Rockenstein

What Rockenstein does

Rockenstein AG is a privately held German IT infrastructure provider founded in 1987 (formally incorporated in 1992; converted from Rockenstein-Online GmbH to rockenstein AG in 1999) and headquartered in Veitshöchheim near Würzburg. Family-owned and led by founder/CEO Christoph Rockenstein with Rainer Rockenstein as Chairman of the Supervisory Board, the company operates four business lines out of a single integrated facility: data centers and colocation, global networks, cloud-as-a-service (VCloud), and IT management. All data centers are located in Germany, with TÜV NORD CERT Dual Site Level 4 and TÜViT TSI Level 3 (extended) certifications placing the company among a small set of operators holding the highest available German data-center security certifications, alongside ISO/IEC 27001:2022 and 100% TÜV-certified eco-electricity (in use since 2017). The customer base is anchored in German enterprise and mid-market businesses, with startups and self-employed users served through a co-working product and emergency-workplace (Notfallarbeitsplätze) offerings.

The technology stack centers on certified in-house data centers, a proprietary VCloud platform with public/private/hybrid options and SSD network storage, and a portfolio of connectivity products including Business Link Premium (symmetric bandwidths up to 40 Gbit/s), fibreConnect FTTB (up to 10 Gbit/s), RDSL business-class DSL, SDSL, IP-Telefonie/VoIP, and SIP Trunking. Supporting infrastructure includes DE-CIX direct peering (since 2012), RIPE NCC membership (since 1998), and DENIC membership (since 2000) for near-immediate .de domain registration. From 2025–2026, Rockenstein has expanded into AI infrastructure with the joint 'Franconia.ai' initiative, offering AI models hosted inside its certified German data centers under a German legal framework, supported by AI masterclasses with RAUSCH Technology and Dr. Tristan Behrens under the AI Week Mainfranken umbrella.

The business operates a quote-based, custom-pricing model with monthly billing, generating revenue across six streams: managed data center/colocation services, subscription-based global network services, recurring cloud (VCloud) subscriptions, managed IT services (XaaS, server management, web development), recurring co-working subscriptions, and recurring domain/email/SSL registration. Distribution combines direct enterprise sales (dedicated sales + consulting + technical support lines) with a channel/reseller program, a self-service customer portal (service.rockenstein.de), and a STATUS page for infrastructure notifications. Geographic reach is exclusively domestic (Germany), with strong regional density in Mainfranken and a 50+ employee headcount as of 2022.

Name

Rockenstein

Legal name

rockenstein AG

Website

https://rockenstein.de

Company type

Private

Founded year

1992

Operating status

Operating

Headcount range

51–100 employees

Short description

Rockenstein AG is a German IT infrastructure provider that operates TÜV NORD CERT Dual Site Level 4 certified data centers, serving enterprise and mid-market businesses with colocation, global networking, VCloud, and managed IT services exclusively in Germany.

Ownership category

akta.pro rank

Product category

Managed IT Infrastructure Services

NAICS

Computing Infrastructure Providers, Data Processing, Web Hosting, and Related Services (51821), Computer Systems Design and Related Services (54151), Custom Computer Programming Services (541511)

SIC

Services-Computer Programming, Data Processing, Etc. (7370)

akta.pro primary industry

Telco Cloud & Edge for NaaS (Distributed Cloud, MEC, Edge CNFs) (HDAIAIAE)

akta.pro secondary industry

NaaS Connectivity Services (On-Demand VPN, SD-WAN-as-a-Service, Bandwidth-on-Demand) (HDAIAIAH)

Keywords

• Managed IT services
• Data center colocation
• Cloud infrastructure services
• Business network connectivity
• Business continuity solutions

Headquarters

HQ city

Würzburg

HQ country

Germany

HQ region

Europe

Offices1 record

Markets served

GTM type

B2B

Offering type

Services

Cost components

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

Revenue model

1. Data Center / Colocation Services: Colocation spaces and server rooms in Germany with optional TÜV NORD CERT Level 3 and Dual Site Level 4 certifications. Rack rental, partial racks, and entire server rooms.
2. Global Network Services: Scalable internet connections, point-to-point connections, network security, FTTH fiber connections, and site connectivity solutions.
3. Cloud as a Service (VCloud): Scalable cloud resources with redundancies across data centers, SSD network storage, and service portals for managing private infrastructure. Public, private, and hybrid cloud options.
4. IT Management Services: Network and email security, XaaS (Anything as a Service), server management, web development, and managed hosting services.
5. Co-Working-Space: Flexible workspaces bookable by day, week, or month with secure high-availability internet connectivity. Targets startups, self-employed, temporary project groups, and companies without regional presence.
6. Domain Registration: As DENIC member since 2000, domains can be registered within hours. SMTP mail relay, SSL certificates, and web hosting services.

Pricing tiers

Go-to-market motion3 records

Distribution channels4 records

Marketing channels13 records

Core offering

Rockenstein AG is a German Internet Service Provider that operates certified data centers and delivers IT infrastructure services across four core areas: data center colocation (with TÜV NORD CERT Level 3 and Dual Site Level 4 certifications), global networking (scalable internet connections, site-to-site connectivity, network security, FTTH), Cloud as a Service via its VCloud platform (public, private, and hybrid options), and managed IT services (consulting, XaaS, web development, Co-Working-Space, Business Continuity Management). The company also offers VoIP, web/email hosting, domain registration as a DENIC member, and emergency workstations, with AI technology services announced for 2026.

Product overview

Rockenstein AG is an Internet Service Provider offering a comprehensive portfolio of IT infrastructure services organized around four core areas: (1) Rechenzentren und Kollokation - data center colocation with TÜV NORD CERT Level 3 and Dual Site Level 4 certifications; (2) Globale Netzwerke - global networking with scalable internet connections, site-to-site connectivity, network security, and FTTH; (3) Cloud as a Service - cloud solutions including VCloud virtual infrastructure, web services, email services, and IP telephony; and (4) IT-Management - managed IT services including consulting, XaaS, web development, Co-Working-Space, Business Continuity Management, and startup services. Supporting services include the rockenstein-Serviceportal for customer self-management, rockenstein-STATUS for infrastructure notifications, rockenstein-FAQ, glossary, downloads, forms, and newsletter. The company operates its own certified data centers in Germany and offers AI technologies as of 2026.

Differentiator

Problem solved

Functional benefit

Products and services

• Rechenzentren und Kollokation (Data Centers and Colocation)
• Globale Netzwerke (Global Networks)
• Cloud as a Service (VCloud)
• IT-Management Services
• Co-Working-Space
• Business Continuity Management
• IP-Telefonie (VoIP)
• Webdienste (Web Hosting)
• E-Mail-Dienste (Email Services)
• KI-Technologien made in Mainfranken (AI Technologies made in Mainfranken)

Quantifiable outcome

• Near 100% data center availability since commissioning
• +4 more outcomes

Segments4 records

Ideal customer profiles2 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature11 records

Partnerships

13 partnerships are on record, tiered core, strategic and minor.

• TÜV NORD CERT GmbHcoreTechnology or Integration · 1 January 2025TÜV NORD CERT conducts annual audits and certifications for Rockenstein's data centers, achieving Dual Site Level 4 (highest level) and TSI Level 3 certifications.
• RAUSCH Technology GmbHstrategicStrategic or Co-development Partner · 1 January 2025Strategic partnership for AI masterclass on data sovereignty. RAUSCH Technology, Dr. Tristan Behrens, and Rockenstein co-organize AI training events supported by AI Week Mainfranken.
• Dr. Tristan Behrens (AI Expert)strategicStrategic or Co-development Partner · 1 January 2025AI expert and educator partnering with Rockenstein and RAUSCH Technology for AI masterclass on data sovereignty in AI solutions.
• AI Week MainfrankenminorGTM or Marketing Partner · 1 January 2025Regional AI event initiative that supports Rockenstein's AI masterclass events. Rockenstein participates in workshops and events during AI Week.
• Franconia.aistrategicStrategic or Co-development Partner · 1 January 2025Franconia.ai is a local AI alternative to US-based AI models, developed as a joint initiative. Rockenstein offers this in beta version as a secure, data-sovereign AI solution for German businesses.
• Cloud Services Made in GermanycoreStrategic or Co-development Partner · 1 August 2016Member since August 2016 of the initiative founded by AppSphere AG. Commits to German headquarters, German law contracts with SLAs, German jurisdiction, and German-language service and support for local customers.
• DQS BIT GmbHcoreTechnology or Integration · 1 January 2016Deutsche Gesellschaft zur Zertifizierung von Managementsystemen Bildung und IT provides ISO 27001 certification audits and surveillance for Rockenstein's information security management system.
• DE-CIXcoreTechnology or Integration · 1 January 2012Direct connection to DE-CIX, Europe's largest and one of the world's largest internet exchanges. Enables direct data exchange with approximately 500 other ISPs and companies from over 50 countries, improving connectivity with shorter paths and faster response times.
• Cisco SystemscoreTechnology or Integration · 1 January 2007First Select Partner in Bavaria for Cisco's SMB (Smart Business Communications) product line. Rockenstein staff (Reimar Barthel) passed Cisco Engineer certification exam to provide network solutions for small and medium businesses.
• DENIC eGcoreTechnology or Integration · 1 November 2000As DENIC member since November 2000, Rockenstein can register domains within hours for their customers. This provides significant advantages in customer service stability and reliability for German domain registrations.
• RIPE NCCcoreTechnology or Integration · 1 January 1998Rockenstein became a member of RIPE NCC (Réseaux IP Européens Network Coordination Centre), the organization responsible for IP address allocation in Europe. This enables direct IP resource management and participation in European internet governance.
• PALLDOMO (Palliativdienst)minorOthersAmbulatory palliative care service. Rockenstein's art exhibition 'Conni RETROSPEKTIVE' raised funds for PALLDOMO through art sales, demonstrating community engagement beyond core business.
• xtrakt media GmbHminorOthersCreative agency responsible for some visual content in Rockenstein's 'we get IT online!' section.

Scale indicators6 records

Recent moves9 records

Expansion highlights6 records

Broad incumbents

• T-Systems (Deutsche Telekom): T-Systems is Deutsche Telekom's enterprise IT arm offering large-scale data center, cloud (Open Telekom Cloud), SAP, and managed services globally. Overlaps with Rockenstein's colocation, cloud, and managed IT but operates at hyperscale and serves multi-national enterprises.
• OVHcloud: OVHcloud is a major European cloud provider operating data centers across multiple countries with strong presence in Germany (Straßburg and Limburg). Overlaps with Rockenstein's cloud infrastructure proposition at much larger scale.
• Host Europe (GoDaddy): Host Europe (now part of GoDaddy) is a German hosting and cloud provider offering web hosting, managed servers, and domain services. Comparable to Rockenstein's web hosting, email, and domain/DENIC services but at much larger scale.
• 1&1 Versatel: 1&1 Versatel is the German B2B fiber network operator owned by United Internet, providing high-bandwidth connectivity, site networking, and data center services. Comparable fiber connectivity and enterprise network offerings, but at much larger national scale.
• Datagroup: Datagroup is a German IT services and data center operator listed on the Frankfurt Stock Exchange, offering managed services, cloud, and colocation across German data centers. Comparable full-service IT infrastructure provider but with substantially broader geographic and customer reach.

Direct peers

• noris network: noris network is a German independent IT provider offering colocation, managed hosting, cloud, and network services from TÜV-certified data centers in Nuremberg. Highly comparable mid-sized German competitor with overlapping data center and cloud offerings.
• PlusServer: PlusServer is a German managed hosting and cloud provider (formerly PlusServer GmbH) operating multiple data centers in Germany and Europe. Direct competitor in managed hosting, dedicated servers, and cloud services for German SMB and enterprise.
• Hetzner Online: Hetzner is a German privately-held data center operator and cloud/hosting provider offering dedicated servers, colocation, and cloud services from multiple German locations. Highly comparable to Rockenstein's data center + cloud + managed services portfolio, with Hetzner operating at significantly larger scale.
• IONOS (1&1 IONOS): IONOS is a leading German web hosting and cloud infrastructure provider offering shared hosting, dedicated servers, cloud servers, and managed services to SMB and enterprise customers. Direct competitor to Rockenstein's hosting/cloud/VCloud product set, with a much larger SMB focus.
• Myloc managed IT: myLoc managed IT is a German data center and managed hosting operator with facilities in Düsseldorf and other locations, offering colocation, dedicated servers, and managed services. Comparable mid-sized competitor in colocation and managed hosting.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat6 records

Key risks5 records

Key highlights7 records

Customer concentration

• Facebookfacebook.com/rockensteinAG
• LinkedInlinkedin.com/company/rockenstein-ag
• Instagraminstagram.com/rockensteinag

Compliance5 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles5 records

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 Rockenstein