We're civil engineers and software engineers who automate Civil 3D and Revit
Zeist builds C# plugins for Civil 3D and Revit, Dynamo scripts and training for BIM teams. We write the guides on this site and build its free tools.
Who we are
A mixed team: civil engineers who know how a plan set gets produced, and software engineers who know how to turn that workflow into software. That's why we talk about stations, sections, quantities and sheets, not just code.
We work from Trujillo, Peru, with engineering and construction firms across Latin America, and remotely with teams in Brazil, the United States and Europe.
How we work
- 01A free one-week diagnosis on one of your projects.
- 02A plugin ready in 4 to 8 weeks, tested on your own models.
- 03Your company owns the source code, with an installer, a manual and documentation.
- 04Updates with every new release of Revit, AutoCAD or Civil 3D.
What we do
Custom add-ins for Revit and Civil 3D
Plugin development in C# / .NET on Autodesk's official API. A dedicated toolbar button, an installer for the whole office, and version support.
Dynamo automation
Scripts and routines for modeling tasks, parametric geometry, and bulk processing. Fast to validate — ideal while the automation is still evolving.
BIM process audit
We measure where your team's hours actually go and hand you a prioritized plan: what to automate first, with which tool, and how much time you get back.
Courses and mentorship for BIM teams
Hands-on training in the Revit API, the Civil 3D API, and Dynamo — for teams that would rather build and maintain their own tools in-house.
What we publish
We publish what we learn: 41 technical guides in English and 5 free tools anyone can use without signing up.
Let's talk
Message us on WhatsApp or by email, or follow Zeist on LinkedIn.