Stem Alliance of Larchmont-Mamaroneck Inc
Public records show a registered, tax-exempt organization in good standing.
What it says it does
THE STEM ALLIANCE CREATES ACCESS TO HIGHER-PAYING, HIGH-DEMAND CAREERS FOR UNDERREPRESENTED GROUPS BY CONNECTING CHILDREN AND COMMUNITY MEMBERS TO QUALITY STEM EDUCATION AND DIGITAL SKILLS. THROUGH HANDS-ON LEARNING AND SKILL-BUILDING, THE ORGANIZATION FOSTERS SELF-EMPOWERMENT, EQUIPPING INDIVIDUALS WITH THE STEM SKILLS THAT LEAD TO LONG-TERM OPPORTUNITY AND FINANCIAL STABILITY. THE STEM ALLIANCE ALSO SUPPORTS THE GROWTH OF CURRENT AND FUTURE STEM LEADERS, BRINGING DIVERSE REPRESENTATION TO STEM FIELDS AND ENSURING THAT A RANGE OF PERSPECTIVES CAN DRIVE INNOVATIVE SOLUTIONS TO THE CHALLENGES OF TODAY AND TOMORROW.
- Income
- $2.9 million
- Spending
- $2.9 million
- Spent on programs
- 82%
- Reserves
- 0.6 months of spending
- Largest source of income
- donations and private grants, 49%
- Employees
- 128
- Volunteers
- 200
- Highest pay
- $84,044, president/ cvo
Source: Form 990 for the year ending August 31, 2025, filed with the Internal Revenue Service. Rating method 2026.2. How we rate
Financial health
Weak: 42 out of 100. Higher than 9% of charities in its peer group (youth development, $1m to $10m).
Reserves
4 of 35Spendable reserves would cover 0.6 months of spending.
Debt
5 of 20It owes 56% of what it owns.
Living within its means
8 of 15Spending exceeded income by 2% of income.
Income trend
10 of 15Income fell 2% on the year before.
Spending floor
15 of 1581% of spending went to programs and raising each dollar of donations cost 8 cents.
Source: Form 990 for the year ending August 31, 2025, filed with the Internal Revenue Service. Rating method 2026.2. How we rate
Governance
Strong: 100 out of 100. Higher than 64% of charities in its peer group (youth development, $1m to $10m).
Independent board
25 of 2510 of 11 voting board members are independent.
Conflict of interest policy
15 of 15Has a written conflict of interest policy.
Whistleblower policy
8 of 8Has a written whistleblower policy.
Record keeping policy
7 of 7Has a written policy on keeping and destroying records.
Board minutes
5 of 5Keeps minutes of board meetings.
Board sees the tax return
10 of 10Gave the board a copy of this return before filing it.
Pay set independently
5 of 5Sets its chief executive's pay through independent review and comparison.
Independent check of accounts
15 of 15Its accounts were audited by an independent accountant.
No reported misuse
10 of 10Reports no diversion of assets, excess benefits or loans to insiders.
Source: Form 990 for the year ending August 31, 2025, filed with the Internal Revenue Service. Rating method 2026.2. How we rate
Impact evidence
Describes programs. Its tax return describes what it does but we have found no measurable results in it.
Programs described in its return (3)
- $1.1 million spent. DIGITAL EQUITY: THE STEM ALLIANCE'S DIGITAL PATHWAYS INITIATIVE CLOSES THE DIGITAL DIVIDE BY CONNECTING LOW- AND MODERATE-INCOME RESIDENTS ACROSS WESTCHESTER COUNTY AND NEW YORK CITY TO COMPUTERS, INTERNET ACCESS, AND TECH SKILLS TRAINING. THE STEM ALLIANCE IS A REGIONAL LEADER IN DIGITAL EQUITY AND A TRUSTED PARTNER TO STATE AND LOCAL GOVERNMENTS IN ADMINISTERING THESE PROGRAMS. THE NEED IS ACUTE: AMONG THOSE SERVED, 93% NEED A DEVICE, AND 84% OF THOSE HAVE NO COMPUTER IN THE HOME AT ALL, WHILE 71% NEED BASIC COMPUTER TRAINING AND 64% OF THOSE HAD NEVER RECEIVED ANY. THIS IS NOT A TEMPORARY OR PANDEMIC-ERA PROBLEM. IT IS A PERSISTENT STRUCTURAL BARRIER THAT LOCKS RESIDENTS OUT OF THE BASIC DIGITAL SKILLS THAT 92% OF JOBS NOW REQUIRE, MAKING FULL PARTICIPATION IN A DIGITALLY DRIVEN ECONOMY IMPOSSIBLE WITHOUT INTERVENTION. SINCE 2020, THE INITIATIVE HAS DISTRIBUTED MORE THAN 5,200 COMPUTING DEVICES, CONNECTED OVER 2,300 HOUSEHOLDS TO THE INTERNET, AND SCREENED MORE THAN 5,500 RESIDENTS FOR DIGITAL NEED.THE RESULTS ESTABLISH A CLEAR PATHWAY FROM DIGITAL ACCESS TO ECONOMIC OPPORTUNITY. AMONG 3,855 CLIENTS SURVEYED BEFORE AND AFTER COMPLETING THE PROGRAM'S 15-HOUR TECH EDUCATION COURSE, COMFORT ON CORE WORKFORCE PLATFORMS SUCH AS WORD, EXCEL, AND CALENDAR MORE THAN DOUBLED, REACHING MAJORITY CONFIDENCE ACROSS EVERY PLATFORM. SPANISH-SPEAKING PARTICIPANTS, WHO ENTERED WITH THE LEAST CONFIDENCE, MADE THE LARGEST GAINS AND NARROWED THE GAP WITH THEIR ENGLISH-SPEAKING PEERS ACROSS MOST MEASURES. THE LONGER-TERM IMPACT IS DIRECT AND LASTING: IN A FOLLOW-UP SURVEY OF 1,344 CLIENTS CONDUCTED THREE TO SIX MONTHS AFTER SERVICES, 79% OR MORE REPORTED AN INCREASED LIKELIHOOD OF USING THE INTERNET TO ACCESS HEALTHCARE AND ESSENTIAL GOODS AND SERVICES, 79% REPORTED AN INCREASED LIKELIHOOD OF PURSUING FURTHER TRAINING, AND 67% REPORTED AN INCREASED LIKELIHOOD OF OBTAINING A BETTER-PAYING JOB. IN A DIGITALLY DRIVEN ECONOMY, DIGITAL INCLUSION IS AMONG THE MOST DIRECT AND SCALABLE LEVERS AVAILABLE FOR WORKFORCE DEVELOPMENT AND INDIVIDUAL EMPOWERMENT.
- $641,825 spent. STEM EDUCATION AND EQUITY: THE STEM ALLIANCE'S STEM EDUCATION AND EQUITY PROGRAMS BRIDGE SYSTEMIC GAPS IN STEM LEARNING THROUGH HANDS-ON, STANDARDS-ALIGNED PROGRAMMING ACROSS ALL STEM DISCIPLINES. THE NEED IS URGENT: WOMEN MAKE UP ONLY 35% OF THE U.S. STEM WORKFORCE AND PEOPLE OF COLOR ONLY 10%, WHILE MORE THAN HALF OF GEN Z STUDENTS REPORT LIMITED EXPOSURE TO CAREER-FOCUSED STEM. IN THE 2024-2025 YEAR, THE STEM ALLIANCE DELIVERED MORE THAN 190 HIGH-QUALITY PROGRAMS, TOTALING OVER 1,000 PARTICIPANT HOURS, IN PARTNERSHIP WITH 50 LOCAL ORGANIZATIONS. THIS WORK SERVED MORE THAN 4,300 STUDENTS FROM PRE-K THROUGH HIGH SCHOOL, WITH 60% OF PROGRAMMING REACHING RACIALLY DIVERSE COMMUNITIES. THE IMPACT IS MEASURABLE: ACROSS STUDENT SURVEYS, PARTICIPANTS REPORTED MARKED GAINS IN STEM CURIOSITY, CONFIDENCE, AND IDENTITY AFTER AS FEW AS EIGHT HOURS OF PROGRAMMING.EQUITY IS BUILT INTO THE PROGRAM'S DESIGN. CLASSES, WORKSHOPS, AND POP-UPS ARE OFTEN ORGANIZED FOR AFFINITY GROUPS, SUCH AS ALL-GIRLS COHORTS, CREATING SAFE AND WELCOMING ENVIRONMENTS FOR UNDERSERVED STUDENTS. REDUCED AND FULLY WAIVED TUITION ENSURES THAT ECONOMIC NEED IS NEVER A BARRIER TO PARTICIPATION. THE STEM ALLIANCE ALSO EXTENDS LEARNING INTO THE COMMUNITY YEAR-ROUND THROUGH PROGRAMS INCLUDING STEM-TASTIC, A FREE PUBLIC FESTIVAL SERVING MORE THAN 1,000 ATTENDEES; STEM SAILS, A HANDS-ON MARINE SCIENCE EXPERIENCE ABOARD SCHOONERS ON THE LONG ISLAND SOUND; COMPETITIVE FIRST LEGO LEAGUE ROBOTICS TEAMS THAT ADVANCED TO THE REGIONAL FINALS AT RPI FOR THE SECOND CONSECUTIVE YEAR; TINKERING NIGHTS THAT ENGAGE CHILDREN AND PARENTS IN HANDS-ON MAKING; AND AN AMC-8 MATH CLUB PREPARING MIDDLE SCHOOLERS FOR NATIONAL COMPETITION. TOGETHER, THESE PROGRAMS MEET EVERY CHILD WHERE THEY ARE, OFFERING BOTH INTENSIVE STEM EXPERIENCES AND LIGHTER-TOUCH INTRODUCTORY SO THAT PARTICIPATION IS OPEN TO ALL, FROM THE ALREADY ENTHUSED TO THE MERELY CURIOUS.
- $598,264 spent. CO-OP SUMMER ENRICHMENT: NOW IN ITS SIXTIETH YEAR, CO-OP SUMMER ENRICHMENT IS THE STEM ALLIANCE'S RESPONSE TO SUMMER LEARNING LOSS, THE DECLINE IN READING AND MATH SKILLS THAT DISPROPORTIONATELY AFFECTS CHILDREN FROM LOW-INCOME HOUSEHOLDS AND WIDENS THE ACHIEVEMENT GAP YEAR AFTER YEAR. AS A FIVE WEEK, FULL DAY PROGRAM, CO-OP DELIVERS HIGH-QUALITY, HANDS-ON STEM LEARNING TO MORE THAN 250 STUDENTS, BLENDING RIGOROUS ACADEMIC ENRICHMENT WITH THE RITUALS THAT MAKE SUMMER MEANINGFUL: COLOR WARS, SWIM INSTRUCTION, AND FIELD TRIPS TO STEM INSTITUTIONS SUCH AS THE INTREPID MUSEUM AND THE NEW YORK HALL OF SCIENCE. THE COMBINATION IS DELIBERATE. ENGAGING PROGRAMMING SUSTAINS THE CONSISTENT ATTENDANCE THROUGH WHICH CO-OP SLOWS SUMMER SLIDE, SUPPORTS ACADEMIC GROWTH AND KEEPS STUDENTS ON TRACK FOR THE YEAR AHEAD.THE PROGRAM'S OUTCOMES DEMONSTRATE ITS EFFECTIVENESS. IN 2025, 83% OF CAMPERS HELD OR IMPROVED THEIR READING SCORES, 91% MAINTAINED CONSISTENT ATTENDANCE, AND 100% OF EDUCATORS REPORTED THAT CO-OP HELPED STUDENTS MEET STATE AND DISTRICT BENCHMARKS. FOR THE MAJORITY OF FAMILIES SERVED, THE PROGRAM FILLS A CRITICAL GAP: 74% OF CAMPERS HAD NO SUMMER ALTERNATIVE, AND 63% REPORTED THAT CO-OP WAS THEIR CHILD'S FIRST STEM ENRICHMENT EXPERIENCE. CO-OP EXTENDS THROUGH THE MIDDLE SCHOOL YEARS THROUGH TWO ADDITIONAL PROGRAMS: MOSAIC INNOVATION CAMP AND A FIVE-WEEK RISE LEADERSHIP-IN-TRAINING PROGRAM. THE STEM ALLIANCE ALSO EMPLOYS MORE THAN 60 LOCAL TEENAGERS AND YOUNG ADULTS AS COUNSELORS AND MENTORS, ESTABLISHING A PATHWAY THAT BUILDS SKILLS AND OPPORTUNITY WELL BEYOND A SINGLE SUMMER.
Source: Form 990 for the year ending August 31, 2025, filed with the Internal Revenue Service. Rating method 2026.2. How we rate
Legitimacy checks
Is it registered with the IRS? Passed.
Listed in the IRS master file of tax-exempt organizations as a 501(c)(3) charitable organization.
Source: Exempt Organizations Business Master File, Internal Revenue Service, file dated September 7, 2026.
Has the IRS revoked its tax-exempt status? Passed.
Not on the IRS automatic revocation list.
Source: Automatic revocation of exemption list, Internal Revenue Service, file dated September 30, 2026.
Are donations tax-deductible? Passed.
On the IRS list of organizations eligible to receive tax-deductible contributions.
Source: Publication 78 data: organizations eligible for tax-deductible contributions, Internal Revenue Service, file dated September 10, 2026.
Is it keeping up with its IRS filings? Passed.
Most recent return on file covers the year ending August 2025.
Source: Exempt Organizations Business Master File, Internal Revenue Service, file dated September 7, 2026.
How long has it been tax-exempt? Passed.
Recognized by the IRS since June 2015.
Source: Exempt Organizations Business Master File, Internal Revenue Service, file dated September 7, 2026.
Is it in good standing with state regulators? Passed.
Not on California's list of charities barred from soliciting. Other states are not yet checked.
Source: May Not Operate or Solicit for Charitable Purposes list, California Attorney General, Registry of Charities and Fundraisers, file dated October 7, 2026.
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