Wilhelm Haselmeier

Haselmeier is a drug-delivery device company focused on the design, development, industrialization, and manufacture of subcutaneous self-injection systems for pharmaceutical and biotechnology customers. Its portfolio includes pen injectors, autoinjectors, reconstitution systems, and connected adherence-enabled delivery solutions, with products such as D-Flex and PiccoJect. The company operates as a medmix brand and provides services spanning concept design, prototyping, testing, manufacturing, packaging, labeling, and serialization. Historically known as Wilhelm Haselmeier, the business was acquired by Sulzer in 2020 and now sits within medmix following the 2021 spin-off. It is not a therapeutic drug developer; rather, it is a commercial medical device and drug-delivery partner serving life science companies.