CLS offers the following services to the Consultants industry

Through CLS’s vast experience of industry and a wide range of analysis, CLS is the preferred choice of consultants for independent laboratory testing. CLS houses five state of the art laboratories, two of which are dedicated to Chemistry with the latest technology, a wide range of analysis, capabilities and a dedicated team of experienced employees.

Our Analytical and Environmental laboratories are the reason why CLS are specialists in customising chemical analysis, problem solving and compliance specification testing.


Sample range of analysis available from our Analytical Laboratory

  • Full range of raw material testing (API / Excipients – including cytotoxic drugs) in accordance with USP, BP, EP and JP
  • Batch release testing (chromatography, dissolution, spectroscopy, wet chemical analysis and physical testing)
  • Validation and subsequent routine monitoring of water systems
  • Analytical method validation as per ICH Guidelines
  • Process and Cleaning validation analysis
  • Storage of retain samples as per GMP
  • Oral dosage forms (tablets, capsules, sachets, liquids)
  • Injectables and Ophthalmics

CLS analytical laboratory’s leading technology offers a completely independent testing service to its clients including

  • Chromatography –(HPLC, TLC, GC)
  • Spectroscopy – (UV-Vis, FTIR)
  • Dissolution testing
  • Wet chemical techniques
  • Physical testing of tablets
  • Microbiological tests (Microbial limit test, Endotoxin, Bioburden)
  • Environmental Monitoring
  • Water testing as per USP /EP
  • Full generator and UPS back up


CLS performs an extensive range of environmental sampling followed by chemical and microbiological analysis in our INAB accredited testing laboratory Reg. No. 108T. CLS delivers a professional service in all aspects of environmental monitoring from IPPC, Waste and Discharge license requirements to air & noise assessments. We monitor in compliance with regulatory requirements at landfill and waste facilities and treatment plants. CLS performs flow & load surveys and has extensive knowledge and experience in sampling from surface water, groundwater and drinking water sources. CLS’s state of the art laboratories are fully equipped with all necessary infra-structure to store, handle and analyse large numbers of samples.

CLS’s environmental department has a team of experienced scientists divided into three divisions; the environmental laboratory based, analytical laboratory based and the team of dedicated sampling personnel who carry out large scale environmental sampling in accordance with ISO 5667 requirements and European legislation, nationwide. All sampling follows written procedures and is carried out in accordance with the requirements of our ISO 9001 certification.

Our Clients

  • Government Agencies, Local Authorities
  • Licence Holders (IPPC, Waste, Discharge) for more information click here
  • Environmental Consultants
  • Industry / Engineering Companies
  • Group Water Schemes

Please see our Environmental Monitoring page


CLS’s three remaining state-of-the-art laboratories are dedicated to our Microbiology Department,

  • Pharmaceutical
  • Food
  • Water


CLS offers cleanroom grading, validation, bio burden and LAL testing to our clients in the consultant industry.

For more information on CLS capabilities in the pharmaceutical industry click here


CLS offers a range of analysis on food including microbiology and environmental testing.

For more information on CLS capabilities in the food industry click here


CLS offers a range of analysis on water including microbiology and environmental testing.

For more information on CLS capabilities in the food industry click here

Pipe Sterilisation

In response to increased legislation and public awareness, pipe and tank sterilisation was established at CLS in 1998, utilising our vast experience in both microbiological and chemical analysis. CLS’s dedicated team of specialists liaises with our clients at every stage of the process, from Legionella Risk Assessments to analysis and interpretation of results.

Please see CLS Pipe Sterilisation page for more detail

Full details on services provided