Sun-Mar Corporation

Founded in Ontario over 40 years ago, Sun-Mar is a global leader in composting toilet technology. The company supports North American farmers, rural homeowners, and off-grid communities by providing waterless, odor-free sanitation solutions ideal for barns, cabins, and remote agricultural settings. Sun-Mar’s patented Bio-drum™ system accelerates natural decomposition, turning waste into usable compost while conserving water and reducing environmental impact. Certified to NSF/ANSI Standard 41, their toilets are trusted by institutions like the Smithsonian and NASA, making Sun-Mar a reliable choice for sustainable rural sanitation.