  Green pea galaxies are starbursting, low-mass galaxies that are good
analogues to star-forming galaxies in the early universe. We perform a survey
of 23 Green Peas using the MUSE Integral Field Unit spectrograph on the VLT to
search for companion galaxies. The survey reaches an average point-source depth
of $\sim 10^{-18}$ erg cm$^{-2}$ s$^{-1}$ for emission lines. The MUSE field of
view allows us to probe a 1$\times$1 arcmin$^2$ field around these galaxies and
to search their surroundings for faint companions that could have interacted
with them and induced their starburst episodes. We search for companions using
a variety of methods including template matching to emission and absorption
line spectra. When restricting the search to the same physical area (R = 78
kpc) for all galaxies, we find that the fraction of green pea galaxies with
companions is $0.11_{-0.05}^{+0.07}$. We define a control sample of
star-forming galaxies with the same stellar masses and redshifts as the green
peas, but consistent with the star-formation main sequence. We find that green
pea galaxies are as likely to have companions as the control sample; for which
the fraction of objects with companions is $0.08_{-0.03}^{+0.05}$. Given that
we do not find statistical evidence for an elevated companion fraction in the
green peas in this study, we argue that the ``companions" are likely unrelated
to the bursts in these galaxies.
