ERP · head to head
Deltek vs Plex Manufacturing Cloud

Deltek
ERP
Project-based business management and accounting software
- From
- $1500/month
- Rated
- -
Plex Manufacturing Cloud
ERP
Multi-tenant manufacturing ERP with MES built in, owned by Rockwell Automation
- From
- $500/month
- Rated
- -
The short version
- Each has a real cost: Deltek not one product but a portfolio, including Costpoint, Vantagepoint, Maconomy, Ajera, ComputerEase, GovWin IQ and Replicon, so the right choice depends on the industry before the feature set; Plex Manufacturing Cloud there is no on premise option, so a plant whose line-side terminals must keep working through a network outage needs a mitigation plan, and connectivity becomes a production dependency rather than an IT concern.
- They diverge on capability: Deltek covers Project accounting, Plex Manufacturing Cloud covers Built-in MES.
- Prices and features above were last checked on 30 August 2026.
Where they differ
Only the attributes on which Deltek and Plex Manufacturing Cloud actually diverge.
| Attribute | Deltek | Plex Manufacturing Cloud |
|---|---|---|
| Starting price | $1500/month | $500/month |
| Platforms | Cloud, Web, Mobile | Cloud, Mobile, Web |
| Founded | 1983 | 1995 |
Identical on both: pricing model (subscription), free tier (No), user rating (Not yet rated), category (ERP).
What each one covers
Drawn from each product's published feature list. An absence here means we hold no record of it - not that the product lacks it.
Only in Deltek
- Project accounting
- Resource management
- Time and expense
- Financial reporting
- Government compliance
- Office 365
- Outlook
- Tableau
Only in Plex Manufacturing Cloud
- Built-in MES
- Quality management
- Lot and serial traceability
- Production scheduling
- Inventory and warehouse
- Supply chain and EDI
- Financials
- Single version delivery
What people use each for
The jobs each tool is most often brought in to do.
Deltek
- Government contracting project accounting and compliance managementnot Plex Manufacturing Cloud
- Aerospace and defense ERP with FAR/CAS requirementsnot Plex Manufacturing Cloud
- Architecture and engineering firm resource planning and billingnot Plex Manufacturing Cloud
- Construction cost tracking, labor management, and job costingnot Plex Manufacturing Cloud
- Professional services resource scheduling and utilizationnot Plex Manufacturing Cloud
Plex Manufacturing Cloud
- An automotive component supplier that must hold complete traceability and pass customer quality auditsnot Deltek
- A manufacturer replacing a separate ERP and MES pair that never reconcile with each othernot Deltek
- A multi-plant discrete manufacturer that wants one system of record across sites rather than one per plantnot Deltek
- An organisation that has repeatedly deferred an ERP upgrade and wants the upgrade problem removed from its futurenot Deltek
Where each one falls short
Documented limitations, not opinions. Every one is a constraint you would hit in normal use.
Deltek
- Not one product but a portfolio, including Costpoint, Vantagepoint, Maconomy, Ajera, ComputerEase, GovWin IQ and Replicon, so the right choice depends on the industry before the feature set
- Pricing is not published anywhere and requires contacting sales
- Built around project-based industries such as government contracting, architecture and engineering rather than general business
Plex Manufacturing Cloud
- There is no on premise option, so a plant whose line-side terminals must keep working through a network outage needs a mitigation plan, and connectivity becomes a production dependency rather than an IT concern.
- Every customer runs the same version on the vendor's schedule, so you cannot defer a release to fit around a plant shutdown or a customer audit and must absorb regression testing on the vendor's cadence.
- Customisation is limited to the platform's own configuration and extension tools, which is what makes the single version model possible but means a process you cannot express within those tools has to change rather than be accommodated.
- The financial modules are less developed than the operational ones, so groups with complex multi-entity consolidation, statutory reporting in several countries or sophisticated planning requirements often keep a separate finance system alongside it.
- Country localisations and language coverage are narrower than the tier one vendors offer, which limits the product for a manufacturer expanding into markets with demanding local tax and reporting rules.
Pricing, plan by plan
Deltek
$1500/month- Vantagepoint$1500/month
- Project accounting
- Professional services
- Resource management
- Vantagepoint Enterprise$3500/month
- Advanced features
- Multi-entity
- Advanced analytics
Plex Manufacturing Cloud
$500/month- Standard$500/month
- Core manufacturing
- Financials
- Inventory
- Enterprise$1500/month
- Advanced modules
- IoT integration
- Advanced analytics
Which should you pick?
Choose Deltek if
- You need project accounting.
- You work on Cloud, Web, Mobile.
- You also want resource management.
Choose Plex Manufacturing Cloud if
- You need built-in mes.
- You work on Cloud, Mobile, Web.
- You also want quality management.
Questions people ask
- Is Deltek or Plex Manufacturing Cloud better?
- Neither clearly leads. Deltek starts at $1500/month and Plex Manufacturing Cloud at $500/month, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
- Which is cheaper, Deltek or Plex Manufacturing Cloud?
- Deltek starts at $1500/month and Plex Manufacturing Cloud at $500/month.
- Does Deltek or Plex Manufacturing Cloud run on more platforms?
- Deltek runs on Cloud, Web, Mobile. Plex Manufacturing Cloud runs on Cloud, Mobile, Web.
- What is Deltek best used for?
- Deltek is most often used for government contracting project accounting and compliance management, aerospace and defense erp with far/cas requirements, architecture and engineering firm resource planning and billing, construction cost tracking, labor management, and job costing. Of those, government contracting project accounting and compliance management and aerospace and defense erp with far/cas requirements are not what Plex Manufacturing Cloud is typically brought in for.
- What can Deltek do that Plex Manufacturing Cloud cannot?
- Deltek covers Project accounting, Resource management, Time and expense, Financial reporting. Plex Manufacturing Cloud covers Built-in MES, Quality management, Lot and serial traceability, Production scheduling.
Answered from the vendors’ own pages
Deltek: How much does Deltek Costpoint cost?
Deltek does not display pricing for Costpoint or other products on its website. Enterprise ERP pricing requires contact with Deltek sales.
SourcePlex Manufacturing Cloud: Can I run Plex on my own servers?
No. It is delivered as multi-tenant cloud software only. If you need an on premise deployment, this product cannot meet that requirement at any price.
Deltek: What is the cost of Deltek Vantagepoint for architecture firms?
Deltek does not publish Vantagepoint pricing on its website. Pricing depends on firm size, employee count, and feature requirements.
SourcePlex Manufacturing Cloud: What happens to my customisations at upgrade time?
There are no customisations in the traditional sense. Extensions are built with the platform's own tooling and are carried forward by the vendor. That is the trade you are making: less freedom to modify, no upgrade project.
Deltek: Do Deltek cloud ERP solutions charge per user?
Deltek offers cloud ERP products but does not disclose per-user, per-month, or subscription rate information on its public website.
SourcePlex Manufacturing Cloud: Has Rockwell's ownership changed the product?
It has placed Plex inside a portfolio with Rockwell's automation, maintenance and analytics products, which pulls the roadmap towards integration with that estate. Whether that helps depends on whether your plant runs Rockwell equipment. Ask about the specific roadmap items you care about.
Plex Manufacturing Cloud: Is the finance module enough on its own?
For a single country manufacturer, usually yes. For a group consolidating several entities across countries with statutory reporting obligations, ask specifically about your requirements, because this is the part of the product most likely to fall short.
Related pages
More on Plex Manufacturing Cloud
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