow faster than their IT.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 |  Ratiodataratiodata.deHQ: Münster, GermanyReported employees: 1,001-5,000 | Münster, Germany | 1,001-5,000 | Exact match | 404 contacts → |
“Die Ratiodata ist seit über 50 Jahren ein mehrfach ausgezeichneter IT-Dienstleister und Managed Service Provider.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 |  G Data Cyberdefensegdata.deHQ: Bochum, GermanyReported employees: 501-1,000 | Bochum, Germany | 501-1,000 | Exact match | 392 contacts → |
“Progress is our motivation because we are convinced that it will lead us to a successful future – independent of industries, companies and social classes.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 |  T Security - Dachsecurity.telekom.deHQ: Bonn, GermanyReported employees: 1,001-5,000 | Bonn, Germany | 1,001-5,000 | Exact match | 379 contacts → |
“Wir glauben an eine sichere digitale Zukunft mit minimalen Risiken und maximalen Chancen.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 |  DTS Systeme Gmbhdts.deHQ: Herford, GermanyReported employees: 201-500 | Herford, Germany | 201-500 | Exact match | 234 contacts → |
“DTS Systeme steht als erfolgreicher IT-Dienstleister seit über 40 Jahren deutschland- und europaweit für Innovation, Kompetenz sowie Leidenschaft.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 |  Sievers-Groupsievers-group.comHQ: Osnabrück, GermanyReported employees: 201-500 | Osnabrück, Germany | 201-500 | Exact match | 228 contacts → |
“Who we are: We are IT and IT's for you.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 | HQ: Hanover, GermanyReported employees: 1,001-5,000 | Hanover, Germany | 1,001-5,000 | Exact match | 227 contacts → |
“Als zuverlässiger Partner mit einer breiten Technik-Expertise in den Leistungsfeldern IT Solutions, Unified Communication & Collaboration Solutions und Security Technology…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 |  Netplans Cloud Solutionsnetplans.deHQ: Ettlingen, GermanyReported employees: 201-500 | Ettlingen, Germany | 201-500 | Exact match | 200 contacts → |
“NetPlans ist ein global agierender Managed Service Provider mit über 400 IT Experten, der sich auf innovative Cloud-Lösungen samt eigener Business Cloud in Deutschland…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 |  Mahr EDV Gmbhmahr-edv.deHQ: Berlin, GermanyReported employees: 201-500 | Berlin, Germany | 201-500 | Exact match | 196 contacts → |
“Since Mahr EDV has been synonymous with reliable IT support, excellent service, and the highest customer satisfaction.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 | HQ: Metzingen, GermanyReported employees: 201-500 | Metzingen, Germany | 201-500 | Exact match | 188 contacts → |
“Wir, die AU, gehören zu den führenden IT-Systemhäusern im hochsensiblen Umfeld der Datensicherheit und Hochverfügbarkeit.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 |  Insyte Deutschland Gmbhinsytedeutschland.deHQ: Ratingen, GermanyReported employees: 201-500 | Ratingen, Germany | 201-500 | Exact match | 186 contacts → |
“Bei Insyte Deutschland arbeiten wir daran, unseren Kunden qualitativ hochwertige Dienstleistungen im Bereich der Installation, des Betriebs und der Wartung von Netzwerken und…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 |  PCO Gmbh & Co. KGpco-online.deHQ: Osnabrück, GermanyReported employees: 201-500 | Osnabrück, Germany | 201-500 | Exact match | 170 contacts → |
“IT IST ALLES.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 |  Itenos Gmbhitenos.deHQ: Bonn, GermanyReported employees: 201-500 | Bonn, Germany | 201-500 | Exact match | 149 contacts → |
“ITENOS, headquartered in Bonn, Germany, is an experienced specialist for secure IT and telecommunications solutions.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 |  Dacoso Gmbhdacoso.comHQ: Langen, GermanyReported employees: 201-500 | Langen, Germany | 201-500 | Exact match | 142 contacts → |
“Die dacoso GmbH ist ein spezialisierter Anbieter von herstellerunabhängigen Connectivity und Security Lösungen im Data Center und Carrier Segment.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 |  Data Center Groupdatacenter-group.comHQ: Wallmenroth, GermanyReported employees: 201-500 | Wallmenroth, Germany | 201-500 | Exact match | 135 contacts → |
“The Data Center Group combines the full competence for implementing high available, secure and cost-effective IT infrastructures under one roof.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 |  USD AGusd.deHQ: Neu-isenburg, GermanyReported employees: 51-200 | Neu-isenburg, Germany | 51-200 | Exact match | 134 contacts → |
“Die usd AG schützt Unternehmen vor Hackern und Kriminellen.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 | Is4it Gmbhis4it.de HQ: Oberhaching, GermanyReported employees: 201-500 | Oberhaching, Germany | 201-500 | Exact match | 133 contacts → |
“Das in Oberhaching bei München ansässige Unternehmen wurde im Jahr 2002 gegründet.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 |  Eckd Gmbheckd.deHQ: Kassel, GermanyReported employees: 201-500 | Kassel, Germany | 201-500 | Exact match | 129 contacts → |
“Die ECKD GmbH steht mit viel Erfahrung für die sichere und zuverlässige Bereitstellung von IT-Lösungen sowie für maßgeschneiderte Dienstleistungen für den kirchlichen Markt.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 |  SHD System-Haus-Dresden Gmbhshd-online.deHQ: Dresden, GermanyReported employees: 51-200 | Dresden, Germany | 51-200 | Exact match | 127 contacts → |
“SHD hat sich in den letzten 35 Jahren zu einem der marktführenden Unternehmen im Bereich der Projektierung, Realisierung und Betreuung von komplexen IT-Lösungen entwickelt.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 |  Group24 AGgroup24.deHQ: Gescher, GermanyReported employees: 201-500 | Gescher, Germany | 201-500 | Exact match | 120 contacts → |
“group24 ist Dein 360° IT-Dienstleister – von IT-Consulting über Security und Development bis hin zu Managed Services, Business Consulting und IT-Procurement.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 21 of 2,387 company matches
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Ciso services: dataset insights
November 6, 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
2,308 records in the displayed employee bands.
79 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 Germany, so it is reported there. Company counts and contact totals on this page are exact for Germany, over 2,387 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: November 6, 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 ciso 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 ciso services did RevenueBase find based in Germany?
The saved snapshot records 2,387 matching company records, 23,814 tracked contacts and 10,049 verified emails. The public preview displays 21 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: November 6, 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
Ciso services by geography
- Ciso services based in the United States
- Ciso services based in the United Kingdom
- Ciso services based in Brazil
- Ciso services based in France
- Ciso services based in Canada
- Ciso services based in Australia
- Ciso services based in Italy
- Ciso services based in Spain
- Ciso services based in the Netherlands
- Ciso services based in Mexico
- Ciso services based in Switzerland
- Ciso services based in South Africa
Browse the directory
Cite this list
RevenueBase Data Team. Top 21 ciso services based in Germany. Snapshot: November 6, 2026. https://revenuebase.ai/companies/ciso-services/germany.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗
More company lists
Company intelligence · public preview
Top 21 ciso services based in Germany
RevenueBase records 2,387 matching company records for ciso services based in Germany, with 23,814 tracked contacts and 10,049 verified work emails.
This public preview shows 21 selected records ordered by tracked contacts. RevenueBase SmartSearch finds company descriptions that match by meaning at Exact. Snapshot: November 6, 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 21 ciso services based in Germany
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 | Secunet Security Networks AGsecunet.com HQ: Essen, GermanyReported employees: 1,001-5,000 | Essen, Germany | 1,001-5,000 | Exact match | 680 contacts → |
“secunet – We are the Guardians of Europe's Digital Freedom.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 | Manage NOWmanage-now.de HQ: Munich, GermanyReported employees: 1,001-5,000 | Munich, Germany | 1,001-5,000 | Exact match | 466 contacts → |
“In today’s fast-moving business environment, companies often grow faster than their IT.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 | Ratiodataratiodata.de HQ: Münster, GermanyReported employees: 1,001-5,000 | Münster, Germany | 1,001-5,000 | Exact match | 404 contacts → |
“Die Ratiodata ist seit über 50 Jahren ein mehrfach ausgezeichneter IT-Dienstleister und Managed Service Provider.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 | G Data Cyberdefensegdata.de HQ: Bochum, GermanyReported employees: 501-1,000 | Bochum, Germany | 501-1,000 | Exact match | 392 contacts → |
“Progress is our motivation because we are convinced that it will lead us to a successful future – independent of industries, companies and social classes.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 | T Security - Dachsecurity.telekom.de HQ: Bonn, GermanyReported employees: 1,001-5,000 | Bonn, Germany | 1,001-5,000 | Exact match | 379 contacts → |
“Wir glauben an eine sichere digitale Zukunft mit minimalen Risiken und maximalen Chancen.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 | DTS Systeme Gmbhdts.de HQ: Herford, GermanyReported employees: 201-500 | Herford, Germany | 201-500 | Exact match | 234 contacts → |
“DTS Systeme steht als erfolgreicher IT-Dienstleister seit über 40 Jahren deutschland- und europaweit für Innovation, Kompetenz sowie Leidenschaft.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 | Sievers-Groupsievers-group.com HQ: Osnabrück, GermanyReported employees: 201-500 | Osnabrück, Germany | 201-500 | Exact match | 228 contacts → |
“Who we are: We are IT and IT's for you.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 | HQ: Hanover, GermanyReported employees: 1,001-5,000 | Hanover, Germany | 1,001-5,000 | Exact match | 227 contacts → |
“Als zuverlässiger Partner mit einer breiten Technik-Expertise in den Leistungsfeldern IT Solutions, Unified Communication & Collaboration Solutions und Security Technology…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 | Netplans Cloud Solutionsnetplans.de HQ: Ettlingen, GermanyReported employees: 201-500 | Ettlingen, Germany | 201-500 | Exact match | 200 contacts → |
“NetPlans ist ein global agierender Managed Service Provider mit über 400 IT Experten, der sich auf innovative Cloud-Lösungen samt eigener Business Cloud in Deutschland…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 | Mahr EDV Gmbhmahr-edv.de HQ: Berlin, GermanyReported employees: 201-500 | Berlin, Germany | 201-500 | Exact match | 196 contacts → |
“Since Mahr EDV has been synonymous with reliable IT support, excellent service, and the highest customer satisfaction.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 | HQ: Metzingen, GermanyReported employees: 201-500 | Metzingen, Germany | 201-500 | Exact match | 188 contacts → |
“Wir, die AU, gehören zu den führenden IT-Systemhäusern im hochsensiblen Umfeld der Datensicherheit und Hochverfügbarkeit.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 | Insyte Deutschland Gmbhinsytedeutschland.de HQ: Ratingen, GermanyReported employees: 201-500 | Ratingen, Germany | 201-500 | Exact match | 186 contacts → |
“Bei Insyte Deutschland arbeiten wir daran, unseren Kunden qualitativ hochwertige Dienstleistungen im Bereich der Installation, des Betriebs und der Wartung von Netzwerken und…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 | PCO Gmbh & Co. KGpco-online.de HQ: Osnabrück, GermanyReported employees: 201-500 | Osnabrück, Germany | 201-500 | Exact match | 170 contacts → |
“IT IST ALLES.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 | Itenos Gmbhitenos.de HQ: Bonn, GermanyReported employees: 201-500 | Bonn, Germany | 201-500 | Exact match | 149 contacts → |
“ITENOS, headquartered in Bonn, Germany, is an experienced specialist for secure IT and telecommunications solutions.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 | Dacoso Gmbhdacoso.com HQ: Langen, GermanyReported employees: 201-500 | Langen, Germany | 201-500 | Exact match | 142 contacts → |
“Die dacoso GmbH ist ein spezialisierter Anbieter von herstellerunabhängigen Connectivity und Security Lösungen im Data Center und Carrier Segment.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 | Data Center Groupdatacenter-group.com HQ: Wallmenroth, GermanyReported employees: 201-500 | Wallmenroth, Germany | 201-500 | Exact match | 135 contacts → |
“The Data Center Group combines the full competence for implementing high available, secure and cost-effective IT infrastructures under one roof.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | USD AGusd.de HQ: Neu-isenburg, GermanyReported employees: 51-200 | Neu-isenburg, Germany | 51-200 | Exact match | 134 contacts → |
“Die usd AG schützt Unternehmen vor Hackern und Kriminellen.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 | Is4it Gmbhis4it.de HQ: Oberhaching, GermanyReported employees: 201-500 | Oberhaching, Germany | 201-500 | Exact match | 133 contacts → |
“Das in Oberhaching bei München ansässige Unternehmen wurde im Jahr 2002 gegründet.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 | Eckd Gmbheckd.de HQ: Kassel, GermanyReported employees: 201-500 | Kassel, Germany | 201-500 | Exact match | 129 contacts → |
“Die ECKD GmbH steht mit viel Erfahrung für die sichere und zuverlässige Bereitstellung von IT-Lösungen sowie für maßgeschneiderte Dienstleistungen für den kirchlichen Markt.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 | SHD System-Haus-Dresden Gmbhshd-online.de HQ: Dresden, GermanyReported employees: 51-200 | Dresden, Germany | 51-200 | Exact match | 127 contacts → |
“SHD hat sich in den letzten 35 Jahren zu einem der marktführenden Unternehmen im Bereich der Projektierung, Realisierung und Betreuung von komplexen IT-Lösungen entwickelt.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 | Group24 AGgroup24.de HQ: Gescher, GermanyReported employees: 201-500 | Gescher, Germany | 201-500 | Exact match | 120 contacts → |
“group24 ist Dein 360° IT-Dienstleister – von IT-Consulting über Security und Development bis hin zu Managed Services, Business Consulting und IT-Procurement.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 21 of 2,387 company matches
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Ciso services: dataset insights
November 6, 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
2,308 records in the displayed employee bands.
79 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 Germany, so it is reported there. Company counts and contact totals on this page are exact for Germany, over 2,387 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: November 6, 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 ciso 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 ciso services did RevenueBase find based in Germany?
The saved snapshot records 2,387 matching company records, 23,814 tracked contacts and 10,049 verified emails. The public preview displays 21 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: November 6, 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.
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Cite this list
RevenueBase Data Team. Top 21 ciso services based in Germany. Snapshot: November 6, 2026. https://revenuebase.ai/companies/ciso-services/germany.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗