  We present generic formulae for computing how Sommerfeld corrections together
with bound-state formation affects the thermal abundance of Dark Matter with
non-abelian gauge interactions. We consider DM as a fermion 3plet (wino) or
5plet under SU(2)$_L$. In the latter case bound states raise to 14 TeV the DM
mass required to reproduce the cosmological DM abundance and give indirect
detection signals such as (for this mass) a dominant $\gamma$-line around 85
GeV. Furthermore, we consider DM co-annihilating with a colored particle, such
as a squark or a gluino, finding that bound state effects are especially
relevant in the latter case.
