Who sells to whom

Automation makers and plant-software makers sell through system integrators, who build each plant's control system.

1Controllersand controlsystems ↓Controllers for factories,control systems forrefineries, and drives.Rockwell AutomationYokogawaDelta Electronics2Systemintegrators ↓Firms that design a plant'scontrol system and install it.Base Automation3Plant software ↓Software that records everyreading and lets operators runthe plant.AVEVAVelotic Software4Securing and running the controllers ↓Factory network security, and the operating system inside machines.Forescout TechnologiesWind Rivercontrollersplantsoftware1Controllers and controlsystems ↓Controllers for factories, control systemsfor refineries, and drives.Rockwell AutomationYokogawaDelta Electronics2System integrators ↓Firms that design a plant's control systemand install it.Base Automation3Plant software ↓Software that records every reading andlets operators run the plant.AVEVAVelotic Software4Securing and running thecontrollers ↓Factory network security, and theoperating system inside machines.Forescout TechnologiesWind River

Box 1 makes controllers and control systems, and box 3 makes the software operators use to watch and record the plant. Both sell through box 2, which designs each plant's control system and installs it. Box 4 secures factory networks and makes the operating system inside many machines. Tap a title in the diagram to jump to its companies.

1

Controllers and control systems 3 companies

These companies make the controllers beside the machines and the control systems that keep a whole plant steady.

Rockwell Automation logoRockwell AutomationRockwell Automation, with engineers in Pune and Bengaluru, makes the Allen-Bradley controllers that run many American factories, and FactoryTalk, the software their operators use. Its Pune centre builds much of that software.Bengaluru · PuneHired recently
Yokogawa logoYokogawaYokogawa, the Japanese maker of control systems for refineries and chemical plants, builds its CENTUM control system and its plant software in Bengaluru.
Delta Electronics logoDelta ElectronicsDelta Electronics, with engineers in Bengaluru, makes drives, power supplies and automation equipment. A drive controls the speed of an electric motor.
The tech, explainedProgrammable logic controller (PLC)Distributed control system (DCS)Variable frequency drive (VFD)Industrial sensors
2

System integrators 1 company

A system integrator designs each plant's control system from the makers' equipment and software, and installs it.

Base Automation logoBase AutomationBase Automation, with engineers in Chennai, builds control systems for Indian plants and installs them.
3

Plant software 2 companies

These companies make the software through which operators watch and run a plant, and the database that records every reading in it.

AVEVA logoAVEVAAVEVA, now part of Schneider Electric, with engineers in Bengaluru and Hyderabad, sells the PI System, which records every reading in a plant with its time. It also sells Wonderware and other software through which operators run the plant.BengaluruHiring now
Velotic Software logoVelotic SoftwareVelotic Software, with engineers in Hyderabad, sells Proficy, factory software that was once part of GE.
The tech, explainedSCADAProcess historian
4

Securing and running the controllers 2 companies

These companies protect factory networks from attackers and make the operating system that a machine's controller runs on.

Forescout Technologies logoForescout TechnologiesForescout Technologies, with engineers in Pune, secures factory networks.See alsoNetwork security, firewalls and SASE
Wind River logoWind RiverWind River, with engineers in Bengaluru, makes VxWorks, the operating system inside many machines. It always responds within a fixed, very short time, which a machine's controller needs.See alsoEnterprise Linux and private cloud platforms
How it all worksIndustrial automationThousands of bottles an hour, a few people watching.
See how it works →

What's changing

The plant that runs itself.

AI models now propose how to run a whole plant, adjusting set points to save energy, produce more and reduce wear, and operators approve what they propose. The automation groups are rebuilding their software so that AI models can act in it, which makes keeping it secure a larger question.

Read moreDistributed control system (DCS)
← Check outEnterprise devices and professional AV equipmentNext in Manufacturing tech →CAD and PLM software
Elsewhere in Manufacturing tech:Manufacturing execution systems (MES)Predictive maintenance and industrial IoT platformsIndustrial machinery and roboticsConnectors and industrial sensorsOn-demand manufacturing and 3D printingAdvanced materials and specialty chemicalsBuilding technology and HVACHeavy equipment and farm machineryMachine vision and quality inspection

Companies: ingrid's company map. Hiring signals: postings feed of 5 Nov 2026.