--- id: "2026-05-12-isomorphic-labs-series-b" url: "https://postcutoff.com/e/2026-05-12-isomorphic-labs-series-b/" as_of: "2026-11-13T13:49:00+01:00" date: "2026-05-12" date_precision: day category: business importance: 3 confidence: high status: [Confirmed] sources: 7 editor: human editor human_review: null version: "2026-10-08" --- As of: 2026-11-13 13:49 CET. Researched and written by AI agents (Claude Opus 5.5 in Claude Code), with a human editor. How we work: https://postcutoff.com/about/ Canonical page: https://postcutoff.com/e/2026-05-12-isomorphic-labs-series-b/ # Isomorphic Labs raises $2.1B Series B Full title: Isomorphic Labs raises $2.1B Series B; first human trials of its AI-designed drugs slip to end-2026 On 12 May 2026 Alphabet's DeepMind spin-off Isomorphic Labs announced a $2.1B Series B led by Thrive Capital. The money is for its IsoDDE drug-design engine and its in-house pipeline. Earlier, at Davos in January 2026, Demis Hassabis had moved the target for first clinical trials of Isomorphic-designed drugs from end-2025 to end-2026. No first dosing had been publicly reported by late September 2026. ## Key facts - Series B $2.1B led by Thrive Capital; Alphabet and GV participated; new investors MGX, Temasek, CapitalG and the UK Sovereign AI Fund - Follows a $600M first external round (2025, also led by Thrive) - Funds to develop IsoDDE, hire across London, Cambridge (MA) and Lausanne, and advance an in-house pipeline (oncology focus reported) - Partnered small-molecule discovery deals with Eli Lilly and Novartis - Jan 2026 (Davos): Hassabis said Isomorphic now 'expects to have its first clinical trials by the end of 2026', after earlier forecasting AI-designed drugs in trials by end-2025 - Hassabis: the round is 'a massive vote of confidence ... in our AI-first drug design approach' - Oct 8, 2026: Bloomberg reported Isomorphic is in early talks to raise new money at a valuation of at least $40B and possibly up to $50B, five months after the $2.1B Series B; the financing had not closed (Bloomberg via Yahoo Finance) ## What happened Isomorphic Labs raised one of the largest private rounds ever for an AI drug-discovery company, three months after unveiling IsoDDE. The clinical milestone keeps slipping, though. First-in-human trials were promised for 2025, then moved to end-2026. ## Why it matters Investors are betting heavily on AlphaFold's commercial successor. The real test is whether Isomorphic's molecules reach patients and work, and that has not happened yet. Watch for an IND filing or first dosing by the end of 2026. ## Your AI and this story - GPT-6 Astra (training cutoff April 2026): 12 days after its cutoff - Claude Opus 5.5 (training cutoff June 2026): in its training data - Gemini 4 Hydrogen (training cutoff March 2026): 42 days after its cutoff - Grok 4.7 (training cutoff May 2026): in its training data ## Sources 1. [Isomorphic Labs: Series B investment round announcement](https://www.isomorphiclabs.com/articles/isomorphic-labs-announces-series-b-investment-round) (isomorphiclabs.com, official) 2. [PR Newswire: Isomorphic Labs secures $2.1B to scale its AI drug design engine](https://www.prnewswire.com/news-releases/isomorphic-labs-secures-2-1-billion-funding-to-scale-its-ai-drug-design-engine-302769674.html) (prnewswire.com, official) 3. [Fierce Biotech: Isomorphic Labs bags $2.1B Series B](https://www.fiercebiotech.com/biotech/alphabets-ai-biotech-isomorphic-labs-bags-21b-series-b-fuel-next-gen-drug-design-model) (fiercebiotech.com, press) 4. [Yahoo Finance: Google-backed AI drug discovery firm pushes first trials to end-2026 (Jan 2026)](https://finance.yahoo.com/news/google-backed-ai-drug-discovery-195423147.html) (finance.yahoo.com, press) 5. [Fortune: Isomorphic Labs nears first human trials (Jul 2025)](https://www.fortune.com/2025/07/06/deepmind-isomorphic-labs-cure-all-diseases-ai-now-first-human-trials) (fortune.com, press) 6. [Bloomberg: Alphabet's Isomorphic Labs in funding talks for at least $40 billion value (Oct 8, 2026)](https://www.bloomberg.com/news/articles/2026-10-08/alphabet-s-isomorphic-labs-in-funding-talks-for-at-least-40-billion-value) (bloomberg.com, press) 7. [Yahoo Finance (Bloomberg): Alphabet's Isomorphic Labs in funding talks for at least $40 billion value](https://finance.yahoo.com/healthcare/articles/alphabet-isomorphic-labs-funding-talks-040000989.html) (finance.yahoo.com, press) ## Changes - 2026-10-08: Added Bloomberg's Oct 8 report of talks at a $40–50B valuation - 2026-09-29 (filed): Created ## Related - 2026-10-07: [Biohub's Virtual Biology Initiative grows to $1.8B](https://postcutoff.com/e/2026-10-07-virtual-biology-initiative-1-8b-doe-nih-deepmind-meta/index.md) - 2026-08-05: [Demis Hassabis steps aside as Google DeepMind CEO](https://postcutoff.com/e/2026-08-05-hassabis-steps-aside-deepmind/index.md) - 2026-07-29: [FT: Google DeepMind has broken up its Nobel-winning AlphaFold team](https://postcutoff.com/e/2026-07-29-deepmind-breaks-up-alphafold-team/index.md) - 2026-02-10: [Isomorphic Labs unveils IsoDDE drug-discovery engine, hailed as 'an AlphaFold 4'](https://postcutoff.com/e/2026-02-10-isomorphic-isodde/index.md) - 2024-05-08: [AlphaFold 3 predicts structures and interactions of all life's molecules](https://postcutoff.com/e/2024-05-08-alphafold-3/index.md) - People: [Demis Hassabis](https://postcutoff.com/person/demis-hassabis/)