We strive for operational excellence.

Towards world-class manufacturing

Efficient and well organized Operations are essential for us at Ensto to exceed our customers' expectations. It is not enough to improve things once. Improvement in business needs to be seen as a continuous effort.

Ensto Operational Excellence (EOX) program was launched back in 2010 to strive Ensto Operations towards world-class manufacturing with the set of selected Lean Management initiatives. The journey has not ended: we have defined world-class manufacturing at Ensto as continuous improvement in quality, efficiency, delivery capability and flexibility.

One of the most important aspect of the EOX is the empowerment and involvement of our people. Respect and building people are at the heart of EOX. Every person working on all levels of the organization are contributing and giving their valuable input for the EOX on daily basis. This also means that everyone is working towards the world-class manufacturing and supporting Ensto’s strategic targets.

In order to achieve our goals, we use a selected set of LEAN-initiatives:


A method for organizing workplaces, a base for continuous improvement and our "visiting card".

War Room

A core method for continuous improvement.


A signalization method for an immediate response regarding process or quality issues.

Ensto Equipment Effectiveness

A method for improving the effective use of machines: Shortening setup times, decreasing cycle times, and eliminating machine downtimes.

Preventive Maintenance

A method for reducing machine failures.


The basic steering method for the main material flows. Replenishments are made against a real demand from the downstream.

Ensto Plants

Keila, Estonia

  • Personnel: ~ 220
  • Production area: 10,000 m²
  • Focus: Automated assembly of final products and silicone injection moulding
  • Manufacturing of:
    • Underground networks cold shrink accessories
    • Final assembly of overhead and underground products

Porvoo, Finland

  • Personnel: over 100
  • Production area: 15,600 m²
  • Focus: Component manufacturing and highly automated assembly
  • Manufacturing of: 
    • Metal components and surface treatment (electroplating)
    • Underground network heat shrink accessories
    • Connectors for overhead line networks

Bagnères-de-Bigorre, France

  • Personnel: ~ 70
  • Production area: 3,500 m²
  • Manufacturing of:
    • MV Load Break SF6 Switches
    • MV surge arresters

Villefranche-sur-Saône, France

  • Personnel: ~ 110
  • Production area: 11,000 m²
  • Manufacturing of:
    • LV distribution panels
    • LV circuit breakers
    • MV Air switches
    • Control command
    • Fault passage indicators

Delhi, India

  • Personnel: ~ 30
  • Production area: 4,000 m²
  • Focus: Multiple products assembly
  • Manufacturing of:
    • Overhead and underground products
    • Final assembly of wide range of products

Dunboyne, Ireland

Ensto DSO

  • Personnel: ~ 20
  • Production area: 930 m²
  • Focus: Design, manufacture, final assembly and testing of low voltage products for the utility industry
  • Manufacturing of:
    • LV distribution panels
    • LV pillars
    • EV distribution panels
    • Overhead fuse switch & cut outs

Cormano, Italy

  • Personnel: ~ 5
  • Production area: 600 m²
  • Focus: Specific cold shrink products to Italian markets
  • Manufacturing of:
    • Cold shrink technology products for utility network construction materials

St. Petersburg, Russia

  • Personnel: ~ 40
  • Production area: 1,200 m²
  • Focus: Multiple products assembly
  • Manufacturing of:
    • Overhead line products
    • Voltage boosters assembly
    • Metal products assembly