  The Kepler mission has provided high quality light curves for more than 2000
eclipsing binaries. Tertiary companions to these binaries can be detected if
they transit one or both stars in the binary or if they perturb the binary
enough to cause deviations in the observed times of the primary and secondary
eclipses (in a few cases both effects are observed in the same eclipsing
binary). From the study of eclipse timing variations, it is estimated that 15
to 20% of the Kepler eclipsing binaries have close-in tertiary companions. I
will give an overview of recent results and discuss some specific systems of
interest.
