DiaMed
Corporate brand
UnclaimedSwiss medical technology company founded in 1977, a pioneer of gel-based blood grouping and now the immunohematology business of Bio-Rad Laboratories.
Last updated September 26, 2026
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Overview
DiaMed is a Swiss medical technology company founded in 1977 by experts in laboratory medicine, headquartered in Cressier in the canton of Fribourg. It was created to supply simple, safe and reliable test systems for the clinical laboratory, and it began with liquid-stable enzyme reagents, low-ionic-strength solutions (LISS), liquid coagulation reagents and cell-washing centrifuges. Its decisive breakthrough came in 1988 with the introduction of a gel-based test system that fundamentally changed the methodology of blood group serology, and in the following years DiaMed established itself as a worldwide leader in immunohematology. The company focused on test methods and products in immunohematology, haemostasis, platelet serology and platelet function, haematology, parasitology and infectious diseases, as well as veterinary diagnostics. The group employed roughly 800 people and reported revenue of 271 million Swiss francs in 2006. Since the end of 2007 DiaMed has been majority-owned by the American company Bio-Rad Laboratories, Inc., which acquired 77.7 percent of DiaMed Holding's shares in October 2007. Within Bio-Rad, the DiaMed heritage forms the core of the immunohematology franchise: blood typing products spanning gel and microplate technologies, reagents, red blood cells, automation instruments, centrifuges, incubators, barcoding systems, data management and connectivity software, and quality control for blood group serology. Bio-Rad describes itself as a leading provider of blood typing products, offering platforms, reagents, data management and connectivity solutions that address different blood typing volumes, with high sensitivity and specificity for identifying rare antibodies and red cell antigens. Today the business is presented under the Bio-Rad Immunohematology banner, with product families such as gel blood grouping ABO/D, Rh/K and extended phenotyping, antibody screening and identification, titration and DAT testing, together with the IH-Complete connectivity and quality-control offering. The DiaMed name remains closely associated with the gel card technology that reshaped transfusion medicine laboratories worldwide.
History
DiaMed was founded in 1977 by experts in laboratory medicine with the aim of offering simple, safe and reliable test systems. In its early years the company produced liquid-stable enzyme reagents, low-ionic-strength solutions (LISS), liquid coagulation reagents and cell-washing centrifuges. These products addressed routine needs in clinical laboratories, particularly in blood bank and coagulation testing. The decisive turning point came in 1988, when DiaMed introduced a gel-based test system for blood group serology. This innovation brought about a fundamental change in the methodology used in blood grouping, replacing or supplementing traditional tube testing with a standardized gel matrix that was easier to use and more reproducible. In the years that followed, DiaMed established itself as a worldwide leading company in immunohematology. DiaMed expanded its focus to test methods and products in immunohematology, haemostasis, platelet serology and platelet function, haematology, parasitology and infectious diseases, as well as veterinary diagnostics. The group grew to employ roughly 800 people and reported revenue of 271 million Swiss francs in 2006. In October 2007, Bio-Rad Laboratories, an international manufacturer and supplier of research products and diagnostic systems for clinical laboratories, acquired 77.7 percent of the shares of DiaMed Holding. Since the end of 2007 the company has therefore been majority-owned by Bio-Rad. Under Bio-Rad, the DiaMed immunohematology business has been integrated into Bio-Rad's Clinical Diagnostics division, which serves the blood transfusion, diabetes monitoring, autoimmune and infectious disease testing markets. Bio-Rad is also the world leader in clinical quality control products, services and information systems. Today the DiaMed heritage is visible in Bio-Rad's immunohematology portfolio, marketed under the Bio-Rad Immunohematology banner. The offering includes gel and microplate blood typing platforms, a wide range of reagents for ABO/D grouping, Rh/K and extended phenotyping, antibody screening and identification, titration and DAT testing, red blood cells, automation instruments, centrifuges, incubators, barcoding systems, accessories, connectivity software such as IH-Com, IH-Web and IH-AbID, quality control for blood group serology, the Unity quality-control platform, BRiCare support and a product cybersecurity program. The IH-Complete concept — 'Choose. Connect. Control. Community.' — positions Bio-Rad as a single partner for transforming the immunohematology laboratory.
- 2007
Bio-Rad Laboratories acquired 77.7 percent of DiaMed Holding shares in October; majority ownership since end of 2007.
- 2006
Group employed roughly 800 people and reported revenue of 271 million Swiss francs.
- 1988
Introduction of a gel-based test system that fundamentally changed blood group serology methodology.
- 1977
DiaMed founded by experts in laboratory medicine in Switzerland.
Products and positioning
Leading provider of blood typing products and immunohematology solutions, with gel and microplate technologies, data management and connectivity for transfusion medicine laboratories.
Gel blood grouping ABO/D reagents
Reagents for ABO and D blood grouping using gel technology.
Rh/K phenotyping reagents
Reagents for Rh and K antigen phenotyping.
Extended phenotyping reagents
Reagents for extended red cell antigen phenotyping.
Antibody screening and identification reagents
Reagents for screening and identifying irregular antibodies.
Titration reagents
Reagents for antibody titration.
DAT testing reagents
Reagents for direct antiglobulin testing.
Red blood cells
Red blood cell reagents for immunohematology testing.
Automation instruments
Automated blood typing and screening systems based on gel and microplate technologies.
Centrifuges
Centrifuges for blood bank and laboratory use.
Incubators
Incubators for immunohematology testing.
Barcoding systems
Barcoding systems for sample and reagent tracking.
Connectivity software (IH-Com, IH-Web, IH-AbID)
Data management and connectivity software for immunohematology laboratories.
Quality control for blood group serology
Quality control products and services for blood group serology.
Unity quality control
Quality control platform for laboratory testing.
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