Greig is an accomplished and purpose-driven life sciences leader with more than 20 years of experience in highly regulated, often publicly listed organisations across pharmaceuticals, vaccines and biopharmaceutical manufacturing. He brings a distinctive blend of strategic vision, operational discipline and personal conviction to his role at CPI. Joining CPI’s Executive Leadership Team in January 2026, Greig leads the organisation’s Pharma and HealthTech portfolio, helping to accelerate the scale-up of breakthrough products and technologies that improve patient outcomes, strengthen UK health resilience and translate world-class science into real-world impact.

Before joining CPI, Greig served as Managing Director at Valneva Scotland, where he led major national and international initiatives, strengthened organisational performance and built high-performing teams. His career spans executive leadership roles across the UK, Europe, North and South America, and reflects a strong track record in transforming organisations, driving safety and quality excellence, and creating inclusive, high-impact cultures where people are trusted, developed and inspired to do their best work.

Greig is passionate about empowering people and creating environments where innovation can thrive. Throughout his career, he has actively supported and hired through multiple apprenticeship schemes, championing early-career talent and the skills pipelines needed for the future of UK science, technology and manufacturing. He has also contributed at board level to the Science and Industry Partnership, reinforcing his commitment to connecting education, industry and opportunity. Greig champions cross-sector collaboration across academia, industry, government and investors to unlock new opportunities across therapeutics, medical devices, digital health and AI-enabled technologies.

He serves as Chair of the Scottish Patient Awareness Council and joined the Board of Scottish Enterprise in January 2026. Diagnosed with type 1 diabetes at 17 after surviving malaria as a child, Greig has a deeply personal understanding of how innovation can change lives. Now using an artificial pancreas system to manage his own condition, he is passionate about marrying medical technology with targeted therapies to improve the quality of life for people living with chronic diseases.

Greig was recently appointed CEO of CPI and will assume full accountability on 1st December taking over from Frank Millar.