Endocrine hypertension—secondary hypertension driven by hormonal excess—most commonly arises from primary aldosteronism, pheochromocytoma/paraganglioma, Cushing’s syndrome, and thyroid dysfunction. At Southern Medical Supplies Limited (SMSL), we provide a targeted menu of tests for precise work-up and monitoring: aldosterone, direct renin/PRA and ARR for the renin–angiotensin–aldosterone axis; plasma free and urinary fractionated metanephrines/catecholamines (± chromogranin A) for catecholamine excess; AM serum cortisol, ACTH, 1-mg overnight dexamethasone suppression, and urinary/salivary cortisol for hypercortisolism; and comprehensive TSH, free T4/T3 thyroid panels, with adjunct metabolic and electrolyte markers (e.g., potassium). Our portfolio spans ELISA, chemiluminescent immunoassay, molecular, and clinical chemistry formats from an expanded network of trusted global partners—including EUROIMMUN, Ansh Labs, Randox, Streck, Bio-Rad, Abbott, Roche, Siemens Healthineers, Qiagen, bioMérieux, Cepheid, Werfen, Globe Scientific, ELGA LabWater, LW Scientific, Sebia, LTA SRL, Acrobiotech, MAKOL Innovacion Medica, Rayto Life and Analytical Sciences, Diazyme, Hardy’s Diagnostics, and Teco Diagnostics—delivering the sensitivity, specificity, and reproducibility clinicians need to pinpoint causes, tailor therapy, and improve outcomes.