  In this paper we examine the nearest 100 pc entries in the data release 2 of
Gaia to identify previously unrecognized candidate members in young
associations. We analyze 695 952 stars with the BANYAN {\Sigma} Bayesian
classification software and discover 898 new high-likelihood candidate members
that span a wide range in properties, from spectral types B9 to L2, including
104 co-moving systems, 111 brown dwarfs and 31 new bona fide members. Our
sample is mostly composed of highly active M dwarfs and will be crucial to
examine the low-mass end of the initial mass function of young associations.
Our sample includes new candidate members near the Galactic plane where
previous surveys suffered from a high rate of contamination. This paper
represents the first step towards a full reassessment of young associations in
the Solar neighborhood with the second data release of the Gaia mission.

Solar and Stellar Astrophysics