"I'll tell you about it another time"
This article is scheduled for a Rework.
The Sunrise Corporation is a London manufacturing company with large offices near DEPRAC's headquarters and Fairfax Iron Company.
The corporation manufactures flares, and other equipment for agencies across the United Kingdom. Around the time Lockwood & Co. is gaining its reputation, the recent developments made by Sunrise included lavender grenades and more compact magnesium flares.
The silver-glass ghost-jar that contains the Skull was originally produced by the Sunrise Corporation. The ghostly artifacts in the reception room of the Fittes Agency are contained in pillars of Sunrise silver-glass.
Since the beginning of The Problem, there has been a slow consolidation of power amongst the companies who make money off defences against ghosts. The Sunrise Corporation, Fairfax Iron, and Fittes Agency effectively control all aspects of dealing with a Visitor, from problem to solution.
In The Empty Grave it is discovered by Lockwood & Co. that the twin leaders of Sunrise are members of the Orpheus Society. It is found that the corporation also has sold specialty electric guns and ridiculously powerful flares to the Fittes Agency. This results in several arrests of people from the Sunrise Corporation who were knowingly manipulating the Problem.