Civic Intelligence

Math-Science Nucleus

EIN 94-2862140 • 501(c)3 • Fremont, CA

Profile

Math Science Nucleus is a non-profit 501c3 educational and research organization composed of scientists educators and community members founded in 1982. It serves as an online science resource center to assist school districts teachers and administrators around the world. The major goal is to develop problem solving capacity through science for the world's children. We provide a free online reference science curriculum for elementary grades. We also manage with field trips and classes the Children's Natural History Museum fossils of local area Tule Ponds at Tyson Lagoon environmental education Fremont Earthquake Exhibit California Nursery Historical Park and Masonic Home Reforestation and Composting Project.

4074 Eggers DrFremont, CA 94536-6001

http: msnucleus.org

Siviq Scores

Precomputed percentiles relative to similar nonprofits. These scores are descriptive rather than judgmental.

Liabilities / Assets

18th percentile

0.00x

Tied with the lowest-debt nonprofits in its peer group.

501(c)3 • $1M-$5M nonprofits • Source year 2025

Liabilities / Revenue

19th percentile

0.00x

Tied with the lowest-debt nonprofits in its peer group.

501(c)3 • $1M-$5M nonprofits • Source year 2025

Net Margin

15th percentile

-19%

Higher net margin than 15% of similar nonprofits.

501(c)3 • $1M-$5M nonprofits • Source year 2025

Top Officer Pay

Score unavailable

No value available

No filing with officer rows is available for this organization yet.

Asset Growth

6th percentile

-30%

Faster asset growth than 6% of similar nonprofits.

501(c)3 • $1M-$5M nonprofits • Annualized from 2023 to 2025

Revenue Growth

88th percentile

64%

Faster revenue growth than 88% of similar nonprofits.

501(c)3 • $1M-$5M nonprofits • Annualized from 2023 to 2025

Balance Sheet
Liabilities / Assets18th percentile

Assets

Down

$2,764,720

Down $333,194 (-11%) from 2024

Liabilities

Flat

$0

Flat from 2024

Net Assets

Down

$2,764,720

Down $333,194 (-11%) from 2024

Operations
Liabilities / Revenue19th percentileNet Margin15th percentile

Revenue

Down

$1,756,800

Down $1,552,634 (-47%) from 2024

Expenses

Up

$2,089,994

Up $13,289 (+0.6%) from 2024

Net Income

Down

-$333,194

Down $1,565,923 (-127%) from 2024

Trend Graphs

Balance Sheet Trend

Asset Growth6th percentile

Grouped bars show assets, liabilities, and net assets across loaded filings.

$6.0M$4.0M$2.0M$0Assets 2011: $560,000Liabilities 2011: $0Net Assets 2011: $560,0002011Assets 2012: $555,000Liabilities 2012: $0Net Assets 2012: $555,0002012Assets 2013: $545,000Liabilities 2013: $0Net Assets 2013: $545,0002013Assets 2014: $550,000Liabilities 2014: $0Net Assets 2014: $550,0002014Assets 2015: $640,319Liabilities 2015: $0Net Assets 2015: $640,3192015Assets 2016: $622,000Liabilities 2016: $0Net Assets 2016: $622,0002016Assets 2017: $440,000Liabilities 2017: $0Net Assets 2017: $440,0002017Assets 2018: $723,287Liabilities 2018: $0Net Assets 2018: $723,2872018Assets 2019: $805,430Liabilities 2019: $0Net Assets 2019: $805,4302019Assets 2020: $838,430Liabilities 2020: $0Net Assets 2020: $838,4302020Assets 2021: $915,398Liabilities 2021: $0Net Assets 2021: $915,3982021Assets 2022: $5,958,000Liabilities 2022: $0Net Assets 2022: $5,958,0002022Assets 2023: $5,562,636Liabilities 2023: $0Net Assets 2023: $5,562,6362023Assets 2024: $3,097,914Liabilities 2024: $0Net Assets 2024: $3,097,9142024Assets 2025: $2,764,720Liabilities 2025: $0Net Assets 2025: $2,764,7202025

Highlighted filing

2025

Assets$2,764,720
Liabilities$0
Net Assets$2,764,720
Open 2025 Filing

Operations Trend

Revenue Growth88th percentile

Revenue, expenses, and net income by year, with the latest filing highlighted.

$4.0M$3.0M$2.0M$1.0M$0-$1.0MRevenue 2011: $300,684Expenses 2011: $211,341Net Income 2011: $89,3432011Revenue 2012: $296,639Expenses 2012: $216,434Net Income 2012: $80,2052012Revenue 2013: $287,224Expenses 2013: $210,303Net Income 2013: $76,9212013Revenue 2014: $324,898Expenses 2014: $249,062Net Income 2014: $75,8362014Revenue 2015: $369,249Expenses 2015: $153,118Net Income 2015: $216,1312015Revenue 2016: $359,274Expenses 2016: $269,828Net Income 2016: $89,4462016Revenue 2017: $351,114Expenses 2017: $283,813Net Income 2017: $67,3012017Revenue 2018: $376,810Expenses 2018: $293,523Net Income 2018: $83,2872018Revenue 2019: $212,825Expenses 2019: $294,899Net Income 2019: -$82,0742019Revenue 2020: $317,098Expenses 2020: $284,098Net Income 2020: $33,0002020Revenue 2021: $324,412Expenses 2021: $247,444Net Income 2021: $76,9682021Revenue 2022: $447,516Expenses 2022: $404,914Net Income 2022: $42,6022022Revenue 2023: $657,123Expenses 2023: $681,249Net Income 2023: -$24,1262023Revenue 2024: $3,309,434Expenses 2024: $2,076,705Net Income 2024: $1,232,7292024Revenue 2025: $1,756,800Expenses 2025: $2,089,994Net Income 2025: -$333,1942025

Highlighted filing

2025

Revenue$1,756,800
Expenses$2,089,994
Net Income-$333,194
Open 2025 Filing

Filings

Most recent year

2025 • Form 990Detailed filing. Detailed filing data is available for this year.

Open filing
Assets
$2,764,720
Liabilities
$0
Net assets
$2,764,720
Revenue
$1,756,800
Expenses
$2,089,994
Net income
-$333,194
Balance SheetOperations
YearAssetsLiabilitiesNet AssetsRevenueExpensesNet Income
2025Detailed filing. Detailed filing data is available for this year.$2.76$0.00$2.76$1.76$2.09$0.33
2024Detailed filing. Detailed filing data is available for this year.$3.10$0.00$3.10$3.31$2.08$1.23
2023Detailed filing. Detailed filing data is available for this year.$5.56$0.00$5.56$0.66$0.68$0.02
2022Detailed filing. Detailed filing data is available for this year.$5.96$0.00$5.96$0.45$0.40$0.04
2021Detailed filing. Detailed filing data is available for this year.$0.92$0.00$0.92$0.32$0.25$0.08
2020Detailed filing. Detailed filing data is available for this year.$0.84$0.00$0.84$0.32$0.28$0.03
2019Summary only. Only limited summary data is available for this year.$0.81$0.00$0.81$0.21$0.29$0.08
2018Summary only. Only limited summary data is available for this year.$0.72$0.00$0.72$0.38$0.29$0.08
2017Summary only. Only limited summary data is available for this year.$0.44$0.00$0.44$0.35$0.28$0.07
2016Summary only. Only limited summary data is available for this year.$0.62$0.00$0.62$0.36$0.27$0.09
2015Summary only. Only limited summary data is available for this year.$0.64$0.00$0.64$0.37$0.15$0.22
2014Summary only. Only limited summary data is available for this year.$0.55$0.00$0.55$0.32$0.25$0.08
2013Summary only. Only limited summary data is available for this year.$0.55$0.00$0.55$0.29$0.21$0.08
2012Summary only. Only limited summary data is available for this year.$0.56$0.00$0.56$0.30$0.22$0.08
2011Summary only. Only limited summary data is available for this year.$0.56$0.00$0.56$0.30$0.21$0.09
Latest Filing Detail
Jump To
Filing Snapshot
Filing Period
Jan 1, 2025 to Dec 31, 2025
Signed
Feb 11, 2026
Return Version
2025v4.0
Gross Receipts
$1,756,800
Mission and Program Overview

Mission

Math Science Nucleus is a non-profit 501c3 educational and research organization composed of scientists educators and community members founded in 1982. It serves as an online science resource center to assist school districts teachers and administrators around the world. The major goal is to develop problem solving capacity through science for the world's children. We provide a free online reference science curriculum for elementary grades. We also manage with field trips and classes the Children's Natural History Museum fossils of local area Tule Ponds at Tyson Lagoon environmental education Fremont Earthquake Exhibit California Nursery Historical Park and Masonic Home Reforestation and Composting Project.

Math Science Nucleus is a non-profit 501c3 educational and research organization composed of scientists educators and community members founded in 1982. It serves as an online science resource center to assist school districts teachers and administrators around the world. The major goal is to develop problem solving capacity through science for the worlds children. We provide a free online reference science curriculum for elementary grades. We also manage with field trips and classes the Childrens Natural History Museum fossils of local area Tule Ponds at Tyson Lagoon environmental education Fremont Earthquake Exhibit California Nursery Historical Park and Masonic Home Reforestation Project

Balance Sheet Detail
LineBeginningEndChange
Assets
Savings and Temporary Cash Investments$799,000$1,704,522▲ $905,522
Pledges and Grants Receivable$1,893,154$601,282▼ $1,291,872
Cash and Non-Interest-Bearing Accounts$100,000$79,192▼ $20,808
Accounts Receivable$2,760$76,724▲ $73,964
Inventories for Sale or Use$10,000$10,000→ $0
Other Notes and Loans Receivable, Net$0$0→ $0
Receivable From Disqualified Prsn$0$0→ $0
Receivables From Officers Etc$0$0→ $0
Investments Other Securities$0$0→ $0
Investments Program Related$0$0→ $0
Investments in Publicly Traded Securities$0$0→ $0
Land, Buildings, and Equipment, Net$0$0→ $0
Intangible Assets$0$0→ $0
Loans From Officers Directors$0$0→ $0
Prepaid Expenses and Deferred Charges$0$0→ $0
Total Assets$3,097,914$2,764,720▼ $333,194
Other Assets Total$293,000$293,000→ $0
Liabilities
Accounts Payable and Accrued Expenses$0$0→ $0
Grants Payable$0$0→ $0
Mortgage Notes Payable Secured by Investment Property$0$0→ $0
Unsecured Notes Loans Payable$0$0→ $0
Other Liabilities$0$0→ $0
Deferred Revenue$0$0→ $0
Escrow Account Liability$0$0→ $0
Tax Exempt Bond Liabilities$0$0→ $0
Total Liabilities$0$0→ $0
Net Assets / Fund Balance
Net Assets Without Donor Restrictions$1,204,760$2,163,438▲ $958,678
Net Assets With Donor Restrictions$1,893,154$601,282▼ $1,291,872
Total Net Assets Fund Balance$3,097,914$2,764,720▼ $333,194
Total Liabilities and Net Assets / Fund Balance$3,097,914$2,764,720▼ $333,194

Asset Categories

AssetBook ValueDepreciationBasis
Other Assets Org$0--
Compensation and Service Providers
Top Officer PayScore unavailable

Employees

NameTitleFull / Part TimeBaseTotal
Art WilliamsRestoration SpecialistFT$83,200$83,200
Hagos Tewolde NegusseAnimator Web DesignFT$83,200$83,200
Althea WeberCollection ManagerFT$56,160$56,160
Susana EsquedaEnvironmental Scientist - educatorPT$26,641$26,641
Gaetano PalazzoAssociate PaleontologistPT$25,623$25,623
Selamawit Tesfaldetassociate museum shopPT$22,790$22,790
Kbrom Nugserestoration aidePT$22,720$22,720
Monica EsquedaEnvironmental Scientist educatorPT$11,610$11,610

Board Members and Trustees

NameTitle
Joyce R BluefordBoard President
Debbie DavidsonVice President Board
David StronkBoard Member
Grechen RoedingBoard Member
Karen AndersonBoard Member
Ken MillerBoard Member
Pat GordonBoard Member
Revenue and Support

Revenue Composition

Contributions and Grants
$1,389,525
Program Service Revenue
$338,465
Investment Income
$28,810
Other Revenue
$0
All Other Contributions
$8,000
Change in Net Assets
$-333,194
Expenses and Functional Allocation

Major Expense Lines

Line ItemAmount
Other Expenses$1,703,752
Salaries, Compensation, and Employee Benefits$386,242
Grants and Similar Amounts Paid$0
Professional Fundraising Fees$0
Total Fundraising Expense$0

Functional Expense Allocation

Line ItemProgramManagementFundraisingTotal
Current Officers, Directors, Trustees, and Key Employees$331,944$0$0$331,944
Other Expenses$46,070$0$0$46,070
Occupancy$36,000$0$0$36,000
All Other Expenses$35,824$0$0$35,824
Other Employee Benefits$33,441$0$0$33,441
Office Expenses$24,216$0$0$24,216
Payroll Taxes$20,857$0$0$20,857
Insurance$14,755$0$0$14,755
Fees for Services Other$9,123$0$0$9,123
Information Technology$8,121$0$0$8,121
Travel$7,152$0$0$7,152
Total Functional Expenses$2,089,994$0$0$2,089,994
Fundraising, Events, and Gaming
Fundraising activities
No
Gaming activities
No
Professional fundraiser used
No

Fundraising and Gaming Totals

Line ItemAmount
Fundraising Direct Expenses$0
Fundraising Gross Income$0
Gaming Direct Expenses$0
Gaming Gross Income$0
Professional Fundraising Fees$0
Political and Lobbying Activity
Political campaign activity
No
Lobbying activity
No
Subject to proxy tax
No
Insider Transactions and Loans

Interested-Person Transactions

Interested PartyRelationshipDescriptionShared RevenueAmount
Joyce BluefordBoard Presidentrent for use of building 4074 eggers Drive Fremont CA 94536No$36,000

Loans and Receivables

Line ItemBeginningEndChange
Loans from Officers, Directors, Trustees, and Key Employees$0$0→ $0
Receivables from Disqualified Persons$0$0→ $0
Receivables from Officers, Directors, Trustees, and Key Employees$0$0→ $0
Governance and Compliance

Governance Checklist

Compiled or reviewed by an accountant
No
Backup withholding compliance
Yes
Business relationship with 35% controlled entity
No
Business relationship with family members
No
Business relationship with organization members
Yes
Material changes to governing documents
No
Compensation from other sources disclosed
No
CEO compensation reviewed
No
Other officer compensation reviewed
No
Conflict-of-interest policy
No
Audited financial statements prepared
No
Key decisions subject to board approval
No
Management duties delegated
No

Governance Explanations

Part VI, Section B, Line 1

“The President and Vice President introduces policy while members have control of project they are involved with. Everyone is consulted with major changes”

Part VI, Line 11B

“electronically or by oral communication”

Part VI, Line 19

“990s are available online in California but anyone can request any of our documents by request”

Filing and Contact Details

Filer

Filer Name
Math-science Nucleus
EIN
94-2862140
Phone
5107906284
Address
4074 EGGERS DR, FREMONT, CA 94536-6001

Signing Officer

Name
Hagos Neguse
Title
Chief Financial Officer
Phone
5107906284
Signed
2026-02-11

Organization Details

Principal Officer
Joyce Blueford
Formed
1982
Legal Domicile
CA
Voting Board Members
7
Independent Board Members
7
Employees
7
Volunteers
0
Raw XML AppendixShowing 400 of 749 raw XML fields

This appendix keeps the raw XML leaves available for debugging and edge-case review. The human report above is the primary experience.

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IRS990/Form990PartVIISectionAGrp/PersonNm4Karen Anderson
IRS990/Form990PartVIISectionAGrp/PersonNm5David Stronk
IRS990/Form990PartVIISectionAGrp/PersonNm6Pat Gordon
IRS990/Form990PartVIISectionAGrp/PersonNm7Grechen Roeding
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IRS990/Form990PartVIISectionAGrp/TitleTxt0Animator Web Design
IRS990/Form990PartVIISectionAGrp/TitleTxt1Collection Manager
IRS990/Form990PartVIISectionAGrp/TitleTxt2Board President
IRS990/Form990PartVIISectionAGrp/TitleTxt3Vice President Board
IRS990/Form990PartVIISectionAGrp/TitleTxt4Board Member
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IRS990/Form990PartVIISectionAGrp/TitleTxt6Board Member
IRS990/Form990PartVIISectionAGrp/TitleTxt7Board Member
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IRS990/Form990PartVIISectionAGrp/TitleTxt9Restoration Specialist
IRS990/Form990PartVIISectionAGrp/TitleTxt10Environmental Scientist educator
IRS990/Form990PartVIISectionAGrp/TitleTxt11Associate Paleontologist
IRS990/Form990PartVIISectionAGrp/TitleTxt12restoration aide
IRS990/Form990PartVIISectionAGrp/TitleTxt13associate museum shop
IRS990/Form990PartVIISectionAGrp/TitleTxt14Environmental Scientist - educator
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IRS990/MissionDesc0Math Science Nucleus is a non-profit 501c3 educational and research organization composed of scientists educators and community members founded in 1982. It serves as an online science resource center to assist school districts teachers and administrators around the world. The major goal is to develop problem solving capacity through science for the worlds children. We provide a free online reference science curriculum for elementary grades. We also manage with field trips and classes the Childrens Natural History Museum fossils of local area Tule Ponds at Tyson Lagoon environmental education Fremont Earthquake Exhibit California Nursery Historical Park and Masonic Home Reforestation Project.
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IRS990/OtherExpensesGrp/Desc0Garbage, PGE, water and cleaning
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IRS990/OtherExpensesGrp/Desc2Children's natural history museum renovation and exhibits
IRS990/OtherExpensesGrp/Desc3Curriculum, including virtual
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