Randox Health

Randox Health operates nine clinics across London — from the flagship Great Portland Street location to neighbourhood sites in Chelsea, Kensington, Canary Wharf, and beyond — delivering preventive health assessments that screen up to 350 biomarkers in a single visit. The company is the consumer-facing arm of Randox Laboratories, a Northern Irish diagnostics manufacturer with over four decades of experience supplying analysers to NHS pathology departments worldwide. Every in-clinic test runs on their proprietary Biochip Array Technology, a multiplexed immunoassay platform that processes dozens of markers simultaneously from a single blood sample. The laboratory holds UKAS accreditation under ISO 15189, the international gold standard for medical testing quality. Packages range from focused single-marker checks starting under 50 pounds to the Signature Platinum Plus at over 4,600 pounds, which pairs 350-plus blood biomarkers with a resting ECG, body composition analysis, full genetic cancer and cardiac screening, and consultations with a GP and genetic counsellor. Most comprehensive packages include a free retest at six months, encouraging longitudinal tracking rather than one-off snapshots. Express results are available from two hours at the Great Portland Street clinic for selected tests, while standard turnaround runs from 24 hours to 10 working days depending on the panel. Appointments are booked online or via the Randox Health app, which also serves as the primary results delivery platform. The company is CQC registered and accepts self-pay patients directly, with 0% interest payment plans available for up to 10 months through partner platforms.