EM4, LLC

EM4 is located in Boston, Massachusetts. We work with OEM customers worldwide, providing photonic solutions, components, assemblies and subsystems often deployed in harsh environments. Our engineering expertise is spearheading advancements and transformations across various application sectors and markets. Over a couple of decades, we've established a reputation for delivering products that are challenging to manufacture, boast superior quality, and offer extended service lifetimes. The extensive range and depth of our technological skills enable us to provide our clients with the manufacturing solutions they require.