PUBLISHER: Grand View Research | PRODUCT CODE: 2067545
PUBLISHER: Grand View Research | PRODUCT CODE: 2067545
The global companion diagnostics market size was estimated at USD 9.56 billion in 2025 and is projected to reach USD 20.05 billion by 2033, growing at a CAGR of 10.07% from 2026 to 2033. Growth is supported by increasing demand for precision medicine and the rising prevalence of cancer, cardiovascular diseases, and autoimmune disorders, which are contributing to the need for targeted therapies.
The transition from a one-size-fits-all treatment approach to personalized medicine continues to support the expansion of the companion diagnostics market. In addition, pharmaceutical companies are increasingly integrating companion diagnostics into drug development pipelines to improve the success rate of novel therapeutics, further contributing to the growth of the companion diagnostics industry.
Rapid advancements in diagnostic technologies are supporting the expansion of the companion diagnostics industry. Innovations in next-generation sequencing (NGS), polymerase chain reaction (PCR), and digital pathology have improved the accuracy and efficiency of biomarker identification. These technologies enable faster and more precise detection of genetic mutations and protein expression, which are essential for personalized treatment decisions. In addition, artificial intelligence (AI) and machine learning (ML) are enhancing diagnostic accuracy and data interpretation, supporting more informed clinical decision-making. The growing adoption of these advanced diagnostic tools across research laboratories and healthcare institutions is contributing to market growth, as providers increasingly focus on delivering precise and data-driven patient care.
Regulatory support and favorable reimbursement policies are also contributing to the market growth. Government agencies such as the U.S. Food and Drug Administration (FDA) and the European Medicines Agency (EMA) have established clear regulatory pathways to facilitate the approval of companion diagnostic tests alongside targeted therapies. The increasing number of FDA-approved companion diagnostics is indicative of the growing acceptance of personalized medicine. For instance, in October 2024, Roche announced that its VENTANA Assay had become the first immunohistochemistry (IHC) companion diagnostic approved by the U.S. Food and Drug Administration (FDA) for assessing CLDN18 protein expression in tumors of patients with gastric or gastroesophageal junction adenocarcinoma. This approval enables eligible patients to receive treatment with Astellas' targeted therapy, VYLOY. Additionally, reimbursement policies are evolving to accommodate the cost of these advanced diagnostics, making them more accessible to patients. As regulatory bodies continue to support the co-development of drugs and diagnostics, pharmaceutical and biotech companies are investing heavily in developing new companion diagnostic tests to enhance treatment precision and market penetration.
The rising prevalence of oncology-related diseases is another significant factor driving the growth of the companion diagnostics industry. Cancer remains one of the leading causes of death worldwide, and companion diagnostics play a vital role in oncology treatment by identifying genetic mutations that guide the selection of targeted therapies. Cancer remains a significant health challenge and a leading cause of mortality in the 21st century. According to a study published in The Lancet in September 2025, findings from the Global Burden of Disease (GBD) 2023 study indicate that cancer burden was assessed across 47 cancer types in 204 countries and territories from 1990 to 2023, with projections extending to 2050. Cancer was estimated to be the second leading cause of death globally in 2023, following cardiovascular diseases, with total cancer-related deaths projected to exceed 18 million by 2050.
Companies such as Roche Diagnostics, Thermo Fisher Scientific, and Qiagen are actively investing in companion diagnostics for various cancer types, including lung, breast, and colorectal cancer. The increasing incidence of these cancers has driven a greater demand for early and accurate diagnosis, prompting healthcare providers to integrate companion diagnostics into routine clinical practice. As precision oncology continues to gain traction, the market for companion diagnostics is expected to expand further, driven by the need for better treatment outcomes and reduced healthcare costs.
Global Companion Diagnostics Market Report Segmentation
This report forecasts revenue growth at the global, regional, and country levels and provides an analysis of the latest industry trends in each of the sub-segments from 2021 to 2033. For this study, Grand View Research has segmented the global companion diagnostics market report based on product & service, indication, technology, sample type, end use, and region: