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

84th percentile

0.15x

Higher debt load relative to revenue than 84% 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

87th percentile

$5,000

Higher top officer pay than 87% of similar nonprofits.

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

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

Asset Growth

56th percentile

0.7%

Faster asset growth than 56% of similar nonprofits.

501(c)3 • <$500k nonprofits • Annualized from 2023 to 2025

Revenue Growth

68th percentile

14%

Faster revenue growth than 68% of similar nonprofits.

501(c)3 • <$500k nonprofits • Annualized from 2023 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 / Revenue84th 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 Growth56th 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 Growth68th 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

Northgate Instrumental Music Boosters benefit more than 160 students in all seven of our music groups: Concert Band, Symphonic Band, Orchestra, Wind Ensemble, Jazz Band 1, Jazz Band II, and Marching Band/Drum Line/Auxilary. Contributions support musical instrument purchases and repair, festival entry fees, and transporation, coaches and clinicians, and sheet music purchase.

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 Pay87th 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
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ReturnHeader/BusinessOfficerGrp/PersonTitleTxt0Treasurer
ReturnHeader/BusinessOfficerGrp/SignatureDt02025-08-11
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ReturnHeader/Filer/EIN0680130808
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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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