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D44 Ventures (operating as Dragonfly 44 Capital) is a neuroscience-focused fund building out a clinician network to close the development gap in brain health. The firm invests in neuroscience, brain health, BCI, and neurotech companies, leveraging a professional and clinician network to help portfolio companies grow. D44 delivers capital solutions and strategic advisory services to companies in neurotech, cognition, psychiatry, mental health, behavioral health, neurological conditions, and sleep, with a particular focus on private, preclinical companies with novel assets, strong IP, and differentiated development strategies — including next-generation neuropsychiatric drug development and ibogaine-related compounds.
Notable quotes
“We believe that the real value in this field will not be captured only by the most visible public companies or the loudest narratives and instead still mostly sits in private, preclinical companies with novel assets, strong IP, and thoughtful development strategies.”
“In our view, this is one of the best moments to be evaluating the space. Policy is moving. Pharma is engaging. The capital markets are paying attention again. But the field is still early enough that many of the most compelling opportunities remain under-followed and asset-driven.”
“Meaningful progress in this field depends on multidisciplinary, in-person dialogue. When those conversations take place in nature, away from the usual pace and distractions, they create the kind of environment where deeper thinking, stronger connection, and better judgment can emerge.”
Team
Joe Hashmall
Team Member
Recent investments
| Company | Round | Size | Date |
|---|---|---|---|
| Circular Genomics | Unknown | — | — |
| Autobahn Therapeutics | Series C | $100m | 2024 |
| Seven Starling | Unknown | — | — |
Frequent co-investors
| VC firm | Deals together |
|---|---|
| ARCH Venture Partners | 1 |
| Newpath Partners | 1 |
| Samsara BioCapital | 1 |
| Canaan Partners | 1 |
| Monograph Capital | 1 |
| Insight Partners | 1 |
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