Callison
callison GmbH is a privately held German IT services and custom software development firm founded in 2002, delivering bespoke applications, system integration, and managed IT infrastructure to SMBs, medical practices, law firms, and industrial clients in the southern Münsterland region.
- Company typePrivate
- Founded2002
- HeadquartersOelde, Germany
- Headcount11–50
- GTM typeB2B
- OfferingServices
Callison firmographics
Firmographics- Name
- Callison
- Legal name
- callison GmbH
- Website
- https://callison.de
- Company type
- Private
- Founded year
- 2002
- Operating status
- Operating
- Headcount range
- 11–50 employees
- Short description
- callison GmbH is a privately held German IT services and custom software development firm founded in 2002, delivering bespoke applications, system integration, and managed IT infrastructure to SMBs, medical practices, law firms, and industrial clients in the southern Münsterland region.
- Ownership category
- akta.pro rank
Where Callison is headquartered
LocationHeadquarters
- HQ city
- Oelde
- HQ country
- Germany
- HQ region
- Europe
Offices1 record
Markets served
Callison business model
Business model- GTM type
- B2B
- Offering type
- Services
- Cost components
- Personnel, Technology or R&D, Operations, Infrastructure, Marketing or Sales
Revenue model
- Custom software development projects: Project-based bespoke software delivery: clients commission tailor-made applications, integrations and process optimisations, typically delivered as one-off or milestone-based engagements.
- Managed IT services & support: Ongoing IT support for SMB clients in southern Münsterland, including procurement, setup, and continuous support of servers, networks, security, backup, VoIP, NAS, WLAN, email archiving and remote support (e.g. TeamViewer). Likely operates on recurring support contracts supplemented by break-fix and project work.
Go-to-market motion2 records
Distribution channels3 records
Marketing channels7 records
Callison product offering
Product offeringCore offering
callison GmbH designs and builds bespoke software applications, interfaces, and workflow optimizations for clients, and delivers ongoing managed IT services (servers, networks, security, backup, VoIP, email archiving) to small and mid-sized offices, commercial businesses, medical practices, and law firms in the southern Münsterland region of Germany. The company also delivers IoT/SPS process automation solutions for industrial customers using the B&R Automation Runtime platform.
Differentiator
Problem solved
Functional benefit
Products and services
- Individuelle Softwareentwicklung (Custom Software Development) Bespoke design and development of tailored applications for PC, tablet, and smartphone, aligned to clients' operational requirements and processes, delivered as project-based engagements for SMB and industrial clients.
- Schnittstellenintegration (Interface/System Integration) Integration service that connects clients' existing ERP, CRM, production systems, and specialist line-of-business applications to enable seamless end-to-end data exchange without media discontinuity.
- Prozessoptimierung (Process Optimization) Consulting and implementation service that analyzes client workflows, identifies time-consuming detours, and adapts software to support rather than hinder core business processes.
- IT-Service (Managed IT Services) Full-service outsourced IT operations for SMBs, offices, medical practices, and law firms, covering procurement, setup, and ongoing support of Windows Server infrastructure, UTM firewalls, VPN, backup, email archiving, VoIP, NAS, and WLAN, with both on-site and remote (TeamViewer) support.
- Prozessautomatisierung in der Industrie (Industrial Process Automation)
Quantifiable outcome
- Continuous delivery of mid-market IT services since 2002 (more than two decades of operational continuity).
Companies that use Callison
Customer profileSegments4 records
Ideal customer profiles4 records
Callison technology and API
TechnologyTechnology focussed Yes
API detail
- Has API
- No
- API docs
- API detail
Core technology
AI maturity
App detail
Feature6 records
Callison partnerships and signals
Strategic signalPartnerships
Seven partnerships are on record, tiered core internal tooling — used for project management, incident and bug tracking on callison's own delivery work., flagship technology partner — callison's primary software stack (sql server, .net core/framework) and primary collaboration channel (microsoft teams) are microsoft technologies., core technology partner — mongodb is one of the primary data tiers in callison's stack., specialist technology partner — enables callison's industrial / process automation offering., differentiating technology partner — underpins callison's digital workflow / business process solutions., core web analytics partner — used in self-hosted, privacy-preserving form. and core operational tool — used for remote maintenance / fernwartung to customers..
- Atlassian (JIRA)core internal tooling — used for project management, incident and bug tracking on callison's own delivery work.Atlassian's JIRA is the project management, incident and bug tracking platform used by callison internally to manage custom software and IT service engagements. The relationship is them-to-us: Atlassian provides the SaaS tooling that callison relies on.
- Microsoft (SQL Server, .NET Core / Framework, Microsoft Teams)flagship technology partner — callison's primary software stack (sql server, .net core/framework) and primary collaboration channel (microsoft teams) are microsoft technologies.Microsoft SQL Server serves as callison's classic relational database backbone; .NET Core / Framework is the primary development environment for client, server and web applications on Windows (also iOS/Android); Microsoft Teams is used as a direct customer chat and collaboration channel from each team member's profile.
- MongoDB Inc.core technology partner — mongodb is one of the primary data tiers in callison's stack.MongoDB is used by callison as a modern No-SQL database for versatile, extensible solutions alongside SQL Server. The relationship is them-to-us: MongoDB provides the database technology that callison builds on.
- B&R Industrial Automation (Automation Runtime / Automation Studio)specialist technology partner — enables callison's industrial / process automation offering.callison uses B&R's Automation Runtime and Automation Studio as the development environment for IoT, SPS (PLC) and process automation solutions, particularly for industrial clients. The relationship is them-to-us.
- Axon.IVY (Digital Business Platform)differentiating technology partner — underpins callison's digital workflow / business process solutions.Axon.IVY's Digital Business Platform is positioned by callison as a highly integrative and flexible workflow engine for efficient digital business processes; callison builds workflow solutions on top of it. The relationship is them-to-us.
- Matomo (on-premise)core web analytics partner — used in self-hosted, privacy-preserving form.Matomo on premise is used by callison to collect anonymised IP addresses and usage behaviour locally on the server; only the first two bytes of the IP are stored and no data is transmitted to external systems.
- TeamViewercore operational tool — used for remote maintenance / fernwartung to customers.TeamViewer Quick Support is offered from callison's site as the download for fast remote support; customers are advised to close confidential applications before starting a remote session.
Scale indicators4 records
Callison competitors and assessment
Company assessmentDirect peers
- iteratec GmbH: Munich-based German custom software and digital consulting firm with comparable offerings around bespoke application development, system integration and digital workflow consulting for enterprise and mid-market clients.
- bridgingIT GmbH: Mannheim-based German IT consultancy offering custom software, integration, and managed services to mid-market clients across regulated industries — a strong structural peer to callison's Mittelstand software-plus-IT-services model.
- SALT Solutions GmbH: German IT specialist for industrial and manufacturing digitalization, with deep expertise in ERP integration, IoT and process automation. Direct overlap with callison's B&R/IoT and industrial ERP-integration practice.
- CENIT AG: Listed German IT consulting and software firm specialising in industrial digitalization, PLM and process automation — comparable to callison's B&R Automation Runtime / industrial process offering, but at enterprise scale.
- doubleSlash Net-Business GmbH: German mid-sized custom software development and IT services firm headquartered in Friedrichshafen, focused on industrial and Mittelstand customers. Highly comparable to callison in service mix (custom software, integration, process optimisation) and in selling bespoke digital solutions to non-tech SMB and industrial clients.
- PRODYNA SE: German-headquartered custom software and cloud consulting firm (now part of IBM Consulting) that delivers bespoke application development and process integration — the same core service pillars as callison, though at larger scale.
Broad incumbents
- msg systems AG: Large German IT consulting and software group serving insurance, banking, automotive and public sector. Much larger, but the same broad services/vertical playbook that callison operates in at SMB level.
- Allgeier SE: German technology and IT services group with a Mittelstand-focused custom software and managed services arm — directly comparable in customer segment and service mix, but operating at materially greater scale.
- GFT Technologies SE: Stuttgart-listed German IT services group offering custom development, integration and managed services for financial services and industrial clients — comparable on the custom-software-plus-managed-services axis, though at international scale.
- Materna Information & Communications SE: Large Dortmund-based German IT service provider offering custom software, managed services and digital transformation — geographic and service overlap with callison, but operating at significantly larger scale.
Market position
Customer concentration
Callison social profiles
Digital presenceCallison financial estimates
Financial estimateRevenue estimate
Valuation estimate
Callison leadership team
Management profileNumber of profiles
Profiles7 records
Callison funding detail
Funding detailFunding overview
Funding rounds
Investors
Funding detail is available on the Subscription and Enterprise plan.Contact sales →
Callison 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 Callison
What does Callison do?
callison GmbH designs and builds bespoke software applications, interfaces, and workflow optimizations for clients, and delivers ongoing managed IT services (servers, networks, security, backup, VoIP, email archiving) to small and mid-sized offices, commercial businesses, medical practices, and law firms in the southern Münsterland region of Germany. The company also delivers IoT/SPS process automation solutions for industrial customers using the B&R Automation Runtime platform.
Is Callison a public or private company?
Callison is a private company. It is classified as founder individual operated bootstrapped and is currently operating.
When was Callison founded?
Callison was founded in 2002. It employs 11 to 50 people.
Where is Callison based?
Callison is headquartered in Oelde, Germany, in the Europe region.
How does Callison make money?
Two revenue lines are on record. Custom software development projects are the primary driver. The others are managed IT services & support.
Who are Callison's main competitors?
Direct peers on record are iteratec GmbH, bridgingIT GmbH, SALT Solutions GmbH, CENIT AG, doubleSlash Net-Business GmbH and PRODYNA SE. Broad incumbents are msg systems AG, Allgeier SE, GFT Technologies SE and Materna Information & Communications SE.
Does Callison have an API?
No public API is recorded for Callison.