Structure of the FSB (not verified, of course):

• Counterintelligence Service (Department) - chiefs: Oleg Syromolotov (since Aug 2000), Valery Pechyonkin (September 1997 – August 2000). Military Counterintelligence Directorate - chiefs: Alexander Bezverkhny (at least since 2002), Vladimir Petrishchev (since January 1996)

• Service (Department) for Protection of the Constitutional System and the Fight against Terrorism – chiefs: Alexey Sedov (since March 2006), Alexander Bragin (2004 – March 2006), Alexander Zhdankov (2001 - 2004), German Ugryumov (2000-2001). Directorate for Terrorism and Political Extremism Control – chiefs: Mikhail Belousov, before him Grafov, before the latter Boris Mylnikov (since 2000)

• Economic Security Service (Department) – chiefs: Alexander Bortnikov (since March 2, 2004), Yury Zaostrovtsev (January 2000 – March 2004), Viktor Ivanov (April 1999 – January 2000), Nikolay Patrushev (1998 – April 1999), Alexander Grigoryev (August 28 – October 1, 1998).

• Operational Information and International Relations Service (Analysis, Forecasting, and Strategic Planning Department) – chiefs: Viktor Komogorov (since 1999), Sergei Ivanov (1998-1999)

• Organizational and Personnel Service (Department) – chiefs: Yevgeny Lovyrev (since 2001), Yevgeny Solovyov (before Lovyrev)

• Department for Activity Provision – chiefs: Mikhail Shekin (since September 2006), Sergey Shishin (before Shekin), Pyotr Pereverzev (as of 2004), Alexander Strelkov (before Pereverzev)

• Border Guard Service – chiefs: Vladimir Pronichev (since 2003)

• Control Service – chiefs: Alexander Zhdankov (since 2004). Inspection Directorate – chiefs: Vladimir Anisimov (2004-May 2005), Rashid Nurgaliyev (July 12 2000 - 2002). Internal Security Directorate – chiefs: Alexander Kupryazhkin (until September 2006), Sergei Shishin (before Kupryazhkin since December 2002), Sergei Smirnov (April 1999 – December 2002), Viktor Ivanov (1998 – Aril 1999), Nikolay Patrushev (1994-1998)

• Science and Engineering Service (Department) – chiefs: Nikolai Klimashin

• Investigation Directorate – chiefs: Nikolay Oleshko (since December 2004), Yury Anisimov (as of 2004), Viktor Milchenko (since 2002), Sergey Balashov (until 2002 since at least 2001), Vladimir Galkin (as of 1997 and 1998)

Besides the services (departments) and directorates of the federal office, the territorial directorates of FSB in Federal subjects of Russia are also subordinate to it.

Of these, St. Petersburg and Leningrad Oblast Directorate of FSB and its predecessors (historically covering both Leningrad/Saint Petersburg and Leningrad Oblast) have played especially important role in the history of this organization, as many of the officers of the Directorate, including Vladimir Putin and Nikolay Patrushev, later assumed important positions within the federal FSB office or other government bodies. After the last Chief of the Soviet time, Anatoly Kurkov, the St. Petersburg and Leningrad Oblast Directorate has been led by Sergei Stepashin (November 29, 1991 - 1992), Viktor Cherkesov (1992 –1998), Alexander Grigoryev (October 1, 1998 – January 5, 2001), Sergei Smirnov (January 5, 2001 – June 2003), Alexander Bortnikov (June 2003 – March 2004) and Yury Ignashchenkov (since March 2004).