This is the list of the largest public listed companies in the Pollution & Treatment Controls industry from Australia by market capitalization with links to their reference stock.
| Rank | Company | Market Cap (USD) | Country | Sector | Industry | 
|---|---|---|---|---|---|
| 1 | Waterco Limited | $117.5 M | Australia | Australian Industrials | Australian Pollution & Treatment Controls | 
| 2 | The Environmental Group Limited | $82.1 M | Australia | Australian Industrials | Australian Pollution & Treatment Controls | 
                                Company Profile:
                                
                                    Waterco Limited
                                
                            
                            
                                Market Cap (USD):
                                
                                    
                                        $117.5 M
                                    
                                
                                
                            
                            
                                    Country:
                                    
                                        Australia
                                    
                                
                                    Sector:
                                    
                                        Australian Industrials
                                    
                                
                                    Industry:
                                    
                                        Australian Pollution & Treatment Controls
                                    
                                
                                Company Profile:
                                
                                    The Environmental Group Limited
                                
                            
                            
                                Market Cap (USD):
                                
                                    
                                        $82.1 M
                                    
                                
                                
                            
                            
                                    Country:
                                    
                                        Australia
                                    
                                
                                    Sector:
                                    
                                        Australian Industrials
                                    
                                
                                    Industry:
                                    
                                        Australian Pollution & Treatment Controls