We present the first INTEGRAL AGN catalog , based on observations performed from launch of the mission in October 2002 until January 2004 .
The catalog includes 42 AGN , of which 10 are Seyfert 1 , 17 are Seyfert 2 , and 9 are intermediate Seyfert 1.5 .
The fraction of blazars is rather small with 5 detected objects , and only one galaxy cluster and no star-burst galaxies have been detected so far .
A complete subset consists of 32 AGN with a significance limit of 7 \sigma in the INTEGRAL /ISGRI 20–40 keV data .
Although the sample is not flux limited , the distribution of sources shows a ratio of obscured to unobscured AGN of 1.5 - 2.0 , consistent with luminosity dependent unified models for AGN .
Only four Compton-thick AGN are found in the sample .
Based on the INTEGRAL data presented here , the Seyfert 2 spectra are slightly harder ( \Gamma = 1.95 \pm 0.01 ) than Seyfert 1.5 ( \Gamma = 2.10 \pm 0.02 ) and Seyfert 1 ( \Gamma = 2.11 \pm 0.05 ) .