The 57 largest Non-profit Organizations companies in Indiana (2026 list)

#	Company	Industry	Headquarters	Employees	Founded
1	Alpha Chi Omega Fraternity, Inc.alphachiomega.org An organization for women promoting leadership, sisterhood, and philanthropy through various entities dedicated to empowering strong, impactful women	Non-profit Organizations	🇺🇸 Indianapolis	3,504	n/a
2	Alpha Kappa Psi akpsi.org The company offers educational, networking, and professional development opportunities for college students and graduates interested in business leadership	Non-profit Organizations	🇺🇸 Noblesville	3,087	1904
3	The American Legion legion.org Patriotic veterans service organization providing community service and mutual support for 2 million members worldwide through 13,000 Legion posts	Non-profit Organizations	🇺🇸 Indianapolis	2,483	1919
4	Church World Service cwsglobal.org A faith-based organization working globally to provide just and sustainable responses to hunger, poverty, displacement, and disaster for communities	Non-profit Organizations	🇺🇸 Elkhart	2,221	1946
5	Sigma Kappa Sorority sigmakappa.org A national women's organization founded in 1874, focusing on empowering women through social, intellectual, and spiritual development to positively impact communities	Non-profit Organizations	🇺🇸 Carmel	1,749	1874
6	Alpha Xi Delta alphaxidelta.org Alpha Xi Delta is a national sorority dedicated to the personal growth of women through leadership, knowledge, service, and Sisterhood	Non-profit Organizations	🇺🇸 Indianapolis	1,551	1893
7	Alpha Gamma Delta alphagammadelta.org An international organization focused on personal development, service, and sisterhood, offering opportunities for growth, community impact, and employee support	Non-profit Organizations	🇺🇸 Indianapolis	1,363	1904
8	Sigma Theta Tau International Honor Society of Nursing sigmanursing.org A non-profit organization founded by nurses in 1922 to develop leaders in nursing and improve global healthcare through empowerment and connection	Non-profit Organizations	🇺🇸 Indianapolis	1,280	1922
9	Sigma Delta Tau sigmadeltatau.org A national sorority focused on empowering women to reach their fullest potential, build lasting relationships, promote civic responsibility, and foster personal growth	Non-profit Organizations	🇺🇸 Carmel	1,084	1917
10	Theta Chi Fraternity thetachi.org Theta Chi is a long-standing college fraternity focused on friendship, leadership, and preparing members for successful lives after graduation Visit their website for more information	Non-profit Organizations	🇺🇸 Carmel	1,042	1856
11	Kiwanis International kiwanis.org global network empowering members to support children through local service projects, fundraising, and community-driven initiatives worldwide.	Non-profit Organizations	🇺🇸 Indianapolis	923	1915
12	Delta Tau Delta International Fraternity delts.org Established in 1858, a values-based organization with core values of Truth, Courage, Faith, and Power, boasting over 130 active chapters and 10,000 students	Non-profit Organizations	🇺🇸 Fishers	863	n/a
13	Alpha Epsilon Pi aepi.org An international Jewish fraternity with over 150 chapters fostering leadership and support for Jewish organizations, philanthropies, and causes	Non-profit Organizations	🇺🇸 Indianapolis	793	1913
14	Alpha Tau Omega Fraternity ato.org Organization fostering brotherhood and reconciliation among young men, inspired by post-Civil War ideals of peace and unity.	Non-profit Organizations	🇺🇸 Indianapolis	790	1865
15	Phi Kappa Psi Fraternity phikappapsi.com A values-based men's social organization founded in 1852, providing brotherhood and support to members across the United States	Non-profit Organizations	🇺🇸 Indianapolis	781	1852
16	Tau Kappa Epsilon Fraternity (Official)tke.org A college fraternity founded in 1899 with over 230 chapters in the US and Canada, boasting famous alumni like Ronald Reagan and Howard Schultz	Non-profit Organizations	🇺🇸 Indianapolis	712	1899
17	National FFA Organization ffa.org A youth leadership development organization with over 760,000 members across the US, focused on fostering leadership, personal growth, and career success through agricultural education	Non-profit Organizations	🇺🇸 Indianapolis	610	1928
18	American Legion Auxiliary legion-aux.org A volunteer community supporting veterans, military, and their families by advocating for them, volunteering millions of hours, and raising funds	Non-profit Organizations	🇺🇸 Indianapolis	590	1919
19	Delta Sigma Phi Fraternity deltasig.org Men's fraternity with active chapters across the USA, promoting diversity, inclusion, and philanthropy Initiatives include mentorship platforms and support for the American Red Cross	Non-profit Organizations	🇺🇸 Indianapolis	495	1899
20	Circle K International circlek.org An international organization with 12,000+ members across 17 nations, focused on community service, leadership development, and fostering friendships	Non-profit Organizations	🇺🇸 Indianapolis	442	n/a
21	HOPE Foundation hopefoundation.org A non-profit organization specializing in developing high-performing leadership teams and school cultures to ensure student success and close learning gaps	Non-profit Organizations	🇺🇸 Bloomington	421	1989
22	Delta Upsilon International Fraternity deltau.org An international fraternity focused on Building Better Men through Friendship, Character, Culture, and Justice, openly sharing ideals and rituals	Non-profit Organizations	🇺🇸 Indianapolis	377	1834
23	Alpha Sigma Alpha Sorority alphasigmaalpha.org This company promotes friendship, women's influence, and high standards for members through intellectual, physical, social, and spiritual development, leadership, and service	Non-profit Organizations	🇺🇸 Indianapolis	351	1901
24	AHEPA Senior Living ahepaseniorliving.org Non-profit organization established in 1983, enhancing quality of life for elderly and handicapped by promoting health, security, happiness, and independence with dignity	Non-profit Organizations	🇺🇸 Fishers	327	1980
25	YMCA of Greater Fort Wayne fwymca.org A longstanding organization offering programs in Youth Development, Healthy Living, and Social Responsibility through multiple branches in four counties	Non-profit Organizations	🇺🇸 Fort Wayne	320	1858
26	Lutheran Life Villages lutheranlifevillages.org Enhancing lives of older adults in Northeast Indiana with compassionate care rooted in spiritual foundation, providing a better way of living	Non-profit Organizations	🇺🇸 Fort Wayne	255	1931
27	ADEC linktr.ee Promoting a high quality of life for people with disabilities through comprehensive residential and day services, encouraging participation in the community	Non-profit Organizations	🇺🇸 Bristol	255	1952
28	Goodwill Industries of Michiana goodwill-ni.org The company empowers individuals and families through education, training, and job placement to strengthen communities and support economic opportunities	Non-profit Organizations	🇺🇸 South Bend	253	n/a
29	Youth Opportunity Center yocinc.org The organization provides comprehensive behavioral health services to youth and families in Indiana, offering residential, outpatient, and treatment programs	Non-profit Organizations	🇺🇸 Muncie	237	1992
30	TechPoint techpoint.org An industry-led growth initiative in Indiana's digital innovation economy, focused on expanding tech talent, enhancing resource connectivity, and amplifying success stories	Non-profit Organizations	🇺🇸 Indianapolis	219	2003
31	Easterseals Crossroads eastersealscrossroads.org A nonprofit organization providing a wide range of services to help individuals with disabilities achieve personal goals and overcome life's challenges	Non-profit Organizations	🇺🇸 Indianapolis	214	1938
32	Crossroads YMCA crymca.org A not for profit organization dedicated to strengthening community health, providing safe spaces for kids, promoting self-confidence, and supporting healthy families	Non-profit Organizations	🇺🇸 Crown Point	205	n/a
33	LOGAN Community Resources, Inc.logancenter.org A community organization providing advocacy, services, and resources for individuals with developmental and intellectual disabilities, offering a range of support programs and opportunities	Non-profit Organizations	🇺🇸 South Bend	186	1950
34	Destiny Rescue destinyrescue.org An organization rescuing children from sexual exploitation and human trafficking, assisting them in staying safe, operating in 5 regions worldwide and impacting over 15,000 lives	Non-profit Organizations	🇺🇸 Muncie	184	2001
35	United Way of Central Indiana uwci.org A nonprofit organization dedicated to improving lives in Central Indiana through initiatives in education, income, health, and basic needs	Non-profit Organizations	🇺🇸 Indianapolis	183	1918
36	Disciples of Christ disciplesmissionfund.org A faith-based organization that supports the Christian Church through creating congregations, training leaders, establishing camps, promoting anti-racism, and providing humanitarian relief worldwide	Non-profit Organizations	🇺🇸 Indianapolis	182	n/a
37	Fort Wayne Zoo fwzoo.com The zoo connects kids with animals, strengthens families, and inspires conservation efforts through education and care for over 1600 animals	Non-profit Organizations	🇺🇸 Fort Wayne	179	1965
38	Kappa Alpha Theta Headquarters kappaalphatheta.org This organization provides support and opportunities for intellectual and personal growth to college women and alumnae since 1870	Non-profit Organizations	🇺🇸 Indianapolis	175	1983
39	CEDIA cedia.org An association devoted to advocating, connecting, and educating smart home professionals globally, ensuring industry advancement and fostering a community of qualified members	Non-profit Organizations	🇺🇸 Fishers	175	1989
40	Team Red, White & Blue teamrwb.org Established in 2010, this organization provides veterans and communities with local opportunities to connect through fitness, social events, and races	Non-profit Organizations	🇺🇸 Floyds Knobs	174	2010
41	Bona Vista Programs, Inc.dsiservices.org This company supports individuals of all abilities to achieve their full potential through encouragement, independence, and inclusion	Non-profit Organizations	🇺🇸 Kokomo	171	1955
42	JobWorks, Inc.trainwithjobworks.com A nonprofit organization established in 1987, providing services in Fort Wayne, Indiana, United States	Non-profit Organizations	🇺🇸 Fort Wayne	164	1987
43	Hopewell Center, Inc.hopewellcenter.org Providing individualized training and education to residents with disabilities or other needs in Madison County and surrounding areas, while promoting inclusivity and community awareness	Non-profit Organizations	🇺🇸 Anderson	164	n/a
44	Outreach outreachindiana.org Faith-based nonprofit providing basic needs and resources to homeless teens and young adults in Indianapolis to empower them towards stability and transformation	Non-profit Organizations	🇺🇸 Indianapolis	159	1996
45	ICC NTA, LLC icc-nta.org The company provides solutions to businesses and municipalities for building safe, affordable, and sustainable communities worldwide through accredited third-party services	Non-profit Organizations	🇺🇸 Nappanee	159	1976
46	TeenWorks teenworks.org Youth empowerment program in Indianapolis, Indiana focused on economic mobility for teens through various initiatives and opportunities	Non-profit Organizations	🇺🇸 Indianapolis	159	1981
47	Indiana University Lilly Family School of Philanthropy philanthropy.indianapolis.iu.edu A pioneering school focused on education and research in philanthropy, preparing leaders to create positive change globally through innovative programs and initiatives	Non-profit Organizations	🇺🇸 Indianapolis	157	1987
48	Boilermakers Local 374 local374.org A Union Hiring Hall and Training Center with 1000 members, part of the International Brotherhood of Boilermakers, based in Indiana	Non-profit Organizations	🇺🇸 Hobart	156	1936
49	Damien Center damien.org Empowering HIV/AIDS-affected communities in Indiana by providing comprehensive care, prevention, education, and support services to enhance lives and reduce suffering	Non-profit Organizations	🇺🇸 Indianapolis	155	1987
50	At Your School (AYS, Inc.)linktr.ee A nonprofit organization in central Indiana providing Out-of-School Time programs focusing on academics, social-emotional learning, and enrichment activities for students	Non-profit Organizations	🇺🇸 Indianapolis	152	1980
51	Sigma Tau Gamma Fraternity sigtau.org National college fraternity founded in 1920 by WWI veterans Members uphold principles of learning, integrity, excellence, leadership, citizenship, and brotherhood	Non-profit Organizations	🇺🇸 Carmel	150	1920
52	Bosma Enterprises bosma.org A not-for-profit organization providing contract packaging, manufacturing, warehousing, and assembly services, creating employment opportunities for people who are blind or visually impaired	Non-profit Organizations	🇺🇸 Indianapolis	148	1915
53	Phi Kappa Sigma International Fraternity pks.org Providing a valuable learning experience and lifelong commitment, focusing on developing leaders based on strong values and a duty to help others	Non-profit Organizations	🇺🇸 Carmel	147	1850
54	Goodwill Commercial Services goodwillbusiness.org Contract manufacturing, assembly, packaging, and commercial services provider certified to ISO standards, creating employment opportunities for individuals with barriers to work	Non-profit Organizations	🇺🇸 Indianapolis	146	1945
55	Phi Kappa Theta Fraternity phikaps.org A company that develops men into effective leaders who serve society, Fraternity, and God with passion and dedication	Non-profit Organizations	🇺🇸 Indianapolis	146	1889
56	Hood Medicine Initiative, Inc hoodmedicine.org A nonprofit collective of scientists and geeks using science and technology to improve health outcomes in marginalized communities and combat misinformation	Non-profit Organizations	🇺🇸 Indianapolis	6	2020
57	ProAct Indy proactindy.org The company empowers youth and vulnerable populations to transform communities by promoting an outward mindset through training, coaching, and mentoring	Non-profit Organizations	🇺🇸 Suite 1370	2	2010

Turn this list into pipeline

Tamtam finds the decision-makers at every company on a list like this one, with verified emails, phone numbers and the buying signals that tell you when to reach out.

Build your own list, free

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.

The 57 largest Non-profit Organizations companies in Indiana

Turn this list into pipeline

How this list is built

More company lists in Indiana

The same list elsewhere in United States