Head-to-head · Plant Design Management Systems Software
AVEVA Unified Engineering (including E3D Design) vs OpenPlant Modeler
AVEVA Unified Engineering (including E3D Design) leads on 0 checks, OpenPlant Modeler on 0, and 6 are even. Who comes out ahead on the 6 yes/no, price and count checks where we have data for both products. The editor score weighs everything else too.
Our verdict
- Highest scoreAVEVA Unified Engineering (including E3D Design) · 9.4/10
- Most featuresAVEVA Unified Engineering (including E3D Design) · 5 of 5
AVEVA Unified Engineering (including E3D Design) scores higher on our rubric for plant design management systems software: 9.4 against 8.6 out of 10; our editors rank them #1 and #4.
AVEVA Unified Engineering (including E3D Design) is the better fit for enterprise multidisciplinary plant engineering. OpenPlant Modeler is the better fit for bentley users needing parametric plant modeling.
- AVEVA Unified Engineering (including E3D Design) fits best
Enterprise multidisciplinary plant engineering
- OpenPlant Modeler fits best
Bentley users needing parametric plant modeling
Advertiser disclosure: iTechGuides is reader-supported. Vendors can pay for top positions in our rankings and for a place on other products' pages, and we may earn a commission when you click some links. Bought places stand at the number bought; this page and our disclosure say so. Paying vendors may get a fuller, more detailed review from our editors, and that review can change their score. How we rank.
Side by side
| Feature | AVEVA Unified Engineering (including E3D Design) 9.4/10 Visit ↗ | OpenPlant Modeler 8.6/10 Visit ↗ |
|---|---|---|
| At a glance | ||
| Editor score | 9.4 | 8.6 |
| Ranking | #1 in Plant Design Management Systems Software | #4 in Plant Design Management Systems Software |
| Best for | Enterprise multidisciplinary plant engineering | Bentley users needing parametric plant modeling |
| Pricing model | Paid | Paid |
| Starting price | — | $5,839/yr |
| Free plan | — | — |
| Free trial | — | — |
| Deployment | Cloud, Self-hosted, Desktop | Desktop, Cloud |
| Platforms | Web, Windows | Windows |
| Support | Email, Live chat, Docs | Live chat, Community, Docs |
| Integrations | 10 integrations | 6 integrations |
| Built for | Mid-market, Enterprise | Small business, Mid-market, Enterprise |
| Features AVEVA Unified Engineering (including E3D Design) 5/5 · OpenPlant Modeler 0/5 | ||
| 3D model coordination | ✓ (best) | Not checked yet |
| P&ID authoring | ✓ (best) | Not checked yet |
| Isometric drawings | ✓ (best) | Not checked yet |
| Clash detection | ✓ (best) | Not checked yet |
| Document control | ✓ (best) | Not checked yet |
| Specs | ||
| Deployment | Hybrid | Not checked yet |
| Our review | ||
| Pros |
|
|
| Cons |
|
|
| Our verdict | For process-heavy capital projects, AVEVA Unified Engineering brings multidisciplinary design and project information into a shared environment. It centralizes 1D, 2D and 3D data, with AVEVA E3D Design for 3D plant design and intelligent… Read the review → |
OpenPlant Modeler is Bentley Systems’ Windows software for creating 3D plant designs. It is aimed at engineering firms, owner-operators, and project teams working on process, mining, water, wastewater, and power facilities. Parametric… Read the review → |
Strengths and trade-offs
AVEVA Unified Engineering (including E3D Design) — where it wins
- Centralizes 1D, 2D and 3D project data across disciplines
- Combines E3D design, P&ID authoring and clash identification
- Controls deliverable approvals, mark-ups, versions and changes
Where it doesn't
- Requires a sales conversation to determine pricing
- E3D Design is no longer sold as a standalone product
- Its broad project scope may exceed narrower design needs
OpenPlant Modeler — where it wins
- Models equipment, piping, HVAC, cable tray, and structural steel.
- Supports clash detection, point-cloud integration, and material reporting.
- Connects with PlantSight, iTwin, ProjectWise, and other Bentley tools.
Where it doesn't
- The displayed annual price is $5,839 per license.
- Runs on Windows rather than across multiple desktop platforms.
- Its workflow is centered on plant engineering, not general-purpose CAD.
- AVEVA Unified Engineering (including E3D Design)9.4/10 · Pricing on request
A broad plant engineering environment for coordinating design data, deliverables and teams.
Visit AVEVAFull verdict → - OpenPlant Modeler8.6/10 · Paid
A Windows plant modeler with broad discipline coverage and a high annual license price.
Visit BentleyFull verdict →
More comparisons
- AVEVA Unified Engineering (including E3D Design) vs Bentley Plant Design WorkSuite
- AVEVA Unified Engineering (including E3D Design) vs Hexagon CADWorx Plant Professional
- AVEVA Unified Engineering (including E3D Design) vs AutoCAD
- AVEVA Unified Engineering (including E3D Design) vs CADISON
- AVEVA Unified Engineering (including E3D Design) vs CADMATIC 3D Plant Design
- AVEVA Unified Engineering (including E3D Design) vs Engineering Base
- Bentley Plant Design WorkSuite vs OpenPlant Modeler
- Hexagon CADWorx Plant Professional vs OpenPlant Modeler
All plant design management systems software comparisons → · Full ranking →
Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026
Last updated · How we research and update






