How many employees work at Collen Construction?

Collen Construction Ltd. has 553 employees, according to Revelio Labs workforce intelligence data. The YoY growth rate is 21.9%.

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

About Collen Construction

Established in 1810 and trading as Collen Bros. until 1984, Collen Construction is one of the leading construction firms in Ireland, and we are extremely proud of our history and reputation for building quality and excellence. The company offers a full range of construction services including management contracting, design & build, joint venture/partnering and turnkey contracts. We have experience in various projects including data centres, residential, commercial, fit-out, educational, retail, leisure, health, pharmaceutical, industrial and conservation ranging in value from under €1 Million to in excess of €700 Million. We have longstanding relationships with numerous Clients and Consultants built up over the years ensuring the company has remained at the forefront of Irish Construction for two centuries. Our Client list is testament to the excellent service the company provides on every project.

As of December 2025

Collen Construction
workforce metrics

Headcount

553

Avg. Salary

$78.9k

Tenure

2.8yr

Growth Rate

21.9%

Hiring Rate

Attrition Rate

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Employee Headcount

Interactive chart of Collen Construction annual worldwide employee count from 2023 to 2025.

  • Collen Construction total number of employees in 2025 was 554, a 21.9% increase from 2024.
  • Collen Construction total number of employees in 2024 was 444, a 15.5% increase from 2023.
  • Collen Construction total number of employees in 2023 was 380, a 0.6% 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 Collen Construction annual active job postings from 2023 to 2025.

  • Collen Construction active job postings in 2025 was 11, a 92.7% decline from 2024.
  • Collen Construction active job postings in 2024 was 30, a 26.1% decline from 2023.
  • Collen Construction active job postings in 2023 was 39, a 131.9% increase from 2022.

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Employee Sentiment

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