Production Scheduling Software

SIMATIC IT Preactor APS

Production planning and scheduling software for manufacturers aiming at lean, agile operations

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About SIMATIC IT Preactor APS

Production planning and scheduling software with its roots in Preactor International, SIMATIC IT Preactor APS now comes through Siemens, where the name Opcenter APS also appears. Its users aim for lean and agile production, and the software is meant to organise their plans.

Planning and scheduling

The software covers two linked jobs. Production planning decides what each part of a factory should make and when. Scheduling then builds detailed schedules for the factory's resources, so that people, machines and materials are used in a sensible order.

Reach and results

Preactor International described itself as the world leader in production planning and scheduling software, with use by more than 4,000 organisations of many types around the world. It also said that case studies showed a return on investment measured in months, sometimes weeks, after installation. These are the vendor's own claims, and no current figures were available.

Accredited professionals

A network of more than 1,000 accredited professionals works closely with users, which the company presents as a way of making sure each company's particular requirements are met. Customers therefore deal with trained practitioners and not only with the software.

Siemens context

The product now sits within the Siemens software range, which is organised by industry, including aerospace, automotive, electronics, energy, heavy equipment and industrial machinery.

TrustList summary

SIMATIC IT Preactor APS is production planning and scheduling software, originating with Preactor International and now offered through Siemens. Manufacturers use it to plan work for lean and agile production.

Features

Production planning: plans what each part of the factory should make and when.
Scheduling: builds detailed schedules for factory resources.
Accredited professionals: a network of more than 1000 trained people works with users to match their needs.

Clients

Manufacturers in many sectors. The vendor says more than 4000 organisations of different kinds use Preactor, and reports payback measured in months or sometimes weeks in its case studies.

Key facts

Vendor: Siemens, which took on Preactor International
Sectors served by Siemens: aerospace, automotive, electronics, energy, heavy equipment, machinery and marine, among others

Summary written by TrustList from the business's own published information, Nov 2026.

Gallery

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SIMATIC IT Preactor APS rankings

SIMATIC IT Preactor APS is ranked on 2 TrustList rankings: #21 on 1 and #32 on 1, across 2 categories.

Every ranking orders its listings by their reviews, how complete the profile is and the Trust Score. SIMATIC IT Preactor APS has no reviews yet and 3 of the 10 profile details we look for. Where no listing on a page has been reviewed, the order follows the profiles alone.

Supply chain management software · 1 ranking

#21of 49
Supply chain management software
It is one of 4 here listing transportation management and one of 5 here listing sales & operations planning.
Of the 49 here, 45 also cover inventory management and 40 also cover order management.
Behind Infor CloudSuite Industrial (SyteLine), ahead of RentalMan.

Purchase order management software · 1 ranking

#32of 111
Purchase order management software
It is one of 5 here listing demand planning and transportation management.
Of the top 70 here, 45 also cover inventory management and 40 also cover order management.
Behind PyanGo, ahead of Futura ERS.

As of 2026-11-14. Organic ranks only; sponsored placements are never ranks. How TrustList ranks