Ice Tribes
The Ice Tribes (also known as Glacier Tribes) are a warlike tribal society of primitive blue-skinned humanoids found in the northernmost regions of Skyrim and High Rock. As their name would imply, they dwell in glacial crevices. There are at least two distinct tribes: the tribe of Glacier Crawl, and the tribes which live in the icy tunnels surrounding the settlement of Dawnstar.
 Imperial Cult
- "The missionary arm of the great faiths, the Imperial Cult brings divine inspiration and consolation to the Empire's remote provinces. The cults combine the worship of the Nine Divines: the Aedra Akatosh, Dibella, Arkay, Zenithar, Mara, Stendarr, Kynareth, and Julianos, and the Talos Cult, veneration of the divine god-hero Tiber Septim, founder and patron of the Empire. Imperial Cult priests provide worship and services for all these gods at the Imperial Cult shrines in settlements throughout Vvardenfell." -- Morrowind Prophecies
The Imperial Cult's shrines are mainly found in Imperial Forts; the Imperial Chapels in Ebonheart serve as its headquarters on Vvardenfell. The Cult maintains relatively good relations with the other guilds of Morrowind, being allies with the Imperial Legion, Blades, and Fighters Guild and on friendly terms with the Mages Guild, House Hlaalu, and Redoran.
 Imperial Geographical Society
The Imperial Geographical Society is a long-standing outfit responsible for the outlining and preservation of historical accounts within the whole of the Empire.
The Society has thrice been given the respected assignment of penning the Pocket Guide to the Empire, a broad overview of the history of the Tamrielic Empire. These guides, by definition of the Society, are to "paint a portrait of our known world at this moment in history for the edification of our readers [...] wide in scope".
The Society works on behalf of the Empire and in 2E 864, under the new united Tamriel and by authority of Tiber Septim, the first edition of the Pocket Guide to the Empire was published. The guide was largely used as an educational and informative tool to reassure the inhabitants of the new Empire. Parts of the guide were considered propagandist to emphasize this reassurance. The Society published the 2nd version in 3E 331 and the propagandist tone was removed. The third edition appeared in 3E 432.
An apparent branch of the society, the Imperial Geographic Survey, published a census on the Daedra Lords around the same time as the third edition pocket guide was released.
 Imperial Knights
The Imperial Knights are an obscure knightly guild of Tamriel representing the upper echelons of the Imperial Legion. They do not serve as field commanders as such, but rather as the militaristic nobility of the Empire.
 Imperial Legion
The Imperial Legion, also known as the Imperial Army, is the terrestrial component of the armed forces of the Empire of Tamriel. It operates under the auspices and with the authority of the Emperor himself, and, with its vast numbers, quality training, and rigid discipline, is considered one of the most powerful fighting forces ever assembled in history.
While in peacetime the Legion serves primarily as a garrison force, manning forts, patrolling roads, and providing guardsmen for towns, cities, counties, and nobles, in wartime the Legion's responsibilities and powers are greatly increased. During conflicts, the Legion serves as an invading and occupying force, overwhelming opposition with numerical superiority and strict economy of force.
The primary mission of the Imperial Legion is to preserve the peace and rule of law in the Empire.