The Big 4 that own most AEC software
In the buildingtech.pro catalog, Autodesk, Bentley, Nemetschek, and Trimble control 92 cataloged products across design, engineering, construction, and operations. This page is the answer-first ownership hub: each section shows the current cataloged product count, the acquisition trail already recorded in the catalog data, and direct links into the owner company page and product pages.
Autodesk
33 cataloged tools
Acquisition timeline
- MaintainX (May 2026, $3.6B) Source
- Rhumbix (Dec 2025) Source
- Payapps (Feb 2024, $390M) Source
- Innovyze (Dec 2020, $1B) Source
- ProEst (Dec 2020) Source
Owned products in this catalog
- AutoCAD parent page
- AutoCAD Architecture parent page
- AutoCAD Electrical parent page
- AutoCAD LT parent page
- AutoCAD Map 3D parent page
- AutoCAD MEP parent page
- AutoCAD Plant 3D parent page
- Autodesk 3ds Max parent page
- Autodesk Assemble parent page
- Autodesk BuildingConnected parent page
- Autodesk Civil 3D parent page
- Autodesk Construction Cloud parent page
- Autodesk Docs (Forma Data Management) parent page
- Autodesk Dynamo parent page
- Autodesk Flow Studio parent page
- Autodesk Forma Build (formerly Autodesk Build) parent page
- Autodesk Forma Design Collaboration (formerly BIM Collaborate Pro) parent page
- Autodesk Forma Site Design parent page
- Autodesk Forma Takeoff parent page
- Autodesk Fusion parent page
- Autodesk InfoWater Pro parent page
- Autodesk InfoWorks ICM parent page
- Autodesk InfraWorks parent page
- Autodesk Inventor parent page
- Autodesk Maya parent page
- Autodesk Navisworks Manage parent page
- Autodesk ReCap Pro parent page
- Autodesk Revit parent page
- Autodesk Revit LT parent page
- Autodesk Tandem parent page
- Autodesk Vault parent page
- MaintainX parent page
- Payapps parent page
Bentley Systems
25 cataloged tools
Acquisition timeline
- Talon Aerolytics (Jan 2026) Source
- Cesium GS (Sep 2024) Source
- EasyPower (Feb 2023) Source
- ADINA R&D (Mar 2022) Source
- Power Line Systems (Jan 2022) Source
- Seequent Holdings (Mar 2021, $1.1B) Source
- SYNCHRO Software (Jun 2018) Source
Owned products in this catalog
- AssetWise ALIM parent page
- Bentley GenerativeComponents parent page
- Bentley LumenRT parent page
- Bentley OpenBridge Designer parent page
- Bentley OpenBuildings Designer parent page
- Bentley OpenFlows HAMMER parent page
- Bentley OpenFlows SewerGEMS parent page
- Bentley OpenFlows StormCAD parent page
- Bentley OpenRail Designer parent page
- Bentley OpenRoads Designer parent page
- Bentley WaterGEMS parent page
- GeoStudio parent page
- iTwin Capture parent page
- iTwin Platform parent page
- Leapfrog Works parent page
- MicroStation parent page
- OpenCities Planner parent page
- OpenGround parent page
- OpenSite Designer parent page
- PLAXIS parent page
- ProjectWise parent page
- ProStructures parent page
- RAM Structural System parent page
- STAAD.Pro parent page
- Synchro (Bentley) parent page
Trimble
15 cataloged tools
Acquisition timeline
- Document Crunch (Mar 2026) Source
- Flashtract (Apr 2024) Source
- Ryvit (Dec 2022) Source
- SketchUp (from Google) (May 2012) Source
Owned products in this catalog
- Quadri (Novapoint) parent page
- SketchUp parent page
- Stabicad parent page
- Tekla EPM (PowerFab) parent page
- Tekla Structural Designer parent page
- Tekla Structures parent page
- Tekla Tedds parent page
- Trimble Business Center parent page
- Trimble Connect parent page
- Trimble e-Builder (Unity Construct) parent page
- Trimble ProjectSight parent page
- Trimble RealWorks parent page
- Trimble Viewpoint Spectrum parent page
- Trimble Viewpoint Vista parent page
- Trimble WinEst parent page
Nemetschek Group
19 cataloged tools
Acquisition timeline
Owned products in this catalog
- Allplan Architecture parent page
- Allplan Civil (Bridge) parent page
- ALLPLAN Precast parent page
- Archicad parent page
- BIMPLUS parent page
- Bluebeam Revu parent page
- DDScad parent page
- dRofus parent page
- FRILO parent page
- GoCanvas parent page
- Maxon Cinema 4D parent page
- NEVARIS Build parent page
- RISA-3D parent page
- RISAFloor parent page
- SCIA Engineer parent page
- Solibri parent page
- Spacewell Workplace parent page
- Vectorworks Architect parent page
- Vectorworks Landmark parent page