Type III

A Type III civilization extracts fusion energy, information, and raw-materials from all possible star-clusters; it is capable of intergalactic travel via wormholes, intergalactic communication, galactic engineering and galaxy-scale influence.

Civilizations that are considered Type III
The Asgard of Stargate (3.3)

The Endless from Endless Space (3.5)

Galactic Empire of Star Wars

Races from Gene Roddenberry's Andromeda

Scrin from Command & Conquer

Engineers from Prometheus

Progenitors from Homeworld

The Nephilim from Wing Commander

The Forerunners and Precursors from Halo

The Grox from Spore

Necrons from Warhammer 40K