CelLBxHealth plc, a medical diagnostic company, develops cancer diagnostics products in the United Kingdom, Europe, North America, and internationally. The company develops Parsortix PC1 systems, a medical device for the capture and harvest of intact circulating tumour cells (CTCs) from metastatic breast cancer patient blood for subsequent user-validated downstream analysis; and Parsortix PR1 system captures and harvests circulating tumour cells from blood. It also provides Portrait+ CTC Staining kit, a ready-to-use laboratory kit with analytical sensitivity and specificity for the identification, characterization, and enumeration of epithelial and mesenchymal circulating tumour cells; and CellKeep Slide, a CTC harvesting technology. In addition, the company offers laboratory services, including CTC enrichment and liquid biopsy analysis services; Portrait Flex, an immunofluorescence assay for the identification of epithelial, mesenchymal, and epithelial-to-mesenchymal transition; DNA damage response; Portrait PD-L1, evaluates CTCs; and custom CTC assays. CelLBxHealth plc has a strategic partnership with BioView Ltd to develop a human epidermal growth factor receptor 2 assay kit for breast cancer; and agreement with NuProbe USA, Inc. to use pan-cancer next generation sequencing (NGS) panel. The company also has a research collaboration with The Royal Marsden NHS Foundation Trust. The company was formerly known as ANGLE plc and changed its name to CelLBxHealth plc in October 2025. CelLBxHealth plc was founded in 1994 and is based in Guildford, the United Kingdom.