How many employees work at HSL Compliance?

HSL Compliance Ltd. has 446 employees, according to Revelio Labs workforce intelligence data. The YoY growth rate is 1.8%.

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

About HSL Compliance

HSL Compliance are one of the leading companies in the legal compliance market and we are able to offer many specialist services. Our primary business activities are to support our customers in their compliance with relevant legal ACOPs and to protect their staff from hazardous materials or activities: • Legionella Risk Assessments and Risk Assessment Reviews • Monthly, Bi-Annual and Annual Water Quality Monitoring • Quarterly Shower De-Scales • Cleaning and Disinfection of Water Tanks and Distribution Systems • Installation, Maintenance and Management of Chlorine Dioxide Dosing Units • Water Tank and System Inspection and Remedial Works • Flushing • TMV Servicing and Maintenance • Electrical Works • Water Tank Replacements • Water Heater and Calorifier Replacement • City & Guilds Accredited Training • Highfield Accredited Training • IOSH Accredited Training • Asbestos Services • Management Surveys • Demolition Surveys • Re-Inspections • Consultancy • Specifications • Access Audits • Access Consultancy • Noise Assessments • Vibration Assessments • Air Monitoring • Hazardous Materials Surveys • Laboratory Analysis • Health and Safety Support • Fire Risk Assessments • Review and Improve Fire Safety • Fire Safety Consultancy • Fire Safety Training • Water Quality Testing* • 14 day Legionella analysis • 24 hours rapid Legionella analysis • Microbiological analysis • Chemical analysis • Metal analysis • Drinking water *All samples are secured and tested in accordance with current legislation. Technical Support and Consultancy We provide support in the form of our highly experienced technical management team, who are available to supply guidance and produce reports when required. We are also able to put our customers in contact with our consultants who are all experts within the water hygiene industry.

As of December 2025

HSL Compliance
workforce metrics

Headcount

446

Avg. Salary

$57k

Tenure

3.7yr

Growth Rate

1.8%

Hiring Rate

Attrition Rate

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Employee Headcount

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

  • HSL Compliance total number of employees in 2025 was 446, a 1.8% increase from 2024.
  • HSL Compliance total number of employees in 2024 was 438, a 4.2% increase from 2023.
  • HSL Compliance total number of employees in 2023 was 420, a 1.3% 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 HSL Compliance annual active job postings from 2023 to 2025.

  • HSL Compliance active job postings in 2025 was 58, a 141.2% increase from 2024.
  • HSL Compliance active job postings in 2024 was 10, a 62.1% decline from 2023.
  • HSL Compliance active job postings in 2023 was 19, a 62.1% increase from 2022.

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Employee Sentiment

Sentiment Topics

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