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STEM ALLIANCE OF LARCHMONT- MAMARONECK INC

LARCHMONT, NY · EIN 460973552 · Form 990 · FY2023 · NTEE O50 · Youth Development · Medium ($1M-$10M) · thestemalliance.org
revenue
$2.9M
expenses
$3.2M
net assets
$586K
employees
129
volunteers
200
program ratio
83%
profile · synthesized from sources

STEM Alliance of Larchmont-Mamaroneck is a youth development nonprofit delivering high-quality STEM education and digital equity programs to underserved communities in Westchester County, NY. It operates hands-on learning initiatives including mobile classrooms, summer enrichment camps, and tech access programs that provide devices and internet to low-income families. The organization partners with schools and community organizations to expand access to STEM learning for K-12 students regardless of economic background.

irs program accomplishments · form 990 part iii · fy2023

What they reported doing

  1. #1 primary $707K
    STEM ENRICHMENT: IN 2024 ALONE, THE STEM ALLIANCE DELIVERED 168 STEM PROGRAMS ACROSS 44 PARTNER SITES SERVING MORE THAN 2,500 STUDENTS AND FAMILIES, A 73% INCREASE OVER THE PREVIOUS YEAR. OVER 60% OF OUR PARTICIPANTS CAME FROM UNDER-RESOURCED COMMUNITIES. EVERY PROGRAM IS ASSESSED USING A NATIONALLY BENCHMARKED EVALUATION TOOL - DIMENSIONS OF SUCCESS - DEVELOPED AT PARTNERS FOR EDUCATION AND RESILIENCE (PEAR). THIS RIGOROUS REVIEW PROCESS SETS OUR STANDARDS, DOCUMENTS SUCCESS/CHALLENGES AND HELPS US SUSTAIN HIGH-QUALITY PROGRAMMING ACROSS DIVERSE SITES THROUGH AN INTERACTIVE PROCESS. WE EMBRACE A CONSTANT, INNOVATIVE GROWTH MINDSET ABOUT OUR WORK. FROM COMPETITIVE ROBOTICS TEAMS AND SITE-BASED SCIENCE LABS TO FAMILY TINKERING NIGHTS AND COUNTYWIDE FESTIVALS, OUR PROGRAMS ARE JOYFUL, CULTURALLY RESPONSIVE, AND DESIGNED TO EXPAND ACCESS AND INCLUSION. WE OFFER OUR PROGRAMS AT REDUCED COST OR FOR FREE BASED ON FUNDING INCLUDING, FOR EXAMPLE, PROVIDING 92 SCHOLARSHIPS TO OUR IMMERSIVE, OPEN WATER STEM SAILS ON LONG ISLAND SOUND. OTHER MAJOR EVENTS INCLUDE OUR ANNUAL STEM-TASTIC FESTIVAL (1,200+ ATTENDEES), THREE FIRST LEGO LEAGUE ROBOTICS TEAMS, AND A DOZEN TINKERING NIGHTS HOSTED REGIONALLY.OUR PROGRAMS ARE POWERED BY A FULL TIME, TRAINED TEAM THAT BRINGS TOGETHER EXPERTISE IN LOGISTICS, INSTRUCTION, AND DATAENSURING THAT WE CAN OPERATE AT SCALE WHILE ALSO ENSURING THAT EVERY PROGRAM RUNS SMOOTHLY, MEETS HIGH STANDARDS, AND DELIVERS MEANINGFUL RESULTS. WITH NEW PROGRAM PARTNERS EXPRESSING INTEREST AND CURRENT WAITLISTS GROWING, OUR ABILITY TO EXPAND OUR REACH WHILE MAINTAINING QUALITY IS AN EXCITING OPPORTUNITY FOR FUTURE INVESTMENT.
  2. #2 $541K
    STEM SUMMER ENRICHMENT: SUMMER IS A CRITICAL TIME IN THE LIVES OF CHILDREN; HOWEVER, IT IS ALSO A TIME OF SIGNIFICANT INEQUITY. RESEARCH SHOWS THAT CHILDREN FROM LOW-INCOME HOUSEHOLDS LACK ACCESS TO QUALITY SUMMER PROGRAMMING WHICH CONTRIBUTES TO A PHENOMENON KNOWN AS "SUMMER SLIDE," THE LOSS OF SKILLS OVER THE SUMMER MONTHS. RESEARCH FURTHER SHOWS THAT INFORMAL STEM LEARNING EXPERIENCES - OUTSIDE OF SCHOOL TIME - HAVE A STRONG IMPACT ON STEM INTEREST, STEM CONFIDENCE AND PERSISTENCE IN STEM LEARNING. THE STEM ALLIANCE MEETS THESE DUAL NEEDS BY BRINGING QUALITY STEM ENRICHMENT TO HIGH NEED COMMUNITIES DURING THE SUMMER MONTHS.THE STEM ALLIANCE'S LEAD SUMMER INITIATIVE IS CO-OP SUMMER ENRICHMENT, A LARGE-SCALE STEM SUMMER CAMP THAT SERVES FAMILIES WITH FINANCIAL NEED. SINCE ASSUMING MANAGEMENT IN 2016, THE STEM ALLIANCE HAS MODERNIZED AND EXPANDED THIS BELOVED COMMUNITY PROGRAM (WITH A 60 YEAR HISTORY), LEADING IT TO EARN THE NATIONAL EXCELLENCE IN SUMMER LEARNING AWARD IN 2023 (ONE OF EIGHT NATIONALLY).THE PROGRAM SERVES 290+ STUDENTS ANNUALLY (90% OF WHOM QUALIFY FOR FREE OR REDUCED LUNCH) AND EMPLOYS MORE THAN 60 LOCAL TEENS AS PAID YOUTH EDUCATORS. STUDENTS ROTATE THROUGH HIGH-ENGAGEMENT STEM LABS, INCLUDING DISSECTION, FLIGHT ENGINEERING, AND STOP-MOTION ANIMATION, ALONGSIDE FIELD TRIPS AND CULTURAL ENRICHMENT EXPERIENCES.IMMEDIATE BENEFITS OF THE PROGRAM ARE MEASURED ANNUALLY: 93% OF CAMPERS AGREED THAT CO-OP MADE THEM A BETTER STUDENT. 98% OF COUNSELORS AGREED THAT THEY TOOK RISKS, TRYING NEW SKILLS, ACTIVITIES AND TASKS 95% OF RISE LEADERS SAID THAT THE PROGRAM HELPED THEM DEVELOP COMMUNICATION AND LISTENING SKILLS. 80% OF PARENTS INDICATED THAT "CONTINUED LEARNING" IS THE PRIMARY REASON WHY THEY CHOSE CO-OP FOR THEIR CHILDBEYOND SHORT TERM OUTCOMES, LONG TERM OUTCOMES INCLUDE: 4X GREATER READING GAINS THAN PEERS 26% INCREASE IN AP/HONORS COURSE ENROLLMENT AMONG ALUMNI HIGH STAFF RETENTION AND FAMILY SATISFACTION RATESTHESE OUTCOMES ARE MADE POSSIBLE BY A DEDICATED TEAM THAT ENSURES SEASONAL STAFF ARE WELL-TRAINED, FAMILIES ARE KEPT INFORMED IN THEIR HOME LANGUAGES, STUDENTS ARRIVE SAFELY, AND PROGRAM QUALITY IS CONTINUOUSLY MONITORED AND IMPROVED.CO-OP SERVES AS A REGION-WIDE CATALYST FOR OPPORTUNITY AND A SUCCESSFUL TESTING GROUND FOR SOME OF OUR MOST INNOVATIVE IDEAS. WITH DEMAND RISING AND A PROVEN INFRASTRUCTURE IN PLACE, WE HAVE EXPANDED OUR WORK TO PARTNER WITH OTHER SUMMER PROGRAMS DURING THE SUMMER MONTHS TO ENHANCE THEIR STEM OFFERINGS. THIS INCLUDES BUT IS NOT LIMITED TO: YWCA NEW ROCHELLE, BOYS AND GIRLS CLUB OF NEW ROCHELLE, PORT CHESTER CARVER CENTER AND G.O.O.D. FOR GIRLS. IN THE SUMMER MONTHS, AS WITH ALL OF OUR PROGRAMMING, WE LEVERAGE PARTNERSHIPS TO BRING OUR QUALITY STEM PROGRAMMING DIRECTLY INTO COMMUNITIES THROUGH TRUSTED PARTNERS.
named programs · 4 · from sources

What they call their work

Co-Op Summer Enrichment
Summer program for 290+ low-income elementary and middle school students in the Mamaroneck school district, featuring STEM labs and recreational activities to prevent summer learning loss.
Connect Westchester
Digital equity initiative training and deploying a Digital Navigator Corps to assess needs and provide technology access and training to underserved populations across Westchester County.
Digital Pathways
Initiative providing free devices, Wi-Fi hotspots, and 15 hours of tech education to low- and moderate-income residents in Westchester County to bridge the digital divide.
STEM Quest
Mobile learning lab offering hands-on STEM experiences in a 33-foot traveling classroom for K-12 students at schools, camps, and community events.
activities · 6 groups

What they do

  • Hands-On STEM Education Programs 4 activities
    • Deliver after-school and in-school STEM education programs
      Provides high-quality, hands-on STEM education programs aligned with Next Generation Science Standards for K-12 students through after-school initiatives, on-site STEM Labs, and a mobile classroom. Offers weekly sessions and customizable programming for schools and community sites.
    • Host family and community STEM engagement events
      Organizes public STEM events including Tinkering Nights for families with age-specific activities on themes like electricity, magnetism, and engineering; Family Tides open hours for marine science; and the annual STEM-Tastic Festival, which attracted over 1,200 attendees.
    • Operate mobile STEM classroom (STEM Quest)
      Runs a 33-foot ADA-compliant mobile classroom called STEM Quest that delivers K-12 STEM learning to schools, camps, festivals, and community sites, serving 16 children at a time with flexible scheduling for larger groups.
    • Provide girls-only and gender-inclusive STEM workshops
      Offers tailored girls-only STEM workshops during afterschool, vacation, and summer programs to support continued engagement in STEM fields, along with inclusive programming through clubs and camps.
  • Summer Academic Enrichment Programs 1 activity
    • Administer and deliver summer STEM enrichment programs
      Serves as lead administrator of the Co-Op Summer Enrichment Program for the Mamaroneck Union Free School District, providing six weeks of STEM-focused academic and recreational programming annually to over 240 elementary students and additional sessions for middle school students. Also offers specialized summer camps including a full-day STEM career exploration camp and a summer hands-on STEM program for rising 6th to 8th graders.
  • Digital Literacy Training and Technology Access 1 activity
    • Deliver digital inclusion and tech equity programs
      Implements the Digital Pathways and Digital Equity Now initiatives to connect low- and moderate-income residents and children in Westchester County to free or low-cost devices, internet access via the Affordable Broadband Act, and tech skills training. Trains and deploys a Digital Navigator Corps to assess needs and provide support. Served over 6,000 clients since 2020, with demonstrated increases in digital literacy and workforce platform proficiency.
  • Youth Workforce Readiness Programs 1 activity
    • Employ and mentor local youth in STEM education roles
      Employs and mentors local teenagers and young adults through the RISE Leader-In-Training program and the Co-Op Summer Enrichment Program, providing leadership development and employment opportunities in STEM education. Employed over 60 local youth in 2024.
  • Financial Aid and Scholarship Access Programs 1 activity
    • Offer financial aid and scholarships for program access
      Provides scholarships and reduced rates for families qualifying for financial aid to ensure equitable access to STEM programs, including immersive experiences such as open water STEM sails and the Mosaic Innovation Camp.
  • STEM Competition and Robotics Programs 1 activity
    • Run student STEM competition and extracurricular teams
      Leads FIRST LEGO League robotics teams, hosts the annual AMC-8 mathematics competition, and operates MAMK Gamers, an Esports competitive team for students meeting regularly at the Tech Clubhouse in Mamaroneck.
financials · form 990 · fy2023
revenue
Total revenue$2.95M
Contributions & grants$2.25M76%
Program service revenue$692K23%
Investment income$6K0%
Other revenue$2K
expenses
Total expenses$3.24M
Program expenses83%
Admin / overhead13%
Fundraising4%
Salaries & benefits$1.90M
Grants paid out$13K
Largest expense lineCompensation
balance sheet
Total assets$1.31M
Cash$121K
Investments$0
Liabilities$724K
Net assets$586K
Liquid reserves0.5 mo
5 years on record · 2019–2023 · YoY revenue +13.4%
leadership · form 990 part vii · fy2023

Who runs it

paid leadership · 1
NameTitleHours/wkCompensation
MARGARET KAUFER PRESIDENT/ CHIEF VISIONARY OFFICER 40 $82K
board members · 11
  • AARTHI MUTHUKRISHNAN — SECRETARY
  • DIANA BARRERA — DIRECTOR
  • ELIZABETH ESTROFF — DIRECTOR
  • IRENE IANUZZI — DIRECTOR
  • JOY CHAILLOU — VICE CHAIR
  • LAUREN BUONOME — DIRECTOR
  • MARK MANLEY — TREASURER
  • NILESH JAIN — DIRECTOR
  • PIETRO CATIZONE — DIRECTOR
  • SARAH COADY — CHAIR
  • STEVEN STIEGLITZ — DIRECTOR
relationships · 13

Who they work with

  • Affordable Broadband Act (ABA) Government — Provides free or low-cost internet access to program participants through the Affordable Broadband Act.
  • Co-Op Summer Enrichment Program Partner — Collaborates on delivering summer STEM and academic enrichment to underserved elementary students.
  • Dormitory Authority of the State of New York Funder — Funded the STEM Quest mobile learning lab through a grant.
  • Hommocks Middle School Partner — Partners annually to host the AMC-8 mathematics competition.
  • Mamaroneck High School Partner — Hosts the Mosaic Innovation Camp at its facility for middle school students.
  • Mamaroneck School District Partner — Collaborates with the Mamaroneck School District to deliver a STEM career exploration program for its students.
  • Mamaroneck School District Partner — Collaborates with the STEM Alliance to operate the Co-Op Summer Enrichment program.
  • Mamaroneck Union Free School District Partner — Hired the STEM Alliance to organize and run the Co-op Summer Enrichment Program for low-income children.
  • Mamaroneck Union Free School District Partner — Partner in administering the Co-Op Summer Enrichment program since 2017.
  • Partners for Education and Resilience (PEAR) Partner — Utilizes PEAR's Dimensions of Success evaluation tool to assess and improve program quality.
  • Village of Mamaroneck Partner — Collaborates with the Village of Mamaroneck to support and strengthen the Marine Education Center's mission.
  • Westchester County Government — Lead government partner in the Connect Westchester digital equity initiative.
  • Westchester County Association Partner — Key organizational partner with The STEM Alliance in leading the Connect Westchester initiative.
strategies · 5

How they approach the work

Named approaches extracted from this org’s sources. Where others share an approach, follow it to see the full set of orgs running it.

  • Digital Equity as Economic Enabler
    methodology: digital_equity
    By expanding access to devices, internet, and tech training through the Digital Navigator Corps and broad partnership networks, the organization improves individual and community economic opportunities, because digital inclusion is foundational to workforce readiness and upward mobility.
  • Equity-Focused Access Model
    methodology: equity_focused_access
    By reserving scholarship seats and delivering free or low-cost STEM programs through community partnerships, the organization increases access for underserved populations, because financial barriers are a primary constraint to participation in out-of-school STEM learning.
  • Experiential Learning with Career Relevance
    methodology: experiential_learning
    By using hands-on STEM activities combined with field trips and professional engagement, the organization reinforces student understanding and motivation, because direct experience and real-world application make abstract STEM concepts tangible and personally relevant.
  • Feedback-Driven Continuous Improvement
    methodology: feedback_driven_evaluation
    By using benchmarked evaluation tools and feedback from clients and partners, the organization ensures high-quality, consistent programming across sites, because iterative assessment leads to more effective and responsive STEM education delivery.
  • Inclusive Environment Through Affinity-Based Programming
    methodology: affinity_group_programming
    By organizing programs for specific affinity groups such as girls-only STEM classes, the organization fosters inclusion and belonging among underrepresented students, because safe, identity-affirming spaces increase engagement and persistence in STEM fields.