American Chemical Society
Nonprofit profile at a glance
- EIN
- 530196572
- IRS 990 coverage
- 2010–2024
- Official website data refreshed
- Sep 2026
- Forms available
- Form 990 2024, Form 990-T 2024, Form 990-N 2023
- Location
- Washington, DC, USA
- Phone
- 2028724596
- Rating
- 85
- Verdict
- STRONG
- Rating confidence
- Standard
- Sector
- Chemistry, Chemical Engineering
Reported finances
- Revenue
- $819,099,460
- Expenses
- $756,637,831
- Assets
- $2,229,670,372
- Liabilities
- $474,251,283
Source: IRS Form 990. Selected filing: tax year 2024. Amounts in USD.
Leadership & pay
27 people listed
Executive titles in this filing
- MANUEL GUZMAN (PRESIDENT, CAS)
- ALBERT HORVATH (CHIEF EXECUTIVE OFFICER)
- JAMES MILNE (PRESIDENT, ACS PUBS)
- MARY K CARROLL (PRESIDENT)
- DOROTHY J PHILLIPS (PRESIDENT-ELECT)
- JUDITH C GIORDAN (IMMEDIATE PAST PRESIDENT)
Highest reported compensation
- MANUEL GUZMAN (PRESIDENT, CAS): $1,443,386 total reported compensation
- ALBERT HORVATH (CHIEF EXECUTIVE OFFICER): $1,113,221 total reported compensation
- JAMES MILNE (PRESIDENT, ACS PUBS): $740,275 total reported compensation
Source: IRS Form 990. Selected filing: tax year 2024. Names and roles reflect this filing, not necessarily current officeholders.
Overview
Mission
The american chemical society is a federally chartered organization whose mission is to advance the broader chemistry enterprise and its practitioners for the benefit of earth and its people.
What it reported doing in 2024
Education and membership in 2024, acs provided formal and informal educational resources, instruction, and mentorship for elementary, secondary, undergraduate, and graduate students and educators. The american association of chemistry teachers (aact) celebrated its 10th anniversary in 2024, ending the year with more than 7,300 members from 80 countries. Since its inception, aact has published over 1,100 resources written by teachers of chemistry, organized over 220 webinars and dozens more on-site workshops, and received over 10 million web visits. The us chemistry olympiad team won three gold and one silver medals at the 56th international chemistry olympiad. The impact of science outreach, including chemists celebrate earth week and national chemistry week, was enhanced by a website for outreach activities, chemistry festival grant awards, and two outreach summits. Working with the five scientific societies that established the inclusive graduate education network, the acs bridge project extended its reach in 2024 to include 45 chemical sciences departments, over 150 acs bridge fellows, and a collection of professional development activities focused on assisting those who receive doctoral degrees in chemical sciences. Over 95 students were financially supported to attend the 2024 acs spring/fall meetings. The second rapid fire symposium held during the acs fall meeting highlighted research achievements of eight bridge fellows. In partnership with eli lilly, 50 acs bridge fellows, graduate students, and posdoctoral scholars participated in the bridge career kickstarter workshop held at eli lilly headquarters in indianapolis, in. Furthermore, the bridge program extended its support to 25 students from hbcus by enabling their attendance at the acs green chemistry & engineering conference and 25 more to participate in the national organization for the professional advancement of black chemists and chemical engineers conference. Working with 70 coordinators and almost 400 mentors, acs project seed offered in-person and virtual summer research experiences to 371 high school students in 2024, along with a week-long virtual orientation focused on lab preparedness and professional development and weekly virtual seminars. For the 2023-2024 school year, acs awarded 51 project seed college scholarships to alumni entering their freshman year in college. The initiative on fostering a skilled technical workforce expanded engagement of an inclusive network of stakeholders critical to the recruitment and preparation of students and potential employees using science and engineering skills in their jobs but not holding a bachelor's degree. Visits to the chemical technical professionals' website, launched in 2023, increased 88 percent. Three community college projects each received ~$20k from the acs prepare ctp seed grant program pilot. A new discovery report "empowering chemical technical professionals" was released. Recognition, workshops, and grants were offered to students and educators. Electronic credentials were offered to over 1200 certified graduates of acs-approved programs. A discussion series focused on undergraduate education for chairs of chemistry departments continued in 2024. A yearlong virtual community of practice for community college professors completed its inaugural year in 2024. Participants learned how to incorporate active learning into their courses and authored teaching modules that will be available to chemistry educators. Acs hosted the 2nd lasting encounters between aspiring and distinguished scientists (leads) conference in 2024. This 3-day event, designed to prepare high-potential young professionals and students for successful and impactful careers that address global challenges was attended by 50 aspiring and over 20 distinguished scientists. The acs institute, an online portal to a collection of professionals and career development resources, has eight centers of learnng and more than 120 courses and worksho
Operating model
- Revenue model
- Earned-program. 96% of the money available for current operations came from fees and other program revenue.
- Distribution model
- Direct operator. The filing allocates 96% of reported program-service expenses outside its grant, affiliate-payment, and member-benefit lines. This expense classification does not rule out separately announced grant awards.
- Includes noncash contributions: Reported contributions include donated property or goods.
The verdict
STRONG - A large share of available resources goes toward mission work and the filed numbers largely add up. Fundraising costs are high for each dollar raised and the filing reports few safeguards for money sent abroad.
Rating breakdown
- Financial Efficiency: 77
- Transparency & Controls: 89
- Accountability: 96
- Sustainability: 70
- Growth: 100
Detailed rating inputs
Financial Efficiency
- Mission deployment rate: 83.1%; rating input score 83
- Program expense ratio: 87.8%; rating input score 88
- Fundraising efficiency: $3.5 raised per $1 spent on fundraising; rating input score 13; 13th percentile among comparable filings
Transparency & Controls
- Consistency checks: 94.4%; rating input score 94; 31st percentile among comparable filings
- Pay-setting controls: 6 of 6 controls in place; rating input score 100
- Compensation committee: Pass
- Independent consultant: Pass
- Other Form 990s reviewed: Pass
- Written employment contract: Pass
- Compensation survey or study: Pass
- Board or committee approval: Pass
- Foreign activity oversight: 4 of 8 controls in place; rating input score 50
- Claims monitoring procedures: Pass
- Requires narrative reports: Pass
- Conducts field audits: Pass
- May suspend future funding: Fail
- Requires financial reports: Pass
- Conducts site visits: Fail
- Requires grant agreements: Fail
- May require repayment: Fail
- Grant itemization coverage: 95.9%; rating input score 96; 29th percentile among comparable filings
- Major donor itemization: Yes; rating input score 100
- Related-party transparency: Yes; rating input score 100
Accountability
- Independent voting board: 93.3%; rating input score 93; 44th percentile among comparable filings
- Governance controls: 9 of 9 controls in place; rating input score 100
- Conflict-of-interest policy: Pass
- Whistleblower policy: Pass
- Document-retention policy: Pass
- CEO compensation review process: Pass
- Other executive compensation review process: Pass
- Form 990 shared with the board: Pass
- Board meeting minutes documented: Pass
- Audit committee oversight: Pass
- Independent financial-statement audit: Pass
Sustainability
- Operating margin: 7.6%; rating input score 66; 66th percentile among comparable filings
- Total-asset coverage ratio: 2.95; rating input score 75; 75th percentile among comparable filings
- Liabilities to assets ratio: 0.21; rating input score 67; 67th percentile among comparable filings
- Officer compensation ratio: 1%; rating input score 74; 74th percentile among comparable filings
Growth
- Program expense growth: 3.6% per year; rating input score 100; 28th percentile among comparable filings
- Revenue growth: 3.2% per year; rating input score 100; 24th percentile among comparable filings
- Asset growth: 4.5% per year; rating input score 100; 31st percentile among comparable filings
Details
- What they do: 6 programs and campaigns described on the official site
- Where the money goes: 83.1% of revenue deployed · 87.8% of spending went to programs
- Governance: 14 of 15 board members independent · 9 of 9 filing controls reported
- Programs: 3 filed program accomplishments · $664M in reported program spending
- Leadership: top reported pay $1.4M · 27 people listed · 6 of 6 pay-setting controls reported
- Highest-paid contractors: 5 contractors listed · $39.9M reported
- Consistency: 44 of 46 current checks pass · 2 findings to review
- Schedules: 11 filed schedules · includes major donors, foreign activity, grants, executive pay, and related organizations
- Filing history: 14 filing years from 2010 to 2024
- Contacts: How to reach this organization
- Money network: 352 filed money-flow records
- Related organizations: 344 filed related-organization links
- Grant readiness: Federal tax and exclusion status, award history, and grant-maker relationships.
- People: Everyone the filings name, and which of them the filings identify by more than a name.
- Staff and benefit plans: Retirement and health plans the organization files with the Department of Labor, and the people in them.
Key Signals
Signals prioritize questions for review. They are not findings of misconduct.
Grant-readiness screening is separate from the live rating, not a measure of program quality. Review the source records before making a grant decision.
- High — Financial Efficiency: Fundraising efficiency scored 13/100.
- Review — Transparency & Controls: Foreign activity oversight: 4 of 8 not reported.
- Review — Transparency & Controls: Domestic grant itemization did not reconcile in the filed values.
- Review — Transparency & Controls: Foreign grant itemization did not reconcile in the filed values.
- High — Grant Readiness: Federal audit findings: this organization reported findings in its latest federal Single Audit.