Companion Diagnostics Market Size, Trends, Share, Growth, and Opportunity Forecast, 2025 – 2032 Global Industry Analysis By Type (PCR-Based Assays, NGS Panels, Immunohistochemistry (IHC) Assays, In-Situ Hybridization (ISH) Platforms, Mass Spectrometry-Based Proteomic Assays, and Others), By Application (Oncology, Infectious Diseases, Neurological Disorders, Cardiovascular Diseases, Autoimmune Diseases, Rare Genetic Diseases, and Others), By End-User (Pharmaceutical & Biopharmaceutical Companies, Reference Laboratories & Central Diagnostic Laboratories, Contract Research Organizations (CROs), and Others), and By Geography (North America, Europe, Asia Pacific, South America, and Middle East & Africa)

Region: Global
Published: September 2025
Report Code: CGNHLS1892
Pages: 266

Global Companion Diagnostics Market Report Overview

The Global Companion Diagnostics Market was valued at USD 8,754.7 Million in 2024 and is anticipated to reach a value of USD 24,110.6 Million by 2032 expanding at a CAGR of 13.5% between 2025 and 2032.

Companion Diagnostics Market

In the United States, leading diagnostic firms have scaled up production of high-precision assays and NGS panels, backed by major investments in laboratory expansion, digital pathology platforms, and co-development models with pharmaceutical partners. These capabilities support critical oncology and targeted therapy applications.

The Companion Diagnostics Market spans key industry sectors such as oncology, cardiovascular, infectious diseases, neurology, and autoimmune indications. Technological innovations include next-generation sequencing (NGS) systems, multiplex real-time PCR assays, and digital IHC imaging platforms, enhancing biomarker detection and clinical utility. Regulatory frameworks have evolved to streamline drug–diagnostic co-approval processes, and reimbursement pathways are increasingly aligning around value-based precision medicine. Regionally, North America remains the most active market, while Europe and Asia-Pacific demonstrate growing adoption through healthcare modernization and government-led precision health initiatives. Emerging consumption patterns reveal rising demand among diagnostic labs and pharmaceutical co-developers. The future outlook stays promising with integration of AI-assisted analysis, decentralized testing models, and enhanced payer engagement driving market expansion.

How is AI Transforming Companion Diagnostics Market?

Artificial intelligence is revolutionizing the Companion Diagnostics Market by delivering faster biomarker interpretation, improving assay accuracy, and enhancing clinical decision support. AI-powered image analysis tools can now interpret complex IHC staining patterns with higher consistency, reducing manual review time by up to 40% and enabling rapid identification of PD-L1 and HER2 expressions. In NGS workflows, AI algorithms streamline variant calling and annotation, accelerating reporting timelines across high-volume oncology panels. Real-time machine learning models also assist in sample quality checks, flagging low-quality inputs earlier and conserving valuable resources. Automated assay platforms integrated with AI can predict therapy response based on multi-modal data, supporting more precise drug matching in clinical labs.

These AI enhancements improve operational performance in the Companion Diagnostics Market, allowing laboratories and pharmaceutical partners to process larger volumes with reduced turnaround. Predictive analytics provide real-time insights into assay reliability and lab throughput, enabling proactive management of bottlenecks. Clinical teams receive structured AI-generated reports highlighting key genomic alterations aligned with approved drugs, expediting treatment planning. As a result, patient care workflows become more streamlined, lab efficiency increases, and diagnostic accuracy improves—solidifying AI's strategic role in evolving the Companion Diagnostics Market.

"In mid-2024, an AI-based universal IHC analyzer was validated, showing a Kappa score improvement from up to 0.509 to 0.578 across varied tumor types and stains—enhancing consistency in IHC interpretation across PD-L1 and HER2 markers."

Companion Diagnostics Market Dynamics

The Companion Diagnostics Market Dynamics reflect a convergence of precision medicine, technological advancement, and evolving clinical and regulatory landscapes. At its core, growth is propelled by increasing demand for targeted therapies in oncology, supported by advanced biomarker assays and co-development frameworks. Technological progress in NGS, multiplex PCR, and AI-enabled diagnostics is expanding diagnostic capabilities. Regulatory support—particularly for co-approved drug-diagnostic pairs—fosters faster product launches. The interplay between pharmaceutical firms and diagnostic developers is strengthening, enabling integrated clinical adoption strategies. Meanwhile, regional healthcare modernization drives decentralized testing and lab automation. Overall, these dynamics shape decision-making for investment, clinical integration, and competitive positioning in the Companion Diagnostics Market.

DRIVER:

Expansion of Targeted Oncology Pipelines

The growth of targeted therapy pipelines, especially in solid tumours, heavily fuels the Companion Diagnostics Market. As more oncology drugs require biomarker-guided selection—such as EGFR, HER2, PD-L1—diagnostic developers respond by enhancing multiplex PCR and NGS panels. This evolution supports scalability in clinical trials and routine testing. Cancer remains the leading indication, accounting for over one-third of the market, underscoring its strategic centrality.

RESTRAINT:

Reimbursement and Cost Pressures

Rising costs of advanced assays, including NGS-based panels and digital IHC systems, present challenges in securing reimbursement and pathology adoption. High instrumentation and per-test costs limit deployment in cost-sensitive healthcare systems. Delays in payer approval and variability in coverage—especially in emerging regions—constrain adoption, stalling growth for innovative diagnostics in the Companion Diagnostics Market.

OPPORTUNITY:

Decentralized and Point-of-Care CDx Solutions

The shift toward decentralized testing and point-of-care companion diagnostics opens new opportunities. Portable platforms and simplified assays that deliver rapid biomarker results are gaining traction in community clinics and outpatient oncology centers. This decentralization reduces turnaround time, increases accessibility in underserved regions, and expands market reach beyond centralized labs within the Companion Diagnostics Market.

CHALLENGE:

Fragmented Regulatory and Lab Frameworks

The Companion Diagnostics Market faces complexity around regulatory pathways and lab accreditation. Varying approval requirements across countries, non-harmonized validation standards, and inconsistent lab capabilities create barriers to global deployment. Diagnostic providers must navigate fragmented frameworks and ensure assay consistency, complicating multinational adoption of companion diagnostic solutions.

Companion Diagnostics Market Latest Trends

  • Rise of NGS-Based Multiplex Panels
    Next-generation sequencing panels are increasingly used for multi-biomarker detection, enabling clinicians to test for numerous actionable genetic targets simultaneously—boosting efficiency and precision in oncology diagnostics.

  • Digital Pathology and AI-Powered IHC Interpretation
    Digitized IHC slides paired with AI analysis are enhancing reproducibility across HER2, PD-L1, and other markers, enabling consistent scores and reducing inter-operator variability in diagnostic reporting.

  • Growth in Pharma–Diagnostics Co-Development Models
    More pharmaceutical companies are partnering with diagnostics developers for co-created drug–CDx pairs, facilitating synchronized commercialization and integrated clinical adoption of companion tests.

  • Expansion of Companion Tests into Non-Oncology Areas
    While oncology remains dominant, CDx applications are growing in cardiovascular, neurological, and infectious disease areas, expanding the utility and reach of companion diagnostics.

Segmentation Analysis

The Companion Diagnostics Market is segmented by technology platforms (PCR, IHC, ISH, NGS, others), indication areas (oncology, infectious, neurological, cardiovascular, etc.), and end users (pharmaceutical/biotech firms, reference laboratories, CROs). Technology segmentation reflects diagnostic modality preferences and innovation maturity; indication segmentation reveals therapeutic focus and clinical demand; end-user segmentation shows market control points and adoption channels. These layers are instrumental for stakeholders to align product development, business strategy, and investment with clinical and market needs.

By Type

PCR-based assays remain the most widely used type due to their reliability and rapid turnaround, particularly for solid tumor mutation identification. NGS panels are the fastest-growing segment, driven by demand for comprehensive biomarker profiling and the decline in sequencing costs. IHC assays, including digital and multiplex formats, continue to play a critical role in protein biomarker detection, especially in PD-L1 and HER2 testing. In-situ hybridization platforms serve niche regulatory or spatial biomarker needs. Emerging types like mass spectrometry-based proteomic assays are gaining relevance for complex profiling and non-standard markers.

By Application

Oncology dominates as the leading application area in the Companion Diagnostics Market, providing essential guidance for targeted therapies across cancers like lung, breast, and colorectal. Infectious disease diagnostics are growing, leveraging biomarkers for treatment matching in antiviral therapies. Neurological and cardiovascular applications are emerging as testing capabilities expand into stratified medicine. Other applications, such as autoimmune and rare genetic diseases, are gradually contributing to market diversity and demonstrating expanded test positioning.

By End-User Insights

Pharmaceutical and biopharmaceutical companies are the dominant end-users, driving demand through co-development pipelines and integration of CDx in clinical trials. Reference laboratories and central diagnostic labs represent the fastest-expanding segment, building capacity to deliver multiplex and NGS-based tests with scalability. Contract Research Organizations (CROs) are increasingly incorporating CDx services into trial protocols, facilitating biomarker stratification in multi-site studies. This multi-end-user structure underpins market dissemination, commercialization strategies, and adoption rates.

Region-Wise Market Insights

North America accounted for the largest market share at 41% in 2024; however, Asia-Pacific is expected to register the fastest growth, expanding at a CAGR of 11.2% between 2025 and 2032.

Companion Diagnostics Market by Region

North America’s dominance is driven by strong healthcare infrastructure, high adoption of precision medicine, and advanced genomic testing capabilities. Europe follows closely, supported by regulatory alignment across multiple countries and robust investments in cancer diagnostics. Meanwhile, Asia-Pacific is seeing rapid adoption of companion diagnostics due to rising cancer incidence, improving access to molecular testing, and government support for personalized medicine. South America and Middle East & Africa are emerging markets with growing diagnostic laboratories and increasing collaborations with pharmaceutical companies, creating opportunities for expansion. This regional distribution highlights the dual market dynamic: established dominance in developed markets and accelerated future growth in developing economies.

North America Companion Diagnostics Market

Precision Diagnostics Driving Healthcare Transformation

North America captured nearly 41% share of the global companion diagnostics market in 2024, making it the leading regional hub. The U.S. and Canada are at the forefront, driven by high prevalence of oncology testing and partnerships between diagnostic developers and pharmaceutical firms. Regulatory agencies such as the U.S. FDA have accelerated approval processes for companion diagnostics tied to targeted therapies, enhancing adoption. Key industries fueling demand include oncology, immunology, and rare disease management. The region is also witnessing digital transformation through AI-powered biomarker discovery, integration of next-generation sequencing (NGS), and digital pathology platforms. With supportive reimbursement frameworks and a strong clinical trial ecosystem, North America continues to lead innovation and market deployment.

Europe Companion Diagnostics Market

Innovation and Regulation Shaping Precision Medicine

Europe accounted for about 28% market share in 2024, driven by robust adoption across major countries such as Germany, the UK, and France. The European Medicines Agency (EMA) and national health authorities are key regulatory bodies ensuring safety and harmonization in approvals of diagnostic assays. Growing investment in cancer screening programs and sustainability initiatives, particularly under the EU healthcare digitalization agenda, are further advancing adoption. European laboratories are integrating liquid biopsy platforms and digital genomic testing for faster turnaround. With innovation hubs spread across Germany and the UK, combined with strong healthcare infrastructure and cross-border collaborations, Europe is positioning itself as a leading market for emerging companion diagnostic technologies.

Asia-Pacific Companion Diagnostics Market

Expanding Access and Innovation in Healthcare Diagnostics

Asia-Pacific ranked second in overall growth contribution in 2024, with leading markets including China, India, and Japan. This region is witnessing rapid expansion of diagnostic infrastructure supported by investments in hospital networks, molecular testing labs, and biotechnology parks. China is driving demand with large-scale oncology screening programs, while Japan leads in precision medicine research, and India is expanding affordable molecular diagnostics through public-private partnerships. The region’s strong manufacturing base also supports cost-effective production of companion diagnostic kits. Innovation hubs in Singapore and South Korea are focusing on integrating AI algorithms and cloud-based diagnostic solutions. With increasing patient awareness and government support, Asia-Pacific is emerging as the most dynamic growth center in the companion diagnostics industry.

South America Companion Diagnostics Market

Growing Role of Targeted Healthcare Solutions

South America accounted for nearly 6% share of the global companion diagnostics market in 2024, with Brazil and Argentina being the leading contributors. Brazil dominates due to its advanced healthcare systems and rising demand for oncology testing. Argentina is witnessing growing adoption through partnerships between hospitals and biotech firms. Regional market growth is supported by government incentives for molecular diagnostics, improvements in healthcare infrastructure, and trade agreements that facilitate import of diagnostic equipment. The region is also gradually integrating digital health platforms and telepathology solutions, which enhance accessibility to specialized testing across remote regions. With these developments, South America is strengthening its presence in the global companion diagnostics market.

Middle East & Africa Companion Diagnostics Market

Advancing Personalized Medicine Through Regional Investments

The Middle East & Africa region held 5% market share in 2024, with growth driven by UAE, Saudi Arabia, and South Africa. Demand is largely supported by investments in oncology centers, precision medicine programs, and clinical trials. The UAE and Saudi Arabia are expanding genomic research and encouraging international partnerships to accelerate diagnostic availability. South Africa remains a key hub for laboratory innovation and adoption of companion diagnostics in cancer management. The region is also seeing modernization trends through cloud-based diagnostic systems, AI-assisted pathology, and digital integration of hospital networks. Trade partnerships and favorable local regulations are enabling broader adoption, strengthening MEA’s role as an emerging growth frontier.

Top Countries Leading the Companion Diagnostics Market

  • United States36% share
    Strong dominance due to advanced healthcare infrastructure, high adoption of genomic testing, and early regulatory approvals for companion diagnostics.

  • China14% share
    Rapid growth fueled by large-scale oncology screening programs, government funding, and expanding biotechnology research ecosystem.

Market Competition Landscape

The global companion diagnostics market is highly competitive, with over 60 active companies ranging from multinational diagnostic leaders to emerging biotech innovators. Market players are strategically positioning themselves through partnerships with pharmaceutical firms to co-develop diagnostic assays linked to targeted therapies. Frequent product launches in oncology, immunology, and rare disease diagnostics demonstrate strong innovation momentum. Mergers and acquisitions are reshaping the competitive environment, with major players consolidating capabilities in next-generation sequencing (NGS), liquid biopsy, and digital diagnostics. Technological advancements such as AI-driven biomarker analysis, integration of big data, and digital pathology solutions are further intensifying competition. Companies are also expanding their presence into emerging regions such as Asia-Pacific and the Middle East through collaborations and licensing agreements. The landscape reflects a mix of established leaders defending their market share and innovative startups challenging with disruptive technologies, ensuring a dynamic and fast-evolving competitive environment.

Companies Profiled in the Companion Diagnostics Market Report

  • Roche Diagnostics

  • Thermo Fisher Scientific

  • Qiagen N.V.

  • Agilent Technologies

  • Illumina Inc.

  • Abbott Laboratories

  • BioMérieux SA

  • Myriad Genetics

  • Foundation Medicine

  • Guardant Health

  • Siemens Healthineers

  • Sysmex Corporation

Technology Insights for the Companion Diagnostics Market

Companion diagnostics technologies are rapidly evolving, with a strong shift toward next-generation sequencing (NGS), liquid biopsy, and AI-assisted analytics. In 2024, NGS-based diagnostics accounted for nearly 48% of testing platforms due to their ability to deliver high-throughput genomic profiling for oncology and rare diseases. Liquid biopsy is gaining traction as a non-invasive alternative, enabling real-time monitoring of tumor progression and treatment response. Digital pathology platforms integrated with machine learning algorithms are enhancing diagnostic accuracy and reducing turnaround times.

Emerging technologies include multiplex immunohistochemistry (IHC), PCR-based molecular assays, and mass spectrometry applications, each supporting targeted therapy selection. Cloud-based diagnostic solutions are enabling integration across hospital systems, providing scalable platforms for population-level testing. The rise of point-of-care companion diagnostics is expanding accessibility in developing regions, reducing reliance on centralized laboratories. Additionally, the integration of wearable health devices and digital biomarkers into companion diagnostic workflows represents a growing frontier in patient monitoring.

The market is also seeing investments in synthetic biology and CRISPR-based diagnostic technologies, offering higher specificity and faster results. These advancements, combined with robust clinical data integration, are driving the next phase of personalized medicine, making companion diagnostics indispensable to modern healthcare strategies.

Recent Developments in the Global Companion Diagnostics Market

  • March 2024 – Roche launched a new companion diagnostic assay for targeted lung cancer therapy, enhancing precision oncology testing capabilities across clinical laboratories worldwide.

  • January 2024 – Qiagen expanded its next-generation sequencing portfolio with the launch of a liquid biopsy-based companion diagnostic, enabling non-invasive cancer monitoring.

  • September 2023 – Thermo Fisher Scientific introduced an AI-powered genomic testing platform designed to accelerate biomarker discovery and improve diagnostic accuracy in oncology.

  • June 2023 – Guardant Health announced the approval of its blood-based companion diagnostic test for colorectal cancer, improving early detection and treatment selection.

Scope of Companion Diagnostics Market Report

The scope of the Companion Diagnostics Market Report covers a comprehensive evaluation of the industry across type, technology, application, end-user, and geography. Market segmentation includes diverse platforms such as NGS, PCR, IHC, liquid biopsy, and digital diagnostics, reflecting the broad adoption of molecular and genomic testing solutions. Applications extend across oncology, immunology, neurology, and rare diseases, highlighting the growing integration of companion diagnostics into precision medicine.

Geographically, the report provides insights into North America, Europe, Asia-Pacific, South America, and Middle East & Africa, assessing regional adoption patterns, healthcare infrastructure, and government support. End-users include hospitals, diagnostic laboratories, pharmaceutical companies, and research institutions, each with distinct adoption drivers.

The report also addresses technological advancements, regulatory landscapes, and competitive dynamics, ensuring a holistic view for decision-makers. Additionally, it explores emerging segments such as point-of-care testing, AI-assisted platforms, and cloud-based diagnostics, which are poised to reshape industry growth. With its structured analysis, the report equips stakeholders with actionable intelligence on evolving market opportunities, regional strategies, and innovation trends shaping the global companion diagnostics sector.

Companion Diagnostics Market Report Summary

Report Attribute/Metric Report Details

Market Revenue in 2024

 USD 8754.7 Million

Market Revenue in 2032

 USD 24110.6 Million

CAGR (2025 - 2032)

 13.5%

Base Year 

 2024

Forecast Period

 2025 - 2032

Historic Period 

 2020 - 2024

Segments Covered

By Type

  • PCR-Based Assays

  • NGS Panels

  • Immunohistochemistry (IHC) Assays

  • In-Situ Hybridization (ISH) Platforms

  • Mass Spectrometry-Based Proteomic Assays

  • Others

By Application

  • Oncology

  • Infectious Diseases

  • Neurological Disorders

  • Cardiovascular Diseases

  • Autoimmune Diseases

  • Rare Genetic Diseases

  • Others

By End-User

  • Pharmaceutical & Biopharmaceutical Companies

  • Reference Laboratories & Central Diagnostic Laboratories

  • Contract Research Organizations (CROs)

  • Others

Key Report Deliverable

 Revenue Forecast, Growth Trends, Market Dynamics, Segmental Overview, Regional and Country-wise Analysis, Competition Landscape

Region Covered

 North America, Europe, Asia-Pacific, South America, Middle East, Africa

Key Players Analyzed

 Roche Diagnostics, Thermo Fisher Scientific, Qiagen N.V., Agilent Technologies, Illumina Inc., Abbott Laboratories, BioMérieux SA, Myriad Genetics, Foundation Medicine, Guardant Health, Siemens Healthineers, Sysmex Corporation

Customization & Pricing

 Available on Request (10% Customization is Free)

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