We're your people

For more than 120 years, we’ve focused on one thing: making anti-infective medicines the world depends on – reliably, consistently, and at scale.

Who we are

Builtfor continuity

For more than 120 years, we’ve focused on one thing: making anti-infective medicines the world depends on — reliably, consistently, and at scale. We build partnerships and relationships that matter.

The truth is, in this category, supply is not just operational. It’s critical.

Fermentation-based manufacturing is complex. It requires deep expertise, long-term investment, and the ability to manage uncertainty over time. The molecules cannot be rushed — and neither can the decisions behind them.

That’s why our role goes beyond production. We work with you to ensure continuity — anticipating challenges, adapting as requirements evolve, and staying aligned as the landscape shifts.

After all, we're your people.

Read our story

What we do

We are your focused partner inanti-infectives

What matters is not just what we make — it’s how we support you.

Xellia is a global leader in fermentation-based non-beta-lactam anti-infectives, supplying APIs and finished dosage forms to more than 500 pharmaceutical companies across 80 countries.

This is reflected in how we work with you:

Continuity you can rely on. As one of the last Western manufacturers of several essential anti-infective APIs, we provide structurally resilient supply — with EU-based production and a long-standing track record of uninterrupted delivery.

Science that keeps you ahead

We contribute to pharmacopoeia standards, invest in R&D, and stay ahead of regulatory change — so you don’t have to catch up later.

A partnership that works in real time

We stay close to your business — anticipating needs, responding quickly, and solving issues before they escalate.

Learn more

At Xellia, we work at the center of this challenge every day. Here is our perspective on what is at risk, why it matters, and what needs to change.

LATEST STORY

Antiobiotic Supply Chain Resilience

At Xellia, we work at the center of this challenge every day. Here is our perspective on what is at risk, why it matters, and what needs to change.

Products

Our APIs are available all over the world

Our vision is to be the world’s leading supplier of APIs. We're expanding our portfolio, broadening our reach, and building the partnerships to deliver more therapies to more patients around the globe.

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Products