Published: July 2024
Over the years, companion diagnostics have become increasingly important as they serve multiple functions, such as identifying individuals most likely to profit from a specific therapeutic product, detecting those at elevated risk for severe side effects caused by treatment and tracking treatment responses to optimize safety and effectiveness. We analyzed over 155 CDx development companies that are engaged in offering end-to-end CDx development services. In this article, discover top 5 CDx development companies and their capabilities in supporting companion diagnostics development.
A companion diagnostic is a type of in-vitro diagnostic (IVD) device / test that is capable of providing crucial information for the safe and efficient use of a compatible drug or biological product. The development of such tests is a long process, starting from the identification of a suitable biomarker (specific to a particular disease indication) to validation of an accurate means to investigate / quantify its presence in biological samples. The aforementioned process involves the participation of multiple stakeholders, including drug developers, in vitro diagnostics developers, regulatory authorities, testing laboratories, payers, physicians and end-users / consumers / patients. Given the complexities involved in the development of such diagnostic tests, drug developers prefer outsourcing this process to contract service providers having the necessary expertise. Presently, numerous companies claim to offer a variety of services for diagnostic development, including biomarker identification and discovery, biomarker selection and validation, assay development, analytical validation, clinical validation, commercialization, manufacturing, services related to companion diagnostic kits, reagent development and regulatory assistance.
Roots Analysis has conducted an exhaustive study on Companion Diagnostics (CDx) Development Market featuring the current market landscape and future opportunity for the companies engaged in offering end-to-end services related to CDx development, over a span of 11 years.
Below, we have listed (in alphabetical order), the top 5 CDx Development Companies:

Interested in exploring all 155+ CDx Development Companies and their recent initiatives?
Let us deep dive to understand the activity of the top 5 CDx development companies (companies having service portfolio strength score above 21, 20 and 14 on Roots Analysis proprietary matrix and headquartered in North America, Europe and Asia-Pacific, respectively) in the companion diagnostics (CDx) development market. It is essential to note that the selection of top players can differ substantially according to the defined criteria.
1. BGI Genomics
BGI Genomics, is an integral part of BGI Group. It is primarily a genome sequencing service provider established to support the Human Genome Project. It offers integrated genomic sequencing and proteomics services to academic institutions, pharmaceutical companies, healthcare providers and other organizations, across 100 countries. Using its proprietary DNA Nanoball based sequencing (DNBseq) technology, the company is actively serving projects for various applications, such as clinical research in human health, genetic testing and screening, drug discovery and development, and personalized medicine. To date, it claims to have completed over 150,000 human whole genome sequencing projects.
| Key Parameters | Description |
| Company Logo | ![]() |
| Year of Establisment | 1999 |
| Number of Employees | 5,001-10,000 |
| Headquarters | Shenzhen, China |
BGI Genomics has been actively expanding its reach and capabilities in companion diagnostic development services. The company has collaborated with Gencove to co-market cutting-edge NGS-based sequencing technology alongside advanced analysis platforms, showcasing a commitment to innovation and precision in healthcare solutions. With a focus on infectious disease diagnostic solutions and a growing portfolio, BGI is at the forefront of developing advanced diagnostic tools for public health.
Further details on recent initiatives taken by BGI Genomics and other CDx development companies have been provided in detail in the report.
2. Eurofins
Eurofins company caters to the need of a wide variety of industries, including food, environment, pharmaceutical, cosmetic product testing, discovery pharmacology, clinical studies, as well as biologics contract manufacturing. The company offers services for the development of companion and complementary diagnostics, through its Clinical Diagnostics Services portfolio. With over 400,000 m2 dedicated analytical laboratories, it offers services ranging from discovery to commercialization of companion diagnostics to its clients, including the top ten global pharmaceutical companies. In addition to its projects associated with oncological indications, it is involved in handling diagnostics projects involving innovative therapies for rare diseases.
| Particulars | Specifications |
| Company Logo | ![]() |
| Year of Establisment | 1987 |
| Number of Employees | 10,000+ |
| Headquarters | Luxembourg City, Luxembourg |
In 2022, the company enhanced its clinical and BioPharma services in Japan through the acquisition of Repertoire Genesis, which provides immune repertoire analysis technology. This strategic move allows Eurofins to strengthen its capabilities in immune-related translational research, biomarker development, diagnostics and pharmaceutical advancement from discovery to clinical trials.
Further details on recent initiatives taken by Eurofins and other CDx development companies have been provided in detail in the report.
3. Labcorp
Labcorp is a global life science company which provides diagnostic testing, drug development and technology-enabled solutions through its Labcorp Diagnostics (Dx) and Labcorp Drug Development (DD) segments. Its CRO business, through which it offers companion diagnostics services is Labcorp Drug Development; the segment was formed after Labcorp acquired Covance. The company has expertise in the development of in vitro diagnostic tests (IVD) and laboratory developed tests (LDT), in harmony with the sponsor company’s drug development programs. The firm claims to have supported 19 of the 25 FDA approved companion diagnostic devices, including those targeting HER-2, KRAS, EGFR, BRAF and ALK. Furthermore, the company has also supported the development of the first two FDA-approved complementary diagnostics.
| Particulars | Specifications |
| Company Logo | ![]() |
| Year of Establisment | 1978 |
| Number of Employees | 10,000+ |
| Headquarters | North Carolina, US |
In November 2023, Labcorp acquired Legacy Health’s assets of outreach laboratory business and thereby strengthening its diagnostic capabilities and comprehensive laboratory services in Oregon and Southwest Washington.
Further details on recent initiatives taken by Labcorp and other CDx development companies have been provided in detail in the report.
4. Q2 Solutions
Q2 Solutions is a global laboratory services provider which offers a vast array of testing capabilities across multidisciplinary areas, such as those pertaining to biomarkers, vaccines, companion diagnostics, COVID-19 focused clinical trials, bioanalysis, and clinical genomics assays. The company claims to have supported over 150 companion diagnostics clinical trials, across the globe. The company drives these clinical development studies through its global network of central laboratories with several principal investigators and study coordinators that evaluate the developed assays for Installation Qualification (IQ), Operational Qualification (OQ), and Performance Qualification.
| Particulars | Specifications |
| Company Logo | ![]() |
| Year of Establisment | 2015 |
| Headquarters | North Carolina, US |
| Number of Employees | 1,001-5,000 |
The company has participated / planning to participate in various global events, including the 7th Annual Biomarker and Companion Diagnostics Conference, DIA Europe, ASCO Annual Meeting and CB & CDx Europe.
Further details on recent initiatives taken by BGI Genomics and other CDx development companies have been provided in detail in the report.
5. Quest Diagnostics
Quest Diagnostics is a leading provider of diagnostic information services, including routine biological tests to specialized molecular, gene-based tests and anatomic pathology tests. The company operates through four esoteric laboratories, 40 outpatient AP laboratories, and 160 smaller, rapid-response laboratories. In addition to providing diagnostics products and services, the company offers drug development solutions to various pharmaceutical companies and CROs, as well. The company’s portfolio comprises of precision medicine, diagnostics development, data analytics, and clinical trial services. Further, its ability to develop companion diagnostics tests for the clients, is facilitated by over 60 billion clinical data points, gathered for more than 15 years of its laboratory experience.
| Particulars | Specifications |
| Company Logo | ![]() |
| Year of Establisment | 1967 |
| Headquarters | New Jersey, US |
| Number of Employees | 10,000+ |
In January 2024, the company acquired Steward Health Care System’s Outreach Laboratory Services business to expand the access to Quest’s Diagnostics’ services across Pennsylvania and Ohio.
Further details on recent initiatives taken by Quest Diagnostics and other CDx development companies have been provided in detail in the report.
The above presentation features top 5 CDx development companies selected from a pool of over 155 players that we have compiled. If you're interested, you can download the Sample Report on this topic by Roots Analysis. For personalized assistance in identifying the most relevant solutions based on your specific criteria, please don't hesitate to reach out to us at sales@rootsanalysis.com.