Occupational Hygiene & Exposure Monitoring
About LenExCo
LenExCo is a South African occupational hygiene consultancy focused on exposure monitoring, workplace health risk assessment, and regulatory-aligned compliance services for high-risk industries.
Established by experienced Occupational Hygienist Lené Niemand, the company was founded with a clear objective: to deliver technically sound, professional occupational hygiene services with a strong focus on service excellence, compliance integrity, and practical workplace risk management.
Today, LenExCo supports organisations across mining, manufacturing, engineering, construction, chemical, pharmaceutical, environmental, and industrial sectors with specialist occupational hygiene solutions designed to help businesses better identify, quantify, and manage workplace health risks.
Accreditation & Technical Recognition
LenExCo is approved by the South African National Department of Employment & Labour as an:
Approved Inspection Authority (AIA): Occupational Health and Hygiene
Facility Number: OH0239
The company is accredited in accordance with the internationally recognised ISO/IEC 17020:2012 standard as a Type A Inspection Body (IB) through the South African National Accreditation System (SANAS).
This accreditation reflects LenExCo’s commitment to technical competence, independent inspection integrity, and internationally aligned occupational hygiene practices.
Certification for download
![](https://www.lenexco.co.za/wp-content/uploads/2026/05/LenExCo-AIA-Certificate-2025-Type-A.jpg")
What We Specialise In
LenExCo operates with a focused approach to occupational hygiene and exposure monitoring services including:
Qualitative Occupational Hygiene Assessments
Risk-based workplace evaluations conducted to identify, assess and prioritise occupational health hazards, exposure profiles and potential employee health risks.
Quantitative Exposure Monitoring
Specialised exposure monitoring and measurement of physical, chemical, biological and ergonomic stressors using representative occupational hygiene methodologies aligned with regulatory and technical requirements.
Our services support technically sound workplace risk management, exposure compliance and occupational health decision-making.
Occupational Hygiene Support Across Diverse Workplaces
LenExCo supports organisations operating in technically demanding and compliance-driven environments across South Africa and neighbouring regions.
Services industries includes:
- manufacturing
- engineering
- food production
- warehousing / logistics
- construction
- utilities
- pharmaceutical
- petrochemical
- healthcare
- commercial environments
Protect Your Workforce with Specialist Occupational Hygiene Support
Meet the Founder
Lené Niemand
Founder & Director, LenExCo (Pty) Ltd
Lené Niemand is a Registered Occupational Hygienist (ROH) with the Southern African Institute for Occupational Hygiene (SAIOH), recognised by the International Occupational Hygiene Association (IOHA). She also holds a Legal Knowledge Certificate.
She has extensive experience leading occupational hygiene projects across South Africa and broader Africa, including work conducted in complex industrial and offshore environments.
Professional highlights include:
Former Chairperson of the SAIOH Gauteng Branch
Recipient of the SAIOH Top Achiever Award
SANAS technical signatory for occupational hygiene inspection activities
B.Sc. Honours Degree in Physiology with Occupational Hygiene major (Cum Laude)
- SANAS-accredited inspection capability
- Technical and regulatory competence
- Industry-specific experience
- Accurate exposure monitoring data
- Practical, compliance-aligned recommendations
- Independent inspection integrity
Our focus is on helping organisations make informed decisions that protect employee health while strengthening operational compliance.
Speak to an Occupational Hygiene Specialist
Whether you require exposure monitoring, workplace hygiene assessments, or support navigating occupational health compliance requirements, LenExCo provides specialist guidance grounded in technical expertise and industry experience.
Need support with occupational hygiene compliance or exposure monitoring?