This is the list of the largest public listed companies in the Oil & Gas Equipment & Services industry from Australia by market capitalization with links to their reference stock.
| Rank | Company | Market Cap (USD) | Country | Sector | Industry | 
|---|---|---|---|---|---|
| 1 | Worley Limited | $5.19 B | Australia | Australian Energy | Australian Oil & Gas Equipment & Services | 
| 2 | DDH1 Limited | $245.9 M (July 1, 2023) | Australia | Australian Energy | Australian Oil & Gas Equipment & Services | 
| 3 | TEK-Ocean Group Ltd | Australia | Australian Energy | Australian Oil & Gas Equipment & Services | 
                                Company Profile:
                                
                                    Worley Limited
                                
                            
                            
                                Market Cap (USD):
                                
                                    
                                        $5.19 B
                                    
                                
                                
                            
                            
                                    Country:
                                    
                                        Australia
                                    
                                
                                    Sector:
                                    
                                        Australian Energy
                                    
                                
                                    Industry:
                                    
                                        Australian Oil & Gas Equipment & Services
                                    
                                
                                Company Profile:
                                
                                    DDH1 Limited
                                
                            
                            
                                Market Cap (USD):
                                
                                    $245.9 M
                                    (July 1, 2023)
                                
                                
                            
                            
                                    Country:
                                    
                                        Australia
                                    
                                
                                    Sector:
                                    
                                        Australian Energy
                                    
                                
                                    Industry:
                                    
                                        Australian Oil & Gas Equipment & Services
                                    
                                
                                Company Profile:
                                
                                    TEK-Ocean Group Ltd
                                
                            
                            
                            
                                    Country:
                                    
                                        Australia
                                    
                                
                                    Sector:
                                    
                                        Australian Energy
                                    
                                
                                    Industry:
                                    
                                        Australian Oil & Gas Equipment & Services