What a coincidence...
Brewster Jennings & Associates was a front company set up by the CIA for Valerie Plame. < snip >
Intended to infiltrate ties between groups involved in smuggling nuclear weapons, it was apparently named after the late Brewster Jennings, who served as president of a predecessor company to Exxon Mobil Corporation.
Good catch and coincidences abound. Please note that Plame's CIA front company's name, Brewster-Jennings, is hyphenated. Brewster Jennings' original company was called Socony-Vacuum, also hyphenated.