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The 35 largest research institutes in Maryland

Tamtam tracks 35 research institutes headquartered in Maryland. This list ranks all of them by number of employees on LinkedIn, led by The National Institutes of Health, University of Maryland and The Johns Hopkins University. Their median headcount is 1,588. Half of them were founded in 1942 or later. The most common headquarters are Baltimore (10), Bethesda (9) and Frederick (2).

๐Ÿ‡บ๐Ÿ‡ธ Maryland35 companiesUpdated Oct 24, 2026
#CompanyIndustryHeadquarters EmployeesFounded
1
The National Institutes of Healthnih.gov

Largest public funder of biomedical research investing billions annually to improve health, reduce illness, and support medical breakthroughs worldwide.

Biotechnology Research ๐Ÿ‡บ๐Ÿ‡ธ Bethesda 28,537 1887
2
University of Marylandumd.edu

Public research university emphasizing hands-on learning, interdisciplinary collaboration, innovation, entrepreneurship, and global citizenship through diverse academic and research opportunities.

Higher Education ๐Ÿ‡บ๐Ÿ‡ธ College Park 21,670 n/a
3
The Johns Hopkins Universityjhu.edu

Leading research university offering diverse academic programs across multiple campuses, fostering innovation and improving lives through education and discovery.

Higher Education ๐Ÿ‡บ๐Ÿ‡ธ Baltimore 18,221 n/a
4
Johns Hopkins Applied Physics Laboratoryjhuapl.edu

University-affiliated research center providing technical expertise, prototyping, research, development, and analysis for national security and scientific challenges.

Defense and Space Manufacturing ๐Ÿ‡บ๐Ÿ‡ธ Laurel 7,850 1942
5
The Johns Hopkins University School of Medicinehopkinsmedicine.org

Provider of top-ranked medical and graduate programs, clinical fellowships, residencies, basic science research opportunities, and medical art programs with renowned experts

Hospitals and Health Care ๐Ÿ‡บ๐Ÿ‡ธ Baltimore 7,057 1889
6
Towson Universitytowson.edu

An established and rapidly growing public university offering a diverse range of degree programs, resources, and opportunities for student success and preparation for the future

Higher Education ๐Ÿ‡บ๐Ÿ‡ธ Towson 5,861 1866
7
University of Maryland Baltimore Countyumbc.edu

Public research university focused on innovation, interdisciplinary education, undergraduate success, and groundbreaking research with a strong emphasis on science, engineering, and information technology

Higher Education ๐Ÿ‡บ๐Ÿ‡ธ Baltimore 5,495 n/a
8
National Cancer Institute (NCI)cancer.gov

Leading federal agency for cancer research, part of the National Institutes of Health Visit wwwcancergov for more information Privacy policy available

Government Administration ๐Ÿ‡บ๐Ÿ‡ธ Bethesda 5,247 n/a
9
National Institute of Standards and Technology (NIST)nist.gov

An innovative federal agency advancing measurement science, standards, and technology to promote US innovation and industrial competitiveness

Research Services ๐Ÿ‡บ๐Ÿ‡ธ Gaithersburg 4,946 1901
10
NASA Goddard Space Flight Centernasa.gov

A major US laboratory developing and operating unmanned scientific spacecraft for NASA's Earth observation, astronomy, planetary science, and astrophysics missions

Defense and Space Manufacturing ๐Ÿ‡บ๐Ÿ‡ธ Greenbelt 4,049 1959
11
University of Maryland, Baltimore (UMB)umaryland.edu

A leading public research university in Maryland offering professional schools in health, law, and human services since 1807

Higher Education ๐Ÿ‡บ๐Ÿ‡ธ Baltimore 3,994 1807
12
Johns Hopkins Bloomberg School of Public Healthpublichealth.jhu.edu

A leading institution in public health education and research, dedicated to improving global health through knowledge discovery and application

Higher Education ๐Ÿ‡บ๐Ÿ‡ธ Baltimore 3,721 n/a
13
Morgan State Universitylinktr.ee

A public urban research university offering over 125 academic programs, preparing diverse graduates to lead through innovative education and community service

Higher Education ๐Ÿ‡บ๐Ÿ‡ธ Baltimore 3,501 1867
14
Howard Hughes Medical Institute (HHMI)hhmi.org

Funding scientists and innovative research to advance human health, biology understanding, science education, and public engagement nationwide.

Research Services ๐Ÿ‡บ๐Ÿ‡ธ Chevy Chase 2,304 1953
15
University of Maryland School of Medicinemedschool.umaryland.edu

Leading biomedical research institution with top-tier faculty and extensive global reach, dedicated to advancing innovative research in virology, genomics, and global health

Research Services ๐Ÿ‡บ๐Ÿ‡ธ 2,179 1807
16
The Henry M. Jackson Foundation for the Advancement of Military Medicinehjf.org

A nonprofit organization supporting military medical research, providing program management services to accelerate progress and advance Military Medicine

Research Services ๐Ÿ‡บ๐Ÿ‡ธ Bethesda 2,036 1983
17
Uniformed Services Universityusuhs.edu

A federal health sciences university training healthcare professionals to support the Military Health System Disclosures: Follows, likes, reposts do not equal endorsement

Higher Education ๐Ÿ‡บ๐Ÿ‡ธ Bethesda 1,893 1972
18
University of Maryland Eastern Shoreumes.edu

A historically black university offering accredited degree programs in various fields, research opportunities, and graduate-level programs focusing on teaching and stewardship

Higher Education ๐Ÿ‡บ๐Ÿ‡ธ Princess Anne 1,588 1886
19
NIH Innovatesnih.gov

A federal agency focused on researching mental disorders, part of NIH Conducts basic and clinical research to prevent, treat, and cure mental illnesses

Research Services ๐Ÿ‡บ๐Ÿ‡ธ Bethesda 1,542 1949
20
National Institute of Allergy and Infectious Diseases (NIAID)niaid.nih.gov

Conducts and supports research on infectious, immunologic, and allergic diseases to develop therapies, vaccines, and technologies for improved global health

Government Administration ๐Ÿ‡บ๐Ÿ‡ธ Rockville 1,330 n/a
21
U.S. Army DEVCOM Army Research Laboratoryarl.devcom.army.mil

Official page Content shared does not imply endorsement Stay updated on company news and announcements here

Armed Forces ๐Ÿ‡บ๐Ÿ‡ธ Adelphi 1,134 1992
22
Coppin State Universitycoppin.edu

A Historically Black Institution in an urban setting, providing education opportunities, promoting lifelong learning, leadership, diversity, and economic development

Higher Education ๐Ÿ‡บ๐Ÿ‡ธ Baltimore 1,061 n/a
23
University of Maryland - Robert H. Smith School of Businessrhsmith.umd.edu

A globally renowned institution offering a wide range of management education programs, including MBA, MS, MFin, and executive education, and outreach services to corporations

Higher Education ๐Ÿ‡บ๐Ÿ‡ธ College Park 998 1921
24
Johns Hopkins Whiting School of Engineeringengineering.jhu.edu

The company's faculty and students work on cutting-edge research in various fields including wind engineering, computational medicine, and surgical robotics

Higher Education ๐Ÿ‡บ๐Ÿ‡ธ Baltimore 992 n/a
25
USAMRIID โ€” U.S. Army Medical Research Institute of Infectious Diseaseshealth.mil

Leading research institute developing medical solutions to protect military and civilian populations from biological threats through vaccines, drugs, diagnostics, and collaborations with government agencies and industry partners

Research Services ๐Ÿ‡บ๐Ÿ‡ธ Frederick 968 1969
26
NOAA Fisheriesfisheries.noaa.gov

Utilizing science-based approaches, the organization focuses on conservation and management of marine resources to promote sustainable living and healthy ecosystems

Government Administration ๐Ÿ‡บ๐Ÿ‡ธ Silver Spring 861 n/a
27
Space Telescope Science Institutestsci.edu

A leading space institute in Maryland, operating advanced space telescopes, curating data archives, conducting scientific research, and promoting diversity and inclusivity

Research Services ๐Ÿ‡บ๐Ÿ‡ธ Baltimore 763 1982
28
Walter Reed Army Institute of Researchwrair.health.mil

The company conducts research to develop vaccines, drugs, and solutions to protect military personnel from infectious diseases and enhance their resilience and readiness

Research Services ๐Ÿ‡บ๐Ÿ‡ธ Silver Spring 678 1893
29
National Institutes of Health (NIH): Intramural Research Program (IRP)irp.nih.gov

Leading biomedical research institution within the National Institutes of Health, conducting innovative basic, translational, and clinical research to advance medical discoveries and treatments

Research Services ๐Ÿ‡บ๐Ÿ‡ธ Bethesda 670 n/a
30
Frederick National Laboratory for Cancer Researchfrederick.cancer.gov

The company is dedicated to advancing biomedical sciences to improve human health, particularly focusing on cancer, AIDS, and emerging infectious diseases

Biotechnology Research ๐Ÿ‡บ๐Ÿ‡ธ Frederick 659 1972
31
John Hopkins Universityjhu.edu

A pioneering institution dedicated to teaching, research, and patient care, leading the way in innovation and securing top federal research funds

Education Administration Programs ๐Ÿ‡บ๐Ÿ‡ธ Baltimore 658 1876
32
National Heart, Lung, and Blood Institutenhlbi.nih.gov

A global leader in research, training, and education to prevent and treat heart, lung, and blood diseases, promoting longer, fulfilling lives

Government Administration ๐Ÿ‡บ๐Ÿ‡ธ Bethesda 631 1948
33
HJF Medical Research Internationalhjfmri.org

A nonprofit supporting international medical research and HIV prevention programs, focusing on vaccine development, clinical research, infectious disease surveillance, and global health initiatives

Research Services ๐Ÿ‡บ๐Ÿ‡ธ Bethesda 630 2001
34
National Center for Biotechnology Information (NCBI)ncbi.nlm.nih.gov

International resource providing access to public biological databases and software tools for data analysis, performing computational biology research, archiving, and advancing understanding of health and disease.

Biotechnology Research ๐Ÿ‡บ๐Ÿ‡ธ Bethesda 388 n/a
35
University of Maryland โ€“ College of Computer, Mathematical, and Natural Sciencescmns.umd.edu

Educational institution offering undergraduate and graduate programs in computer, mathematical, and natural sciences, with a focus on scientific research and discovery

Higher Education ๐Ÿ‡บ๐Ÿ‡ธ College Park 188 n/a

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How this list is built

Every company on this list has a Tamtam company profile. The industry is the one the company gives on LinkedIn; categories such as SaaS or fintech are classified by Tamtam's AI from the company's website and LinkedIn page; and the headquarters city must match the company's own address. Companies are ranked by the number of employees on LinkedIn, and the list is refreshed every night. Classifications can be wrong, so treat the list as a starting point rather than an official ranking. Last updated Oct 24, 2026.

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