Ideaconsult Ltd (www.ideaconsult.net) is a SME providing consultancy, technical services and software development in the areas of chemoinformatics, QSAR and data mining since 2004. Ideaconsult currently leads the framework implementation WP of the OpenTox FP7 project. It develops and maintains several well-known and widely used open source software products relevant to this project, in particular Toxtree (used, for example, in the application of the threshold of toxicological concern), Toxmatch (for encoding and applying chemical similarity indices) and AMBIT, a QSAR decision support system, including generic database management, structure conversions and searching, as well as applicability domain assessment. These tools have been carefully designed and developed in close co-operation both with academia, regulatory bodies and industry. Some of the code base could be effectively re-used, adapted and further enhanced to meet the objectives of the project.