Agua Inc | 493 followers on LinkedIn. Agua Inc ™ is an ecological engineering company that utilizes nature-based solutions creating Floating Wetlands #abis | AGUAINC is an ecological water and wastewater treatment facility developer and utility operator, that provides cost effective and energy efficient solutions for municipalities around the world. At AGUAINC, we seek to overcome conventional water treatment limitations while raising the standards for sustainability and treatment quality. Our systems require little energy, are chemical free, and are more affordable than conventional solutions.