A geared compressor comprising: a drive gear that configured to rotate about a drive axis by rotation of a drive device; a first intermediate gear that meshes with the drive gear and configured to rotate about a first intermediate axis parallel to the drive axis; a second intermediate gear that meshes with the drive gear at a position spaced apart from the first intermediate gear and configured to rotate about a second intermediate axis parallel to the drive axis; a first driven gear that meshes with the first intermediate gear at a position spaced apart from the drive gear and configured to rotate about a first driven axis parallel to the drive axis; a second driven gear that meshes with the second intermediate gear at a position spaced apart from the drive gear and configured to rotate about a second driven axis parallel to the drive axis; a first impeller and a second impeller that are connected to the first driven gear and configured to compress a working fluid supplied from an outside by rotation of the first driven gear; and a third impeller and a fourth impeller that are connected to the second driven gear and configured to compress a working fluid supplied from the outside by rotation of the second driven gear, characterized in that, when viewed from an axial direction (Da) in which the drive axis extends, the drive axis is disposed below the first intermediate axis, the second intermediate axis, the first driven axis, and the second driven axis in a vertical direction, and in that in a case where the working fluid is compressed in order from the first impeller to the fourth impeller, the first impeller has a larger outer diameter than outer diameters of the second impeller, the third impeller, and the fourth impeller, and in that when viewed from the axial direction (Da), positions of the first intermediate axis, the second intermediate axis, the first driven axis, and the second driven axis in the vertical direction are the same. a drive gear that configured to rotate about a drive axis by rotation of a drive device; a first intermediate gear that meshes with the drive gear and configured to rotate about a first intermediate axis parallel to the drive axis; a second intermediate gear that meshes with the drive gear at a position spaced apart from the first intermediate gear and configured to rotate about a second intermediate axis parallel to the drive axis; a first driven gear that meshes with the first intermediate gear at a position spaced apart from the drive gear and configured to rotate about a first driven axis parallel to the drive axis; a second driven gear that meshes with the second intermediate gear at a position spaced apart from the drive gear and configured to rotate about a second driven axis parallel to the drive axis; a first impeller and a second impeller that are connected to the first driven gear and configured to compress a working fluid supplied from an outside by rotation of the first driven gear; and a third impeller and a fourth impeller that are connected to the second driven gear and configured to compress a working fluid supplied from the outside by rotation of the second driven gear, characterized in that, when viewed from an axial direction (Da) in which the drive axis extends, the drive axis is disposed below the first intermediate axis, the second intermediate axis, the first driven axis, and the second driven axis in a vertical direction, and in that in a case where the working fluid is compressed in order from the first impeller to the fourth impeller, the first impeller has a larger outer diameter than outer diameters of the second impeller, the third impeller, and the fourth impeller, and in that when viewed from the axial direction (Da), positions of the first intermediate axis, the second intermediate axis, the first driven axis, and the second driven axis in the vertical direction are the same.