IES Ltd is an independent and privately owned GLP-certified contract research organisation (CRO). 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.


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.

Aquatic Ecotoxicology

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.

IES Agenda 2018

Homing flight ringtest meeting
Paris, 17-18 January

ICP-PR Non-Apis Workshop
York, 28 February – 1 March

SOT 57th Annual Meeting and ToxExpo
San Antonio, 11 – 15 March

Pollination Group Symposium
Berlin-Dahlem, 16 – 20 April

SETAC 28th Annual Meeting
Rome, 13 – 17 May

20th International Fresenius AGRO Conference – Behaviour of Pesticides in Air, Soil and Water

Mainz, 18 – 19 June

Chemspec Europe
Cologne, 20 – 21 June

Brussels, 2 – 5 September

CIR 2018
Barcelona, 5 – 6 September

IOBC Zadar 2018 „Pesticides and Beneficial Organisms“
Zadar, 30 September – 4 October

Annual Biocontrol Industry Meeting (ABIM)
Basel, 22 – 24 October

French Society of Toxicology Congress (Congrès de la SFT)
Lille, 27-28 November

18th International Fresenius ECOTOX Conference „Aquatic and Terrestrial Ecotoxicology and Risk Management“

Mainz, 29 – 30 November

Annual Meeting of Swiss Society of Toxicology
Basel, 29 – 30 November


At IES Ltd we are always looking for skilled and talented professionals.

Read More