Note, this is not intended to be a complete list of all Classes & Feats that give Untyped Bonuses. Generic access such as spellcasting and items are the intended materials allowing you to improve an existing character. Additionally, many Spell's may offer the same valued bonus as another, I simply picked one among them.AllAlchemical: +2 form luhix (BoED).
Inherent: +5 from tomes/manuals, wish (Core).
Unnamed: +5 from leveling (Core).
Unnamed: +2/+4 from greater visage of the deity (CD).
Unnamed: +2 from psionic meditation (
online).
Unnamed: +1 from a faustian pact (FCII).
Unnamed: +1 from the worm of minauros (FCII).
Deformity: +4 from warp touch (BoVD).
Enhancement: +8 from necromantic empowerment (LM).
Racial: +2 from ring of the white wyrm (FB).
Unnamed: +10 from horseshoes of flame (SS).
Unnamed: +3 from aging (Core).