One it GmbH
German IT services firm based in Friedberg, Hessen, providing managed services and IT consulting to mid-market companies and large enterprises, with specialization in network engineering and telecommunications. Acquired by citadelle systems AG in August 2025 as its 14th location.
- Company typePrivate
- Founded2001
- HeadquartersFriedberg, Germany
- Headcount11–50
- GTM typeB2B
- OfferingServices
What One it GmbH does
@one IT GmbH is a German IT services company headquartered in Friedberg, Hessen, founded in 2001 by Thomas Novak (Managing Director) and Sascha Kurth (CFO/CCO). The firm operates two integrated service pillars: Managed Services (full or partial IT outsourcing, remote and on-site support, monitoring, virtualization, hardware/software lifecycle, and IT security) and IT-Consulting (project-based consulting on networks, cloud, IT security, Windows, Linux, OpenStack, and databases). The underlying technology stack spans Microsoft (Windows Server, Exchange, Active Directory, SQL Server, M365), Linux, virtualization (VMware, Hyper-V, Proxmox), cloud platforms (Azure, AWS, Alibaba, M365), multiple databases (MySQL, Postgres, Microsoft SQL Server, Oracle), and the proprietary in-house "Corvus" SNMP monitoring tool. Remote support is delivered via TeamViewer, Microsoft Teams, and a custom-branded AnyDesk client.
The business serves two principal customer segments: the German Mittelstand (mid-market) as its primary target, where it acts either as a supplement to internal IT or as full external IT partner, and large enterprises/Großunternehmen (including telecommunications and provider-network operators) on complex projects. Revenue is generated through managed services contracts (recurring monthly billing with quote-based pricing), project-based consulting, hardware resale/system integration, and cloud migration/licensing services. Named reference customers include blfp planungs gmbh, Denis Privé GmbH, and Pegasus Spiele. Distribution is direct and consultative, supported by content marketing (corporate blog, LinkedIn, Facebook, Instagram), an annual Vortragsabend thought-leadership event, and regional sports sponsorships (EC Bad Nauheim, ASC Marathon Friedberg). The company employs over 35 people and was acquired in August 2025 by citadelle systems AG (Essen), becoming the group's 14th IT-Systemhaus location and gaining access to a nationwide 14-site, 230+ employee platform; citadelle was ranked #1 IT-Systemhaus nationally in the 2025 Service Provider Award.
One it GmbH firmographics
Firmographics- Name
- One it GmbH
- Legal name
- @one IT GmbH
- Website
- https://one-it.de
- Company type
- Private
- Founded year
- 2001
- Operating status
- Acquired
- Headcount range
- 11–50 employees
- Short description
- German IT services firm based in Friedberg, Hessen, providing managed services and IT consulting to mid-market companies and large enterprises, with specialization in network engineering and telecommunications. Acquired by citadelle systems AG in August 2025 as its 14th location.
- Ownership category
- akta.pro rank
One it GmbH industry classification
Industry- Product category
- IT Managed Services & Consulting
- NAICS
- Computer Systems Design and Related Services (54151), Computer Systems Design Services (541512)
- SIC
- Services-Computer Integrated Systems Design (7373)
- akta.pro primary industry
- ITSM Managed Services (Run/Operate/Optimize) (BPAEAJAN)
- akta.pro secondary industries
- IT Asset Discovery, Inventory & CMDB Services (BPAEAOAE), ITIL/ITSM Process Consulting & Implementation (BPAEAJAB)
Keywords
Where One it GmbH is headquartered
LocationHeadquarters
- HQ city
- Friedberg
- HQ country
- Germany
- HQ region
- Europe
Offices2 records
Markets served
One it GmbH business model
Business model- GTM type
- B2B
- Offering type
- Services
- Cost components
- Personnel, Technology or R&D, Operations, Infrastructure, Marketing or Sales
Revenue model
- Managed Services (recurring IT operations): Ongoing IT support contracts covering monitoring, maintenance, patch management, helpdesk/ticketing, and remote & on-site support. Described as flexible engagement models used either as supplement to internal IT or as full external IT partner, with clear (quote-based) pricing.
- IT-Consulting / Project Services: Project-based consulting for Großkunden covering analysis, conception, implementation of complex IT projects in network engineering, cloud migration, IT-security audits, database administration, and Windows/Linux environments. Includes long-term enterprise engagements.
- Hardware Resale / System Integration: Manufacturer-independent procurement and integration of new hardware as part of system integration projects within Managed Services.
- Cloud Migration & Licensing Services: Cloud migration and resource-optimization services around Azure, M365, AWS and Alibaba, including licensing optimization for Microsoft environments.
Pricing tiers
| Model | Billing | Price |
|---|---|---|
| Other | Monthly | Quote-based managed services packages with flexible engagement scope |
Go-to-market motion1 record
Distribution channels3 records
Marketing channels7 records
One it GmbH product offering
Product offeringCore offering
@one IT GmbH provides end-to-end IT Managed Services and IT-Consulting to German mid-market and large enterprise customers, covering the full lifecycle from analysis, conception and implementation through to ongoing remote and on-site support and maintenance. Offerings span networking, virtualization, hardware/software lifecycle, cloud migration (Azure, M365, AWS, Alibaba), IT security, database administration, and the proprietary "Corvus" SNMP monitoring tool. The company operates manufacturer-independently and either supplements an in-house IT team or acts as the full external IT partner.
Product overview
One IT GmbH operates as an IT services provider rather than a single unified SaaS product. Its offering is built around two core service pillars — Managed Services and IT-Consulting — supplemented by a proprietary tool (Corvus) and a Green-IT practice. Managed Services covers IT-Beratung, IT-Support/IT-Wartung, Virtualisierung, Hardware/Software support, and IT-Sicherheit. IT-Consulting covers expertise areas including Projektmanagement, Netzwerke, IT-Sicherheit, Cloud (Azure, M365, AWS, Alibaba), Windows, Linux, OpenStack, Datenbanken (Oracle, SQL, MySQL), and the proprietary Corvus SNMP Management Tool. Together, Managed Services and IT-Consulting form the operational backbone, while Corvus and Green-IT function as specialized extensions of the portfolio.
Differentiator
Problem solved
Functional benefit
Products and services
- Managed Services Full-service IT operations offering tailored for medium-sized businesses, covering IT-Beratung, IT-Support/IT-Wartung (remote and on-site), Virtualisierung, Hardware and Software support, and IT-Sicherheit. Functions either as a supplement to internal IT or as the complete external IT partner.
- IT-Consulting High-skill IT consulting for enterprise-scale projects, covering project management, networks, IT security, cloud, Windows, Linux, OpenStack, databases, and the Corvus SNMP Management Tool. Focused on complex projects for major customers (Großunternehmen).
- Corvus SNMP Management Tool Proprietary SNMP Management Tool that captures and visualizes real-time performance data from SNMP-enabled network devices (routers, switches, servers, firewalls, printers). Provides graphical presentation plus .xls and .csv reports for further analysis.
- Green-IT Optimization Sustainability-oriented IT offering focused on reducing power consumption and resource use through modern technologies, virtualization, and process optimization. The company reports having achieved an 80% power reduction internally through these practices.
- IT-Sicherheit (Security Consulting) IT security consulting covering security assessments, audits, identification of internal and external threats, tailored security strategies and action plans, network security, malware protection, and encryption technologies.
- Cloud Consulting & Migration Cloud consulting and migration services across Azure, Microsoft 365, AWS, and Alibaba. Supports cloud migration, resource optimization, and infrastructure modernization.
- Windows Consulting Consulting on Microsoft Windows environments including Server, Exchange, Active Directory, and SQL Server. Covers license optimization, hardening, email archiving, fault tolerance, malware protection, migrations, and technology refreshes.
- Linux Consulting Consulting on Linux for internet/intranet use cases including mail servers with spam defense, file/print servers with antivirus, firewalls, intrusion detection/prevention, dial-in routers, web/application servers, proxy servers, DNS, and VPN gateways.
- Network Consulting Network consulting from planning through ongoing support, covering LAN/WAN environments, wired and wireless connectivity, and VPN solutions built on shared physical communication networks.
- OpenStack Consulting Consulting on OpenStack, the open-source cloud computing platform for Linux that delivers cloud services on standard hardware via APIs for orchestration of hardware systems, virtual machines, and containers.
- Database Consulting Database consulting and management for Oracle, SQL, and MySQL databases, supporting storage, administration, and analysis of large data volumes.
- IT Project Management Consulting IT project management consulting covering project initiation, clear objectives, timelines, resources, fixed budgets, interdisciplinary collaboration, and methodology/tooling selection to minimize risk and deliver on goals.
Quantifiable outcome
- Achieved an 80% reduction in own electricity consumption through Green IT measures
- +2 more outcomes
Companies that use One it GmbH
Customer profileNamed customers3 records
Segments3 records
Ideal customer profiles3 records
One it GmbH technology and API
TechnologyTechnology focussed No
API detail
- Has API
- No
- API docs
- API detail
Core technology
AI maturity
App detail
Integration3 records
Feature3 records
One it GmbH partnerships and signals
Strategic signalPartnerships
Five partnerships are on record, tiered flagship - corporate parent and primary growth vehicle, minor - regional community sponsorship, minor - regional sponsorship for brand visibility and minor - co-presenter at one annual event.
- citadelle systems AGflagship - corporate parent and primary growth vehicleIn August 2025 Essen/Friedberg-based citadelle systems AG acquired and integrated @one IT GmbH into its group, growing the group to 14 IT-Systemhaus-Standorte and over 230 employees. The deal strengthens regional presence in Rhein-Main and adds expertise in IT-Consulting, Managed Services, network engineering and telecommunications/provider-network projects. ONE IT customers gain access to the group's expanded portfolio and procurement, while ONE IT contributes deep telecom and mid-market/enterprise experience.
- ASC Marathon Friedbergminor - regional community sponsorshipONE IT financially supports the 47th edition of the "Rund um den Winterstein" Volkslauf organized by ASC Marathon Friedberg, contributing to local sports/community engagement.
- EC Bad Nauheim (Rote Teufel)minor - regional sponsorship for brand visibilityONE IT is a sponsor of the Eishockey Club Bad Nauheim and attended the 21.01.2025 home game vs. Freiburg. Sponsorship is used for regional PR/brand-building in the Wetterau/Rhein-Main area.
- Trabert Unternehmenskonzepte (Michael Trabert)minor - co-presenter at one annual eventCo-presented at the ONE IT Vortragsabend on 7 November 2024 in Friedberg, where Michael Trabert of Trabert Unternehmenskonzepte covered legal risks for companies and executives in the digital era (DSGVO, data security).
- ARTS UNLIMITED GmbH
Scale indicators5 records
Recent moves5 records
Expansion highlights5 records
One it GmbH competitors and assessment
Company assessmentBroad incumbents
- CANCOM: German-headquartered IT services and cloud provider serving mid-market and enterprise. Comparable offering across managed services, cloud consulting (Azure/AWS), virtualization and IT security consulting.
- Computacenter: Major European IT infrastructure provider with strong managed-services and enterprise consulting practice. Comparable as a large-scale competitor in IT support, networking, cloud migration and managed operations for enterprise clients.
- Allgeier: German IT services group with strong presence in IT consulting, managed services and technology staffing. Comparable to @one IT in core service mix (consulting + managed services + project delivery) and mid-market/enterprise focus.
- msg group: German IT consulting and software group with strong project-based consulting practice serving enterprise and regulated industries. Comparable as a larger German competitor with overlapping IT-consulting and infrastructure expertise.
- citadelle systems AG: Parent group of @one IT since August 2025, operating 14 IT-Systemhaus locations across Germany with over 230 employees and ranked #1 IT-Systemhaus nationally in the 2025 Service Provider Award. Most directly comparable as the acquiring platform that defines One IT's go-to-market scope.
- Bechtle AG: Largest German IT-Systemhaus with national footprint in IT consulting, managed services, hardware resale and cloud. Directly comparable as a German mid-market/enterprise IT services and system integration peer with similar managed-services-plus-consulting model.
Direct peers
- GOB Software & Systeme: Mid-sized German IT-Systemhaus providing managed services, IT consulting and infrastructure projects to the Mittelstand. Closely comparable peer in size, regional focus and managed-services-plus-consulting model.
- SVA System Vertrieb Alexander: Mid-sized German IT-Systemhaus focused on enterprise data center, virtualization, cloud and managed services. Closely comparable peer to @one IT in service portfolio and target customer segment (Mittelstand and enterprise).
- SHD Group: German IT-Systemhaus with managed services, cloud and infrastructure consulting for mid-market clients. Comparable peer in customer segment (Mittelstand) and service portfolio.
Emerging players
- IT-Novum: Smaller German IT services firm focused on open-source infrastructure, database and analytics consulting. Partial overlap with One IT's OpenStack, Linux and database consulting practice, especially for enterprise data platforms.
Market position
Strengths5 records
Weaknesses4 records
Competitive moat4 records
Key risks6 records
Key highlights6 records
Customer concentration
One it GmbH social profiles
Digital presenceOne it GmbH compliance and trust
Trust signalCompliance1 record
One it GmbH financial estimates
Financial estimateRevenue estimate
Valuation estimate
One it GmbH leadership team
Management profileNumber of profiles
Profiles2 records
One it GmbH funding detail
Funding detailFunding overview
Funding rounds
Investors
Funding detail is available on the Subscription and Enterprise plan.Contact sales →
One it GmbH M&A and investment
M&A and investmentM&A
Investments
M&A and investment is available on the Subscription and Enterprise plan.Contact sales →
Frequently asked questions about One it GmbH
What does One it GmbH do?
@one IT GmbH provides end-to-end IT Managed Services and IT-Consulting to German mid-market and large enterprise customers, covering the full lifecycle from analysis, conception and implementation through to ongoing remote and on-site support and maintenance. Offerings span networking, virtualization, hardware/software lifecycle, cloud migration (Azure, M365, AWS, Alibaba), IT security, database administration, and the proprietary "Corvus" SNMP monitoring tool. The company operates manufacturer-independently and either supplements an in-house IT team or acts as the full external IT partner.
Is One it GmbH a public or private company?
One it GmbH is a private company. It is classified as corporate owned and is currently acquired.
When was One it GmbH founded?
One it GmbH was founded in 2001. It employs 11 to 50 people.
Where is One it GmbH based?
One it GmbH is headquartered in Friedberg, Germany, in the Europe region.
How does One it GmbH make money?
Four revenue lines are on record. Managed Services (recurring IT operations) is the primary driver. The others are IT-Consulting / Project Services, hardware Resale / System Integration and cloud Migration & Licensing Services.
Who are One it GmbH's main competitors?
Broad incumbents on record are CANCOM, Computacenter, Allgeier, msg group, citadelle systems AG and Bechtle AG. Direct peers are GOB Software & Systeme, SVA System Vertrieb Alexander and SHD Group. IT-Novum is listed as an emerging player.
Does One it GmbH have an API?
No public API is recorded for One it GmbH.
What industry is One it GmbH in?
One it GmbH's product category is IT Managed Services & Consulting. Its primary akta.pro industry code is BPAEAJAN, ITSM Managed Services (Run/Operate/Optimize), with a secondary code of BPAEAOAE, IT Asset Discovery, Inventory & CMDB Services. Its NAICS code is 54151 and its SIC code is 7373.