  The project Massive Unseen Companions to Hot Faint Underluminous Stars from
SDSS (MUCHFUSS) aims at finding hot subdwarf stars with massive compact
companions (white dwarfs with masses $M>1.0 {\rm M_{\odot}}$, neutron stars or
black holes). The existence of such systems is predicted by binary evolution
calculations and some candidate systems have been found. We identified
$\simeq1100$ hot subdwarf stars from the Sloan Digital Sky Survey (SDSS). Stars
with high velocities have been reobserved and individual SDSS spectra have been
analysed. About 70 radial velocity variable subdwarfs have been selected as
good candidates for follow-up time resolved spectroscopy to derive orbital
parameters and photometric follow-up to search for features like eclipses in
the light curves. Up to now we found nine close binary sdBs with short orbital
periods ranging from $\simeq0.07 {\rm d}$ to $1.5 {\rm d}$. Two of them are
eclipsing binaries with companions that are most likely of substellar nature.
