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Prometheus Group vs MaintWiz: STO Turnaround Software Compared
Prometheus Group sells STO Manager, an enterprise shutdown, turnaround and outage suite that sits on SAP, IBM Maximo or Oracle with Primavera P6 for the schedule. MaintWiz runs the shutdown inside its CMMS: the stop shares work orders, spares and ePTW permits with routine maintenance and starts from an Excel or Microsoft Project task list. Both cover scope, schedule and cost; MaintWiz adds readiness gates with signed waivers and field checklists on the same record.
How MaintWiz helps: MaintWiz runs the shutdown inside the same platform as routine maintenance, so findings, spares and permits flow without a separate stack to integrate.
By Jai Balachandran · Technical review: Murali Nerur Pasupathy · Published · Last reviewed
What MaintWiz adds:Critical path and floatReadiness gatesPermits and isolationsSpares status with SAP
At a glance
How does MaintWiz compare with Prometheus Group?
Facts from Prometheus Group's public pages first, then where MaintWiz is the choice for your stop.
Compared on public information read on 30 October 2026
What Prometheus Group's public pages describe
- STO Manager sits on SAP PM, S/4HANA, IBM Maximo or Oracle EAM, with that ERP as the system of record.
- Planning and shift handover reports are built around a live Primavera P6 schedule.
- A DSO engine optimises crews, equipment and permit windows; ePAS permitting and contractor management are separate modules.
- The vendor names refining, chemical and power customers and prices by annual subscription, per user or per site.
What both describe
- Scope freeze, work packs, budgets and progress tracking on one stop.
- Spares status linked to SAP requests and orders.
- A Primavera P6 schedule in use for the stop (MaintWiz through interoperability).
Choose MaintWiz when
- Work orders, spares, ePTW and PM history already live in the MaintWiz CMMS and the stop should share them.
- There is no Primavera P6 estate and you would rather build the critical path natively from Excel or Microsoft Project XML.
- Mid-size or multi-plant manufacturing needs a quick start and a written quote by users and sites.
- Technicians should close checklists with readings and photos that update the plan, with readiness gates and signed waivers.
Comparison
How do Prometheus Group and MaintWiz compare area by area?
Public information on Prometheus Group comes from its solution and pricing pages and a 2026 third-party guide.
| Area | Prometheus Group (public information) | MaintWiz |
|---|---|---|
| Scope and work packs | Scope templates, change tracking and scope freeze; AI-ranked work-package templates1 | Scope baselines that show what moved; an AI scope agent groups requests and proposes the scope for the planner to approve |
| Scheduling | Planning and scheduling built around live Primavera P6 with shift handover reports; a DSO engine optimises crew, equipment and permit-window conflicts and writes updates to P61,3 | Native Gantt with critical path, float, baselines, critical chain analysis and what-if scenarios; Monte Carlo confidence of finish |
| ERP and CMMS links | Names SAP, IBM Maximo and Oracle ERPs with P61; a reviewer lists SAP PM, S/4HANA, Maximo and Oracle EAM3 | SAP integration in PM or MM mode with the request or order behind each short part; shares work orders and spares with the MaintWiz CMMS |
| Permits | A separate ePAS electronic permitting module1,3; the NiSoft permit-to-work business was acquired in December 20255 | ePTW permits and isolations on each work order, blocking close while open |
| Readiness | Scope freeze and change tracking are listed; readiness gates with signed waivers are not described on the public solution page1 | Readiness gates configured to your requirements, with waivers recorded by name, reason and date |
| Field execution | Real-time progress from the field; the Webalo frontline platform was acquired in January 20261,5 | Checklists with ticks, readings and photos, QR scan, offline on transaction screens |
| AI | AI-guided setup and template suggestions; Actenum (AI scheduling optimisation) was acquired in December 20251,5 | AI agents for scope, estimates, schedule review, daily summaries and lessons, each with a named approver |
| References | Names Exxon, Covestro, Marathon, Constellation Energy, BP Helios, Talen Energy and Gunvor1 | Case studies from tyre and paint manufacturing; see the case studies page |
| Pricing | Annual subscription, per user or per site, typically three-year terms; no figures published2 | A written quote for your users, sites and modules, requested at a demo |
The rival
What is Prometheus Group?
Prometheus Group is an enterprise asset-management software company in Raleigh, North Carolina, and sells shutdown, turnaround and outage management as STO Manager within its Prometheus-AI Platform.
STO Manager covers scope control, work packs, budgeting, material look-aheads, isolations, progress and contractor access, and sits on top of SAP, Maximo or Oracle with Primavera P6 for the schedule1. Optimisation and permitting come as related modules3.
- Owner: Genstar Capital has held a majority since 2019; Advent International and Leonard Green & Partners agreed to buy a partial stake in June 20244.
- Related products named on the vendor page: GWOS-AI, RapidAPM, ePAS, Contractor Management, RiskPoynt and Mobile EAM1.
- Acquisitions reported between December 2025 and January 2026: Actenum (scheduling optimisation), NiSoft (permit-to-work) and Webalo (frontline workforce platform)5.
- Roser ConSys, the maker of earlier STO applications for scope, work packs and scheduling, was acquired in December 20196.
- The hosting model for STO Manager is not stated on the pages we read2.
MaintWiz
What does the MaintWiz shutdown module include?
The module covers the schedule, readiness, permits, spares, field work and cost in one plan, with AI agents that propose and people who approve.
The shutdown and turnaround module plans, prepares, executes, controls and closes the stop in one system with the MaintWiz CMMS.
- Gantt chart with critical path, float, baselines and a float flag
- Critical chain analysis and what-if scenarios on the live plan
- Monte Carlo confidence of finish and the drivers of the forecast finish
- Readiness gates configured to your requirements, with signed waivers
- Permits and isolations from ePTW on each work order
- Spares status with the SAP request or order behind each part
- Technician checklists with readings, photos and findings to the planner
- AI agents for scope, estimates, schedule review, daily summaries and lessons
See the shutdown and turnaround module · AI shutdown planning
Moving a stop
How do you move a stop to MaintWiz?
Start with one stop: load last stop's task list and see the plan on your own data.
Move one stop to MaintWiz from the task list you already have, and see scope, schedule, permits and spares in one plan.
- 1
Import
Bring last stop's task list as Microsoft Project XML or Excel.
- 2
Compare
Check the critical path and float in MaintWiz against your current plan.
- 3
Pilot
Run one stop in MaintWiz and review status daily with planners and supervisors.
- 4
Scale
Move the next stops and train planners, supervisors and technicians.
FAQ
Frequently asked questions
How does MaintWiz compare with Prometheus Group for a refinery turnaround?
Prometheus Group sells STO Manager on top of SAP, Maximo or Oracle with Primavera P6, with optimisation and permitting as separate modules.1,3 MaintWiz runs the turnaround in the CMMS itself, so scope, readiness gates, ePTW permits, spares status and field checklists share one record with routine maintenance.
Does Prometheus Group work with Primavera P6?
Yes. The vendor builds planning and shift handover reports around the live P6 schedule and an optimisation engine writes updates back to P6.1,3
Does MaintWiz replace Primavera P6 when I use Prometheus Group?
No. MaintWiz has its own Gantt and works with P6 through interoperability, so teams can keep P6 where they use it.
What does Prometheus Group cost?
The vendor does not publish prices. It describes an annual subscription, per user or per site, usually on three-year terms.2 MaintWiz gives a written quote by users, sites and modules at a demo.
Does MaintWiz have electronic permit to work?
Yes. ePTW permits and isolations sit on each work order, and the work order cannot close while a permit is open.
Who owns Prometheus Group?
Genstar Capital has been the majority owner since 2019, and Advent International and Leonard Green & Partners agreed a partial stake in June 2024.4
Sources
Sources
Vendor pages, a third-party guide and press releases read on 30 October 2026. Check each vendor's current material before you decide; products change.
- Prometheus Group, Shutdown, turnaround and outage solution
- Prometheus Group, Pricing
- Reliable, Best shutdown, turnaround and outage (STO) software: guide to the main vendors (2026)
- Simpson Thacher, Genstar to sell partial stake in Prometheus Group to Advent International and Leonard Green & Partners (5 June 2024)
- Business Wire, Prometheus Group acquires Webalo (14 January 2026; the Actenum and NiSoft deals are reported in the same period)
- DCP, Prometheus Group acquires Roser ConSys (2 December 2019)
See your own shutdown plan in MaintWiz
Book a demo and bring last stop's task list. We will load it next to your current tool so you can compare the critical path, the gates and the daily view on your data.