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Head-to-head · Plant Design Management Systems Software

AVEVA Unified Engineering (including E3D Design) vs OpenPlant Modeler

  • Updated Oct 2026
  • Both researched from official sources
  • 6 checks side by side

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
  • 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
  • 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.
Cons
  • 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
  • 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.
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 →
  1. AVEVA Unified Engineering (including E3D Design)Plant Design Management Systems Software 9.4Pricing on request
  2. OpenPlant ModelerPlant Design Management Systems Software 8.6Paid

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

Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026

Last updated · How we research and update