Cradle secures $73 million to advance AI-powered protein design

A revolutionary project using language models.

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Biotech startup Cradle has raised $73 million to expand its labs and team, aiming to make AI-powered protein design more accessible. Founded in 2022, the company uses language models to analyse proteins, often described as “an alien programming language,” to suggest modifications that improve functionality, such as heat resistance or manufacturability.

Cradle’s software has gained traction among biotech and pharmaceutical companies by reducing the time and cost of experimental rounds, which can be both expensive and unpredictable. Its simple SaaS model eliminates concerns about royalties or intellectual property, offering a streamlined approach compared to competitors that co-develop drugs or processes.

Despite being a software provider, Cradle maintains a laboratory in Amsterdam to validate protein designs and build datasets to refine its models. The latest funding, led by IVP with participation from Index Ventures and Kindred Capital, will support lab expansion and further hiring. CEO Stef van Grieken aims to scale Cradle’s tools to reach a million scientists worldwide.