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Charles River Laboratories Employees Reviews, Feedback, Testimonials

Preclinical research models and servicesWilmington, USA5,001-10,000 employees
4
5 reviews

About Charles River Laboratories

Charles River Laboratories is a global life sciences company headquartered in Wilmington, Massachusetts, providing preclinical and early-stage contract research services to biopharma and biotechnology clients. The company offers laboratory animal models, safety assessment, toxicology, bioanalytical services and biologics testing that support drug discovery and development. Charles River’s teams include scientists, lab technicians and study directors who collaborate to accelerate timelines and meet regulatory standards. The workplace culture stresses scientific rigor, quality systems and continuous skill development, with clear pathways for technical advancement and leadership in laboratory operations. A distinctive achievement: Charles River is recognized as one of the leading preclinical CROs worldwide, supporting many investigational programs through early-stage testing. For professionals in research, quality assurance or lab management, the organization offers opportunities to work on translational science projects and contribute directly to new therapeutic pipelines.

Detailed Charles River Laboratories employee reviews & experience

Employee Testimonials

Employees I spoke with tended to be candid and helpful. One research associate said, "I love the hands-on science and the people here — you learn something new every week." Another long-time technician mentioned, "The lab teams are tight-knit; you will feel supported on day one." There were also honest comments about bureaucracy and the pace: "If you want research with strict processes, this is for you; if you want a startup vibe, you will notice the difference."

These voices show a mix: pride in the technical work and the impact it has on drug development, paired with occasional frustration about paperwork and approvals. If you search for company culture at Charles River Laboratories or read reviews about working at Charles River Laboratories, you will see this blend of technical passion and operational structure reflected again and again.

Company Culture

Company culture at Charles River Laboratories is science-first. People are motivated by mission-driven work: helping advance pharmaceuticals and improving public health. Teams are generally collaborative within functions, especially in labs and animal care. There is a clear emphasis on compliance, data integrity, and reproducibility, which shapes daily behavior.

Managers encourage accuracy over speed, and that can feel comforting if you value quality. At the same time, some employees feel that the heavy process orientation can slow innovation. Overall, culture rewards technical competence and reliability. If you are investigating company culture at Charles River Laboratories, expect a professional, safety-minded environment where the work directly supports drug discovery and safety studies.

Work-Life Balance

Work-life balance at Charles River Laboratories varies by role and site. Many lab-based roles follow standard daytime shifts and offer predictable schedules, which helps with personal planning. Some positions, such as animal care technicians or clinical services, involve early mornings, weekends, or on-call rotations. In those roles, you may have to make trade-offs.

Employees who work in corporate or support functions reported more flexibility, including moderate remote options and flexible hours. For those in production or lab settings, the work can be time-sensitive, and overtime may be required during busy study periods. If you are weighing work-life balance at Charles River Laboratories, know that the company tries to be accommodating, but operational needs sometimes come first.

Job Security

Job security is generally steady. The company operates in a regulated, specialized sector and provides essential services to pharmaceutical and biotech clients, which creates ongoing demand. There are occasional restructurings tied to acquisitions or changes in client contracts, but long-term roles, particularly those with specialized skills, tend to be secure.

Employees in niche technical roles or with certifications are less likely to experience layoffs. Contractors and temporary staff may face more variability. The company has historically been invested in maintaining operational continuity and supporting critical client services.

Leadership and Management

Leadership places emphasis on compliance, client service, and scientific rigor. Senior leaders communicate business priorities and often tie decisions back to safety and regulatory requirements. Management style can be formal and process-oriented, with structured expectations.

Some site-level managers are praised for hands-on coaching and support, while others are said to focus heavily on metrics and throughput. Career-minded employees will find that aligning with organizational goals and demonstrating consistency are effective ways to gain leadership recognition.

Manager Reviews

Manager reviews are mixed but mostly positive in technical areas. Good managers are described as transparent, mentoring, and approachable. They provide clear expectations and foster team collaboration. Less effective managers receive criticism for being distant or overly focused on short-term metrics.

If you are evaluating managers during interviews, ask specific questions about support, career guidance, and how feedback is handled. Past employees recommend meeting potential managers and asking about their people development track record.

Learning & Development

Training is a clear focus. The company provides role-specific training, compliance courses, and safety certifications. There are structured onboarding programs for lab personnel and ongoing technical workshops. Employees who want cross-functional exposure can find internal training opportunities, though access may vary by location.

Tuition assistance and external conference support are available in many cases, particularly for employees in research roles. Learning pathways are practical and applied, reflecting the hands-on nature of the work.

Opportunities for Promotions

Promotion paths exist and are most visible for technical progression. There are clear junior-to-senior tracks in laboratory sciences, animal care, and quality assurance. Movement into management is possible but often competitive and tied to demonstrated leadership and project ownership.

Employees who proactively seek additional responsibilities and document results tend to advance faster. Corporate roles may offer clearer lateral career moves compared to highly specialized lab tracks.

Salary Ranges

Salary ranges are market-competitive for the life sciences support sector. Entry-level lab technicians will find compensation in the expected range for the region, while experienced scientists, study directors, and specialized technicians can command mid-to-upper range salaries. Corporate and executive roles follow industry benchmarks.

Compensation will vary by geography, certifications, and years of experience. It is advisable to research local salary data and discuss ranges openly during recruitment.

Bonuses & Incentives

Bonuses and incentives are typically tied to performance, role, and level. Sales and business development roles may have commission structures, while corporate roles receive performance bonuses. There are occasional site or company-wide incentive programs linked to milestones or productivity.

Bonus practices will differ by country and legal framework. Employees should clarify bonus eligibility and typical target amounts during the hiring process.

Health and Insurance Benefits

Health and insurance benefits are comprehensive and align with industry standards. Medical, dental, vision, and prescription coverage are commonly offered. Many locations provide retirement plans with matching contributions and employee assistance programs.

Benefits packages are generally considered solid, especially for full-time employees. Specific offerings and costs will depend on regional policies and local plans.

Employee Engagement and Events

Employee engagement is supported through site-level events, recognition programs, and internal communications. Many locations host safety days, training fairs, and occasional social gatherings. Employee resource groups and volunteer initiatives exist to connect staff beyond daily work.

Participation levels vary by site, but employees appreciate efforts to build community and recognize achievements.

Remote Work Support

Remote work support is present in corporate and certain support functions. The company will generally provide standard remote equipment, collaboration tools, and policies for eligible roles. Lab and on-site positions require physical presence and have limited remote options.

Expect a hybrid approach for many office roles, with the company balancing flexibility and collaboration needs.

Average Working Hours

Average working hours are typical for the industry: roughly 40 hours per week for standard roles, with shift patterns for animal care and labs. Peak project periods and client-driven timelines can increase hours temporarily. The organization maintains time-tracking and overtime policies that comply with local regulations.

Attrition Rate & Layoff History

Attrition is moderate and mirrors life sciences industry trends. Turnover tends to be higher in entry-level and shift-based roles, and lower among specialized scientists. The company has had targeted layoffs tied to restructuring or acquisition integration but does not have a record of widespread, sudden cuts.

Overall Company Rating

Overall, this company is a strong option for people who want mission-driven technical work in a regulated environment. It offers stable job security, solid benefits, and clear technical career paths. There will be trade-offs in terms of bureaucracy and variable hours in certain roles. If you value scientific impact, structured processes, and career development in the life sciences, this could be a very good fit.

Detailed Employee Ratings

3.6
Work-Life Balance
3.6
Compensation
4
Company Culture
4.4
Career Growth
4
Job Security

Filter Reviews

5 reviews found

Employee Reviews (5)

Read authentic experiences from current and former employees at Charles River Laboratories

4.0

Research Associate Review

ToxicologyContractFlexible
September 1, 2025

What I liked

Hands-on science, flexible scheduling, friendly colleagues, and strong lab safety culture. Good exposure to different study types which is great for learning.

Areas for improvement

As a contract role there is less job security and some limits on benefits. Salary is okay but could be more competitive for the market.

4.0

Lab Technician Review

Discovery BiologyFull-timeOn-site
August 2, 2025

What I liked

Great hands-on experience, friendly coworkers, and a manager who cares about training. Good place to learn animal handling and core lab techniques.

Areas for improvement

Shift work can be tiring and scheduling isn't always flexible. Pay progression is slow and promotion paths are not clearly defined.

5.0

Senior Scientist Review

PharmacologyFull-timeOn-site
June 15, 2025

What I liked

Supportive team, excellent training programs, clear SOPs and strong emphasis on data quality. Benefits and PTO are good and the work feels meaningful in preclinical drug development.

Areas for improvement

Workloads ramp up around major studies, and being fully on-site can be a long commute some days.

4.0

Bioinformatics Engineer Review

InformaticsFull-timeHybrid
May 20, 2025

What I liked

Hybrid model works well, strong mentorship and modern tooling. Cross-disciplinary projects with genomics and data science are interesting and help me build new skills.

Areas for improvement

Promotion cycles can be slow and there are occasional late meetings due to time zone overlap with US teams.

3.0

Quality Assurance Manager Review

Quality AssuranceFull-timeHybrid
January 10, 2025

What I liked

Strong compliance focus and good internal training for auditors. I learned a lot about global regulatory expectations and running audits.

Areas for improvement

Lots of bureaucracy from middle management, pay wasn't competitive for the role, and company restructuring created uncertainty before I left.