Guild

The Guild is an international shadow organization and a dangerous terrorist group that serves as the main antagonists of James Rollins' Sigma Force novel series. It is a covert group that has infiltrated government agencies and commercial enterprises in its quest for world domination.

Backstory
The name originally not called the Guild. There is no known official name used by members of the organization. The name “Guild” was given attributed by a former SAS officer, who had died by 2007. Members in various cells took on the name as their own in a mockingly manner, but soon enough, they took it genuinely.

The guild has massive amount of spies around the world and possesses an incredible amount of insight and knowledge. One time, A MI5 member was sent to infiltrate a cell in India. He returned a broken man, having been found out, tortured extensively, and beaten. They possess massive amounts of funding and seemingly are able to infiltrate some of the best.

Associates
These people were associated with the organization at one time or another


 * Tony Rector - In prison


 * Cassandra Sanchez - Deceased at end of Sandstorm


 * Seichan – secret mole working with Sigma Force