Leja is the World market leader in disposable semen counting chambers. Over the years, Leja has manufactured a number of different counting chambers that suit different customer needs. Our products can be found in IVF clinics, clinical laboratories and AI centres (porcince, bovine, equine, and more). Leja is a research driven company that sponsors many research projects. Leja also is able to deliver specials and private label products upon request.