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63 leading Non-profit Organizations companies in Pennsylvania

Tamtam tracks 63 Non-profit Organizations companies headquartered in Pennsylvania. This list ranks all of them by number of employees on LinkedIn, led by Merakey, American College of Physicians and Resources for Human Development. Their median headcount is 278. Half of them were founded in 1972 or later. The most common headquarters are Philadelphia (24), Pittsburgh (8) and Erie (2).

馃嚭馃嚫 Pennsylvania63 companiesUpdated Oct 24, 2026
#CompanyIndustryHeadquarters EmployeesFounded
1
Merakeymerakey.org

A non-profit provider offering integrated developmental, behavioral health, and education services nationwide, focusing on innovative care solutions for individuals and communities

Non-profit Organizations 馃嚭馃嚫 Lafayette Hill 2,901 1969
2
American College of Physiciansacponline.org

Largest organization representing internal medicine physicians, subspecialists, and students focused on adult health, diagnosis, treatment, and compassionate care.

Non-profit Organizations 馃嚭馃嚫 Philadelphia 2,189 1915
3
Resources for Human Developmentrhd.org

A human services organization based in Philadelphia empowering vulnerable populations to achieve independence through innovative programs across 14 states

Non-profit Organizations 馃嚭馃嚫 Philadelphia 1,782 1970
4
Youth Advocate Programs, Inc.yapinc.org

A national nonprofit providing community-based services as an alternative to youth incarceration and child welfare placements, prioritizing equal opportunities and non-discrimination

Non-profit Organizations 馃嚭馃嚫 Harrisburg 1,488 1975
5
SAE Internationalsae.org

Global association uniting engineers, providing knowledge, setting industry standards, promoting lifelong learning, and supporting philanthropic programs for mobility engineering professionals.

Non-profit Organizations 馃嚭馃嚫 Warrendale 1,304 n/a
6
JEVS Human Servicesjevshumanservices.org

This organization provides a wide range of services including skills training, vocational rehabilitation, recovery services, and more to support individuals in need

Non-profit Organizations 馃嚭馃嚫 Philadelphia 1,124 1941
7
The Pew Charitable Trustspewtrusts.org

Use data and rigorous research to address societal challenges, foster collaboration, and advance fact-based solutions for measurable progress.

Non-profit Organizations 馃嚭馃嚫 Philadelphia 1,021 1948
8
Greater Philadelphia YMCAphilaymca.org

The organization promotes youth development, healthy living, and social responsibility through impactful programs in the Greater Philadelphia community

Non-profit Organizations 馃嚭馃嚫 Conshohocken 950 n/a
9
ASTM Internationalastm.org

Creating and setting global standards to improve lives and enhance performance in various industries, offering innovative business services and products

Non-profit Organizations 馃嚭馃嚫 West Conshohocken 789 1898
10
HOPE Internationalhopeinternational.org

A Christian non-profit providing Christ-centered financial services to empower families in underserved communities through savings groups and microfinance institutions worldwide

Non-profit Organizations 馃嚭馃嚫 Lancaster 758 1997
11
Public Health Management Corporationphmc.org

A nonprofit public health institute in the Greater Philadelphia region, providing outreach, education, research, planning, and direct services to improve community health

Non-profit Organizations 馃嚭馃嚫 Philadelphia 748 1972
12
Community Behavioral Healthcbhphilly.org

A nonprofit managing behavioral health services for Medicaid recipients in Philadelphia, focused on improving mental wellness through high-quality, accountable care

Non-profit Organizations 馃嚭馃嚫 Philadelphia 694 1997
13
Philadelphia Corporation for Agingpcacares.org

This nonprofit agency funds and coordinates programs to support older Philadelphians and those with disabilities, promoting health, independence, and productivity

Non-profit Organizations 馃嚭馃嚫 Philadelphia 563 1973
14
American Board of Internal Medicineabim.org

A company specializing in certifying internists in internal medicine and its subspecialties, upholding the highest standards for patient care

Non-profit Organizations 馃嚭馃嚫 Philadelphia 527 1936
15
Esperanzaesperanza.us

Faith-based organization focused on serving the Hispanic community through education, housing, economic development, legal services, job training, and advocacy

Non-profit Organizations 馃嚭馃嚫 Philadelphia 523 1986
16
Service Access & Management, Inc.sam-inc.org

A not-for-profit case management organization providing services to over 25,000 individuals in communities within their service area

Non-profit Organizations 馃嚭馃嚫 Reading 505 1997
17
American Friends Service Committeeafsc.org

Quaker organization promoting peace and justice through faith-based action, nurturing change and respect for human life and social systems.

Non-profit Organizations 馃嚭馃嚫 Philadelphia 491 1917
18
The Bair Foundationbair.org

A non-profit ministry offering quality care and services to children, youth, and families in 9 states, with child-centered and family-focused programs

Non-profit Organizations 馃嚭馃嚫 New Wilmington 456 1967
19
American Association for Cancer Researchaacr.org

A leading professional organization dedicated to advancing cancer research through conferences, publications, funding, and advocacy for the prevention and cure of cancer

Non-profit Organizations 馃嚭馃嚫 Philadelphia 425 1907
20
The Children's Institute of Pittsburghamazingkids.org

The company provides a range of services including educational, autism, health, early intervention, and family support to help children and families thrive

Non-profit Organizations 馃嚭馃嚫 Pittsburgh 397 1902
21
PMHCC, Inc.pmhcc.org

A not-for-profit organization in Philadelphia managing human services programs, including behavioral health, substance abuse, and intellectual disabilities, with a focus on public well-being

Non-profit Organizations 馃嚭馃嚫 Philadelphia 389 1987
22
AMPP: Association for Materials Protection and Performanceampp.org

A global organization focusing on asset protection and materials performance, created through the merger of NACE International and SSPC Headquarters in the US

Non-profit Organizations 馃嚭馃嚫 Houston and Pittsburgh 386 n/a
23
George Junior Republicgjr.org

The organization helps at-risk youth transition into successful adults by instilling citizenship, responsibility, and self-awareness through various programs since 1909

Non-profit Organizations 馃嚭馃嚫 Grove City 371 1909
24
Holcomb Behavioral Health Systems - A Chimes Companyholcombbhs.org

Provider of mental health, substance abuse, and developmental disability services in Pennsylvania, New Jersey, Delaware, and Maryland, promoting individual potential and dignity

Non-profit Organizations 馃嚭馃嚫 Exton 365 1978
25
National Association of Colleges and Employersnaceweb.org

An organization connecting college career services professionals and HR/staffing professionals, providing insights, trends, benchmarks, and legal information for employment

Non-profit Organizations 馃嚭馃嚫 Bethlehem 361 1956
26
Goodwill Keystoneyourgoodwill.org

This nonprofit organization in PA recycles donations into training, paychecks, and opportunities for individuals and families to thrive and flourish

Non-profit Organizations 馃嚭馃嚫 Harrisburg 345 1948
27
SPIN Inc.spininc.org

A leading non-profit providing support for individuals with autism and developmental disabilities, along with high-quality early childhood education in Philadelphia and the Lehigh Valley

Non-profit Organizations 馃嚭馃嚫 Philadelphia 339 1970
28
Tech Impacttechimpact.org

A nonprofit organization providing technology support and training to nonprofits and young adults to help them better serve their communities

Non-profit Organizations 馃嚭馃嚫 Philadelphia 330 2002
29
YMCA of Greater Pittsburghymcapgh.org

A nonprofit organization dedicated to youth development, health, and community support through programs promoting well-being, education, and social responsibility

Non-profit Organizations 馃嚭馃嚫 Pittsburgh 327 1854
30
Adelphoiadelphoi.org

The organization provides care, education, housing, and philanthropic support to at-risk youth and families in need within the community

Non-profit Organizations 馃嚭馃嚫 Latrobe 323 n/a
31
JEVS Care at Homejevsathome.org

A not-for-profit organization providing non-medical home care support services to disabled and aging clients in various counties in Pennsylvania

Non-profit Organizations 馃嚭馃嚫 Philadelphia 316 n/a
32
American Bible Societyamericanbible.org

Nonprofit organization dedicated to making the Bible accessible, affordable, and alive for all, with a mission to transform lives through God's Word

Non-profit Organizations 馃嚭馃嚫 Philadelphia 278 1816
33
Housing Authority of the City of Pittsburghhacp.org

A municipal corporation providing decent, affordable housing for low-income individuals in Pittsburgh through public housing, Section 8 vouchers, and mixed-finance units

Non-profit Organizations 馃嚭馃嚫 Pittsburgh 222 1937
34
Maternity Care Coalitionmaternitycarecoalition.org

A nonprofit organization providing support and programs to improve the health and well-being of pregnant women, parenting families, and children ages 0-3

Non-profit Organizations 馃嚭馃嚫 Philadelphia 209 1980
35
Society of Hospital Medicinehospitalmedicine.org

Promoting exceptional care for hospitalized patients through a medical society of over 15,000 hospitalists specializing in comprehensive medical care

Non-profit Organizations 馃嚭馃嚫 Philadelphia 196 1998
36
World Teamus.worldteam.org

Interdenominational missionary agency with 350+ workers in 28 countries focusing on establishing reproducing churches among unreached people groups worldwide to glorify God

Non-profit Organizations 馃嚭馃嚫 Warrington 184 n/a
37
Greater Pittsburgh Community Food Bankpittsburghfoodbank.org

Non-profit organization in Pittsburgh area addresses food insecurity through community partnerships, programs, and resources, serving millions annually Join us in making a difference!

Non-profit Organizations 馃嚭馃嚫 Duquesne 182 1982
38
FAYETTE RESOURCES, INC.fayetteresources.org

A company providing person-centered services to adults and children with disabilities, promoting independence, choice, growth, acceptance, and respect in communities

Non-profit Organizations 馃嚭馃嚫 Uniontown 180 1991
39
Amizadeamizade.org

A Pittsburgh-based organization offering volunteer programs and service-learning courses in 12 countries, fostering empathy, social action, and community connections

Non-profit Organizations 馃嚭馃嚫 Pittsburgh 180 1994
40
Foundation for Individual Rights and Expressionthefire.org

This company advocates for and defends free speech and thought rights of individuals, with a focus on protecting students and faculty on college campuses

Non-profit Organizations 馃嚭馃嚫 Philadelphia 180 1999
41
DSG | Koyadsgco.com

An executive search and strategic advising firm connecting talented individuals with mission-driven clients in various sectors worldwide Services include search, advising, and career support

Non-profit Organizations 馃嚭馃嚫 Philadelphia 177 2004
42
McGuire Memorialmcguirememorial.org

Provider of comprehensive services for individuals with intellectual and physical disabilities, including those with complex medical conditions and on the autism spectrum

Non-profit Organizations 馃嚭馃嚫 New Brighton 175 1963
43
Universal Charter Schoolsuniversalfamilyofschools.org

The company creates opportunities in disenfranchised communities by addressing systemic barriers to wealth creation through education, culture, and entrepreneurship

Non-profit Organizations 馃嚭馃嚫 Philadelphia 174 n/a
44
YMCA of Greater Erieymcaerie.org

The YMCA empowers communities through youth development, healthy living, and social responsibility, fostering a caring, respectful, and supportive environment for all

Non-profit Organizations 馃嚭馃嚫 Erie 173 1860
45
Felician Sisters of North Americafelician.org

A nonprofit organization led by Felician Sisters providing care and support to vowed women religious across multiple continents

Non-profit Organizations 馃嚭馃嚫 Beaver Falls 173 1855
46
Girl Scouts of Eastern Pennsylvaniagsep.org

Empowering girls to make a difference through the Girl Scout experience with support from volunteers and community partners in Eastern Pennsylvania

Non-profit Organizations 馃嚭馃嚫 Miquon 171 2007
47
Travis Manion Foundationtravismanion.org

Empowering veterans and families of fallen heroes to develop character in future generations through service, community engagement, and post-military support

Non-profit Organizations 馃嚭馃嚫 Doylestown 169 2007
48
MANNA (Metropolitan Area Neighborhood Nutrition Alliance)mannapa.org

This company prepares and delivers nutritious meals to individuals facing life-threatening illnesses, offering support to improve health and quality of life

Non-profit Organizations 馃嚭馃嚫 Philadelphia 166 1990
49
The Chamber of Commerce for Greater Philadelphiachamberphl.com

The organization brings together businesses and civic leaders to promote growth, create opportunities, advocate for regional development, and support members in Greater Philadelphia

Non-profit Organizations 馃嚭馃嚫 Philadelphia 164 1800
50
Garden Spot Villagegardenspotvillage.org

Non-profit retirement community enriching older adults' lives with Christ's love, serving residents, community, and global 50-plus population in innovative ways

Non-profit Organizations 馃嚭馃嚫 New Holland 163 1990
51
Strawberry Fields Inc.sfionline.org

A non-profit agency providing support services to individuals with disabilities, including adults, children, and infants

Non-profit Organizations 馃嚭馃嚫 State College 163 1972
52
MANY

A national network providing resources and training to improve outcomes for at-risk youth, focusing on employment, education, homelessness, mentoring, sex trafficking, and parental engagement

Non-profit Organizations 馃嚭馃嚫 Pittsburgh 159 n/a
53
Mainstay Life Servicesmainstaylifeservices.org

Nonprofit organization providing residential services and supports to individuals with developmental disabilities, emphasizing respect, compassion, and individualized care within communities

Non-profit Organizations 馃嚭馃嚫 Pittsburgh 156 n/a
54
PUMPpump.org

A non-profit organization in Pittsburgh engaging and mobilizing young people to create change and advocate for a dynamic, diverse community

Non-profit Organizations 馃嚭馃嚫 Pittsburgh 156 1995
55
AIST - Association for Iron & Steel Technologyaist.org

An international technical association dedicated to advancing the development, production, and application of iron and steel through professional and student membership

Non-profit Organizations 馃嚭馃嚫 Warrendale 156 2004
56
Achievement Center of LECOM Healthachievementctr.org

A leading provider of therapeutic services for children and young adults, helping them maximize their potential in various areas of development

Non-profit Organizations 馃嚭馃嚫 Erie 152 1923
57
A Step Up Academyastepupacademy.org

A Step Up Academy is a not-for-profit school offering innovative academic and behavioral programming for children with Autism Spectrum Disorder up to 8th grade

Non-profit Organizations 馃嚭馃嚫 Wyncote 152 2013
58
Liberty Lutheranlibertylutheran.org

Non-profit organization supporting older adults and vulnerable individuals with healthcare, housing, wellness services, bereavement support, disaster recovery, and community programs

Non-profit Organizations 馃嚭馃嚫 Ambler 152 2001
59
Heights Philadelphiaheights.org

Heights connects Philadelphia youth to careers and college, providing academic, workforce, and college support to propel economic mobility

Non-profit Organizations 馃嚭馃嚫 Philadelphia 151 n/a
60
JFCS Pittsburghjfcspgh.org

The company provides social services to individuals and families, empowering them with resources for self-sufficiency and stability through life's changes and challenges

Non-profit Organizations 馃嚭馃嚫 Pittsburgh 150 1937
61
CommunityAidcommunityaid.org

A nonprofit organization operating thrift stores in Pennsylvania, creating jobs, supporting local nonprofits, and assisting neighbors in need through donations

Non-profit Organizations 馃嚭馃嚫 York 148 2009
62
PathWays of Southwestern Pennsylvaniayourpathways.org

This company focuses on creating opportunities for career fulfillment through attracting top talent, offering professional development, and supporting employee engagement

Non-profit Organizations 馃嚭馃嚫 Washington 112 1964
63
Central Susquehanna Opportunities, Inc.csocares.org

This nonprofit organization fosters connections and collaborations to create positive, sustainable changes that enhance quality of life for all

Non-profit Organizations 馃嚭馃嚫 Shamokin 68 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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