Skip to content

About us

SERO – dedicated to laboratory quality since 1963

Every day, patients around the world have their blood and other biological fluids analysed by laboratories, the results of which provide doctors with a basis for clinical diagnosis. The quality of this diagnosis depends on the reliability of the analyses and therefore on the laboratory’s quality assurance (QA) system. Quality control (QC) materials are at the heart of any QA system, hence the importance of using QC materials that the laboratory can rely on. That is why SEROs mission is to improve patient care by contributing to analyses that give reliable and comparable results from day to day, and between laboratories.


Founded in 1963 by Professor Dr. med. Lorentz Eldjarn, SERO became a world-renowned pioneer in quality assurance in laboratory medicine. Our first product Seronorm™ was one of the first commercially available QC materials in the world. Professor Dr. med. Eldjarn’s extensive professional knowledge and passionate interest in laboratory quality assurance resulted in a company that is passionately dedicated to quality controls. Today, several decades later, our materials have gained a worldwide reputation for their high quality.

Trust through expertise

QC Expert
Over the years, we have developed extensive expertise in the development and production of QC materials, especially in the fields of clinical chemistry and immunochemistry. The number of components incorporated into these products has grown in order to fulfil the needs of the rapidly evolving field of laboratory medicine.

Quality through specialisation
Producing QC materials is not just one of our activities; it is our only production activity. This gives us the knowledge, competence, dedication and technical expertise to produce world-class products that have been present for decades in international markets, and particularly in quality-demanding markets like Scandinavia, Germany and Japan, the latter being our most important export country.

Highly socially responsible
Ethical values are fully integrated into everything we do, from the purchase of raw materials to how we establish and maintain customer relations. These ethical values, along with our code of conduct to which our suppliers adhere, are proof of our commitment to corporate social responsibility.

“SERO is proud of more than half a century of expertise and dedication to providing high quality and commutable control materials to ensure accuracy and reliability of testing in medical laboratories.”
Knut Eldjarn, Chairman of the SERO Board and son of the SERO’s founder

Trust through quality

From pioneer to the forefront of the industry
By delivering a high level of quality since 1963, SERO has become one of Europe’s largest QC producers, with a yearly production of more than 2 million vials. The launch in 2002 of Seronorm™ Immunoassay – the IVD industry’s first truly consolidated Immunochemistry QC material – has significantly contributed to meeting an important need of the laboratory community, as having many components in a single vial helps save money, time and space. SERO is now recognised as one of the international leaders in the field of immunoassay and cardiac controls.


Giving you options
Our production facilities have the capacity and flexibility to produce small, medium-sized and even very large batches. We manufacture liquid and freeze-dried, single and multi-component human-based products in order to meet the
different needs of IVD organisations and medical laboratories.


Consistent quality
Highly controlled manufacturing processes, all product-related activities (purchasing, R&D, production including lyophilisation, accredited laboratory, logistics) under the same roof, the strict selection of raw materials, a well-established and reliable production process, and our high level of expertise are our main assets for meeting our partners’ and market needs, as well as ensuring the highest level of quality and consistency from batch to batch. The high, consistent quality – one of our main characteristics – is deeply appreciated by our qualityconscious customers, which include large, international laboratory organizations, highly reputable hospital laboratories, as well as a large number of IVD organisations, including several of the top ten IVD companies in the world.

Trust through partnerships

Long-term partnerships
As we are an independent company without any activity that competes with our customers, we have an excellent starting point for trusted partnerships. Through an unchanged family ownership since our foundation and a controlled growth over several decades, we have established a corporate solidity and stability that forms the basis for the many long-term partnerships we maintain with our different customer groups: IVD companies and organisations, distribution partners and end users. This stability is further strengthened by the competence and long-term commitment of our employees, whose contributions are essential across all parts of the organisation and key to delivering the quality and reliability our partners value.


Customer orientation
Our philosophy is to be very close to our customers, whether they are end users, distributors or B2B partners. We have short decision lines that give us flexibility and allow us to focus on our customers’ needs. No matter where you are based in the world, you will appreciate our timely feedback and our committed follow-up!


Leading distributor in Scandinavia
We distribute directly to the Nordic countries allowing local laboratories to get
straight access to our expertise as the producer. This along with the quality of both our support and our products have made SERO a leading QC distributor in one the most qualityconscious laboratory markets in the world.


Global partner
We collaborate with partners in more than 60 countries and more than 95% of our
business consists of export. By choosing us as your QC partner, you get access to talent and diversity through highly skilled employees with an international orientation and background. To deliver you trust in a bottle.

“Based on the 15-year relationship we have with SERO, the quality of their products has always been perfect, they have a good level of customer service and their price to quality ratio is excellent.”
Long-term customer

a group of bottles and vials sitting on top of a table .

Areas of expertise

SERO's product philosophy reflects our mission to improve patient care by contributing to analyses that give reliable and comparable results from day to day, and between laboratories.