Certified by Founder Lodge 
                                        
                                        Castle Island Ventures
 
                                                 United States  -  Cambridge, Massachusetts 
                                             INVESTOR 
                                            
                                                                                    1 Disclosed Funding Rounds $50,000,000
                                            17 Participating Investments
- 
                                                Operating Status 
                                                
Active
 - 
                                                Last Funding Type 
                                                
Seed
 - 
                                                Company Type 
                                                
For Profit
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                                            Public blockchain and cryptoasset venture firm located in Cambridge, Massachusetts.
                                        
                                        
                                        
                                                                                
                                        
                                        
                                        
                                        
                                                                                
                                        | Company | Date | Round | Raised | 
|---|---|---|---|
   DUST Identity | 
                                                            December, 06 ,2023 | Series B | $40,000,000 | 
   Hidden Road | 
                                                            July, 07 ,2022 | Series A | $50,000,000 | 
   Andrena | 
                                                            February, 28 ,2023 | Series A | $15,000,000 | 
   Arch(US) | 
                                                            August, 23 ,2024 | Unknown | $75,000,000 | 
   Casa Inc. | 
                                                            May, 11 ,2022 | Series A | $21,000,000 | 
   HATA | 
                                                            October, 23 ,2024 | Seed | $4,200,000 | 
   Talos | 
                                                            May, 10 ,2022 | Series B | $105,000,000 | 
   CAT Labs | 
                                                            April, 11 ,2023 | Unknown | $4,300,000 | 
   Surus | 
                                                            February, 26 ,2025 | Seed | $8,000,000 | 
   DUST Identity | 
                                                            December, 06 ,2023 | Series B | $40,000,000 | 
   OpenFX | 
                                                            May, 23 ,2025 | Unknown | $23,000,000 | 
   Arch(US) | 
                                                            August, 23 ,2024 | Unknown | $75,000,000 | 
   Tesser | 
                                                            October, 22 ,2025 | Seed | $4,500,000 | 
   HATA | 
                                                            October, 23 ,2024 | Seed | $4,200,000 | 
   Surus | 
                                                            February, 26 ,2025 | Seed | $8,000,000 | 
   OpenFX | 
                                                            May, 23 ,2025 | Unknown | $23,000,000 | 
   Tesser | 
                                                            October, 22 ,2025 | Seed | $4,500,000 | 
                                                
  DUST Identity
  Hidden Road
  Andrena
  Arch(US)
  Casa Inc.
  HATA
  Talos
  CAT Labs
  Surus
  OpenFX
  Tesser
Cherry Ventures
 
                                            
Blue Bear Capital
Slow Ventures
Climate Capital
Eniac Ventures
                                                                        
                                Helex |  $3,500,000  | (Nov 4, 2025)
                                                                        
                                xMEMS |  $21,000,000  | (Nov 4, 2025)
                                                                        
                                catalyx space |  $5,400,000  | (Nov 4, 2025)
                                                                        
                                Cephia AI |  $4,000,000  | (Nov 4, 2025)
                                                                        
                                Ornn |  $5,700,000  | (Nov 4, 2025)