Company
Between software and application
We are neither a classic engineering firm nor a pure software house, but the interface between the two: we support AutoCAD Plant 3D and all downstream disciplines – with the perspective of an engineer who has to deliver projects with the software. Our foundation is our training offering and optimal use in the project: preconfigurations of all kinds, right up to programmed customizations.
Our mission
The interface between software and application – from the user's point of view.
"A software house with an engineer's perspective" sounds like a contradiction – and that is exactly our concept. A software house thinks from the software outward, an engineering firm from the project. We do both at once: we configure, develop and program like a software house, and make our decisions like engineers who have to design plants with the result themselves. The outcome is software that delivers in the project – and project work that truly makes the most of the tool.
An engineering firm designs plants – a software house sells and supports software. We stand in between: we know AutoCAD Plant 3D from the inside (configuration, database, catalogs, programming) and everyday project work from the outside (deadlines, standards, disciplines, approvals). That's why we set up the software the way users need it in the project.
Our foundation is our training offering and optimal use in the project: preconfigurations of all kinds, right up to programmed customizations.
Train
Autodesk Authorized Training Center: classroom training, video courses, technical literature and a learning path from user to project manager.
Preconfigure
Project templates, piping specs, catalogs, title blocks, reports and isometric settings – set up the way your project requires.
Customize & program
Automation, scripts and extensions where the standard ends – for Plant 3D and the downstream disciplines.
Use in your project
Rollout, support, project support and as-built data via laser scan – until the software delivers in your project.
More about us
History
From ACPlant in 2002 to Contelos-Seitz Consulting in 2024
Team
Engineers, technicians and CAD specialists
References
Testimonials from customers in plant engineering and industry
Partners
Autodesk, Contelos, auxalia, FARO, e4e and others
Careers
Jobs and unsolicited applications in plant engineering
News & newsletter
News, events and newsletter
Who we work for
First understand the task in the project, then set up the software to match.
Plant builders & designers
Use Plant 3D and P&ID productively – with templates, piping specs and training from a single source.
Operators
Capture existing plants, keep documentation up to date, plan modifications.
CAD administrators
Configuration, database, catalogs and automation – knowledge you won't find in the manual.
Engineering firms
Handle project peaks, adopt standards, train teams.

Before you go …
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