Founded in 1987 in Zaventem, Belgium, ISI established itself as a specialist in the international distribution of short-lifetime products for the radiopharmaceutical market.

As a licensed carrier and storage facility certified by the Belgian nuclear authority (FANC) for the transport of radioactive and industrial isotopes across Europe, ISI developed deep operational experience in one of the most demanding logistics niches.

Today, the same team, drivers and facilities continue under the Life Couriers name. Strengthened by a global radiopharma network and customer base, they continue their mission to serve patients across the world with vital radiopharma deliveries.


Journey and Milestones

The journey of ISI, from founding to growth, acquisition and rebranding.

ISI - Isotopes Services International
Founding
ISI is founded in Zaventem, Belgium.
1987
ISI - Isotopes Services International
Growth
ISI grows to be a core pillar of the Radio Pharma Logistics Group (RLG), alongside ISOLife and ISOVital (France).
1987-2023
Life Couriers
Acquisition
Life Couriers acquires the Radio Pharma Logistics Group, including ISI. A major milestone in building a global-leading radiopharma logistics organization.
2024
Life Couriers
Rebranding
ISI rebranded to Life Couriers, consolidating its identity with the broader Life Couriers global group.
2025

What made ISI stand out to Life Couriers

Safety and compliance

At the heart of ISI’s operations was a strong commitment to safety, regulatory compliance and reliability.

Radiopharma expertise

ISI is certified and licensed to store and transport radiopharmaceuticals and radioactive isotopes – a testament to its high‐standard compliance culture.

Time-critical deliveries

The company’s operations focus on short‐lifetime products: meaning high time-sensitivity, stringent cold-chain and rapid delivery demands.

Cultural alignment

ISI’s culture and deep understanding of the mission: behind every shipment is a vital health or life science application for a patient.

ISI now Life Couriers

ISI (Isotopes Services International) built a robust distribution network for radiopharmaceuticals and industrial isotopes throughout Europe, leveraging its Belgian hub. Now this legacy continues on as part of the global Life Couriers Radiopharma network.


How this acquisition strengthened Life Couriers' global vision

The acquisition of ISI by Life Couriers brings together a proven Belgian specialist with a global logistics network:

Global Radiopharma footprint meets local excellence

Life Couriers offers global Radiopharma logistics; ISI brings deep regional expertise in Belgium and Europe for isotope transport.

Depth of specialisation

ISI’s proven track record in short‐lifetime, highly regulated isotopes complements Life Couriers’ broader portfolio in cell therapy, biologics, biosciences and pharma freight.

Enhanced service for clients

Clients of ISI will benefit from the global systems, investments and brand of Life Couriers, while preserving the operational reliability they’re used to.

Shared values

Both companies emphasise that logistics is not just about freight – it’s about enabling health, care and research.



Looking forward: The Life Couriers advantage

As ISI becomes fully integrated under the Life Couriers brand, you can expect:

Global standards

Consistent quality and compliance standards, elevated by global best practices.

Elevated services

Efficient, transparent services, improved tracking and digital tools.

Increased range of services

Broader service offer and scalability, without compromising the agility and local responsiveness you value.

Continuity of trusted relationships

The same teams and same commitment, now backed by a global network.


Continuing a legacy of radiopharma excellence

Since 1987, ISI provided radiopharma and nuclear medicine pioneers with the highest quality transport services inside Belgium and across Europe.

Those values now live on in Life Couriers, a global group rooted in service excellence and supporting patients in need. We strive to grow our position as the global leaders in radiopharma logistics, continuing on the legacy of ISI and the other legacy companies that paved the way.


Discover the Life Couriers service range

Life Couriers is the global leader in saving lives and trusted advocate for the good of patients, with the broadest service portfolio on the market.