Lemna was founded in 1983 to market a patented, environmentally responsible and economical wastewater treatment technology. The easily installed, competitively priced, low maintenance technologies that Lemna pioneered had obvious applications in developing countries and Lemna soon realized the tremendous potential of this growing international market. What began as a means of bringing Lemna’s own proprietary technology to serve new markets, quickly evolved into a unique company with strengths far beyond that of a technology provider. Through its success in diverse and challenging markets Lemna acquired the expertise to develop, design, finance, implement and manage projects of all types in emerging economies throughout the world. Since 1983, Lemna has completed more than 300 infrastructure projects in 16 countries. Currently, Lemna is active in more than 25 countries serving as developer, implementer and financier of projects worth several billion USD of construction.  Lemna parlayed its ability to find successful solutions to client’s needs—regardless of the location or project type—into a multi-national, multimillion-dollar business with a worldwide presence. In 1995, through the incorporation of Lemna International, Lemna made official its growing international presence and, since that time, has grown exponentially into new markets and new sectors.

“Because our projects are complex and can take many years to finish, we emphasize flexibility, quality and discretion. We only consider a project successful if our clients remain our friends and advocates many years after the project is completed.”
—Viet Ngo, President and CEO



Viet Ngo, Lemna’s founder, CEO, came to the United States from Viet Nam as an 18-year-old student of art and engineering.  His unique background and character have fostered a corporate culture that has a deep appreciation for cultural differences and common values, and a company that is nimble, creative and committed to achieving results. 

“We select our projects and clients carefully to optimize our success. Above all, the friendship of those we serve is the foundation of our progress. By protecting their interests and welfare, we enrich our own.”