How many employees work at Hazen & Sawyer?

Hazen & Sawyer PC has 2,391 employees, according to Revelio Labs workforce intelligence data. The YoY growth rate is 16.4%.

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

About Hazen & Sawyer

Since 1951, Hazen and Sawyer has focused on two things: providing safe drinking water and controlling water pollution. Our range of services encompasses the planning, design, and construction management of water and wastewater-related projects – from clean water treatment, storage, and distribution to wastewater and stormwater collection, treatment, and reuse. Our focus brings us exceptional challenges – such as the largest drinking water UV disinfection installation in the world, upgrade of major wastewater treatment plants to reduce nutrient discharges to sensitive receiving waters, and recharging vital drinking water aquifers with highly-treated wastewater effluent, renewing a valuable resource. Our focus also makes us home to many of the world’s most knowledgeable and experienced environmental engineers and scientists, each seeking a challenging and rewarding career while making an important contribution to the communities in which we work. Our expert process groups contribute to the latest research and determine how to apply the most effective and efficient technologies to engineer solutions to your challenges. Your goals are our goals, and we offer the insight and experience needed to achieve and exceed them. If you have a water engineering challenge, Hazen and Sawyer has your solution.

As of September 2025

Hazen & Sawyer
workforce metrics

Headcount

2.4k

Avg. Salary

$122k

Tenure

4.8yr

Growth Rate

16.4%

Hiring Rate

Attrition Rate

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Employee Headcount

Interactive chart of Hazen & Sawyer annual worldwide employee count from 2023 to 2025.

  • Hazen & Sawyer total number of employees in 2025 was 2,330.773, a 16.4% increase from 2024.
  • Hazen & Sawyer total number of employees in 2024 was 2,012.098, a 13.5% increase from 2023.
  • Hazen & Sawyer total number of employees in 2023 was 1,752.78, a 14.0% 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 Hazen & Sawyer annual active job postings from 2023 to 2025.

  • Hazen & Sawyer active job postings in 2025 was 945, a 2.1% decline from 2024.
  • Hazen & Sawyer active job postings in 2024 was 952, a 9.8% increase from 2023.
  • Hazen & Sawyer active job postings in 2023 was 863, a 3.7% increase from 2022.

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Employee Sentiment

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