Complete Laboratory Solutions

About Us

Number of employees

Years in business

Clients serviced

Recommendation rate


We’ve helped over 600 businesses with 500k+ tests

Founded in 1994, CLS is the highest accredited contract laboratory in Ireland, providing onsite sampling, testing, and a laboratory workforce consisting of colleagues who have been trained in CLS’s own labs in QC and QA. CLS partners with companies in the MedTech, Pharmaceutical, Clinical, Environmental, and Food & Beverage sectors.

We have dedicated facilities in Galway City for servicing GMP and Medical clients, Connemara for Environmental and Food & Beverage clients, and a third facility in Dublin to support all of our operations.

Currently, CLS is active on 22 sites across Ireland. Many clients choose to work with us alongside their direct hires to support headcount and ensure sustainability.

Accreditations include ISO 9001, ISO 17025 (108T), and ISO 15189 (400MT). We are also GMP licensed by the Health Products Regulatory Authority (HPRA) and the U.S. Food and Drug Administration (FDA).

Quality & Accreditations

The CLS group of laboratories has the accreditation’s and approvals required to allow us to work in partnership with our clients.

Expert Staff

Our people and their expertise is our most valuable asset. We have a complimentary mix of qualified laboratory analysts with the support of our quality, HR, logistics, finance and IT departments.

results REPORTING 24/7

Our Laboratory Information Management System (LIMS) provides our Enterprise Resource Planning System (ERP) results of tests online. Clients can securely download their results and trend their data and or apply limits for compliance. The system complies with GAMP guidelines and FDA 21 CFR part 11.

Sample collection

We collect anywhere in Ireland, offer controlled temperature transport if required, provide a full chain of custody and manage this area completely for our clients.

Onsite Analysts on Contract

We supply fully trained microbiology and analytical analysts to clients on contract and support the contracts by ongoing visits to support both our analysts and management of the host company.

Managed Service Solutions

We provide tailored managed solutions with the flexibility to outsource client requirements to CLS laboratories or insource services on client sites. Our solutions support clients in advancing new projects, meeting compliance requirements and fulfilling expert resource needs.

Our mission

We empower our clients to make the right business decisions based on the data we produce, expertise and experience of our team; always delivered on time and to the highest standards of compliance. We place a high value on relationships, striving always to improve lives through integrity without compromise.

Our values

Respect. Honesty. Helpfulness. Positivity driven by an entrepreneurial spirit.

CLS Leadership Team

Management team

Meet CLS executive team responsible for the strategic direction of the organisation.

CLS Social Responsibility

Giving back

We care passionately about our staff and the communities, and we take every opportunity to engage in local and national initiatives.

CLS Social Responsibility

Awards & Accreditations

We take pride in always delivering the highest standards of quality to our clients.

CLS Leadership Team

Educational Awards

Supporting our next generation of scientists and celebrate their commitment to their studies

Client Testimonials

We set out a programme of testing based on food safety analysis on water and food samples, personnel and hygiene swaps in the restaurants. CLS technically manage the programme for us. They go around to all the stores and take our samples and feed the results back to us then within a week or so.


Brian Malone, Food Safety Manager

We have 121 stores nationwide and CLS audit our stores twice a year and do microbiological testing on everything from countertop surfaces to hand personnel swaps to food samples. Their services are probably quite unique and they provide a one-to-one account manager. Their personnel are always very friendly and very professional to deal with.


Rob McEvoy, Food Safety Manager

CLS have been working with us for over 10 years and they provide us with a number of different services. This would include pre processing of shellfish samples and also the microbiological testing of shellfish. CLS also have a very high-quality standard and they work to the same kind of standards as ourselves.

Marine Institute Ireland

Joe Silke, Shellfish Safety Section Manager

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