Who is behind it?


SIGA's headquarters and the production facilities are located in Ruswil and Schachen in Central Switzerland. Since we are an international company many of our over 300 employees work in Germany, Austria, Ireland, France, Luxembourg, Norway and Switzerland. The brothers Reto and Marco Sieber are the owners; they carry on the business founded by their parents in the second generation.
Reto Sieber
Born 1952 in Lucerne.
Education: Business studies at the university of St. Gallen, graduated as lic. oec. HSG.
Joined SIGA in 1980.
Interests: reading, hiking and observing, exchange experience in a small group of different people, learn new things
"For me, nature is the great example to follow when it comes to elegance, efficiency, technology and management. I admire people who choose new and ecologically better ways in spite of resistance. SIGA is a great opportunity and a challenge for me to take that path in the interest of our customers, our employees and those that come after us."
Marco Sieber
Born 1958 in Lucerne.
Education: Economic studies at the university of Lausanne, graduated in business administration.
Joined SIGA in 1982.
Interests: wind surfing, ski sports
"My main aim is to live each day with my family, in my professional and personal life with awareness and joy. I like people who have a vision that they put into practice. I am happy when we succeed in eliminating an old, highly polluting product from the market with a new, ecologically optimised one."


