MK Netzdienste

What MK Netzdienste does

MK Netzdienste GmbH & Co. KG is a German B2B IT services and telecommunications provider headquartered in Minden, founded in 2002 and operating primarily across Germany under private ownership by Managing Director Marc Keilwerth. The company serves business customers (Geschäftskunden) with an integrated portfolio spanning five core product groups: internet access (MK-InterConnect over ADSL, VDSL, fiber, mobile, point-to-point), IP telephony and cloud PBX (MK-VoiceConnect SIP trunk, MK-VoiceConnect Teams for Microsoft Teams Direct Routing, MK-Hosted3CX), MPLS-based site-to-site VPN (MK-VPNConnect), data center services (MK-Colocation, MK-CloudServer, MK-DedicatedServer), and Customer Solutions add-ons (MK-CloudBackup with Veeam, MK-CloudMailArchiv with MailStore, MK-HotSpot, individual IT services).

The company's technical foundation rests on its own Frankfurt am Main data center (FRA2), built in 2016 and expanded in 2019 and 2025, which is certified under DIN EN 50600 and ISO/IEC 27001 and operates with a planned PUE of 1.15. The facility is connected via an n x 100 GBit/s redundant ring to Digital Realty/InterXion and Equinix and maintains direct peering relationships with DE-CIX, Deutsche Telekom, Google, Amazon, Netflix, and Facebook. MK-VPNConnect uses MPLS within a closed user group isolated from the public internet, eliminating encryption-tunnel overhead, and MK-Hosted3CX runs 3CX software in-house with Titanium-level partner engineering support and 3CX AI edition capabilities (KI agents, call summarization, sentiment analysis) backed by OpenAI or Google AI.

Revenue is generated predominantly through recurring monthly subscriptions (internet bandwidth, SIP/PBX seats, VPN site connections, colocation racks, cloud server flatrates) supplemented by usage-based billing on backup storage and email archiving and project-based managed services contracts. Pricing is largely quote-based, with disclosed tiers for cloud server sizes (VM1-VM6), Teams voice rates, and colocation electricity (€0.36/kWh net from Feb 2026). The company employs more than 65 people across Minden and Frankfurt and reaches customers through a sales-led GTM with website, blog, YouTube tutorials, published case studies (WAGO, DRK Region Hannover, editho AG, Bilster Berg, Stadt Minden, Gebr. Koch), and partner/reseller channels.

Name

MK Netzdienste

Legal name

MK Netzdienste GmbH & Co. KG

Website

https://mk.de

Company type

Private

Founded year

2002

Operating status

Operating

Headcount range

11–50 employees

Short description

MK Netzdienste is a German B2B IT services and telecommunications provider serving business customers across Germany with internet, SIP/cloud PBX telephony, MPLS VPN, colocation, cloud servers, and managed IT, anchored by its own Frankfurt data center.

Ownership category

akta.pro rank

Product category

Managed Business IT and Telecommunications Services

NAICS

Wired and Wireless Telecommunications (except Satellite) (5171), Wired and Wireless Telecommunications Carriers (except Satellite) (51711), Computer Systems Design and Related Services (54151), Computing Infrastructure Providers, Data Processing, Web Hosting, and Related Services (5182)

SIC

Services-Telephone Interconnect Systems (7385), Communications Services, Nec (4899)

akta.pro primary industry

Cloud PBX & Hosted Telephony (HDAIAHAB)

akta.pro secondary industries

Carrier-Neutral Interconnect & Meet-Me Room (MMR) Services (HDABALAD), Cloud-Native Enablement (Containers, Kubernetes, Service Mesh) (BPAEAKAE)

Keywords

• Business internet services
• Managed VPN connectivity
• Cloud telephony services
• Data center colocation
• Managed IT outsourcing

Headquarters

HQ city

Minden

HQ country

Germany

HQ region

Europe

Offices2 records

Markets served

GTM type

B2B

Offering type

Services

Cost components

Personnel, Infrastructure, Operations, Technology or R&D, Marketing or Sales, Supply Chain

Revenue model

1. Internet Connectivity Services (MK-InterConnect): Monthly recurring subscriptions for business internet connections across ADSL, VDSL, fiber, mobile, and point-to-point technologies. Includes IP telephony channels, fixed IP addresses, and optional business packages. Offered as subscription with monthly/annual billing.
2. Cloud Telephony & SIP Trunk (MK-VoiceConnect, MK-Hosted3CX): Recurring subscription for IP telephony including SIP trunks (MK-VoiceConnect) and fully hosted cloud PBX (MK-Hosted3CX). Licenses based on concurrent calls. MK-VoiceConnect Complete offers up to 30 simultaneous voice channels. 3CX PRO and AI tiers with per-user/per-concurrent-call licensing.
3. VPN Connectivity (MK-VPNConnect): Monthly recurring subscriptions for MPLS-based VPN site connectivity. Standortvernetzung (site networking) with dedicated bandwidth per site. Sold as individual contracts per VPN connection.
4. Cloud Servers (MK-CloudServer): Monthly rental (all-inclusive flat rate) for cloud servers with configurable vCPU, RAM, and SSD storage. Billing per server model on a monthly flat rate covering all operational costs.
5. Colocation (MK-Colocation): Monthly rental for 19-inch racks, half racks, or individual height units in the Frankfurt data center. Includes remote hands service, 24x7 hotline, redundant connectivity, and optional bandwidth upgrades.
6. Cloud Backup (MK-CloudBackup with Veeam): Monthly billing based on dynamic storage usage in 100 GB steps. Private cloud backup with immutable backups, ransomware protection, and optional local backup server integration.
7. Email Archiving (MK-CloudMailArchiv): Dynamic pay-per-use billing based on number of user licenses (each with fixed storage quota) and total storage consumed. For every user license, a fixed storage quota is provided, summed across all licenses for the total archive.
8. IT Outsourcing & Professional Services (Customer Solutions): Customized IT services including consulting, system monitoring, maintenance, project implementation, IT security audits, and managed services. Typically contracted as monthly service retainer (time-unit packages) or project-based engagements.

Pricing tiers

Go-to-market motion1 record

Distribution channels4 records

Marketing channels5 records

Core offering

MK Netzdienste is a German B2B IT and telecommunications provider that sells business internet access, IP telephony and cloud PBX, MPLS-based VPN site connectivity, data center colocation, cloud and dedicated servers, and managed IT services (cloud backup, compliant email archiving, public WiFi, IT outsourcing). All products are hosted and operated in the company's own DIN EN 50600 and ISO/IEC 27001 certified Frankfurt (FRA2) data center and delivered with German data residency under a single point of contact for business customers throughout Germany.

Product overview

MK Netzdienste is a German IT services company offering an integrated portfolio of business telecommunications and data center solutions. The product portfolio centers on five core areas: (1) Internet access via MK-InterConnect with ADSL/VDSL/fiber/mobile technologies; (2) Voice services via MK-VoiceConnect (SIP trunk) and MK-VoiceConnect Teams (Microsoft Teams Direct Routing); (3) VPN site connectivity via MK-VPNConnect using MPLS-based closed network architecture; (4) Data center services including MK-Colocation (physical rack space), MK-CloudServer (virtual servers), and MK-DedicatedServer (dedicated hardware); and (5) Cloud communications via MK-Hosted3CX (3CX-based cloud PBX). These are supplemented by add-on services including MK-CloudBackup with Veeam, MK-CloudMailArchiv with MailStore, MK-HotSpot, and individual IT professional services. The company operates its own DIN EN 50600 and ISO/IEC 27001 certified data center in Frankfurt with direct peering to Deutsche Telekom, DE-CIX, and major cloud providers.

Differentiator

Problem solved

Functional benefit

Products and services

• MK-InterConnect Professional business internet access service delivered over ADSL, VDSL, fiber optic, mobile and point-to-point technologies with bandwidths from 16 Mbps ADSL up to 10 Gbps fiber, bundled with IP telephony channels and optional business packages including routers and web/email hosting, for German business customers requiring reliable high-availability connectivity.
• MK-HotSpot Plug-and-play public WiFi hotspot solution available as MK-HotSpot Connect (gateway for existing WiFi infrastructure) or MK-HotSpot Complete (full indoor/outdoor hotspot hardware), isolating customer traffic from the business network and removing operator liability risk (Störerhaftung) without password or registration requirements, for venues, municipalities and businesses offering guest WiFi.
• MK-VoiceConnect Voice-over-IP SIP trunk service for business customers offering 4, 12 or 30 simultaneous voice channels, per-second billing and optional flat rates, certified for compatibility with over 20 major PBX systems including 3CX, Asterisk, Avaya IP Office, Cisco UCM, FreePBX, innovaphone, Mitel, Siemens/Unify OpenScape and others.
• MK-VoiceConnect Teams Microsoft-certified SIP trunk for Microsoft Teams Direct Routing, providing 10 parallel voice channels, encrypted signaling and media, worldwide landline-number reachability and optional flat rates to German fixed and mobile networks, for organizations using Teams as their primary telephony platform.
• MK-Hosted3CX Cloud-hosted 3CX IP telephone system operated in MK Netzdienste's Frankfurt data center, combining SIP trunk, IP phones and a full-featured PBX with PRO and AI editions, video conferencing for up to 100/250 participants, mobile working apps, CRM and Microsoft 365/Google Workspace integration, and AI-powered call management features including AI agents, transcription and summarization.
• MK-VPNConnect MPLS-based VPN service for secure site-to-site connectivity within a closed user group isolated from the public internet, supporting remote user access, mobile connections and cross-border sites with no bandwidth loss from encryption, for multi-site business customers needing private networking.
• MK-Colocation

Quantifiable outcome

• Up to 30% more bandwidth available compared to conventional VPN solutions due to absence of tunnel and encryption overhead in MPLS-based VPN
• +4 more outcomes

Named customers7 records

Segments1 record

Ideal customer profiles3 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Integration22 records

AI capability8 records

Feature8 records

Partnerships

Ten partnerships are on record, tiered core.

• 3CXcoreTechnology or IntegrationMK Netzdienste is a 3CX Titanium Partner (the highest partner level) with in-house 3CX Certified Engineers (Basic and Advanced). The partnership covers the hosting, implementation, and support of 3CX IP telephony software as MK-Hosted3CX cloud PBX. MK Netzdienste operates 3CX systems in its Frankfurt data center and provides ongoing maintenance, security updates, and daily backups.
• YealinkcoreTechnology or IntegrationMK Netzdienste holds Yealink Certified IP Phone & Sales Engineer status, providing comprehensive expertise in the professional planning, integration, and optimization of Yealink IP telephony solutions for customers.
• Cisco SystemscoreTechnology or IntegrationMK Netzdienste employs staff with Cisco CCNA and CCIE certifications, confirming solid knowledge in network fundamentals, routing, switching, IP services, and security concepts. Cisco technologies are used in network infrastructure deployments.
• MailStorecoreTechnology or IntegrationMK Netzdienste partnered with MailStore as technology partner and software supplier for the MK-CloudMailArchiv product. MailStore is a leading email archiving software provider with over 100,000 enterprise customers in 100+ countries. The partnership enables legally compliant email archiving certified under GoBD, DSGVO, and IDW PS 880.
• VeeamcoreTechnology or IntegrationMK Netzdienste partnered with Veeam as technology partner and software supplier for the MK-CloudBackup product. Veeam is a specialist in data backup software with over 10 years of market leadership. Features include compression, deduplication, immutable backups (14-day retention), and ransomware protection in a private cloud environment.
• DE-CIXcoreTechnology or IntegrationMK Netzdienste has direct peering with DE-CIX (the world's largest internet exchange by throughput) in Frankfurt. The Frankfurt data center (FRA2) is connected via an n x 100 GBit/s ring to InterXion/Digital Realty and Equinix, enabling access to DE-CIX and other major internet exchanges.
• Deutsche TelekomcoreTechnology or IntegrationMK Netzdienste maintains direct peering with the Deutsche Telekom network, enabling fast and direct data exchange between MK's network and the Telekom network without detours via DE-CIX or transit connections.
• Digital Realty / InterXioncoreTechnology or IntegrationMK Netzdienste's Frankfurt data center is connected via an n x 100 GBit/s redundant ring to Digital Realty/InterXion data centers. Optional colocation interconnect bandwidth is available for customers between MK racks and Digital Realty/Equinix data centers.
• EquinixcoreTechnology or IntegrationMK Netzdienste's Frankfurt data center is connected via an n x 100 GBit/s redundant ring to Equinix data centers. Optional colocation interconnect bandwidth is available for customers between MK racks and Equinix data centers.
• Google, Amazon, Netflix, Facebook (Peering Partners)coreTechnology or IntegrationMK Netzdienste maintains direct peering connections to Google, Amazon, Microsoft, Netflix, Facebook, and many other content and cloud providers, ensuring optimal routing and low-latency connectivity for customers.

Scale indicators7 records

Recent moves11 records

Expansion highlights6 records

Direct peers

• 1&1 Versatel: Major German B2B telecom and fiber network operator offering dedicated internet, MPLS VPN, SIP trunks, cloud PBX, and data center services to enterprise and SME customers. Closest large-scale direct competitor to MK Netzdienste's integrated connectivity-plus-UCaaS-plus-colocation play.
• ecotel communication ag: German B2B telecommunications provider focused on SME and mid-market customers with a portfolio spanning broadband, SIP trunks, VPN, cloud telephony, and data center services. Highly comparable business model and customer base to MK Netzdienste.
• envia TEL GmbH: German B2B telecom and data center operator with own fiber network and DC facilities, serving business customers with internet, VPN, SIP, and colocation — a comparable regional integrated provider.
• Plusnet (United Internet): Business-focused German ISP within the United Internet group providing broadband, VPN, SIP, and cloud services to SME customers. Direct competitor on the connectivity and telephony layer, with deeper group-level scale.
• Hetzner Online GmbH: German hosting and data center operator offering dedicated servers, cloud servers, colocation, and managed services from multiple German and European sites. Direct overlap on the colocation, cloud server, and data center product lines.
• QSC AG: German provider of cloud, UC, and managed services to mid-market and enterprise customers, including SIP trunks, cloud PBX, and data center offerings. Historically one of the closest mid-market competitors in the German Cloud PBX/UC market.

Regional players

• NetCologne Gesellschaft: Regional German telecom serving the Cologne/Rhineland area with fiber internet, telephony, VPN, and data center services to business customers. Similar integrated portfolio but geographically limited compared to MK's national German footprint.
• M-net Telekommunikations GmbH: Bavaria-focused German regional carrier offering business internet, VPN, SIP, and cloud services. Comparable integrated portfolio to MK Netzdienste but concentrated in southern Germany.

Broad incumbents

• IONOS SE (United Internet): Large European cloud, hosting, and connectivity provider (part of United Internet) with data center presence in Germany. Competes with MK on cloud servers, hosting, and increasingly on connectivity, but operates a much broader consumer and SMB portfolio.
• Deutsche Telekom / T-Systems: Germany's incumbent telecom operator with the largest fiber network, broad enterprise cloud, UC, and data center portfolio. Competes with MK on essentially every product line, but at vastly greater scale and with a national brand.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat6 records

Key risks7 records

Key highlights7 records

Customer concentration

• YouTubeyoutube.com/channel/UCXqhchAEXyR5IgcJjdMg8TEOGKpFX0Vgq

Compliance11 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles1 record

Subsidiaries1 record

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about MK Netzdienste