JenKem Technology offers custom synthesis services with decades of expertise in research, development and manufacture of innovative PEG and monodisperse PEG derivatives, PEG co-polymers, PEGylated conjugates, PEG-Lipids and LNP formulation, and Fatty Acid Side Chains for drug delivery. JenKem Technology’s products support 27 commercial drugs, vaccines, and medical devices, and more than 90 innovative drug and medical device projects worldwide in various clinical stages, as of 2025.

JenKem Technology has patented many PEG-related technologies and respects the intellectual property of others. As of December 2025, JenKem Technology has 158 granted patents, 82 published patent applications, several DMFs filed with the FDA and China CDE, and many other innovative technologies under development.

JenKem Beijing R&D Custom PEGs

Our dedicated and experienced technical support experts may be enlisted to assist you to identify the right high quality PEGs for your project. JenKem Technology’s R&D group will develop and synthesize your PEG, monodisperse PEG, PEG co-polymers, LNP reagents, fatty acid side chains to meet the unique needs of your project with the highest quality in the shortest possible time. Custom PEGylated conjugates are provided via dedicated PEGylation services.

JenKem Technology manufactures GMP grade PEG derivatives and bulk orders via custom synthesis, offering the opportunity to match customers’ special quality requirements. JenKem Technology is capable of development and synthesis of GMP grade PEG derivatives under ISO 9001 and ISO 13485 certified quality management system, following ICH Q7 guidelines for GMP manufacture.

For detailed information about JenKem Technology’s custom PEG synthesis services, please contact us at tech@jenkemusa.com. For information about our current catalog PEG products, please visit our PEG Products pages on the left. For made-to-order products that may be in stock visit this link regularly.

Founded in 2001 by experts in PEG synthesis and PEGylation, JenKem Technology specializes exclusively in the development and manufacturing of high quality polyethylene glycol (PEG) products and derivatives, and related custom synthesis and PEGylation services. JenKem Technology is ISO 9001 and ISO 13485 certified, and adheres to ICH Q7 guidelines for GMP manufacture. The production of JenKem® PEGs is back-integrated to in-house polymerization from ethylene oxide, enabling facile traceability for regulated customers. JenKem Technology caters to the PEGylation needs of the pharmaceutical, biotechnology, medical device and diagnostics, and emerging chemical specialty markets, from laboratory scale through large commercial scale.