Dark Moon Enterprises
- "They've only been in business a month, and already they know enough about Gamma Company to give ONI a public-relations nightmare. That means they're either as good as ONI - or a whole lot more agile. Whichever it is, I wouldn't bet against Dark Moon when this thing turns ugly."
- — Veta Lopis discussing Dark Moon.
In September 2553, Dark Moon seemed to appear from nowhere with a list of prestigious clients and began hiring former UNSC personnel to provide security services in a broad spectrum of hostile environments. Within two weeks of its appearance, Dark Moon had grown so fast that they began hiring active-duty UNSC personnel; because of this the UNSC put them on the No Contact, No Access list. After this, Dark Moon began offering clients a menu of privatized intelligence and threat-management services and began to recruit both former and current ONI agents to fulfill its contracts. Even a month after its appearance ONI still had very little information on Dark Moon, not even knowing who its founder or company executives were.
In early October 2553, Dark Moon recruited Naval commander Ota Gallo, who began feeding information on the SPARTAN-III program to investigative journalist Spencer Hume in order to hurt ONI. It was believed that if the public discovered the nature of Gamma Company and ONI's cover-up regarding them, ONI would be crippled, leaving a power vacuum for Dark Moon to fill. On October 14, both Gallo and Hume were attempting to gather more intelligence on the Spartan-IIIs, targeting Olivia-G291 at the UNSC Recreational Facility 6055-NA-A where Olivia and her Ferret Team were participating in a training exercise. However, Olivia was rescued by her team while Hume was killed by Mark-G313 when he resisted capture. The Ferret Team, led by Veta Lopis, discovered Dark Moon's involvement by uncovering Gallo's identity and her connection to Dark Moon. To keep Gallo from escaping with information on the Spartan-IIIs, Veta and her team lured Gallo to their hotel suite with Hume's COM pad. Gallo attacked with two men but all three were killed.