  Utilizing the Two Micron All Sky Survey (2MASS) All-Sky Data Release Catalog,
we have retrieved useful near-IR J, H, and Ks magnitudes for more than 800 hot
subdwarfs (sdO and sdB stars) drawn from the "Catalogue of Spectroscopically
Identified Hot Subdwarfs" (Kilkenny, Heber, & Drilling 1988, 1992). This sample
size greatly exceeds previous studies of hot subdwarfs. We find that, of the
hot subdwarfs in Kilkenny et al., ~40% in a magnitude limited sample have
colors that are consistent with the presence of an unresolved late type (FGK)
companion. Binary stars are over-represented in a magnitude limited sample. In
an approximately volume limited sample the fraction of composite-color binaries
is ~25%.
