  Based on our intensive spectroscopic campaign with the GoldCam spectrograph
on the Kitt Peak National Observatory (KPNO) 2.1-m telescope, we have
constructed the first catalogue of E+A galaxies with spectroscopic companion
galaxies, and investigated a probability that an E+A galaxy have close
companion galaxies. We selected 660 E+A galaxies with $4.0{\rm \AA} < {\rm
H}\delta {\rm EW}$ at a redshift of $<0.167$ from the Data Release 5 of the
Sloan Digital Sky Survey (SDSS). We selected their companion candidates from
the SDSS imaging data, and classified them into true companions,
fore/background galaxies and companion candidates using the SDSS and our KPNO
spectra. We observed 26 companion candidates of E+A galaxies at the KPNO to
measure their redshifts. Their spectra showed that 17 targets are true
companion galaxies. The number of spectroscopically-confirmed E+A's companions
are now 34. This becomes the first catalogue of E+A galaxies with spectroscopic
companion systems. We found that E+A galaxies have an 54% larger probability of
having companion galaxies (7.88%) compared to the comparison sample of normal
galaxies (5.12%). A statistical test shows the probabilities are different with
99.7% significance. Our results based on spectroscopy tightens the connection
between the dynamical merger/interaction and the origin of E+A galaxies.
