Previously undisclosed pre-seed · Biotech

Atlas Bio discloses $2.5m pre-seed backing

First Momentum Ventures and LEA Partners co-led the earlier round, disclosed alongside the Swiss company’s new seed financing.

An earlier round brought into view

Atlas Bio has disclosed a previously unannounced $2.5 million pre-seed round co-led by First Momentum Ventures and LEA Partners. It announced the earlier financing alongside a separate $10 million seed round on October 27, taking total funding to $12.5 million.

Modelling drug responses

The Basel company builds AI models that simulate patient responses to treatments. Its work helps biopharma teams compare development paths and plan clinical studies. Simon Romanski and Sebastian Bayer founded Atlas Bio in 2024.

Funding history

Previously undisclosed pre-seed · This round$2.5M

Sources

  1. Swiss startup Atlas Bio secures $12.5M to tackle drug development’s 70% failure rate and move beyond animal testingtech.eu · Oct 27, 2026
  2. atlas.bio