According to Reviewed.com, the top-rated small dishwashers in 2014 included the Kenmore 14652, an 18-inch wide, compact, portable dishwasher with a work surface on the top of the unit. The Kenmore Elite 14683 was also top rated because it is equipped with wash cycles and options as a full-size unit.
Small or compact dishwashers are available in countertop, portable or slimline models made by manufacturers such as Bosch, GE, Hotpoint, Maytag and Samsung. Many compact models have the same features as a full-size, 24-inch-wide dishwasher but offer less capacity for dishes. Compact dishwashers can operate as stand-alone units or can be built in to the cabinetry within a kitchen.