How many employees work at ESR?

Institute of Environmental Science & Research Ltd. has 513 employees, according to Revelio Labs workforce intelligence data. The YoY growth rate is -6.4%.

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

About ESR

Keeping People Safe and Healthy through Science ESR (The Institute of Environmental Science and Research) is a Crown research institute that delivers world-class knowledge, research and laboratory services to help the New Zealand Government get the most out of its investment in science and innovation. We use the power of science to help our partners and clients solve complex problems and protect people and products in New Zealand, and around the world. It’s our science that lies behind the decisions that safeguard people’s health, protect our food-based economy, improve the safety of our freshwater and groundwater resources and provide the justice sector with expert forensic science. Our staff bring a wealth of different experiences and backgrounds to deliver this expertise. You can find out more about careers at ESR and the jobs on offer at our dedicated careers site: https://nzcris.wd3.myworkdayjobs.com/nzcris

As of December 2025

ESR
workforce metrics

Headcount

513

Avg. Salary

$69.5k

Tenure

5.9yr

Growth Rate

-6.4%

Hiring Rate

Attrition Rate

For even more metrics data,
reach out to our sales team.

Contact Sales

Employee Headcount

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

  • ESR total number of employees in 2025 was 511, a 6.4% decline from 2024.
  • ESR total number of employees in 2024 was 544, a 2.2% decline from 2023.
  • ESR total number of employees in 2023 was 556, a 0.1% increase from 2022.

Would you like to see the latest employee headcount data?

Contact Sales

Employee Geographic Breakdown

Would you like to see the latest employee geographic data?

Contact Sales

Employee Role Breakdown

Would you like to see the latest employee role breakdown data?

Contact Sales

Employee Compensation

Would you like to see the latest employee compensation data?

Contact Sales

Active Job Postings

Interactive chart of ESR annual active job postings from 2023 to 2025.

  • ESR active job postings in 2025 was 0, a 200.0% decline from 2024.
  • ESR active job postings in 2024 was 1, a 160.0% decline from 2023.
  • ESR active job postings in 2023 was 9, a 200.0% increase from 2022.

Would you like to see the latest active job postings data?

Contact Sales

Employee Sentiment

Sentiment Topics

Contact Sales
Contact Sales
Contact Sales
Contact Sales
Contact Sales
Contact Sales
Contact Sales
Contact Sales
Contact Sales
Contact Sales
Contact Sales
Contact Sales
Contact Sales
Contact Sales
Contact Sales
Contact Sales
Contact Sales
Contact Sales
Contact Sales
Contact Sales

Would you like to see the latest employee sentiment data?

Contact Sales