Nebula

Nebula is a powerful American corporation, headquartered in Chicago close to the Wrigley Building. The company owns branches in many different industries, including amusement ride manufacturing, food production, pharmaceutics, publishing, and the steel and chemical industries.

Pre-1930s
Nebula was founded in 1924 by Karl Muybridge as part of a company that manufactured amusement park equipment and planned public events. Thanks to Muybridge's expertise with money, the company grew its business into many different fields. It managed to withstand the Stock Market Crash of 1929.

1931
Nebula owns the transcontinental train the Flying Pussyfoot. Following the incident on 30-31 December 1931, Nebula compensates and silences many of the passengers by paying them off. With Senator Manfred Beriam's influence, they hide the incident from the world and decommission the train.

1932
Nebula is mentioned by Bartolo Runorata when he is tracking down Dallas Genoard to test incomplete immortality. They are also implied to have secured drugs that Begg Garott was using on Roy Maddock.

1933
The Mist Wall, a grand building in New York owned by Nebula, is the sight for the climactic conflict in 1933. Huey Laforet plots to bomb the location and kill its employees for an experiment, summoning the Larvae and the Lamia, two of his groups. In the struggle, the Martillo Family and the Gandor Family along with Jacuzzi Splot's gang converge on the building through coincidences and misunderstandings. Senator Manfred Beriam oversees an experiment as he is the owner of the building, revealing he has allowed all 1200 of its employees to become incomplete immortals. He reveals that Nebula will go the distance in ending the immortal threat and Huey's terrorist acts.

Once the dust settles, Mist Wall is left alone as all the factions of the storyline separate once the rain in New York subsides. Senator Beriam clears the incident once more.

1934
Due to the escalating problems of the Lamia in Chicago, Nebula hires help from the Russo Family by giving some powerful members incomplete immortality. Placido Russo hires Graham Specter to track down the Lamia or face dire consequences.

After successfully kidnapping Frank, several of Nebula's buildings and facilities in Elsen's Hill are blown up by Rail and Sham. Ultimately, they fail in stopping the homunculi and lose their trump card Graham Specter to the opposing faction, resorting to Senator Beriam's influence for help.

Durarara!! (2000s)

The company is mentioned in recurring stories at modern times through the series Durarara!! The first act depicts them having bought out Yagiri Pharmaceuticals, headquarters of one of the locals named Namie Yagiri to conduct research on Dulluhan activity among other experiments and manufacturing near indestructible pens that could allegedly stop a tank used by the former's brother Seiji Yagiri. They are also targeting resident supernatural entity Celty Sturluson 's head and eventually succeed in the final volumes of Durarara!! 13. Namie Yagiri is hired to conduct research on the Celty's head after causing a near cataclysmic apocalypse in the city of Ikebukuro and stopped by the the main cast of Durarara. Celty's head is taken to Nebula's Chicago headquarters.

1930s
Karl Muybridge - Nebula founder and chairman.

Senator Manfred Beriam - A powerful politician searching for immortality to abolish it.

Renee Paramedes Branvillier - Head of Nebula Pharmaceutical Department Unit 6. An immortal researcher using the company to advance her experiments. She ultimately becomes its leader in certain story lines, implied to still lead Nebula to the present Durarara storyline.

Homer - Head of the New York branch. He's conspicuously absent when the Mist Wall is stormed in September 1933.

Placido Russo - The leader of the Russo Crime family, Renee uses them as a means to quell a series of violent acts to their organizational buildings in Chicago by giving the don incomplete immortality. When they fail, they disassociate from the Russo and Placido is consumed by Renee.

Bartolo Runorata - The leader of the Runorata Crime family and appears to be more interested in immortality for the science as opposed to the secret of immortality itself.

2000s
Shingen Kishitani - One of their chief scientists when the supernatural is involved. Frequently disregards Nebula's goals in favor of his own frivolous endeavors. Is only affiliated with them for the research funding.

Emilia Kishitani - Shingen's wife and assistant. Share's her husbands interest for the supernatural and the unusual.

Egor - Hired by Shingen to capture Ruri Hijiribe until she was ultimately rejected for testing.

1930s
Huey Laforet - One of the original immortals.

Frank - A homunculus created by Huey.

2000s
Celty Sturluson - Agreed to testing in exchange for safe passage to Japan. Company has since lost interest in Celty's body and is more focused on finding the head.

Ruri Hijiribe - Considered for testing by Shingen but was ultimately rejected by his superiors due to the belief that she would yield very little new discoveries.

Shizuo Heiwajima - Considered but ultimately rejected as a viable test subject (most likely due to his volatile temper).