What Mirum does

mirum GmbH is a privately held German IT services company founded in 2002 and headquartered in Kleve, Germany. The company provides custom software development, outsourced development, and software product development services to enterprise clients and startups internationally, with a distributed delivery model that includes a remote workforce in India operated under separate payroll. Its service catalog spans the full software lifecycle: design sprints, prototyping, UX design/research, architecture, cross-platform application development, quality engineering, DevOps, and re-engineering, sold predominantly through direct B2B engagement on a project basis.

Technically, Mirum is positioned as a full-stack Microsoft/.NET shop with a cloud-native delivery orientation. The disclosed technology stack includes .NET Core, Blazor, Angular, C#, TypeScript/JavaScript, REST APIs, SQL Server, PostgreSQL, RabbitMQ, Kafka, Redis, Azure, Kubernetes, Docker, Azure DevOps, and Ansible, organized around microservices and event-driven architecture patterns. The company emphasizes agile delivery (Scrum/Kanban) and positions itself around modern SaaS product development practices. It is represented by two managing directors, Udo Ahrweiler and Gero Pastoors, and operates with no disclosed external investors, parent company, or institutional backing.

Commercially, Mirum runs a professional services revenue model with project-based contracts priced per scope. No packaged product, no published pricing, no recurring SaaS line, and no disclosed revenue figures exist. Customer segmentation is horizontal across enterprise and startup clients, with no named logos, awards, certifications, patents, partnerships, or funding rounds in the source material. Marketing is conducted through the corporate website and a broad but generic social media presence (LinkedIn, Facebook, Instagram, Twitter/X, YouTube, Pinterest). The footprint is described as global in client reach but anchored in EMEA, with no stock listing and limited public financial transparency.

Name

Mirum

Legal name

mirum GmbH

Website

https://mirum.com

Company type

Private

Founded year

2002

Operating status

Operating

Headcount range

1–10 employees

Short description

mirum GmbH is a Kleve, Germany-based IT services firm founded in 2002 that delivers custom software development, outsourced engineering, and product development to enterprise and startup clients using a Microsoft/.NET, cloud-native, microservices-oriented stack.

Ownership category

akta.pro rank

Product category

Custom Software Development Services

NAICS

Custom Computer Programming Services (541511), Computer Systems Design and Related Services (54151)

SIC

Services-Computer Programming Services (7371), Services-Computer Integrated Systems Design (7373)

akta.pro primary industry

Cloud-Native Application Development (Containers/Kubernetes/Serverless) (BPAEAFAE)

akta.pro secondary industry

Cloud-Native Development (Containers, Kubernetes, Microservices) (BPAEACAD)

Keywords

• Custom software development
• IT outsourcing services
• Cloud-native application development
• .NET full-stack development
• Dedicated development teams

Headquarters

HQ city

Kleve

HQ country

Germany

HQ region

Europe

Offices1 record

Markets served

GTM type

B2B

Offering type

Services

Cost components

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

Revenue model

1. Custom Software Development Services: Provides end-to-end software development services including custom software development, outsourced development, and software product development. Revenue is generated through project-based service contracts with enterprise and startup clients.

Go-to-market motion1 record

Distribution channels2 records

Marketing channels7 records

Core offering

Mirum GmbH is a B2B software development and IT outsourcing firm that delivers custom software solutions for web, cloud, mobile, and desktop platforms. It offers the full software lifecycle — discovery, UX design, architecture, application development, quality engineering, DevOps, and maintenance — to enterprise clients and startups, and provides dedicated outsourced development teams for ongoing engagements.

Product overview

Mirum is a custom software development and IT outsourcing services company offering a comprehensive portfolio of services rather than a packaged software product. The core offerings include Custom Software Development, Outsourced Development, and Software Product Development, which encompass the full development lifecycle from idea to product. Supporting services include Design Sprint, Prototyping, UX Design/Research, Architecture, Application Development, Quality Engineering, DevOps, and Re-Engineering. Additional service offerings include Web Development, Mobile Development, QA & Testing, IT Consultancy, UI/UX Design, and Dedicated Team staffing. The company uses agile methodologies (Scrum, Kanban) and builds cloud-native applications using Microsoft technologies (.NET, C#, Angular).

Differentiator

Problem solved

Functional benefit

Products and services

• Custom Software Development Tailored software solutions for web, cloud, mobile, and desktop platforms, covering the full development lifecycle from discovery and design through application development, quality engineering, and DevOps. Targeted at enterprise organizations and startups requiring customized software.
• Outsourced Development Provision of dedicated development teams and outsourced software engineering services, allowing clients to leverage external expertise and capacity for their technology projects.
• Software Product Development End-to-end development of software products, including architecture design, application development, and quality engineering from concept through launch.
• Web Development Web application development leveraging extensive coding experience to deliver modern, scalable web solutions for clients.
• Mobile Development Enterprise software development, integration, and legacy system modernization for mobile platforms.
• QA & Testing Comprehensive multi-stage testing and auditing of software to ensure quality and reliability.
• IT Consultancy Technology consulting to eliminate workflow pain points, implement new technologies, and consolidate applications.
• UI/UX Design Product design services using clear and effective design methodologies with experienced teams to deliver the product the client needs on time.
• Dedicated Team Dedicated development team services leveraging proven processes for building and motivating high-performance teams, used by clients over the past decade.

Segments2 records

Ideal customer profiles2 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature2 records

Scale indicators3 records

Recent moves4 records

Expansion highlights3 records

Direct peers

• Intellectsoft: UK/US-headquartered custom software and digital transformation consultancy with comparable Microsoft-stack, cloud-native, and outsourced-development offerings. Directly relevant as the source of website copy Mirum appears to have reused.
• Netguru: Poland-based custom software development and design firm serving startups and enterprises with cloud-native web/mobile builds — similar scale, customer mix and full-stack delivery model.
• Inoxoft: Mid-size outsourced custom software development company targeting startups and enterprises with web, cloud, and mobile capabilities — closely comparable in service portfolio and positioning.
• Andersen Lab: Custom software development provider with European (German-speaking market) presence, offering end-to-end web, cloud, and enterprise application development to enterprise clients.
• Itransition: Full-cycle custom software development company delivering web, mobile, cloud, QA and DevOps services to enterprises and startups — comparable horizontal service portfolio.
• Simform: Custom software and product development firm offering cloud-native application development, DevOps, and QA services to mid-market and enterprise clients.
• BairesDev: Large nearshore custom software development provider offering dedicated teams and end-to-end product development across cloud-native stacks — comparable GTM and delivery model.

Broad incumbents

• ThoughtWorks: Established global consultancy specializing in custom software engineering, cloud-native architecture and digital transformation — overlaps heavily with Mirum's stack but at vastly larger scale.
• GlobalLogic (Hitachi): Global digital engineering firm owned by Hitachi, offering custom software, cloud, and embedded engineering at massive scale — directly overlapping service lines but orders of magnitude larger.
• EPAM Systems: Large publicly-listed digital engineering services provider covering cloud-native development, DevOps, QA, and product engineering — competes for the same enterprise modernization RFPs.

Market position

Strengths4 records

Weaknesses4 records

Competitive moat2 records

Key risks6 records

Key highlights5 records

Customer concentration

• LinkedInlinkedin.com/company/mirum-gmbh

Revenue estimate

Valuation estimate

Number of profiles

Profiles2 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 Mirum