John J. Welch

Diomed, Inc. treats vein related problems with diode lasers for surgery and other medical applications. The company uses endovenous laser treatment for varicose veins and photo dynamic therapy for cancer and pre-cancer treatments. It has offices at Hamburg in Germany, Kladno in Czech Republic, Vasteras in Sweden, Denmark, Finland, France, Hungary, Greece, Ireland, Iceland, Italy, the UK, the Netherlands, Norway, Poland, Portugal, Romania, Spain, Turkey, Switzerland, Belgium & Bulgaria and has distributors in Africa, Asia, Australia and North & South America. Diomed is based in Andover, MA.

Diomed Holdings, Inc. develops and commercializes minimal and micro-invasive medical procedures. It uses proprietary laser technologies and disposable products. The firm also provides photodynamic therapy for use in cancer treatments and dental and general surgical applications. The company was founded in 1998 and is headquartered in Andover, MA.