Eclipse
Type:	Private
Industry:	Private military
Founder:	Jona Sederis
Dates:	15 April 1799 CE - 4 June 2192 CE (393 years, 1 months and 20 days)
Owner:	Zaeed Massani (last)
Headquarters:	Monoi, Lusia
Area served:	Entirety of the Milky Way Galaxy
CEO:	Zaeed Massani (last)
Key people:	Jona Sederis Ikorth Sayn Gaehok Jaroth Behorth Jaroth Lipon Morl Malerna Enyala Myreziir Wasea Georgia Roe Wilort Vorleon
Services:	Private security Assassinations Sabotage Mechanized warfare Technological superiority Army-for-hire Stealth
Number of employees:	10.4 million employees
Subsidiaries:	Sisterhood of the Blue (rogue faction)
Extranet site:	eclipsedefsol.gal

"Regular mercenaries offer protection. We offer security."

— Eclipse advertisement.

Eclipse was an asari-run multi-species private military corporation that specialized in stealth, mechanized warfare and technological superiority. Founded on Lusia by former asari commando Jona Sederis, Eclipse was formed in 1799 CE when Sederis broke away from the Thessian Rangers to build her own company, with the Rangers' having become weary of Sederis' sadistic, cruel practices. From the ground-up Sederis built Eclipse to be a high-tech competitor to the Thessian Rangers, initially running it as an asari-dominant mercenary band, but as the company evolved and outgrew its initial parameters, she began accepting salarian recruits, as their affinity for technology and mechanized warfare made them ideal candidates to fill out Eclipse's ranks. Eclipse eventually grew to a point that it was able to subsume the Rangers, purchasing the company and its resources before dissolving it and seizing those resources for use by Eclipse. While the company's headquarters were on Lusia, the majority of Eclipse operations were waged in the Terminus Systems, where Sederis knew the company would have the flexibility to accept whatever contracts it pleased. Eclipse was able to establish a sizable chapter on Omega by 1900 CE, controlling nearly 20 percent of all smuggling operations on the station by 2185 CE. Influenced by a mix of asari-salarian military doctrine, Eclipse specialized in sabotage, assassination, and personal and organizational security. Despite advertising itself as a "private security company" in its early days, Eclipse's operations more closely associated it with a private army, and when Eclipse wasn't smuggling narcotics or crushing rival gangs, it was waging its own private wars or being hired to fight wars for others. Eclipse's style of warfare incorporated heavy use of combat engineers and mechanized tactics, with the company spending a fortune to ensure its technological superiority over both its enemies and competitors, and maintaining a sizable stash of armoured vehicles, fast-moving starships and, eventually, a massive stockpile of mechs to supplement its ground forces, both manned and automated.

By the time of humanity's arrival on the galactic scene, Eclipse was already climbing its way to becoming one of the top PMCs in the Terminus Systems, and Jona Sederis was one of the wealthiest and most notorious mercenary CEOs in the galaxy, her penchant for cruelty and ruthlessness being rightly feared and respected, running a tight ship but allowing flexibility in her company's operations, with many Eclipse captains and commanders largely left to their own devices: even when a chapter of her company on Illium went rogue and established itself as the Sisterhood of the Blue in Nos Astra, Sederis was largely unbothered by it, and mostly ignored the Sisterhood, allowing it to operate so long as it didn't take direct action against the rest of Eclipse. By 2164 CE Eclipse began recruiting humans into its ranks too, the first time another species had been allowed into the company since the salarians, and the extra human manpower further solidified Eclipse's foothold as one of the wealthiest PMCs. Despite this, in mid 2184 CE, things began to go downhill for Eclipse: the arrival of Archangel on Omega significantly hindered Eclipse's operations there, as well as those of every other PMC and gang on the station, a fact that very much irritated Sederis, but something she failed to act upon until the Eclipse chapter there had already lost too much manpower to maintain its grip: by the time Archangel was "killed", the Eclipse chapter on Omega was severely depleted and its captain dead, which only made its position worse when open war against Aria T'Loak broke out on Omega, weakening it further until the Cerberus invasion finished it off. By this point, Sederis was no longer in the picture: having attended a party at the estate of Donovan Hock, Sederis was defeated and captured by the Normandy Squad, who took her into custody following the destruction of Hock's estate and handed into the Bekenstein authorities, who then extradited her to C-Sec who held her pending trial. With Sederis arrested, leadership of the Eclipse passed her to her salarian second-in-command, Ikorth Sayn, but he didn't command the same respect or fear that Sederis did, and without her reputation, there was nothing keeping their competitors from making moves against them: as such, Eclipse found itself fighting a war on multiple fronts, only made worse by the Reaper War in 2186 CE.

Despite all of this, Eclipse still commanded enormous manpower, significant resources and mechanized forces that made it highly desired by the UGC, none more so than Commander Shepard, who had tangled with their forces often enough to know their value. Deals were made with Aria T'Loak on the Citadel during her exile to secure the loyalty of the Eclipse to the UGC in its infancy, although Shepard adamantly opposed working with Sederis, knowing she was a psychopath and that she would demand blood for the time she spent in prison. Shepard compromised, managing to convince Sayn to take over for Eclipse permanently, while also tricking Sederis into believing she was being released: Sederis was released in an alleyway in the Wards, where she was subsequently confronted by Sayn and killed. With word of Sederis' death at the hands of Sayn, and the story embellished to suggest an "epic struggle", Sayn had secured his reputation as somebody to be feared and the rest of Eclipse fell in line, joining the UGC. Eclipse committed most of its resources to the war effort, and joined Aria's liberation army in freeing Omega from Cerberus occupation. Eclipse forces, led by Sayn, participated in the Battle of London, where Eclipse lost thousands of troops and Sayn himself was killed. After the Reaper War, Eclipse was severely depleted galaxy-wide and disorganized, and with Sayn dead, they were once again leaderless. Zaeed Massani leapt on this opportunity to seize control of the company, along with the Blue Suns (who he already controlled) and the Blood Pack, who were also without a leader. Zaeed reorganized them into a triumvirate of inter-operational PMCs, but with the help of Miranda Lawson, eventually chose to merge them, creating the Red Sky PMC in 2192 CE, dissolving Eclipse as an independent company.