| # | Company | Employees |
|---|---|---|
| 1 |
Boys & Girls Clubs of Americabgca.org
A leading nonprofit youth development organization supporting millions of kids and teens through programs, training, and services to help them reach their full potential |
11,507 |
| 2 | 10,627 | |
| 3 |
American Cancer Societycancer.org
Leading organization focused on cancer advocacy, research, patient support, improving lives, and ensuring opportunities for prevention, detection, treatment, survival. |
7,962 |
| 4 |
Habitat for Humanity Internationalhabitat.org
Global movement building safe, affordable homes and vibrant communities through construction, repair, financing, and housing policy advocacy. |
4,625 |
| 5 |
Alpha Delta Pi Sororityalphadeltapi.org
An organization promoting sisterhood, values, academic excellence, and social responsibility for over 260,000 women in collegiate chapters and alumnae associations |
3,143 |
| 6 |
Golden Key International Honour Societygoldenkey.org
A dynamic organization in higher education with over 400 chapters worldwide, recognizing academic achievement and promoting leadership and service among members |
1,859 |
| 7 |
The Carter Centercartercenter.org
Nonprofit organization promoting peace, democracy, human rights, disease prevention, and mental health improvements in over 80 countries worldwide. |
1,224 |
| 8 |
CDC Foundationcdcfoundation.org
This organization collaborates with CDC, philanthropies, corporations, and individuals to raise funds and support critical health protection programs globally |
1,054 |
| 9 |
YMCA of Metropolitan Atlantaymcaatlanta.org
This organization offers diverse programs to strengthen communities through youth development, promoting healthy living, and fostering social responsibility for all |
933 |
| 10 |
Arthritis Foundationarthritis.org
This organization works towards finding a cure for arthritis, providing resources, advocacy, and community connections to help individuals live their best lives |
813 |
| 11 |
HOPE worldwidehopeww.org
A global organization dedicated to bringing hope and changing lives by serving the world's most poor, sick, and suffering populations |
676 |
| 12 |
St. Vincent de Paul Georgiasvdpgeorgia.org
A nonprofit organization in Georgia provides assistance and support to those in need, helping them overcome crises and achieve self-sufficiency |
352 |
| 13 |
The Kectil Program initiative of The Malmar Knowles Family Foundationkectil.com
The organization identifies, mentors, and networks high-potential youth from developing countries in areas such as leadership, entrepreneurship, and environmental sustainability |
338 |
| 14 |
Sheltering Arms Early Education and Family Centersshelteringarmsforkids.com
Nonprofit providing nationally-acclaimed early education and child care services for infants, toddlers, and preschoolers to build stronger families and communities |
325 |
| 15 |
In Touch Ministriesintouchglobal.org
The company's mission is to guide people globally towards a deeper connection with Jesus Christ and to support local churches |
295 |
| 16 |
United Way of Greater Atlantaunitedwayatlanta.org
The organization works to improve child well-being across Greater Atlanta by providing opportunities and resources for youth in underserved communities |
283 |
| 17 |
Atlanta Botanical Gardenatlantabg.org
The company operates botanical gardens in Atlanta and Gainesville, hosting events in beautiful garden settings to support plant conservation and education |
278 |
| 18 |
Points of Lightpointsoflight.org
This organization mobilizes millions of volunteers to donate 30 million hours of service annually, engaging with nonprofits, corporations, and local communities to create lasting impact |
186 |
| 19 |
Georgia Parent Support Network, Inc.gpsn.org
Supporting, educating, and advocating for children and youth with mental illness and behavioral differences, along with their families, through various services and resources statewide |
183 |
| 20 |
Wizards of Opswizops.org
A dedicated Slack community for operations professionals to connect, learn, and share expertise without any sales pitches, offering online networking and industry know-how for free |
175 |
| 21 |
Hands On Atlantahandsonatlanta.org
The company works to mobilize the community in Atlanta to address the city's top needs, aiming for a more engaged and equitable community |
174 |
| 22 |
Atlanta Area Council, Scouting Americascoutingatl.org
This organization prepares young people to make ethical choices by instilling values through the Scout Oath and Law in the Atlanta area |
161 |
| 23 |
Junior Achievement of Georgialinktr.ee
Transforming student experience with dynamic learning solutions in career readiness, entrepreneurship, and financial literacy, impacting over 120,000 students in Georgia annually |
159 |
| 24 |
International Society of Arboricultureisa-arbor.com
Promoting arboriculture through research, education, and advocacy to raise awareness of the benefits of trees and ensure professional tree care worldwide |
154 |
| 25 |
Metro Atlanta Chambermetroatlantachamber.com
Support businesses, colleges, and nonprofits across 29 counties, promoting economic growth, business-friendly policies, and regional attractiveness. |
151 |
| 26 |
Atlanta Humane Societyatlantahumane.org
A no-kill shelter in Atlanta providing shelter, veterinary care, adoption, and community outreach for animals, emphasizing compassion and unity against cruelty |
148 |
| 27 |
Untolduntold.org
An organization in East Africa mobilizing churches to provide holistic care for families impacted by HIV/AIDS, addressing physical and spiritual needs |
147 |
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.
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 10, 2026.
More company lists in Atlanta
- The largest companies in Atlanta 1,146
- SaaS companies in Atlanta 105
- IT Services and IT Consulting companies in Atlanta 100
- Financial Services companies in Atlanta 83
- Software Development companies in Atlanta 77
- Hospitals and Health Care companies in Atlanta 60
- Real Estate companies in Atlanta 50
- Hospitality companies in Atlanta 33
- Insurance companies in Atlanta 32
- Higher Education companies in Atlanta 31
- Advertising Services companies in Atlanta 28
- Business Consulting and Services companies in Atlanta 27
- Staffing and Recruiting companies in Atlanta 26
The same list elsewhere in United States
- Non-profit Organizations companies in the United States 1,967
- Non-profit Organizations companies in New York 199
- Non-profit Organizations companies in Washington 143
- Non-profit Organizations companies in Chicago 65
- Non-profit Organizations companies in Los Angeles 41
- Non-profit Organizations companies in San Francisco 38
- Non-profit Organizations companies in Boston 36
- Non-profit Organizations companies in Indianapolis 30