The BBJ-3 is a BBJ-2 with the longer fuselage of the B737-900.
Boeing is the best-known name of airline-sized aircraft in the domestic corporate marketplace. It is capable of ranges exceeding 6,000 nautical miles, however, to increase luggage space many are ordered without all the available long-range fuel tanks. The BBJ 3 has over 7,000 cubic feet of cabin space that permits passengers to walk from one end of the cabin to the other without going through private staterooms or conference rooms.
With more than 5,500 737s flying with airlines all over the world, corporate operators can expect good support anywhere in the world.