How many employees work at Siers Groep Oldenzaal?

Siers Groep Oldenzaal BV has 691 employees, according to Revelio Labs workforce intelligence data. The YoY growth rate is 20.6%.

Data source: Revelio Labs Coverage: Global workforce Latest update: December 2025

About Siers Groep Oldenzaal

Since its founding, the family business Siers Groep Oldenzaal B.V. has grown into a professional and progressive organization. We carry out a very wide range of projects for our clients, from small to large and varying greatly in complexity. Siers is independently able to offer a complete package to its clients, from the customer's request to delivery, aftercare and warranty. The Siers Group Oldenzaal consists of the following companies, all specialists in their field. Siers Leiding-Montageprojekten Oldenzaal b.v. - Pipeline construction, cable laying, sinkers and water crossings, district and district heating, welding technology, pressing and horizontal drilling, public lighting. Siers Telecom B.V. - Cable television, Telematics, Fiber optic technology. Siers Installation Technology - Electrotechnical installations. Bopa - Lightning protection, overvoltage protection, equipotential bonding and earthing. Tablin Technical Advice Bureau - Technical consultancy in the field of geodesy, GIS, digital pipeline registration and detection. GeoAudit - Quality control of large-scale base maps, quality control of underground infrastructures, quality control of basic calculations.

As of December 2025

Siers Groep Oldenzaal
workforce metrics

Headcount

691

Avg. Salary

$53.4k

Tenure

5.0yr

Growth Rate

20.6%

Hiring Rate

Attrition Rate

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Employee Headcount

Interactive chart of Siers Groep Oldenzaal annual worldwide employee count from 2023 to 2025.

  • Siers Groep Oldenzaal total number of employees in 2025 was 695, a 20.6% increase from 2024.
  • Siers Groep Oldenzaal total number of employees in 2024 was 565, a 5.1% increase from 2023.
  • Siers Groep Oldenzaal total number of employees in 2023 was 537, a 0.2% increase from 2022.

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Employee Geographic Breakdown

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Employee Role Breakdown

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Employee Compensation

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Active Job Postings

Interactive chart of Siers Groep Oldenzaal annual active job postings from 2023 to 2025.

  • Siers Groep Oldenzaal active job postings in 2025 was 68, a 157.9% increase from 2024.
  • Siers Groep Oldenzaal active job postings in 2024 was 8, a 89.7% decline from 2023.
  • Siers Groep Oldenzaal active job postings in 2023 was 21, a 181.8% increase from 2022.

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Employee Sentiment

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