Explore end-to-end solutions throughout development — from portfolio optimization and regulatory strategy, to Phase I-IV clinical trials, market access planning, and more.
See solutionsWHAT WE DO
HOW WE DO IT
Utilize our expertise across therapeutic areas, combining innovative trial designs, leading clinical and regulatory expertise, global reach, and a passion for changing patient lives.
See expertiseTherapeutic Expertise
Cross-Therapeutic Expertise
Our experts help you stay at the forefront of the industry - and ahead of change.
See insightsNew Medicines, Novel Insights
Thinking about joining a clinical trial? Learn the drug development process, what it’s like to participate, how to find a trial, and answers to frequently asked questions.
Learn moreINTERESTED IN PARTICIPATING?
HEAR FROM REAL PATIENTS
TRIAL SITES
Want to collaborate with us to offer clinical trials at your site? We would welcome the opportunity to discuss.
Learn moreWe are one of the largest CROs in the world, speeding life-changing medicine to market by engaging patients With Heart™. Learn about who we are, what we do, and what we believe.
About ParexelWhat can we help you find today?
At Parexel, we speed your life-changing medicines to patients
We design solutions With Heart™. That means we bring an unparalleled passion, unrelenting commitment to problem-solving, and an empathetic focus on the patient experience to expertly propel clinical trials forward.
Parexel is among the world’s largest clinical research organizations (CROs), providing the full range of Phase I to IV clinical development services to help lifesaving treatments reach patients faster. Leveraging the breadth of our clinical, regulatory, and therapeutic expertise, our team of more than 24,000 global professionals works in partnership with biopharmaceutical leaders, emerging innovators, and sites to design and deliver clinical trials with patients in mind, increasing access and participation to make clinical research a care option for anyone, anywhere.
Our depth of industry knowledge and strong track record gained over the past 40 years is moving the industry forward and advancing clinical research in healthcare’s most complex areas, while our innovation ecosystem offers quality solutions to make every phase of the clinical trial process more efficient. Our top-notch people, insight, and focus on operational excellence allow us to work every day to treat patients with dignity and continuously learn from their experiences, so every trial makes a difference.
This approach continues to earn us recognition industrywide, with Parexel being the recipient of the 2024 and 2023 Society for Clinical Research Sites (SCRS) Eagle Award for advancing the clinical research profession through strong site partnerships and named “Top CRO to Work With” by investigative sites worldwide in the 2023 WCG CenterWatch Global Site Relationship Benchmark Survey.
It starts with people. They may come from anywhere. But they’re driven by a common goal: Their search for a brighter future.
They inspire us to learn from their lives across language and race, ability, ethnicity, and community.
So we design clinical trials that give them a voice, honor their sacrifice, and treat them as equals.
We are more than 21,000 professionals working with passion and perseverance to open doors. To lead change. And find new ways to work together.
We make participation easier and partnerships more productive to get to results faster and treatments sooner.
So every patient’s step forward brings them one step closer to a cure, to care, to hope.
Delivered with heart.
Within clinical research, inclusion is critical. Inclusive studies move us closer to more accurately reflecting real-world populations — resulting in a far greater understanding of how the treatment will affect the people who need it. Our approach to designing more inclusive, accessible trials is leading the industry forward.
Our family of brands
Your trusted partner in learning. Parexel Academy is committed to building and enhancing capabilities within the clinical research workforce so that, together, we make a positive impact on the lives of patients around the world.
As Parexel Biotech amplifies your clinical development. Whether you're a team of two or a biotech company of more than 100, you'll get the personal, responsive, and committed approach of a small CRO, with all the benefits of a large one, as we help you develop life-changing treatments for patients.
As a trusted strategic advisor to healthcare and life science executives, Health Advances catalyzes your success with insight, innovation, and integrity.
The industry’s leading provider of comprehensive outsourced medical affairs solutions.
Each of us, no matter what we do at Parexel, contributes to the development of a therapy that ultimately will benefit a patient. We take our work personally, we do it with empathy, and we're committed to making a difference.
From the smallest detail to the largest, we take quality seriously. We focus on the details while never losing sight of the big picture to drive the best possible outcome.
In our quest for innovation, we recognize and uphold the importance of all people, from our employees to our clients and the patients we all serve.
We follow our hearts, we do the right thing, and we have the courage to own the outcome.
Awards & Recognition
January 7, 2025 - Parexel is proud to be featured in the Human Rights Campaign’s (HRC) 2024 Corporate Equality Index (CEI) and for receiving an 85 out of 100 – a score five points higher than last year. Parexel has been a top scorer in the HRC Index for five consecutive years for successfully fostering a culture where colleagues can be their best selves. The CEI is the premier survey benchmarking tool on how corporations are integrating inclusive workplace policies, practices and benefits for LGBTQ+ employees. Each year the HRC Foundation raises its benchmark for scoring, which challenges companies to increase their level of commitment to LGBTQ+ inclusion.
December 18, 2024 - Parexel has won five Platinum MarCom Awards for website design including Parexel Corporate Website (Desktop), Parexel Corporate Website (Mobile), Parexel Mobile Website Design, Parexel Website Design, Parexel Website Home Page Design and one Gold for Parexel Website Redesign. The MarCom Awards honor excellence in marketing and communication, recognizing the generosity, creativity and hard work of industry professionals. Established in 2004, MarCom is one of the largest and most-respected creative competitions in the world. Each year MarCom receives 6,500 print and digital entries from countries around the globe.
December 9, 2024 - Parexel was named a winner in the inaugural 2024 Fierce Biotech CRO Awards in the "Innovative Approaches to Patient-Centric Research" category. This recognition underscores Parexel's commitment to improving patient access and experiences in clinical research by incorporating patient-guided approaches. The Fierce CRO Awards honor CROs that have demonstrated outstanding performance, innovation, and leadership in delivering high-quality research and development services. With submissions across eight different categories, an esteemed panel of judges scored each submission based on innovation and impact, measurable outcomes, sustainability and scalability and ethical considerations.
October 23, 2024 - Parexel was recognized with a Silver Award in the 2024 EcoVadis Sustainability Rating Program for the third consecutive year. This rating represents a significant six-point increase from 2023, placing Parexel in the top 15% of all companies rated by EcoVadis. EcoVadis annually measures companies on their environmental, social and ethical performance based on international standards.
Meet our management team
Explore our environmental, social, and governance (ESG) report
