| # | Company | Employees |
|---|---|---|
| 1 |
Social Security Administrationssa.gov
A government agency providing financial protection and support through retirement, disability, and survivors benefits to over 64 million individuals and families nationwide |
47,537 |
| 2 |
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. |
28,537 |
| 3 |
University of Marylandumd.edu
Public research university emphasizing hands-on learning, interdisciplinary collaboration, innovation, entrepreneurship, and global citizenship through diverse academic and research opportunities. |
21,670 |
| 4 | 17,527 | |
| 5 |
Montgomery County Public Schoolsmontgomeryschoolsmd.org
A large school district in Maryland serving over 160,000 students, offering competitive salaries, benefits, and a commitment to diversity Hiring for excellence |
16,138 |
| 6 |
Baltimore County Public Schoolsbcps.org
A large school system serving over 113,000 students, dedicated to fostering lifelong learners through a focus on literacy |
11,202 |
| 7 |
Baltimore City Public Schoolsbaltimorecityschools.org
A public school system in Baltimore, serving nearly 75,000 students through 164 schools and programs with a focus on literacy and student success |
8,279 |
| 8 |
Anne Arundel County Public Schoolsaacps.org
A progressive school system in Anne Arundel County offering a challenging and rewarding educational experience with a focus on success for every student |
7,166 |
| 9 |
Indian Health Serviceihs.gov
A US government agency providing comprehensive healthcare services to American Indian and Alaska Native communities through various career opportunities and programs |
6,468 |
| 10 |
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 |
5,861 |
| 11 |
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 |
5,495 |
| 12 |
Howard County Public School Systemmegaplusredirection.tedata.net
Suburban community in Howard County, Maryland with over 285,000 residents Features a blend of old and new, urban and rural areas |
5,413 |
| 13 |
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 |
4,946 |
| 14 |
Frederick County Public Schoolsfcps.org
The company is a school district in Frederick, Maryland known for its top-ranked education system, high student achievement, and low dropout rate |
4,686 |
| 15 |
National Security Agencynsa.gov
Provides foreign signals intelligence to policymakers and military forces while securing national security systems and weaponry through advanced cybersecurity and computer operations. |
4,637 |
| 16 |
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 |
4,049 |
| 17 |
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 |
3,994 |
| 18 |
Montgomery Collegemontgomerycollege.edu
A public, open admission institution dedicated to student success and offering a wide range of academic programs with a focus on equity, excellence, and community impact |
3,718 |
| 19 |
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 |
3,501 |
| 20 |
City of Baltimorebaltimorecity.gov
The company is based in Baltimore, Maryland, and focuses on historical preservation, with a focus on National Register historic districts and public monuments |
3,376 |
| 21 |
Harford County Public Schoolshcps.org
A K-12 public education school system serving 40,000 students with 53 schools and 7,000 employees, including elementary, middle, high, and special needs schools |
3,075 |
| 22 |
Baltimore Countybaltimorecountymd.gov
Supports businesses and individuals in Baltimore County with resources and opportunities to thrive, emphasizing a diverse community and vibrant environment for success |
3,043 |
| 23 |
Carroll County Public Schoolscarrollk12.org
A top-performing school system in Maryland with innovative education programs, high student achievement, and strong community involvement, preparing students for post-graduation paths |
2,838 |
| 24 |
Community College of Baltimore Countyccbcmd.edu
Offering high-quality, accessible, and affordable education with a wide range of degree programs, certifications, and transfer opportunities to help students reach their career goals |
2,494 |
| 25 |
Anne Arundel Community Collegeaacc.edu
An educational institution offering diverse credit and noncredit programs, preparing students for careers or further education, and providing lifelong learning opportunities |
2,257 |
| 26 |
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 |
2,179 |
| 27 |
Salisbury Universitysalisbury.edu
A Maryland university in the University System of Maryland known for excellence in academics, research, athletics, and community engagement on a scenic campus |
2,138 |
| 28 |
Prince George's Community Collegepgcc.edu
Leading regional center offering diverse academic and training programs, awarding transferable associate degrees, and accredited for specialized programs by the Middle States Commission on Higher Education |
2,063 |
| 29 |
Walter Reed National Military Medical Centerwalterreed.tricare.mil
Largest joint military medical center providing specialized healthcare, education, research, and operational readiness for wounded and ill military beneficiaries. |
1,920 |
| 30 |
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 |
1,893 |
| 31 |
University of Baltimoreubalt.edu
A public university in Maryland offering career-focused education in business, public affairs, arts and sciences, and law with flexible scheduling options |
1,837 |
| 32 |
Bowie State Universitybowiestate.edu
A historically Black university in Maryland offering undergraduate and graduate programs in a serene campus setting near Washington, DC and Baltimore |
1,817 |
| 33 |
Howard Community Collegehowardcc.edu
Public community college in Howard County, Maryland, offering associate degrees, certificates, workforce training, and continuing education classes to 30,000 students annually |
1,785 |
| 34 |
Commissioned Corps of the U.S. Public Health Serviceusphs.gov
A team of over 6,500 skilled public health professionals dedicated to protecting, promoting, and advancing the health and safety of the Nation |
1,694 |
| 35 |
Washington County Public Schoolswcpsmd.com
A school district in Western Maryland with over 22,000 students and 46 facilities promoting curiosity, creativity, and achievement for its community |
1,602 |
| 36 |
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 |
1,588 |
| 37 |
CHARLES COUNTY PUBLIC SCHOOLSteachcharlescounty.com
A rapidly growing public school system in Maryland with 27,000 students, 37 schools, and a range of educational programs from Pre-K to High School |
1,475 |
| 38 |
WSSC Waterwsscwater.com
A leading water and wastewater utility established in 1918, serving 19 million residents with a vast network of pipelines meeting federal standards |
1,448 |
| 39 |
Frostburg State Universityfrostburg.edu
A university promoting civic responsibility, sustainability, and wellness, offering diverse academic programs and real-world experiences to prepare future leaders |
1,294 |
| 40 |
Maryland State Policemdsp.maryland.gov
A law enforcement agency in Maryland committed to serving and protecting the citizens through integrity, fairness, and quality law enforcement services |
1,221 |
| 41 |
Wicomico County Board of Educationwcboe.org
A public school system in Wicomico County providing education to students to reach their full potential and become responsible citizens |
1,170 |
| 42 |
Substance Abuse and Mental Health Services Administration (SAMHSA)samhsa.gov
A leading agency in the US Department of Health and Human Services focused on advancing behavioral health, reducing substance abuse, and supporting mental health nationwide |
1,103 |
| 43 |
CALVERT COUNTY PUBLIC SCHOOLScalvertnet.k12.md.us
A public school system in Calvert County, Maryland, educating over 16,000 students in 24 schools with a focus on excellence and collaboration |
1,102 |
| 44 |
St. Mary's College of Marylandsmcm.edu
A Maryland state honors college offering a top-ranked public liberal arts education to over 1,800 students in a scenic Southern Maryland location |
1,088 |
| 45 |
Coppin State Universitycoppin.edu
A Historically Black Institution in an urban setting, providing education opportunities, promoting lifelong learning, leadership, diversity, and economic development |
1,061 |
| 46 |
Frederick Community Collegefrederick.edu
A community college in Frederick, Maryland offering affordable tuition, diverse courses, degree programs, workforce training, and continuing education options for students |
1,043 |
| 47 |
Maryland Department of Juvenile Servicesdjs.maryland.gov
An executive agency in Maryland manages, supervises, and treats youth in the juvenile justice system, focusing on individualized care and community partnerships for improved outcomes |
1,005 |
| 48 |
College of Southern Marylandcsmd.edu
Public regional community college providing accessible, affordable education, workforce training, and lifelong learning opportunities across Southern Maryland counties. |
989 |
| 49 |
Harford Community Collegeharford.edu
A dynamic institution in Maryland offering 150+ programs, including degrees, workforce training, and personal interest courses, with dedicated faculty support |
973 |
| 50 |
Hagerstown Community Collegehagerstowncc.edu
A pioneer in community college education since 1946, offering over 100 career training and university transfer programs in various fields |
912 |
| 51 |
Office of the Public Defender Marylandstate.md.us
The company provides high-quality legal representation to indigent defendants in Maryland, ensuring their rights are upheld under various legal frameworks |
907 |
| 52 |
Baltimore City Community Collegebccc.edu
Urban institution offering diverse degree and certificate programs with affordable tuition, workforce training, and credits transferable to four-year colleges Proudly serving students from various nations |
851 |
| 53 |
Westowne Elementary Schoolwestownees.bcps.org
Westowne Elementary School is a primary/secondary education company located in Catonsville, Maryland, providing educational services to young students |
837 |
| 54 |
Caroline County Public Schoolscarolineschools.org
A progressive school system in Maryland's Eastern Shore, providing quality education to over 5600 students through ten schools from K-12 and career programs |
812 |
| 55 |
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 |
678 |
| 56 |
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 |
670 |
| 57 |
Carroll Community Collegecarrollcc.edu
Offers affordable credit and non-credit programs with small classes, accessible faculty, support services, and student activities for diverse learners. |
598 |
| 58 |
Dorchester County Public Schoolsdcps.schoolspring.com
The company's mission is to provide leadership for excellence in teaching and learning for all students, preparing them for college and careers |
584 |
| 59 |
U.S. Army Civilian Human Resources Agencyarmy.mil
Provider of comprehensive human resources services for civilian workforce supporting national defense, delivering innovative HR solutions through trusted advisors and service delivery |
555 |
| 60 |
Queen Anne's County Public Schoolsqacps.org
The company provides innovative educational practices, quality instruction, and career readiness programs in Queen Anne's County, Maryland |
552 |
| 61 |
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. |
388 |
| 62 |
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 |
188 |
| 63 |
Program Support Centerhhs.gov
A shared services provider partnering with US Department of Health and Human Services agencies to offer cost-effective solutions for administrative challenges and foster government efficiency |
45 |
| 64 |
UMBC Event Centerchesapeakeemployersinsurancearena.com
A multipurpose event center located on UMBC's campus in Baltimore, hosting basketball, volleyball games, concerts, graduations, and special events in a 5,000-seat arena |
7 |
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More company lists in Maryland
- The largest companies in Maryland 1,527
- IT Services and IT Consulting companies in Maryland 154
- Hospitals and Health Care companies in Maryland 113
- Education providers in Maryland 93
- IT services companies in Maryland 90
- Critical infrastructure operators in Maryland 67
- Healthcare providers in Maryland 66
- Construction companies in Maryland 63
- Retail chains in Maryland 62
- Government Administration companies in Maryland 62
- Financial services firms in Maryland 57
- Higher Education companies in Maryland 54
- Financial Services companies in Maryland 53
- SaaS companies in Maryland 50
- Non-profit Organizations companies in Maryland 48
- Aerospace and defence companies in Maryland 46
- Consulting firms in Maryland 44
- Software Development companies in Maryland 41
- Real Estate companies in Maryland 40
- Research Services companies in Maryland 38
- Hospitality companies in Maryland 37
- Manufacturers in Maryland 37
- Research institutes in Maryland 35
- Business Consulting and Services companies in Maryland 31
The same list elsewhere in United States
- Public sector organisations in the United States 2,527
- Public sector organisations in California 337
- Public sector organisations in Texas 233
- Public sector organisations in New York State 118
- Public sector organisations in North Carolina 88
- Public sector organisations in Florida 85
- Public sector organisations in Virginia 83
- Public sector organisations in Washington State 82
- Public sector organisations in Illinois 76
- Public sector organisations in Alabama 75
- Public sector organisations in Michigan 74
- Public sector organisations in Georgia 70
- Public sector organisations in Ohio 70
- Public sector organisations in Pennsylvania 66
- Public sector organisations in Massachusetts 56
- Public sector organisations in Colorado 53
- Public sector organisations in Arizona 51
- Public sector organisations in Missouri 51
- Public sector organisations in Minnesota 50
- Public sector organisations in New Jersey 48
- Public sector organisations in Wisconsin 48
- Public sector organisations in South Carolina 47
- Public sector organisations in Indiana 46
- Public sector organisations in Washington 51