
He started Aleph in a pandemic apartment because every finance tool he'd used either felt ancient or tried to pull him out of the spreadsheet. Then he heard no 75 times - and raised a Series B anyway.
Valentina Ratner is the co-founder and CEO of AllSpice.io, the 'GitHub for hardware' that brings version control, collaboration, and automated design review to the engineers who build PCBs, schematics, and bills of materials. An Argentina-born mechanical engineer turned Amazon PM turned Harvard MS/MBA, she launched AllSpice after watching brilliant teams build complex machines on archaic, file-shuffling workflows. In June 2025 she raised a $15M Series A to take the company's AI design-validation agent out of private beta, with customers spanning Blue Origin, Bose, and Tools for Humanity.