Water Coolers and Drinking Fountains. Founded in 1910, OASIS International’s products are found in 80 countries around the world, with approximately 13 million water coolers and related products in service today. We design, manufacture and distribute a wide range of environmentally-friendly, sustainable water filtering and dispensing systems for business and home use. It’s our mission and our passion to provide durable, high-quality, technologically advanced water delivery and filtration products that provide long-lasting value for our customers. Today, our goal is what it’s always been: to provide clean, refreshing drinking water to the planet that is free from harmful bacteria, viruses, sediments, metals and chemicals.