OHD LLLP

OHD LLLP specializes in the design, calibration, and maintenance of precision measuring and control systems, with a strong focus on respiratory protection technology and dosimetry equipment for mission-critical federal operations. The contractor delivers calibrated Quantifit and Aerofit respirator fit-testing systems, performs field calibration inspections, and supports the maintenance of specialized instrumentation used in occupational health and safety programs. Their technical expertise spans electromagnetic and precision device manufacturing, testing laboratory services, and the repair of industrial measurement equipment, demonstrating deep competency in ensuring compliance with NIOSH and OSHA standards for airborne hazard monitoring. A key differentiator is their ability to integrate hardware manufacturing with end-to-end calibration and validation services, ensuring continuous operational readiness of safety-critical systems in high-risk environments. The company maintains a consistent presence with the Department of Defense, supplying equipment and services essential to personnel protection programs across military installations and field operations. They also serve the Department of Justice with similar respiratory safety and calibration support, indicating a pattern of delivering mission-critical health and safety infrastructure to agencies requiring stringent operational reliability. Their work for NASA further underscores capability in high-reliability instrumentation for controlled environments. OHD LLLP’s primary industry focus lies in the manufacturing and servicing of measuring and controlling devices, particularly those used in medical, industrial, and defense applications. They specialize in respiratory fit-testing systems, dosimeters, and related instrumentation, positioning themselves as a niche provider of validated safety equipment rather than a broad-line supplier. Their vertical specialization in occupational health instrumentation distinguishes them in federal procurement markets requiring traceable, certified performance. As a small business structured as an LLLP based in Birmingham, Alabama, OHD LLLP operates without formal government certifications but maintains a focused footprint in defense and justice sector procurement. Their geographic presence supports regional logistics for federal customers, with operations centered on precision equipment lifecycle management from manufacturing through field calibration and repair.