Block Engineering Inc is a leading developer of quantum cascade lasers (QCLs) and mid-infrared laser-based spectrometers. With a focus on life science, security and safety, and industrial applications, Block's innovative products cater to various sectors. In the field of life science, their QCLs are utilized in medical devices for cancer detection, glucose monitoring, breath analysis for infectious disease detection (including Covid), protein characterization, imaging, chemical analysis, and research instruments.

The company's safety and security products serve as an early warning system for chemical attacks and accidental chemical leaks, safeguarding critical infrastructure such as transportation hubs, commercial buildings, and government spaces. Additionally, Block's technology can detect drugs like Fentanyl. They collaborate with prestigious organizations including the US Department of Defense, Department of Homeland Security, and the TSA to develop cutting-edge technologies for detecting explosives residue, chemical warfare agents, and pharmaceutical-based agents.

Block Engineering is headquartered in Southborough, Massachusetts, and has received accolades such as the MILIPOL Paris Innovation Award and the Tibbetts Award for Small Business Innovation Research