Peter Wenger

SIS Surgical Instrument Systems AG manufactures and markets surgical instruments for refractive and cataract surgery. Its product portfolio includes Amadeus, disposable surgical knives, cataract surgical instruments, Glaucoma diagnostics and Glaucoma treatment. The company was founded in 1997 and is headquartered in Port, Switzerland.

Ziemer Ophthalmic Systems AG distributes and supplies ophthalmic products. It focuses on marketing, sales and service of edge diagnostic and surgical ophthalmic products. The company was founded in 2001 and is headquartered in Port, Switzerland.

SMT Swiss Microtechnology AG manufactures and markets ophthalmic instruments and devices for use in surgeries. The firm provides tonometer tip production, final assembly and testing services. SMT Swiss Microtechnology was founded in 2002 by Frank Ziemer and is headquartered in Port, Switzerland.

Ziemer Group AG develops, manufactures, and markets diagnostic and surgical ophthalmic products. Its products include FEMTO LDV, AMADEUS, GALILEI and PASCAL. The company was founded by Frank Ziemer in 1998 and is headquartered in Port, Switzerland.