Company Description
Charles River Laboratories International, Inc. (NYSE: CRL) operates in the professional, scientific, and technical services sector with a focus on research and development in biotechnology. According to company disclosures, Charles River provides essential products and services that help pharmaceutical and biotechnology companies, government agencies, and leading academic institutions accelerate their research and drug development efforts. Its stated purpose is to improve and expedite the discovery, early-stage development, and safe manufacture of new therapies for patients who need them.
The company reports that its offerings span the drug development continuum, from basic research support through manufacturing-related testing. Charles River describes a portfolio that includes research models and related services, discovery and safety assessment capabilities, and manufacturing support services. These activities are aimed at enabling clients to move therapeutic candidates more efficiently from concept into and through preclinical development and toward commercialization.
Business segments and services
Based on the company’s own descriptions and segment reporting, Charles River organizes its operations into three primary business areas:
- Research Models and Services (RMS) – This segment includes research model products and related services. The company highlights revenue from large research model products and describes RMS as part of its foundation in basic research, supporting laboratories that require consistent, well-characterized models for preclinical work.
- Discovery and Safety Assessment (DSA) – The DSA segment provides services required to take a drug through early development, including discovery services and regulated safety assessment studies. Charles River notes that demand trends in this segment are an important indicator of client activity, and it tracks metrics such as net book-to-bill to gauge bookings relative to revenue.
- Manufacturing Solutions – Sometimes referred to as the Manufacturing segment, this area includes microbial solutions, biologics testing services, and avian vaccine services, as well as contract development and manufacturing organization (CDMO) activities. The company emphasizes that these offerings support the safe manufacture of therapies, including biologics and advanced modalities.
In public communications, Charles River also describes an integrated cell and gene therapy portfolio that brings together discovery and safety assessment services, biologics testing, and preclinical through commercial-scale manufacturing capabilities. Through its Cell & Gene Therapy Incubator Program, the company provides early-stage biotechnology participants with access to scientific and commercial expertise, regulatory and quality guidance, training, and preferential access to its global network of facilities to support advanced therapies from concept to potential clinical development.
Role in drug discovery and development
Charles River positions itself as a partner that can support clients across multiple stages of the drug development lifecycle. The company states that its employees are focused on providing clients with exactly what they need to improve and expedite discovery, early-stage development, and safe manufacturing. It reports that its portfolio spans basic research, early-stage drug development, and manufacturing solutions, and that this breadth is intended to help clients increase efficiency and speed to market for therapeutic programs.
Within discovery, Charles River highlights capabilities in hit identification and early drug discovery workflows. For example, it has announced a strategic collaboration with X-Chem, Inc. to combine Charles River’s in-house protein production, assay development, and hit identification expertise with X-Chem’s DNA-encoded library (DEL) platform. This arrangement is described as enabling clients to access a library of billions of compounds and a seamless workflow from hit identification to hit-to-lead optimization.
In safety assessment and regulatory-required studies, the company notes that its DSA segment conducts discovery and regulated safety assessment services for biopharmaceutical clients. It has also emphasized the importance of reliable access to non-human primates (NHPs) for certain regulatory-required biomedical, pharmaceutical, and toxicological research. To support this, Charles River signed an agreement to acquire the assets of K.F. (Cambodia) Ltd., a Cambodia-based provider of NHPs, and has an existing controlling interest in Noveprim, an NHP supplier in Mauritius. The company explains that owning and integrating these suppliers is intended to strengthen and secure the NHP supply chain for its DSA operations and allow greater oversight of biosecurity, regulatory compliance, and audit practices.
Manufacturing quality control and biologics testing
In the Manufacturing Solutions segment, Charles River reports that it offers microbial solutions, biologics testing services, and avian vaccine services, as well as CDMO capabilities. The company has also invested in next-generation sequencing (NGS) for manufacturing quality-control testing. It has exercised an option to acquire the remaining equity in PathoQuest SAS, a Paris-based provider of NGS solutions for biopharmaceutical manufacturing quality control, and plans to integrate PathoQuest into its Biologics Testing business.
According to Charles River, PathoQuest’s NGS solutions provide rapid, in vitro GMP and non-GMP testing for viral safety and product characterization. These technologies support the company’s Alternative Methods Advancement Project (AMAP) by using new approach methodologies (NAMs) to reduce animal use in viral safety workflows. The company notes that PathoQuest’s assays, such as iDTECT quality-control assays, can identify adventitious agents in a single analysis and assist with genetic characterization of cell lines and viral vectors. Charles River states that such capabilities help biopharmaceutical companies ensure the safety of biologics, including monoclonal antibodies, cell and gene therapies, vaccines, and recombinant proteins.
Focus on New Approach Methodologies (NAMs) and the 3Rs
Charles River explicitly highlights its commitment to advancing New Approach Methodologies (NAMs), which it describes as non-clinical tools that enhance the predictability of efficacy and safety while aiming to reduce reliance on animal testing. The company references a long-standing focus on the 3Rs (Replacement, Refinement, and Reduction of animal use in research) and notes substantial investments in alternative technologies.
To guide this effort, Charles River has established a global, cross-functional Scientific Advisory Board led by Dr. Namandjé N. Bumpus. The board brings together experts in animal welfare, science, technology, operations, and regulatory affairs to advance NAMs and embed them across therapeutic, preventive, and chemical substance testing. The company cites several NAM-related technologies already deployed in its programs, including:
- Endosafe Trillium – A recombinant bacterial endotoxin test that reduces reliance on horseshoe crab-derived limulus amoebocyte lysate (LAL).
- In vitro skin sensitization assays – Non-animal methods that provide insight into skin reactions following chemical exposure.
- Virtual control groups – Approaches that can reduce the number of animals used in nonclinical safety studies by leveraging historical control data from standardized studies.
- Logica – An integrated, multidisciplinary in silico tool that combines artificial intelligence with traditional bench science to support optimization in discovery and development.
- Next-generation sequencing (NGS) – Animal-free alternatives for pathogen testing and genetic characterization of cell lines and drug substances/products under GMP conditions.
Charles River states that it aims to develop scalable approaches for NAMs regulatory acceptance and implementation, with the goal of supporting safe and effective treatments for patients while minimizing animal use where feasible.
Collaborations and ecosystem engagement
The company regularly highlights collaborations that extend its scientific and operational capabilities. In addition to the X-Chem partnership, Charles River has announced a collaboration with The Francis Crick Institute focused on antibody-drug conjugate (ADC) discovery and development. This agreement is described as integrating antibody discovery, conjugation, in vitro profiling, and preclinical studies into a coordinated workflow managed jointly by Charles River and the Crick. Charles River notes that this collaboration will use its Retrogenix in vitro profiling platform to evaluate off-target interactions and help enhance the safety and therapeutic index of ADC candidates.
Through its Cell & Gene Therapy Incubator Program and related events such as the Cell & Gene Therapy Summit, Charles River also engages with early-stage companies and technology providers. Participants in the incubator program receive mentorship, regulatory and quality consulting, training, and access to the company’s facilities, which Charles River describes as supporting cell and gene therapy programs "from concept to cure." The company presents this ecosystem as a way to help emerging developers advance life-changing therapies and to connect enabling technology providers with bioprocessing and digital tools.
Strategic review and capital allocation
Charles River’s Board of Directors has conducted a strategic review of the business and growth prospects. The company reports that the Board supports a strategy centered on strengthening its scientific portfolio in core markets, divesting underperforming or non-core assets, maximizing financial performance, and maintaining a disciplined approach to capital deployment. As part of this, Charles River has identified areas of future growth aligned with its competencies in bioanalysis, in vitro services including NAMs, and related solutions, as well as opportunities to enhance its geographic presence.
The company has also described initiatives to refine its portfolio by selling certain underperforming or non-core businesses, with the stated goal of focusing on more profitable growth opportunities. In addition, Charles River has implemented restructuring and efficiency programs, including process improvements, procurement synergies, and a global business services model, which it expects to generate significant cost savings on an annualized basis.
On capital allocation, Charles River states that it evaluates the balance between strategic acquisitions, stock repurchases, debt repayment, and other uses of capital. It has disclosed a Board-approved stock repurchase authorization and notes that acquisitions such as K.F. (Cambodia) Ltd. and PathoQuest SAS are intended to support core growth areas and improve operating margins over time.
Market position and index membership
Charles River is listed on the New York Stock Exchange under the symbol CRL. The company has disclosed that it became a member of the S&P 500 index in 2021. It also reports that, under long-term leadership, it has transformed from a niche research models business into a global preclinical contract research organization (CRO) with a high proportion of revenue generated from services. The company states that it has worked on an average of more than 80% of the drugs approved by the U.S. Food and Drug Administration since 2017, illustrating its involvement across a broad range of therapeutic programs.
Charles River emphasizes that its scientific expertise, integrated service portfolio, and focus on both traditional and alternative testing methods position it to support clients in an evolving biopharmaceutical landscape. It presents its strategy as combining regulatory-required testing with NAMs and advanced technologies to drive efficiency and success in clients’ drug development programs.
Corporate governance and leadership evolution
The company has disclosed a leadership transition plan in which its long-serving Chair, President, and Chief Executive Officer intends to retire from the CEO and Chair roles, while remaining on the Board as a non-executive director. The Board has unanimously appointed the current Chief Operating Officer as the next Chief Executive Officer, effective at the 2026 Annual Meeting of Shareholders, and expects the current Lead Independent Director to become Chair of the Board. Charles River describes this as the outcome of a comprehensive, Board-led succession process designed to ensure continuity, stability, and alignment with its strategic direction, including the separation of the Chair and CEO roles.
In addition, the company has created the role of Chief Scientific and Innovation Officer, appointing Dr. Namandjé N. Bumpus to lead scientific strategy, oversee research and development initiatives, and advance innovation to support clients in accelerating drug development. This role also encompasses leadership of the Scientific Advisory Board focused on NAMs and regulatory strategy.
Regulatory and compliance context
Charles River has reported interactions with U.S. regulators related to its sourcing of non-human primates. The company received an inquiry from the U.S. Securities and Exchange Commission’s Division of Enforcement, which requested information and later issued a document subpoena primarily related to NHP sourcing and related disclosures. The company’s Audit Committee retained counsel to conduct an independent investigation into issues raised in that investigation. Charles River has disclosed that, as of November 14, 2025, the SEC’s Division of Enforcement informed the company that it had concluded its investigation and did not intend to recommend an enforcement action, and that the company’s independent investigation also concluded with no material findings.
In its financial reporting, Charles River frequently distinguishes between GAAP and non-GAAP measures, explaining that non-GAAP metrics exclude items such as acquisition-related amortization, restructuring costs, certain legal costs, and gains or losses on strategic investments. The company states that it uses these measures internally to evaluate core operating performance and that it believes they help investors understand underlying trends, while also noting the limitations of non-GAAP measures.