Type 2 is a qualifying typology used to add a second level of structure to the heirarchical typology (see Type 1). There are 13 such qualifiers and an organization may be assigned up to three qualifiers. The 13 qualifiers are designated by an lower case letter.

The 13 lower case letters used for Type 2 and their significance are the following:

b = bilateral intergovernmental organization (normally but not always assigned to Type G)
c = conference series (normally but not always assigned to Type S)
d = dissolved, dormant (normally but not always assigned to Type H or Type U)
e = commercial enterprise
f = foundation, fund (normally but not always assigned to Type F)
g = intergovernmental
j = research institute
n = has become national (normally but not always assigned to Type N)
p = proposed body (normally but not always assigned to Type J)
s = information suspect
t = trade association
v = individual membership only
x = no recent information received
y = international organization membership