  We present the discovery of 61 wide (>5 arcsecond) separation, low-mass
(stellar and substellar) companions to stars in the solar neighborhood
identified from Pan-STARRS\,1 (PS1) data and the spectral classification of 27
previously known companions. Our companions represent a selective subsample of
promising candidates and span a range in spectral type of K7-L9 with the
addition of one DA white dwarf. These were identified primarily from a
dedicated common proper motion search around nearby stars, along with a few as
serendipitous discoveries from our Pan-STARRS1 brown dwarf search. Our
discoveries include 24 new L dwarf companions and one known L dwarf not
previously identified as a companion. The primary stars around which we
searched for companions come from a list of bright stars with well-measured
parallaxes and large proper motions from the Hipparcos catalog (8583 stars,
mostly A-K~dwarfs) and fainter stars from other proper motion catalogues (79170
stars, mostly M~dwarfs). We examine the likelihood that our companions are
chance alignments between unrelated stars and conclude that this is unlikely
for the majority of the objects that we have followed-up spectroscopically. We
also examine the entire population of ultracool (>M7) dwarf companions and
conclude that while some are loosely bound, most are unlikely to be disrupted
over the course of $\sim$10 Gyr. Our search increases the number of ultracool M
dwarf companions wider than 300 AU by 88% and increases the number of L dwarf
companions in the same separation range by 96%. Finally, we resolve our new L
dwarf companion to HIP 6407 into a tight (0.13 arcsecond, 7.4 AU) L1+T3 binary,
making the system a hierarchical triple. Our search for these key benchmarks
against which brown dwarf and exoplanet atmosphere models are tested has
yielded the largest number of discoveries to date.
