Certified by Founder Lodge 
                                        
                                        Fourth Power
 
                                                 United States  -  Cambridge , MA 
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                                                                                    1 Disclosed Funding Rounds $19,000,000
                                            0 Participating Investments
- 
                                                Operating Status 
                                                
Active
 - 
                                                Last Funding Type 
                                                
Seed
 - 
                                                Company Type 
                                                
For Profit
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                                            Fourth Power is a thermal battery energy storage company. Our technology makes renewable energy an on-demand energy source through utility-scale thermal storage. We can harness today’s wasted
                                        
                                        
                                        
                                                                                
                                        
                                                                                | Date | Round | Raised | Participating Investors | 
|---|---|---|---|
| December, 13 ,2023 | Series A | $19,000,000 | |
| September, 17 ,2025 | Series A | $20,000,000.00 | |
| September, 17 ,2025 | Series A | $20,000,000.00 | 
                                                
 DCVC
                                                                                
 Black Venture Capital Consortium (BVCC)
                                                                                
NT-Tao
 
                                            
Modern Energy
Prozeal Infra Engineering Pvt. Ltd.
 
                                            
Obeo Biogas
 
                                            
Accelergen Energy LLC
                                                                        
                                Helex |  $3,500,000  | (Nov 4, 2025)
                                                                        
                                xMEMS |  $21,000,000  | (Nov 4, 2025)
                                                                        
                                catalyx space |  $5,400,000  | (Nov 4, 2025)
                                                                        
                                Ornn |  $5,700,000  | (Nov 4, 2025)
                                                                        
                                Homecourt |  $8,000,000  | (Oct 30, 2025)