Civic Intelligence

Northgate High School Instrumental Boosters

EIN 68-0130808 • 501(c)3 • Walnut Creek, CA

Profile

Support for instrumental music programs

PO Box 30232Walnut Creek, CA 94598-9232

nimbconnect.org

Siviq Scores

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

Liabilities / Assets

81st percentile

0.15x

Higher debt load relative to assets than 81% of similar nonprofits.

501(c)3 • <$500k nonprofits • Source year 2025

Liabilities / Revenue

85th percentile

0.15x

Higher debt load relative to revenue than 85% of similar nonprofits.

501(c)3 • <$500k nonprofits • Source year 2025

Net Margin

75th percentile

21%

Higher net margin than 75% of similar nonprofits.

501(c)3 • <$500k nonprofits • Source year 2025

Top Officer Pay

83rd percentile

$5,000

Higher top officer pay than 83% of similar nonprofits.

Top officer pay equals 5.2% of source-year revenue.

501(c)3 • <$500k nonprofits • Source year 2025

Asset Growth

81st percentile

32%

Faster asset growth than 81% of similar nonprofits.

501(c)3 • <$500k nonprofits • Annualized from 2024 to 2025

Revenue Growth

78th percentile

31%

Faster revenue growth than 78% of similar nonprofits.

501(c)3 • <$500k nonprofits • Annualized from 2024 to 2025

Balance Sheet
Liabilities / Assets81st percentile

Assets

Up

$92,911

Up $22,607 (+32%) from 2024

Liabilities

Up

$14,039

Up $2,564 (+22%) from 2024

Net Assets

Up

$78,872

Up $20,043 (+34%) from 2024

Operations
Liabilities / Revenue85th percentileNet Margin75th percentile

Revenue

Up

$95,857

Up $22,439 (+31%) from 2024

Expenses

Down

$75,814

Down $12,807 (-14%) from 2024

Net Income

Up

$20,043

Up $35,246 (+232%) from 2024

Trend Graphs

Balance Sheet Trend

Asset Growth81st percentile

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

$100K$50K$0Assets 2010: $28,343Liabilities 2010: $0Net Assets 2010: $28,3432010Assets 2011: $38,784Liabilities 2011: $02011Assets 2012: $28,266Liabilities 2012: $0Net Assets 2012: $28,2662012Assets 2013: $42,672Liabilities 2013: $3,0452013Assets 2014: $54,702Liabilities 2014: $2702014Assets 2015: $55,606Liabilities 2015: $02015Assets 2016: $54,784Liabilities 2016: $02016Assets 2017: $56,761Liabilities 2017: $02017Assets 2018: $54,080Liabilities 2018: $63Net Assets 2018: $54,0172018Assets 2019: $56,852Liabilities 2019: $2,228Net Assets 2019: $54,6242019Assets 2020: $57,628Liabilities 2020: $1,1282020Assets 2021: $55,957Liabilities 2021: $262021Assets 2022: $69,290Liabilities 2022: $7,342Net Assets 2022: $61,9482022Assets 2023: $91,597Liabilities 2023: $17,565Net Assets 2023: $74,0322023Assets 2024: $70,304Liabilities 2024: $11,475Net Assets 2024: $58,8292024Assets 2025: $92,911Liabilities 2025: $14,039Net Assets 2025: $78,8722025

Highlighted filing

2025

Assets$92,911
Liabilities$14,039
Net Assets$78,872
Open 2025 Filing

Operations Trend

Revenue Growth78th percentile

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

$300K$200K$100K$0-$100KRevenue 2010: $60,351Expenses 2010: $55,376Net Income 2010: $4,9752010Revenue 2011: $60,405Expenses 2011: $49,964Net Income 2011: $10,4412011Revenue 2012: $61,101Expenses 2012: $71,619Net Income 2012: -$10,5182012Revenue 2013: $89,217Expenses 2013: $71,389Net Income 2013: $17,8282013Revenue 2014: $83,781Expenses 2014: $68,976Net Income 2014: $14,8052014Revenue 2015: $165,324Expenses 2015: $164,149Net Income 2015: $1,1752015Revenue 2016: $101,334Expenses 2016: $102,157Net Income 2016: -$8232016Revenue 2017: $184,979Expenses 2017: $183,002Net Income 2017: $1,9772017Revenue 2018: $115,000Expenses 2018: $117,744Net Income 2018: -$2,7442018Revenue 2019: $247,353Expenses 2019: $246,979Net Income 2019: $3742019Revenue 2020: $105,442Expenses 2020: $103,566Net Income 2020: $1,8762020Revenue 2021: $30,411Expenses 2021: $13,875Net Income 2021: $16,5362021Revenue 2022: $52,836Expenses 2022: $46,819Net Income 2022: $6,0172022Revenue 2023: $73,350Expenses 2023: $61,266Net Income 2023: $12,0842023Revenue 2024: $73,418Expenses 2024: $88,621Net Income 2024: -$15,2032024Revenue 2025: $95,857Expenses 2025: $75,814Net Income 2025: $20,0432025

Highlighted filing

2025

Revenue$95,857
Expenses$75,814
Net Income$20,043
Open 2025 Filing

Filings

Most recent year

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

Open filing
Assets
$92,911
Liabilities
$14,039
Net assets
$78,872
Revenue
$95,857
Expenses
$75,814
Net income
$20,043
Balance SheetOperations
YearAssetsLiabilitiesNet AssetsRevenueExpensesNet Income
2025Detailed filing. Detailed filing data is available for this year.$0.93$0.14$0.79$0.96$0.76$0.20
2024Detailed filing. Detailed filing data is available for this year.$0.70$0.11$0.59$0.73$0.89$0.15
2023Detailed filing. Detailed filing data is available for this year.$0.92$0.18$0.74$0.73$0.61$0.12
2022Detailed filing. Detailed filing data is available for this year.$0.69$0.07$0.62$0.53$0.47$0.06
2021Summary only. Only limited summary data is available for this year.$0.56$0.00$0.30$0.14$0.17
2020Summary only. Only limited summary data is available for this year.$0.58$0.01$1.05$1.04$0.02
2019Summary only. Only limited summary data is available for this year.$0.57$0.02$0.55$2.47$2.47$0.00
2018Detailed filing. Detailed filing data is available for this year.$0.54$0.00$0.54$1.15$1.18$0.03
2017Summary only. Only limited summary data is available for this year.$0.57$0.00$1.85$1.83$0.02
2016Summary only. Only limited summary data is available for this year.$0.55$0.00$1.01$1.02$0.01
2015Summary only. Only limited summary data is available for this year.$0.56$0.00$1.65$1.64$0.01
2014Summary only. Only limited summary data is available for this year.$0.55$0.00$0.84$0.69$0.15
2013Summary only. Only limited summary data is available for this year.$0.43$0.03$0.89$0.71$0.18
2012Facts available. Structured filing facts are available, but richer extracted sections are limited.$0.28$0.00$0.28$0.61$0.72$0.11
2011Summary only. Only limited summary data is available for this year.$0.39$0.00$0.60$0.50$0.10
2010Facts available. Structured filing facts are available, but richer extracted sections are limited.$0.28$0.00$0.28$0.60$0.55$0.05
Latest Filing Detail
Jump To
Filing Snapshot
Filing Period
Jul 1, 2024 to Jun 30, 2025
Signed
Aug 11, 2025
Return Version
2024v5.1
Gross Receipts
$95,857
Mission and Program Overview

Mission

Support for instrumental music programs.

Program Services

DescriptionGrantsExpenses
Northgate Instrumental Music Boosters NIMB benefits approximately 150 students in 6 musical groups: Concert Band Jazz Band I Jazz Band II Marching Band Orchestra and Symphonic Band. All contributions support concert transportation lodging entry fees instrumental purchases repairs and coaches.$0$0
Compensation and Service Providers
Top Officer Pay83rd percentile

Employees

NameTitleFull / Part TimeBaseOtherTotal
Roberto Garcia-LeivaMusic DirectorFT$5,000-$5,000
Paul AbrinkoPresidentPT$0--
Waldemar G KordylewskiTreasurerPT$0--
Misha McKinneySecretary-$0--
Filing and Contact Details

Filer

Filer Name
Northgate High School Instrumental Boosters
EIN
68-0130808
In Care Of
% Waldemar Grzegorz Kordylewski
Address
PO BOX 30232, Walnut Creek, CA 94598-9232

Signing Officer

Name
Waldemar Kordylewski
Title
Treasurer
Signed
2025-08-11
Supplemental Narrative

Additional Explanations

Part I, line 16

“| Other Expenses:, Amount:| Transportation Lodging & Meals - $19,153; Administrative Expenses - $7,915; Entry Fees - $15,568; Instrumental Purchases Repairs - $3,899; Insurance - $606, $47141|”

Part II, line 24

“| Explanation:, BOYAmount:, EOYAmount:| Other assets, $2255, $2415|”

Part II, line 26

“| Explanation:, BOYAmount:, EOYAmount:| Other assets, $11475, $14039|”

Raw XML Appendix155 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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IRS990ScheduleO/SupplementalInformationDetail/ExplanationTxt0| Other Expenses:, Amount:| Transportation Lodging & Meals - $19,153; Administrative Expenses - $7,915; Entry Fees - $15,568; Instrumental Purchases Repairs - $3,899; Insurance - $606, $47141|
IRS990ScheduleO/SupplementalInformationDetail/ExplanationTxt1| Explanation:, BOYAmount:, EOYAmount:| Other assets, $2255, $2415|
IRS990ScheduleO/SupplementalInformationDetail/ExplanationTxt2| Explanation:, BOYAmount:, EOYAmount:| Other assets, $11475, $14039|
IRS990ScheduleO/SupplementalInformationDetail/FormAndLineReferenceDesc0Part I, line 16
IRS990ScheduleO/SupplementalInformationDetail/FormAndLineReferenceDesc1Part II, line 24
IRS990ScheduleO/SupplementalInformationDetail/FormAndLineReferenceDesc2Part II, line 26
ReturnHeader/BuildTS02025-03-06 01:10:19Z
ReturnHeader/BusinessOfficerGrp/PersonNm0Waldemar Kordylewski
ReturnHeader/BusinessOfficerGrp/PersonTitleTxt0Treasurer
ReturnHeader/BusinessOfficerGrp/SignatureDt02025-08-11
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ReturnHeader/Filer/EIN0680130808
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ReturnHeader/Filer/InCareOfNm0% Waldemar Grzegorz Kordylewski
ReturnHeader/Filer/USAddress/AddressLine1Txt0PO BOX 30232
ReturnHeader/Filer/USAddress/CityNm0Walnut Creek
ReturnHeader/Filer/USAddress/StateAbbreviationCd0CA
ReturnHeader/Filer/USAddress/ZIPCd0945989232
ReturnHeader/ReturnTs02025-08-09T20:50:54-04:00
ReturnHeader/ReturnTypeCd0990EZ
ReturnHeader/TaxPeriodBeginDt02024-07-01
ReturnHeader/TaxPeriodEndDt02025-06-30
ReturnHeader/TaxYr02024

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