A survey of Active Galaxies with the HAWC Gamma-ray Observatory

The High Altitude Water Cherenkov Gamma-Ray Observatory has been accumulating a progressively deeper exposure of the TeV sky since its inauguration in March 2015. Located at geographical latitude $+{19}^{\circ }$N, HAWC has been able to perform a deep and unbiased survey of two thirds of the sky. We analyzed three years of HAWC data searching for long term persistent emission from a redshift limited ($z\le 0.3$) sample of active galactic nuclei drawn from the {\it Fermi}-LAT 3FHL catalog. The HAWC dataset confirms the high significance detection of the two nearest BL Lac objects, \mbox{Mrk 421} and \mbox{Mrk 501}, and sets limits for the rest of the sample, down to integrated photon fluxes of order $N(>0.5\mathrm{T}\mathrm{e}\mathrm{V})\lesssim {10}^{-12}\mathrm{c}{\mathrm{m}}^{-2}{\mathrm{s}}^{-1}$. We present and discuss some of the results of this survey, focusing on individual objects of particular interest.