Every winter (February) the SZS holds its annual two-day scientific and organizational meeting, together with the swiss Botanical and Systematics Societies at one scientific institution in Switzerland. The main topics vary from year to year, but the interest in evolution, ecology and behavior prevails. The conference includes the annual business meeting and a dinner in honor of Charles Darwin's birthday.

The previous meeting was held at EAWAG (see:

The next meeting, biology2016, will be held on 11-12 February 2016 in Lausanne