CAPESYM INC

Capesym, Inc. specializes in the research, development, and manufacturing of advanced radiation detection systems and precision measuring instruments for defense and homeland security applications. The company’s core expertise lies in the design and fabrication of large-form-factor scintillators, ruggedized dosimeters, and high-performance photomultiplier tube assemblies, leveraging materials such as LaBr₃ and CdZnTe crystals. Their technical focus includes radiation sensor engineering, crystal growth optimization, and the integration of scintillation detectors into field-deployable systems, with proven success in Phase II SBIR and STTR programs focused on next-generation nuclear and radiological sensing technologies. Capesym differentiates itself through its ability to transition laboratory-scale innovations into ruggedized, mission-critical hardware compliant with stringent military and federal standards. The company maintains a strong and consistent relationship with the Department of Defense, delivering R&D services and specialized instrumentation for nuclear detection, radiation monitoring, and sensor system modernization. A single award from the Department of Homeland Security confirms engagement in similar high-consequence sensing applications, indicating a trusted position in national security sensor development. Capesym’s primary industry focus is in physical and engineering sciences research (NAICS 541715), where it advances novel detector technologies, complemented by targeted manufacturing in analytical laboratory instruments (334516) and other measuring devices (334519). This positions the firm as a niche provider bridging R&D innovation with precision hardware production for defense and security sensors. As a small business (2L structure) headquartered in Natick, Massachusetts, Capesym operates without federal certifications but demonstrates deep technical credibility through repeated DoD contract awards. Its geographic proximity to defense research hubs enhances its ability to collaborate with government labs and defense contractors on advanced sensing projects.