BioCheck, Inc., headquartered in Pleasant Hill, California, was established in April 1997. In August 2021, the company expanded its global footprint by acquiring DRG International, which includes operations in the USA, Germany, Russia, Poland, and the Czech Republic.

BioCheck operates under strict quality systems, holding ISO 13485 certification and operating under Good Manufacturing Practices (GMP) aligned with U.S. FDA 21 CFR Part 820. As a global innovator in in vitro diagnostics, we focus on the design, development, and manufacturing of high-quality in vitro diagnostic (IVD) products. We specialize in creating high-quality diagnostic assays, reagents, and OEM products that support clinical laboratories, research institutions, and health care systems worldwide.

With decades of combined expertise in assay development, manufacturing, and regulatory compliance, we deliver reliable IVD solutions that enhance patient care and accelerate scientific discovery.

Mr. Roy Paxton Yih serves as the Chief Executive Officer and Chairman of BioCheck and DRG. He oversees the global organization with a focus on driving strategic growth, optimizing operations, and advancing patient care worldwide. His vision centers on decentralizing diagnostic testing to expand access and empower patients and healthcare providers with rapid, actionable results. By enabling earlier decision-making and more effective treatment monitoring, these diagnostic solutions aim to improve long-term outcomes and quality of life.

Mr. Yih brings over 30 years of proven leadership from his previous role at Biocare Medical LLC, a global innovator in IHC reagents and instrumentation serving hospitals, pharmaceutical companies, reference laboratories, and research institutions. Under his leadership, Biocare earned a reputation for delivering high-quality IHC products that support accurate and timely cancer diagnostics.

With a steadfast commitment to innovation, accessibility, and improving patient outcomes, Mr. Yih continues to guide BioCheck and DRG toward a future where better diagnostics lead to better lives.