IES Ltd is an independent and privately owned GLP-certified contract research organisation (CRO) based near Basel in Switzerland. We support our international clients by offering scientific studies to not only ensure the safety of the tested products, but also to confirm that the products adhere to the applicable international environmental guidelines.


IES Ltd is highly experienced in conducting various kinds of metabolism studies, including the identification of unknown metabolites.

Ecotoxicology - Terrestrial

IES Ltd offers a complete spectrum of bee, NTA and NTP laboratory and field studies and is also specialised in conducting higher-tier studies.


IES Ltd's key expertise includes the entire spectrum of laboratory and higher-tier environmental fate studies, using radiolabelled and non-radiolabelled test items and substances.


The development and validation of analytical methods is the key to all complex studies. Analytical techniques such as TLC, HPLC, GC-MS and LC-MS/MS are standard.


IES Ltd’s scientists have extensive experience in designing and conducting non-GLP studies to provide environmental fate data on early-stage research and development compounds.

Ecotoxicology - Aquatic

IES Ltd conducts a wide range of studies in the area of aquatic ecotoxicology which are required for regulatory studies on industrial chemicals, agrochemicals, biocides, and veterinary and human pharmaceuticals worldwide.

Agenda 2019

26.02 – Microbiome Agbiotech, Raleigh NC

05.03 – China International Agrochemical & Crop Protection Exhibition, Shanghai

19.05 – IUPAC, Ghent

26.05 – SETAC Europe 29th Annual Meeting, Helsinki

25.06 – 21st International Fresenius AGRO Conference, Mainz

26.06 – ChemSpec Europe, Basel

25.08 – Annual meeting of the American Chemistry Society, San Diego, CA

08.09 – Eurotox, Helsinki

09.09 – CIR, Barcelona

24.09 – Swiss Green & Sustainable Chemistry Days 2019, Basel

21.10 – Annual Biocontrol Industry Meeting, Basel

23.10 – ICP-PR Workshop, Bern

05.11 – CPhI Worldwide, Frankfurt

12.11 – 10th International Akademie Fresenius Conference “Endocrine Disruptors”, Frankfurt

19.11 – BCPC Congress, Brighton

05.12 – 19th International Akademie Fresenius Conference “Aquatic and Terrestrial Ecotoxicology and Risk Management”, Cologne


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