About Reinventing Drug Discovery
For 35 years, our mission has been to use the power of science to bring new medicines to patients… over and over again.
Regeneron is a leading biotechnology company that invents, develops, and commercializes life-transforming medicines for people with serious diseases. Founded and led for 35 years by physician-scientists, Regeneron's unique ability to repeatedly and consistently translate science into medicine has led to numerous FDA-approved treatments and product candidates in development, almost all of which were homegrown in Regeneron's laboratories. Regeneron's medicines and pipeline are designed to help patients with eye diseases, allergic and inflammatory diseases, cancer, cardiovascular and metabolic diseases, pain, hematologic conditions, infectious diseases, and rare diseases.
Regeneron is accelerating and improving the traditional drug development process through its proprietary VelociSuite® technologies, such as VelocImmune®, which uses unique genetically-humanized mice to produce optimized fully-human antibodies and bispecific antibodies, and through ambitious research initiatives such as the Regeneron Genetics Center®, which is conducting one of the largest genetics sequencing efforts in the world.
Every day, we apply our homegrown technologies and relentless spirit to help people with serious diseases. See what drives us.

2021 Year in Review
People, Performance & Purpose
2021: Regeneron among the 100 Fastest-Growing Companies
from 30+ investigational medicines to 3 million delivered doses of our COVID-19 antibody cocktail, see the significant gains we made last year.
2021 Year in Review 2021 Responsibility ReportRegeneron by the numbers
35
years of scientific leadership
11.5K+
employees worldwide
~1.1K+
employees with an MD, PhD or PharmD degree
3
years as one of Fast Company’s Best Workplaces for Innovators
#1
ranking in Science magazine's global Top Employer survey for six of the past eleven years
4,000+
volunteers for Day for Doing Good 2021
9
FDA-approved medicines
98%
of our waste diverted from landfill, surpassing our 2025 global responsibility goal
~100%
of drug candidates invented and developed in-house
~2M
exomes sequenced to date
242
peer-reviewed publications in 2021
~35
product candidates in clinical development across multiple therapeutic areas

Honors and awards
Civic 50: Most Community-Minded Companies in the Nation, 2022
Dow Jones Sustainability World Index, 2022
Prix Galien USA: Best Biotechnology Product for Inmazeb®, 2022
Science: Top Employers, 2022
Dow Jones Sustainability World Index, 2021
Dow Jones Sustainability North American Index, 2021
Fast Company: Best Workplaces for Innovators, 2021
Fast Company: World Changing Ideas (Pandemic Response), 2021
Forbes: JUST Companies, 2021
Great Place To Work: Fortune 100 Best Companies to Work For, 2021
Great Place to Work Ireland: Best Workplaces, 2021
Great Place to Work Ireland: Best Workplaces for Women, 2021
IDEA Pharma: Pharmaceutical Invention Index, 2021
Fortune: Change the World, 2020
Shingo Institute: The Shingo Prize, 2019

Led by science
We are the only biopharma company founded and led by physician-scientists since the beginning, more than three decades ago. From our first days, science was and remains our central guiding principle. Our leadership includes multiple Nobel Laureates and five members of the National Academy of Sciences, and we are one of the first companies to form a Science and Technology Committee as an integral component of its Board, a practice which has since become industry standard.
Get To Know The TeamFeatured perspectives
The stories and opinions behind our work.

Working Together To Provide Covid-19 Testing Components
By: Dan Van Plew
Executive Vice President and General Manager, Industrial Operations and Product Supply
A look back
Science isn’t easy and new medicines aren’t made overnight. Decades of investment and perseverance have brought us to where we are today.
View Our History


A broad spectrum of collaborations
Learn about our clinical-stage research partnerships and see how we’re changing the landscape of medicine.
Learn More
Industrial Operations and Product Supply
Grounded in excellence and driven to continuously improve, our industry-leading IOPS team is responsible for the production of our many medicines.
Explore Our Operations