| Founded | 2014 |
|---|---|
| Closed | 2019 |
| Country | USA |
| Sector | Saas |
| Collapse type | Silent Shutdown |
| Founder | Paul Katsen, Aaron Zalki |
Blockspring
"When Google Sheets adds your startup's features for free, your runway disappears."
Quiet closure with no public announcement
Key Events Timeline
Blockspring raised $3.
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