  A sample of 54 selected Active Galactic Nuclei (AGN) has been observed with
the HEGRA stereoscopic system of Cherenkov Telescopes between 1996 and 2002 in
the TeV energy regime. The observations were motivated by the positive results
obtained for Mkn 421 and Mkn 501. The distances of the selected objects vary
over a large range of redshifts between z = 0.004 and z = 0.7. Among the
observed AGN are the meanwhile established TeV-emitting BL Lac type objects
H1426+428 and 1ES1959+650. Furthermore the BL Lac object 1ES2344+514 and the
radio galaxy M87 show evidence for a signal on a 4 sigma level. The observation
of 1ES2344+514 together with the Whipple results firmly establishes this AGN as
a TeV source. Several objects (PKS2155-304, BL Lacertae, 3C066A) that have been
claimed as TeV gamma-ray emitters by other groups are included in this data
sample but could not be confirmed using data analysed here. The upper limits of
several AGN included in this analysis are compared with predictions in the
frame-work of SSC models.
