Willert Software Tools
Willert Software Tools develops model-based systems engineering (MBSE) and OSLC integration software for IBM ELM, serving aerospace, automotive, defense, medical, and railway engineering teams since 1992, now operating as SodiusWillert.
- Company typePrivate
- Founded1992
- HeadquartersBückeburg, Germany
- Headcount1–10
- GTM typeB2B
- OfferingSoftware
What Willert Software Tools does
Willert Software Tools GmbH is a Bückeburg, Germany-based custom software development company founded in 1992, specializing in model-based systems engineering (MBSE), requirements management, and tool interoperability for regulated industries including aerospace, automotive, defense, medical devices, and railway transport. The company builds OSLC-based connectors and publishers, the Embedded UML Studio/RXF toolchain for embedded software development, and complementary products such as SECollab and ReqXChanger that integrate with IBM's Engineering Lifecycle Management (ELM) suite. Willert holds IBM Partner Plus Platinum status and operates as an official reseller of IBM ELM products, with a customer base that includes Airbus, BAE Systems, Boeing, Bosch, Continental, Daimler, Northrop Grumman, and Raytheon.
The company's business model combines commercial software licensing (OSLC connectors, Embedded UML Studio, ReqXChanger, SECollab, and the recently introduced AI Modeling Assistant for IBM Rhapsody) with professional services around deployment, customization, and integration into customer engineering toolchains. Revenue is generated from enterprise contracts with safety-critical engineering programs, where tool qualification, traceability, and standards compliance (e.g., DO-178C, ISO 26262, IEC 61508, EN 50128) are mandatory. In 2024, Willert merged with France-based Sodius SAS to form the combined SodiusWillert group, with offices now in Bückeburg (Germany), Nantes (France), Scottsdale, AZ, and Royal Oak, MI. The combined entity operates as a pure-play MBSE and OSLC integration specialist with a sharpened focus on regulated-industry digital engineering, and has recently extended its product line with a generative AI assistant for IBM Rhapsody modeling workflows.
Willert Software Tools firmographics
Firmographics- Name
- Willert Software Tools
- Legal name
- Willert Software Tools GmbH
- Website
- https://willert.de
- Company type
- Private
- Founded year
- 1992
- Operating status
- Operating
- Headcount range
- 1–10 employees
- Short description
- Willert Software Tools develops model-based systems engineering (MBSE) and OSLC integration software for IBM ELM, serving aerospace, automotive, defense, medical, and railway engineering teams since 1992, now operating as SodiusWillert.
- Ownership category
- akta.pro rank
Willert Software Tools industry classification
Industry- Product category
- Systems Engineering Software Tools
- NAICS
- Custom Computer Programming Services (541511), Computer Systems Design Services (541512), Engineering Services (54133)
- SIC
- Services-Computer Programming Services (7371), Services-Engineering Services (8711), Services-Computer Integrated Systems Design (7373)
- akta.pro primary industry
- Systems Engineering & Technical Program Management (BPAHAIAI)
- akta.pro secondary industries
- Embedded Software & Firmware Tools (Compilers, Debug, RTOS tooling) (HDAHAFAE), Reliability, Safety & Risk Engineering (RAMS/PSM) Consulting (BPAHAIAK)
Keywords
Where Willert Software Tools is headquartered
LocationHeadquarters
- HQ city
- Bückeburg
- HQ country
- Germany
- HQ region
- Europe
Offices4 records
Markets served
Willert Software Tools business model
Business model- GTM type
- B2B
- Offering type
- Software
- Cost components
- Personnel, Technology or R&D, Marketing or Sales, Operations, Infrastructure
Revenue model
- Software Licenses and Subscriptions: Sale of proprietary tools and IBM software as an official reseller. Products include OSLC connectors, model exchange publishers, embedded UML tools, requirements management solutions, and IBM Engineering Lifecycle Management products.
- Professional Services: Implementation services, training courses, systems and software engineering workshops, coaching, and safety-critical systems development support.
- IBM Engineering Lifecycle Management Products: Resale of IBM software including Rhapsody, DOORS, DOORS Next, Engineering Test Management, Engineering Workflow Management, and related add-ons.
Pricing tiers
| Model | Billing | Price |
|---|---|---|
| Subscription | Annual | Enterprise pricing - custom quotes for regulated industry deployments |
Go-to-market motion3 records
Distribution channels3 records
Marketing channels8 records
Willert Software Tools product offering
Product offeringCore offering
Willert Software Tools (operating as SodiusWillert) develops and sells proprietary integration, modeling, and requirements engineering software for engineering teams in regulated industries. The portfolio centers on OSLC-based connectors, cross-vendor model exchange publishers (between IBM Rhapsody, Cameo/MagicDraw, SPARX Enterprise Architect, IBM RSA, and UNICOM System Architect), Embedded UML tooling for resource-constrained safety-critical targets (with AUTOSAR Classic Platform support), and add-ons for IBM DOORS/DOORS Next. SodiusWillert is also an IBM Official Reseller at IBM Partner Plus platinum level, distributing IBM Engineering Lifecycle Management products (Rhapsody, DOORS, Test Management, Workflow Management) and Arm Keil Development Tools alongside implementation and training services.
Product overview
Willert Software Tools (operating as SodiusWillert) offers a comprehensive portfolio of solutions for complex systems and software development in regulated industries including aerospace, automotive, defense, medical, and railway. The offering is a platform-plus-modules architecture consisting of: (1) OSLC Connectors (for Jira, PTC Windchill, Confluence) enabling integration between engineering tools and software development; (2) Systems Models Exchange products including Publishers for SPARX Enterprise Architect, IBM Rhapsody, IBM Rational Software Architect, and UNICOM System Architect that convert models to Cameo Systems Modeler, plus M2M Transformation for IBM Rhapsody; (3) Design and Modeling tools including Embedded UML Studio, Embedded UML RXF, Embedded UML RXF-Cert, Profile Builder for IBM Rhapsody, and Power Pack for IBM Rhapsody; (4) Requirements Engineering solutions including ReqXChanger, Requirements Studio, Requirements Management Widgets, DXL Editor Pro, and TopTeam Requirements; (5) SECollab as the unified web platform for publishing engineering data from multiple tools; (6) AI Modeling Assistant for IBM Rhapsody for AI-assisted modeling; (7) IBM Engineering Lifecycle Management resold products (DOORS, DOORS Next, Test Management, Workflow Management, Rhapsody variants); (8) RXF for AUTOSAR Classic Platform for embedded automotive development; and (9) Arm Keil Development Tools for embedded development. The company is an IBM Official Reseller with Platinum partnership status.
Differentiator
Problem solved
Functional benefit
Products and services
- OSLC Connect for Jira OSLC connector that links Jira Software with other engineering applications using the OSLC protocol for linked data integration across the development lifecycle. Sold to engineering teams in regulated industries.
- OSLC Connect for PTC Windchill OSLC connector that connects PTC Windchill PLM with software development applications using the OSLC protocol, enabling linked data across engineering and product domains.
- OSLC Connect for Confluence OSLC connector that links Confluence with software development applications via the OSLC protocol for engineering collaboration and traceability.
- Publisher for SPARX Enterprise Architect Publisher that converts SPARX Enterprise Architect models into Cameo Systems Modeler (MagicDraw) models for cross-tool systems engineering collaboration.
- Publisher for IBM Rhapsody Publisher that converts IBM Rhapsody models into Cameo Systems Modeler (MagicDraw) models.
- Publisher for IBM Rhapsody - Cameo Importer Importer that converts Cameo Systems Modeler (MagicDraw) models back into IBM Rhapsody models to support bidirectional model exchange.
- Publisher for IBM Rational Software Architect Publisher that converts IBM Rational Software Architect models into Cameo Systems Modeler (MagicDraw) models.
- Publisher for UNICOM System Architect Publisher that converts UNICOM System Architect models into Cameo Systems Modeler (MagicDraw) models.
- M2M Transformation for IBM Rhapsody Provides model-based model-to-model (M2M) transformation within IBM Rhapsody, enabling automated transformation between modeling dialects and profiles.
- ReqXChanger Connects ReqIF Compatible Requirements data to the modeling environment for requirements traceability across tools.
- SECollab Unified web platform that publishes engineering data from multiple tools (including IBM Rhapsody, Cameo, DOORS, DOORS Next) for collaborative review, configuration management, and traceability.
- Embedded UML Studio UML-based development environment that unlocks the benefits of UML modeling for embedded software development, including generation of resource-constrained C/C++ code.
- Embedded UML RXF Real-time eXecution Framework (RXF) that leverages the full scope of UML for Model-Based Development of embedded systems, suited to memory- and processor-constrained targets.
- Embedded UML RXF-Cert Simplifies UML-based development of certification-ready source code for safety-critical embedded systems, supporting safety standards such as IEC 61508 and ISO 26262.
- AI Modeling Assistant for IBM Rhapsody Generative AI assistant that improves IBM Rhapsody productivity through AI-assisted model creation, refinement, and reverse engineering of code/models into Rhapsody.
- RXF for AUTOSAR Classic Platform Enables UML-based software development for AUTOSAR Classic Platform, supporting automotive ECU development with model-based workflows.
- Profile Builder for IBM Rhapsody Graphic modeling environment that simplifies creating, editing, and maintaining UML/SysML profiles in IBM Rhapsody.
- Power Pack for IBM Rhapsody Reduces manual work in IBM Rhapsody through automation helpers that accelerate routine modeling tasks.
- Requirements Studio Facilitates compliance with standards and security requirements in requirements engineering workflows.
- Requirements Management Widgets Boosts the value of IBM DOORS Next with additional requirements management widgets and capabilities.
- DXL Editor Pro Enables editing, compiling, executing, and debugging of DXL scripts for IBM DOORS.
- TopTeam Requirements Requirements management tool for capturing and tracking requirements across projects.
- IBM Engineering Lifecycle Management (ELM) IBM's integrated platform for managing requirements, test, and workflow across the engineering lifecycle; resold and supported by SodiusWillert under IBM Partner Plus platinum status.
- IBM Engineering Requirements Management DOORS IBM DOORS requirements management solution resold and supported by SodiusWillert for enterprise engineering programs.
- IBM Engineering Requirements Management DOORS Next Web-based next-generation IBM requirements management solution resold and supported by SodiusWillert.
- IBM Engineering Test Management IBM test management solution for planning and managing tests within the engineering lifecycle, resold and supported by SodiusWillert.
- IBM Engineering Workflow Management IBM workflow management for engineering team collaboration and task tracking, resold and supported by SodiusWillert.
- IBM Rhapsody Systems Engineering IBM Rhapsody product for systems engineering, resold and supported by SodiusWillert.
- IBM Engineering Rhapsody IBM Engineering Rhapsody product for systems design, resold and supported by SodiusWillert.
- IBM Engineering Rhapsody Model Manager IBM solution for managing IBM Rhapsody models within the engineering lifecycle, resold and supported by SodiusWillert.
- IBM Engineering Rhapsody TestConductor Add On IBM test conductor add-on for IBM Rhapsody enabling test case execution and verification, resold and supported by SodiusWillert.
- IBM Engineering Lifecycle Optimization - Publishing IBM publishing solution for engineering lifecycle optimization and documentation generation, resold and supported by SodiusWillert.
- Sparx Systems Enterprise Architect Sparx Systems Enterprise Architect UML modeling tool, resold and supported by SodiusWillert.
- Arm Keil Development Tools Arm Keil embedded development tools for microcontroller and microprocessor software development, offered through licensing by SodiusWillert.
Quantifiable outcome
- Organizations served include leading aerospace, automotive, and defense companies worldwide
Companies that use Willert Software Tools
Customer profileNamed customers8 records
Segments4 records
Ideal customer profiles3 records
Willert Software Tools technology and API
TechnologyTechnology focussed Yes
API detail
- Has API
- No
- API docs
- API detail
Core technology
AI maturity
App detail
Integration13 records
AI capability4 records
Feature7 records
Willert Software Tools partnerships and signals
Strategic signalPartnerships
One partnership is on record.
- IBMcoreIBM Official Reseller and IBM Partner Plus platinum partner. SodiusWillert resells IBM Engineering Lifecycle Management products including IBM Rhapsody, IBM DOORS, DOORS Next, Engineering Test Management, Engineering Workflow Management, Rhapsody Model Manager, and related tools. The partnership involves selling, implementing, and supporting IBM engineering software tools.
Scale indicators2 records
Recent moves6 records
Expansion highlights5 records
Willert Software Tools competitors and assessment
Company assessmentDirect peers
- Sparx Systems (Enterprise Architect): Sparx Systems Enterprise Architect is a flagship UML/SysML modeling tool that Willert both resells and provides model-exchange publishers for. It is a direct peer in the MBSE/architecture tooling space with a large global user base.
- Jama Software: Jama Connect is a leading requirements management platform used heavily in medical devices, automotive, and aerospace — the same verticals Willert targets. It is a direct peer in requirements traceability and compliance-driven engineering.
- Sodius (parent): Sodius SAS is the French parent entity of the SodiusWillert group; the two firms merged to operate under a unified brand. They share product lines, customers, and engineering teams, making Sodius the closest direct peer to the Willert entity.
Emerging players
- Visure Solutions: Visure Requirements is a requirements management platform focused on safety-critical and compliance-driven development in aerospace, automotive, medical, and railway — directly overlapping Willert's verticals and use cases around IEC 61508, ISO 26262, and DO-178B.
- Eclipse Capella: Capella is an open-source MBSE workbench widely adopted in aerospace, railway, and defense — direct overlap with Willert's core verticals. As a credible free alternative to commercial MBSE tools, it represents both an ecosystem adjacency and a long-term competitive risk.
Broad incumbents
- Aras: Aras Innovator is an open-architecture PLM platform with systems engineering and requirements capabilities that overlap with Willert's addressable market. Comparable as a broad-incumbent alternative in regulated-industry engineering.
- Dassault Systèmes (Cameo Systems Modeler / 3DEXPERIENCE): Dassault owns Cameo Systems Modeler (MagicDraw) — the target platform for Willert's publishers — and competes broadly in MBSE and systems engineering. As the dominant MBSE platform vendor, it is both a partner ecosystem anchor and a competitive threat to Willert's standalone tools.
- PTC: PTC's Windchill PLM suite is one of Willert's explicit OSLC integration targets, and PTC competes across model-based systems engineering, requirements, and PLM. Comparable as a broad incumbent in the same engineering-tool ecosystem.
- Siemens Digital Industries (Polarion, Teamcenter): Siemens offers Polarion ALM for requirements/test management and Teamcenter for PLM, both of which compete with IBM ELM and Willert's connectors in regulated-industry engineering workflows. Comparable as a broad incumbent with overlapping MBSE, ALM, and PLM capabilities.
- IBM Engineering (Rhapsody, DOORS, ELM): IBM's Engineering Lifecycle Management portfolio is the foundation of Willert's add-on business and the primary channel partner. As the broader platform incumbent in requirements, modeling, and test management, IBM is both Willert's biggest enabler and its largest strategic dependency.
Market position
Strengths5 records
Weaknesses4 records
Competitive moat5 records
Key risks5 records
Key highlights7 records
Customer concentration
Willert Software Tools social profiles
Digital presenceWillert Software Tools compliance and trust
Trust signalCompliance5 records
Willert Software Tools financial estimates
Financial estimateRevenue estimate
Valuation estimate
Willert Software Tools leadership team
Management profileNumber of profiles
Willert Software Tools funding detail
Funding detailFunding overview
Funding rounds
Investors
Funding detail is available on the Subscription and Enterprise plan.Contact sales →
Willert Software Tools 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 Willert Software Tools
What does Willert Software Tools do?
Willert Software Tools (operating as SodiusWillert) develops and sells proprietary integration, modeling, and requirements engineering software for engineering teams in regulated industries. The portfolio centers on OSLC-based connectors, cross-vendor model exchange publishers (between IBM Rhapsody, Cameo/MagicDraw, SPARX Enterprise Architect, IBM RSA, and UNICOM System Architect), Embedded UML tooling for resource-constrained safety-critical targets (with AUTOSAR Classic Platform support), and add-ons for IBM DOORS/DOORS Next. SodiusWillert is also an IBM Official Reseller at IBM Partner Plus platinum level, distributing IBM Engineering Lifecycle Management products (Rhapsody, DOORS, Test Management, Workflow Management) and Arm Keil Development Tools alongside implementation and training services.
Is Willert Software Tools a public or private company?
Willert Software Tools is a private company. It is classified as unknown and is currently operating.
When was Willert Software Tools founded?
Willert Software Tools was founded in 1992. It employs 1 to 10 people.
Where is Willert Software Tools based?
Willert Software Tools is headquartered in Bückeburg, Germany, in the Europe region.
How does Willert Software Tools make money?
Three revenue lines are on record. Software Licenses and Subscriptions are the primary driver. The others are professional Services and IBM Engineering Lifecycle Management Products.
Who are Willert Software Tools's main competitors?
Direct peers on record are Sparx Systems (Enterprise Architect), Jama Software and Sodius (parent). Emerging players are Visure Solutions and Eclipse Capella. Broad incumbents are Aras, Dassault Systèmes (Cameo Systems Modeler / 3DEXPERIENCE), PTC, Siemens Digital Industries (Polarion, Teamcenter) and IBM Engineering (Rhapsody, DOORS, ELM).
Does Willert Software Tools have an API?
No public API is recorded for Willert Software Tools.
What industry is Willert Software Tools in?
Willert Software Tools's product category is Systems Engineering Software Tools. Its primary akta.pro industry code is BPAHAIAI, Systems Engineering & Technical Program Management, with a secondary code of HDAHAFAE, Embedded Software & Firmware Tools (Compilers, Debug, RTOS tooling). Its NAICS code is 541511 and its SIC code is 7371.