About Us

Full-lifecycle pharmaceutical services, differentiated by true scientific partnership

For more than 50 years, we have delivered expert API development and manufacturing solutions to our customers in a highly differentiated outsourced experience that places equal emphasis on true partnership and scientific excellence. Our customers benefit from our passionate team, our full-lifecycle capabilities, and our unwavering commitment to treating our customers’ molecules as our own.

About Sterling Pharma Solutions

As a small molecule partnership development and manufacturing organisation (PDMO®), Sterling Pharma Solutions delivers comprehensive small molecule services spanning pre-clinical development to full commercial manufacturing. Widely recognised for our collaborative and transparent team, our expertise in complex and hazardous chemistries, and our service-focused customer experience, Sterling is a proven and trusted partner to the world’s most innovative biotechs and leading pharmaceutical companies. ... Read more

Sterling has a 50+ year track record of providing a range of complementary services spanning the entire pharmaceutical lifecycle, from early stage discovery to full commercial roll-out. We are capable of supporting our customers’ projects from grams to tonnes in-house, in a partnership-led service model that ensures full continuity every step of the way. Committed to innovation, we partner with leading academic and technological institutions, through our Technology and Innovation Programme, to apply emerging technologies in our customers’ programmes. Most importantly, we are dedicated to serving as true scientific partners to our customers, providing unrivalled service and support rooted in collaboration and transparency. Read less

We believe that whilst science can be complex, partnerships should be simple. We provide our customers a simple, collaborative way of working marked by transparency and trust.

Our Differentiators


We believe that whist science can be complex, partnerships should be simple. We provide our customers a simple, collaborative way of working marked by transparency and trust.


We have a long history of developing and scaling up chemical transformations of all kinds, with significant experience and expertise in hazardous chemistries.


Our comprehensive services support products at every stage of the product lifecycle, from early-stage discovery to full commercial cGMP manufacture.


Through our Technology and Innovation Programme, we continually evaluate and embrace new technologies to enhance our service offering and provide even greater value to our customers.


We are proud of our 50+ year track record and the rich heritage of our organisation, which have together built a culture of excellence in science and service.


Committed to doing the right thing for our people and planet, we never lose sight of our aim to exceed the expectations of our customers, regulatory bodies, and our stakeholders.

Delivering true scientific partnership

At Sterling, we pride ourselves on being easy to do business with, and we are focused on upholding a simple and collaborative way of working. We are so much more than a traditional CDMO. We are a PDMO®, or partnership development and manufacturing organisation. Differentiated by the three core characteristics of service, passion, and science, we put our customers’ products first to transform the outsourcing experience.

Learn more about our PDMO® approach

Operating world-class facilities

Located at centres of pharmaceutical innovation in the UK, US and Ireland, our facilities are purpose-built to handle your needs from discovery through full commercialisation. With state-of-the-art-equipment and accreditation for cGMP manufacturing, our various sites enable us to flexibly support a broad range of project requirements while ensuring safety, quality, and compliance.

Learn more our global facilities

Providing access to specialised scientific teams

Our team’s passion for what they do is core to who we are. More than 1,350 members strong, our team brings years of collective expertise in chemistry, biology, hazard evaluation, process design, quality assurance, engineering, and more to our customers’ projects. All of them are committed to putting our customers’ products first and delivering superior discovery, development and manufacturing solutions.

Learn more about our services, technologies and experts

Expanding capabilities in emerging technologies

As small molecule complexity continues to rise, continued innovation is fundamental to ensuring our customers’ success. Through our Technology and Innovation Programme, we augment and expand our capabilities around a wide range of emerging technologies that maximise value for our customers. We partner with leading academic and technological solutions to deliver best-in-class solutions in technologies like biocatalysis, continuous processing, and more.

Learn more about our Technology and Innovation Programme

Upholding a culture of care, quality, and compliance

At Sterling, doing the right thing is at the heart of our company culture. Our entire team is committed to upholding the highest standards of safety, sustainability, quality and compliance in our customers’ programmes. Our strong compliance track record is backed by numerous successful regulatory inspections and customer audits, and we are continually embracing new initiatives to raise the bar even further.

Learn more about compliance


Sterling is an Associate Member of the PSCI, which focuses on building responsible supply chains and encourages members to develop, champion and continuously improve responsible business practices.

We are one of many member companies, working towards a vision for ‘excellence in safety, environmental and social outcomes’ for the global pharmaceutical industry.

This is achieved through following the PSCI Principles for Responsible Supply Chain Management, which represent the industry’s expectations of the supply chain and the standards that member organisations are expected to uphold.

The focus is on five key areas:

  • Ethics
  • Labour
  • Health and safety
  • Environment
  • Management systems

Click here to find out more.

Related Pages


Quality and Regulatory

Technology and Innovation Programme


Our Heritage

Related Content


An overview of Sterling Pharma Solutions

One pager

What is a PDMO®?


Scientist Snapshot | Mark Muldowney, Head of Technology and Innovation