48 leading Non-profit Organizations companies in Maryland (2026 list)

#	Company	Industry	Headquarters	Employees	Founded
1	Goodwill Industries International goodwill.org nonprofit organization providing education, training, and career services to disadvantaged individuals and people with disabilities for empowerment.	Non-profit Organizations	🇺🇸 Rockville	24,004	1902
2	Catholic Relief Services crs.org An international humanitarian agency providing assistance to people in need in over 100 countries, with high efficiency and transparency	Non-profit Organizations	🇺🇸 Baltimore	7,845	1943
3	Jhpiego jhpiego.org International non-profit health organization, affiliated with Johns Hopkins University, focuses on gynecology and obstetrics, providing education and training for better health outcomes.	Non-profit Organizations	🇺🇸 Baltimore	4,139	1973
4	Management Leadership for Tomorrow mlt.org Non-profit organization accelerating diverse talent pipelines through coaching, networking, and equity certifications, connecting top minority talent with leading corporations and business schools	Non-profit Organizations	🇺🇸 Bethesda	2,663	2002
5	American Nurses Association nursingworld.org Advocating for 5 million registered nurses, promoting high standards in nursing practice, advancing healthcare quality, and supporting nurses' health and wellness	Non-profit Organizations	🇺🇸 Silver Spring	2,528	n/a
6	ADRA International adra.org ADRA provides unconditional assistance to families worldwide by offering essentials, livelihood support, health care, education, disaster relief, and empowerment programs	Non-profit Organizations	🇺🇸 Silver Spring	2,018	1983
7	World Relief worldrelief.org A global Christian humanitarian organization empowering local churches to serve the most vulnerable by providing sustainable solutions in 100 countries	Non-profit Organizations	🇺🇸 Towson	1,873	1944
8	Global Communities globalcommunities.org An international non-profit organization collaborates with communities worldwide to implement sustainable changes that enhance the lives of vulnerable populations through partnership and shared responsibility	Non-profit Organizations	🇺🇸 Bethesda	1,211	1952
9	Cystic Fibrosis Foundation cff.org Nonprofit dedicated to finding a cure and improving lives for those with cystic fibrosis through research, care, and advocacy for better health experiences and outcomes.	Non-profit Organizations	🇺🇸 Bethesda	1,152	1955
10	Chimes chimes.org The Chimes Family of Services provides opportunities and support for individuals with disabilities through a variety of innovative and flexible services	Non-profit Organizations	🇺🇸 Baltimore	1,118	1947
11	HIAS hias.org A humanitarian organization providing vital services to refugees and asylum seekers globally, advocating for their rights and creating a welcoming world	Non-profit Organizations	🇺🇸 Silver Spring	974	1881
12	American Physical Society aps.org A non-profit organization advancing physics knowledge through research journals, meetings, education, advocacy, and international activities for physicists worldwide	Non-profit Organizations	🇺🇸 College Park	817	1899
13	Service Coordination Inc servicecoord.org A nonprofit organization in Maryland providing tailored case management services to individuals with disabilities, complex medical needs, mental health disorders, transitioning youth, and more	Non-profit Organizations	🇺🇸 Frederick	806	n/a
14	AABB aabb.org Global not-for-profit association focused on transfusion medicine and cellular therapies, improving health through standards, accreditation, and education for patient and donor care	Non-profit Organizations	🇺🇸 Bethesda	699	1947
15	The American Speech-Language-Hearing Association (ASHA)asha.org This organization is a national association for professionals, scientists, and students involved in audiology, speech-language pathology, and hearing sciences	Non-profit Organizations	🇺🇸 Rockville	693	1925
16	Epilepsy Foundation epilepsy.com Non-profit organization improving lives of people with epilepsy through education, advocacy, research, and support for individuals and families.	Non-profit Organizations	🇺🇸 Bowie	534	1967
17	APHL - Association of Public Health Laboratories aphl.org The company strengthens public health laboratory systems by detecting diseases, environmental contaminants, genetic disorders, and other health threats globally and in the US	Non-profit Organizations	🇺🇸 Bethesda	517	1951
18	Global Refuge globalrefuge.org This organization provides support and advocacy for immigrants and refugees, helping them resettle, reunite families, protect children, and promote justice and compassion	Non-profit Organizations	🇺🇸 Baltimore	497	1939
19	American Institute of Physics ww2.aip.org Advancing and serving the physical sciences worldwide through programs, products, and services while supporting scientists, engineers, educators, and students	Non-profit Organizations	🇺🇸 College Park	439	1931
20	Vietnam Veterans of America vva.org A national veterans organization founded in 1978, dedicated to advocating for veterans, ensuring quality healthcare, and supporting the next generation of war veterans	Non-profit Organizations	🇺🇸 Silver Spring	344	1978
21	The Arc Baltimore thearcbaltimore.org A nonprofit organization providing support and services for individuals with developmental disabilities, including employment training, residential services, family support, and advocacy	Non-profit Organizations	🇺🇸 Baltimore	344	1949
22	Chesapeake Bay Foundation cbf.org This organization fights pollution in the Chesapeake Bay, advocates for strong regulations, partners with stakeholders, restores habitats, and educates the community on environmental issues	Non-profit Organizations	🇺🇸 Annapolis	328	1967
23	Ananda Marga Universal Relief Team (AMURT)amurt.net A global voluntary organization focused on disaster relief, development, and poverty alleviation through human exchange and community empowerment	Non-profit Organizations	🇺🇸 Rockville	267	n/a
24	International Youth Foundation iyfglobal.org This company empowers youth worldwide by providing education, employment opportunities, and engagement to enable them to solve global challenges	Non-profit Organizations	🇺🇸 Baltimore	261	1990
25	Lutheran World Relief lwr.org A leading humanitarian and development organization specializing in market analysis, agriculture, livelihood diversification, climate smart practices, and sustainable water management	Non-profit Organizations	🇺🇸 Baltimore	226	1945
26	The Arc Central Chesapeake Region thearcccr.org The organization provides person-centered supports for individuals with intellectual and developmental disabilities, advocating for equity, access, self-determination, and self-sufficiency	Non-profit Organizations	🇺🇸 Linthicum	219	1961
27	The Coordinating Center coordinatingcenter.org The organization partners with people of all ages and abilities to achieve independence and health through community-based care coordination programs	Non-profit Organizations	🇺🇸 Millersville	202	1983
28	Civic Works, Inc.civicworks.com This company strengthens Baltimore's communities through education, skills development, community service, workforce training, green programs, and various community improvement initiatives	Non-profit Organizations	🇺🇸 Baltimore	185	1993
29	Disabled Veterans National Foundation (DVNF)dvnf.org Supporting disabled and at-risk veterans by providing financial assistance, resources, and advocacy on critical policy issues within the veteran community	Non-profit Organizations	🇺🇸 Lanham	181	2007
30	International NGO Safety & Security Association (INSSA)inssa.org A global non-profit association dedicated to improving safety and security for humanitarian workers through advocacy, collaboration, education, and standardization	Non-profit Organizations	🇺🇸 Silver Spring	180	2010
31	Blind Industries and Services of Maryland bism.org A non-profit organization providing employment, training, and support for blind and visually impaired individuals through specialized programs and diverse manufacturing operations	Non-profit Organizations	🇺🇸 Baltimore	178	1908
32	INFORMS informs.org International association supporting professionals in analytics and operations research through global networking, strategic planning, and professional conduct standards for the scientific community	Non-profit Organizations	🇺🇸 Catonsville	178	1995
33	T. Howard Foundation t-howard.org The company promotes diversity in the media and entertainment industry by providing internships and career opportunities for men and women of color	Non-profit Organizations	🇺🇸 Silver Spring	174	1994
34	American Gastroenterological Association (AGA)gastro.org A global organization representing over 16,000 members in the field of gastroenterology, focusing on practice, research, and education in the area	Non-profit Organizations	🇺🇸 Bethesda	174	1897
35	Autism Society of America autismsociety.org The organization empowers individuals in the Autism community by providing resources to help them live fully and create connections	Non-profit Organizations	🇺🇸 Rockville	173	1965
36	Richcroft Inc richcroft.org Richcroft provides residential and personal supports for individuals with intellectual and developmental disabilities, focusing on creating opportunities and fostering relationships for a fulfilling life	Non-profit Organizations	🇺🇸 Hunt Valley	171	1983
37	Foundation for the National Institutes of Health fnih.org The organization supports scientific research and public health initiatives through public-private partnerships, funding projects with potential high impact and long-term goals	Non-profit Organizations	🇺🇸 North Bethesda	169	1996
38	National NSSLHA nsslha.org National organization for pre-professionals in communication sciences and disorders, supporting over 13,400 members and 300+ chapters at colleges nationwide	Non-profit Organizations	🇺🇸 Rockville	169	1972
39	United Way of Central Maryland uwcm.org This organization in Central Maryland promotes equity, creates opportunities, and improves lives through collaborative partnerships and innovative programs benefiting the community	Non-profit Organizations	🇺🇸 Baltimore	169	n/a
40	One Love Foundation joinonelove.org A nonprofit founded to educate young people on healthy vs unhealthy relationships, aiming to prevent abuse by providing empowering information	Non-profit Organizations	🇺🇸 Lutherville-Timonium 21093	168	2010
41	Association for Financial Professionals financialprofessionals.org A professional society advancing treasury and finance success through credentials, events, and networking opportunities, with a focus on excellence worldwide	Non-profit Organizations	🇺🇸 Rockville	160	1980
42	Direct Mail Processors Inc (DMP)dmpinc.net A full-service direct response processing and fulfillment company that partners with non-profit, government, and commercial clients to strengthen customer relationships	Non-profit Organizations	🇺🇸 Hagerstown	155	1992
43	Moore RMG moorermg.com A leading direct response processing and fulfillment company with facilities in DC-Metro, Topeka, and Tulsa, prioritizing speed, accuracy, efficiency, and security	Non-profit Organizations	🇺🇸 Hagerstown	154	1983
44	Georgetown Hill Early School georgetownhill.com A non-profit organization providing early childhood education programs for preschool and elementary age children, with a focus on creating a positive environment for teachers and families	Non-profit Organizations	🇺🇸 Montgomery Village	153	1980
45	HealthCare Access Maryland healthcareaccessmaryland.org Nonprofit agency in Maryland connecting residents to healthcare coverage, empowering long-term benefits utilization, and providing support for complex health and social needs	Non-profit Organizations	🇺🇸 Baltimore	152	1997
46	CNA/NNOC/NNU nationalnursesunited.org A large union and professional organization of registered nurses in the US, advocating for nurses, patients, and healthcare workers worldwide	Non-profit Organizations	🇺🇸 Silver Spring	151	2009
47	St. Vincent de Paul of Baltimore vincentbaltimore.org A leading provider of community services in Baltimore, offering resources to help people overcome poverty through food, shelter, and critical services	Non-profit Organizations	🇺🇸 Baltimore	148	1856
48	NCIA linktr.ee The company provides intervention, education, care, and alternatives to institutionalization for individuals involved in human services or criminal justice systems	Non-profit Organizations	🇺🇸 Windsor Mill	147	1977

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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.

48 leading Non-profit Organizations companies in Maryland

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