9 Jul 2026

Alchemab Therapeutics secures £25m Series A extension from British Business Bank to scale antibody drug discovery pipeline for hard-to-treat diseases

Alchemab Therapeutics is a clinical-stage biotechnology company that uncovers protective antibodies from disease-resilient individuals to discover and develop novel therapeutics. Its Resiliome platform combines a large human antibody database with AI-derived algorithms and lab validation to identify antibodies that protect against hard-to-treat diseases.

Alchemab Therapeutics, a clinical-stage biotech uncovering protective antibodies from disease-resilient individuals, has extended its Series A financing with a £25 million (USD $34 million) investment from British Business Bank, the Bank's largest investment in a life sciences company to date. The funding will enable Alchemab to build its clinical pipeline and grow its proprietary antibody dataset to more than a billion sequences.

Alchemab discovers and develops first-in-class drugs through its Resiliome platform, which uses AI-derived algorithms to identify naturally occurring antibodies present in humans with unusual resilience to a range of hard-to-treat diseases. This investment builds on the success of the company's first asset, ATLX-1282, a first-in-class antibody therapeutic in clinical development for amyotrophic lateral sclerosis (ALS) which was licensed to Eli Lilly and has provided validation of the Resiliome approach.

The additional funding brings Alchemab's total Series A investment to date to £109 million, enabling the company to enhance its antibody database from 500 million to a billion antibody sequences and advance additional candidates into clinical development.

We are delighted that British Business Bank has recognised the importance of enabling Alchemab to grow and thrive here in the UK. This investment provides further validation of the sustainable, long-term potential of our drug discovery platform and will enable us to further accelerate our pipeline of first-in-class antibody therapeutics for conditions with significant unmet need.

Jane Osbourn, Co-founder & CEO

The UK life sciences sector has the expertise, creativity and commercial potential to build globally significant biotech companies, and Alchemab is determined to be one of them. This investment by the British Business Bank demonstrates the importance of providing capital to allow innovative biotechs to scale here, and we are proud to be building the company's future in the UK.

Kate Bingham, Managing Partner at SV Health Investors

Alchemab sits at the cutting edge of UK scientific capability, integrating deep sequencing and lab-based validation to harness the body's natural defences against disease. This landmark £25m investment demonstrates our commitment to providing the long-term capital necessary for the UK's most innovative biotech firms to advance complex pipelines in the UK.

Charlotte Lawrence, Managing Director, Direct Equity at British Business Bank

Alchemab is yet another example of the UK's strength in leveraging technology in life sciences. By combining one of the world's largest proprietary antibody datasets with advanced AI, the company has developed a powerful platform with the potential to unlock new treatments. Our investment will help convert promising results into high value medical discoveries.

Carmine Circelli, Investor, Life Sciences at British Business Bank

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