Water & Environmental Systems Est., (WESE) started in March, 1996 by its founder and President Mr. Hamad A. Al-Ammari and has became the country's fastest growing water treatment company with 6 branches spanning the countries of Saudi Arabia and Bahrain with more than five thousand (5000) satisfied customers, and has won RainSoft customer's satisfaction award for 5 years in a row.  In addition, WESE has become the largest International Dealer for RainSoft Water Treatment Company – USA and has joined together an alliance to serve the Saudi Arabian and Middle East Market.

Water and Environmental Systems manufacture Commercial, Industrial and large Residential Reverse Osmosis Units in it's factory in Dammam. It has completed many projects successfully and gained unmatched reputation for quality.  WESE has environmental division for Sewage Water Treatment capable of performing projects of different sizes.