A modular device mounting platform apparatus having interchangeable jaw members for accommodating different devices. The device mounting platform apparatus includes a frame member capable of being mounted, by example and without limitation, in a vehicle and having a device mounting surface facing generally upward. A telescoping clamp member is slidably interconnected to frame member along a first direction. A biasing mechanism is coupled between frame and clamp members for urging a jaw member of the clamp member along first direction away from the frame member. A plurality of different jaw members are interchangeably coupleable to the frame and clamp members in an opposing relationship across the device mounting surface of the frame.