The Collaborative International Dictionary of English v.0.48:

Planner \Plan"ner\, n.
   One who plans; a projector.
   [1913 Webster]

Moby Thesaurus II by Grady Ward, 1.0:

61 Moby Thesaurus words for "planner":
   a, ancestors, apprentice, architect, artificer, artist, author,
   begetter, beginner, builder, conceiver, constructor, contriver,
   craftsman, creator, designer, developer, deviser, discoverer,
   effector, engenderer, engineer, enterpriser, entrepreneur,
   executor, executrix, father, founder, framer, generator, grower,
   inaugurator, industrialist, initiator, instigator, institutor,
   introducer, inventor, journeyman, maker, manufacturer, master,
   master craftsman, mother, organizer, originator, past master,
   precursor, prime mover, producer, projector, promoter, raiser,
   realizer, shaper, sire, smith, strategian, strategist, tactician,
   wright