We have used the 2MASS all-sky survey and the WISE to look for ultracool dwarfs that are part of multiple systems containing main sequence stars .
We cross-matched L dwarf candidates from the surveys with Hipparcos and Gliese stars , finding two new systems .
The first system , G255-34AB is an L2 dwarf companion to a K8 star , at a distance of 36 pc .
We estimate its bolometric luminosity as log \mathit { L / L _ { \odot } } = \mathit { - } 3.78 \pm 0.045 and T _ { eff } = 2080 \pm 260 K. The second system , GJ499ABC , is a triple , with an L5 dwarf as a companion to a binary with an M4 and K5 star .
These two new systems bring the number of L dwarf plus main sequence star multiple systems to twenty four , which we discuss .
We consider the binary fraction for L dwarfs and main sequence stars , and further assess possible unresolved multiplicity within the full companion sample .
This analysis shows that some of the L dwarfs in this sample might actually be unresolved binaries themselves , since their \mathit { M _ { J } } appears to be brighter than the expected for their spectral types .