The 14^th International Colloquium on Endocytobiology and Symbiosis
2019, Sep. 1 – 5, Lille, France. Organisation: S. Ball 

The 13^th International Colloquium on Endocytobiology and Symbiosis
2016, Sep. 10 – 14, Kyoto, Japan. Organisation: J. Obokata

The 12^th International Colloquium on Endocytobiology and Symbiosis
2013, Aug. 18 – 22, Halifax, Canada. Organisation: J. Archibald

The 11^th International Colloquium on Endocytobiology and Symbiosis
2010, Aug. 29 – Sep. 3, Tromso, Norway. Organisation: K. Krause

The 10^th International Colloquium on Endocytobiology and Symbiosis
2007, Sep. 10 – 13, Gmunden, Austria. Organisation: W. Löffelhardt

The 9^th International Colloquium on Endocytobiology and Symbiosis
2004, Sep. 11 – 16, Jena, Germany. Organisation: R. Oelmüller

The 8^th International Colloquium on Endocytobiology and Symbiosis
and the „Ishida Memorial Symposium on the Chloroplast Genome“
2001, October 12 – 17, Nagoya, Japan. Organisation: M. Sugiura and J. Obokata

The 7^th International Colloquium on Endocytobiology and Symbiosis
1998, Apr. 5 – 9, Freiburg, Germany. Organisation: E. Wagner

The 6^th International Colloquium on Endocytobiology and Symbiosis
1995, Sep. 6 – 10, Tübingen, Germany. Organisation: H.E.A. Schenk, N.E. Müller, W. Schwemmler (S. Scannerini)

The 5^th International Colloquium on Endocytobiology and Symbiosis
1992, Jun. 23 – 27, Kyoto, Japan. Organisation: S. Sato, M. Ishida, H. Ishikawa

The 4^th International Colloquium on Endocytobiology and Symbiosis
1989, Jul. 4 – 8, Lyon, France. Organisation: P. Nardon, V. Gianinazzi-Pearson, Grenier, L. Margulis, D.C. Smith

The 3^rd International Colloquium on Endocytobiology
1986, Jun. 10 – 12. New York, U.S.A.  Organisation: J.J. Lee, J.F. Fredrick

The 2^nd International Colloquium on Endocytobiology
1983, Apr. 10 – 15 Tübingen, Germany. Organisation: H.E.A. Schenk, W. Schwemmler

International Colloquium on Endosymbiosis and Cell Research
1980, Apr. 11 – 15, Tübingen, Germany. Organisation: W. Schwemmler, H.E.A. Schenk