Civic Intelligence

Bonsen Foundation

EIN 82-4380106 • Cambridge, MA

Pub. 78 Eligible
100 Memorial Drive Apt 5-3bCambridge, MA 02142
Siviq Scores

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

Liabilities / Assets

32nd percentile

0.00x

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

$1M-$5M nonprofits • Source year 2024

Liabilities / Revenue

33rd percentile

0.00x

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

$1M-$5M nonprofits • Source year 2024

Net Margin

2nd percentile

-255%

Higher net margin than 2% of similar nonprofits.

$1M-$5M nonprofits • Source year 2024

Top Officer Pay

47th percentile

$0

Higher top officer pay than 47% of similar nonprofits.

Top officer pay equals 0.0% of source-year revenue.

$1M-$5M nonprofits • Source year 2024

Asset Growth

20th percentile

-5.8%

Faster asset growth than 20% of similar nonprofits.

$1M-$5M nonprofits • Annualized from 2023 to 2024

Revenue Growth

33rd percentile

-1.2%

Faster revenue growth than 33% of similar nonprofits.

$1M-$5M nonprofits • Annualized from 2023 to 2024

Balance Sheet
Liabilities / Assets32nd percentile

Assets

Down

$4,472,895

Down $273,201 (-5.8%) from 2023

Liabilities

Down

$0

Down $2,144 (-100%) from 2023

Net Assets

Down

$4,472,895

Down $271,057 (-5.7%) from 2023

Operations
Liabilities / Revenue33rd percentileNet Margin2nd percentile

Revenue

Down

$115,706

Down $1,446 (-1.2%) from 2023

Expenses

Up

$410,201

Up $142,577 (+53%) from 2023

Net Income

Down

-$294,495

Down $144,023 (-96%) from 2023

Trend Graphs

Balance Sheet Trend

Asset Growth20th percentile

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

$6.0M$4.0M$2.0M$0Assets 2019: $5,538,922Liabilities 2019: $0Net Assets 2019: $5,538,9222019Assets 2020: $5,426,416Liabilities 2020: $0Net Assets 2020: $5,426,4162020Assets 2021: $5,613,026Liabilities 2021: $3,412Net Assets 2021: $5,609,6142021Assets 2022: $5,020,374Liabilities 2022: $7,822Net Assets 2022: $5,012,5522022Assets 2023: $4,746,096Liabilities 2023: $2,144Net Assets 2023: $4,743,9522023Assets 2024: $4,472,895Liabilities 2024: $0Net Assets 2024: $4,472,8952024

Highlighted filing

2024

Assets$4,472,895
Liabilities$0
Net Assets$4,472,895
Open 2024 Filing

Operations Trend

Revenue Growth33rd percentile

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

$1.0M$500K$0-$500K-$1.0MRevenue 2019: $783,445Expenses 2019: $255,594Net Income 2019: $527,8512019Revenue 2020: $890,339Expenses 2020: $405,895Net Income 2020: $484,4442020Revenue 2021: $377,325Expenses 2021: $117,913Net Income 2021: $259,4122021Revenue 2022: $83,903Expenses 2022: $634,711Net Income 2022: -$550,8082022Revenue 2023: $117,152Expenses 2023: $267,624Net Income 2023: -$150,4722023Revenue 2024: $115,706Expenses 2024: $410,201Net Income 2024: -$294,4952024

Highlighted filing

2024

Revenue$115,706
Expenses$410,201
Net Income-$294,495
Open 2024 Filing

Filings

Most recent year

2024 • Form 990PFDetailed filing. Detailed filing data is available for this year.

Open filing
Assets
$4,472,895
Liabilities
$0
Net assets
$4,472,895
Revenue
$115,706
Expenses
$410,201
Net income
-$294,495
Balance SheetOperations
YearAssetsLiabilitiesNet AssetsRevenueExpensesNet Income
2024Detailed filing. Detailed filing data is available for this year.$4.47$0.00$4.47$0.12$0.41$0.29
2023Detailed filing. Detailed filing data is available for this year.$4.75$0.00$4.74$0.12$0.27$0.15
2022Detailed filing. Detailed filing data is available for this year.$5.02$0.01$5.01$0.08$0.63$0.55
2021Detailed filing. Detailed filing data is available for this year.$5.61$0.00$5.61$0.38$0.12$0.26
2020Detailed filing. Detailed filing data is available for this year.$5.43$0.00$5.43$0.89$0.41$0.48
2019Detailed filing. Detailed filing data is available for this year.$5.54$0.00$5.54$0.78$0.26$0.53
Latest Filing Detail
Jump To
Filing Snapshot
Filing Period
Jan 1, 2024 to Dec 31, 2024
Signed
Nov 12, 2025
Return Version
2024v5.2
Compensation and Service Providers
Top Officer Pay47th percentile

Employees

NameTitleFull / Part TimeBaseOtherTotal
JOOST P BONSENPresidentPT$0--
Filing and Contact Details

Filer

Filer Name
Bonsen Foundation
EIN
82-4380106
Phone
8573017283
Address
100 MEMORIAL DRIVE APT 5-3B, CAMBRIDGE, MA 02142

Signing Officer

Name
Joost Paul Bonsen
Title
President
Signed
2025-11-12
Discuss with paid preparer
Yes

Preparer

Firm
Weyer Crellin & Custer
Address
245 Fischer Ave A3, Costa Mesa, CA 92626
Preparer
Evan M Custer CPA
Phone
7144299283
Raw XML Appendix236 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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ReturnHeader/BuildTS02025-03-06 01:10:19Z
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ReturnHeader/PreparerFirmGrp/PreparerUSAddress/CityNm0Costa Mesa
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ReturnHeader/PreparerPersonGrp/PhoneNum07144299283
ReturnHeader/PreparerPersonGrp/PreparerPersonNm0EVAN M CUSTER CPA
ReturnHeader/ReturnTs02025-11-17T11:26:23-08:00
ReturnHeader/ReturnTypeCd0990PF
ReturnHeader/TaxPeriodBeginDt02024-01-01
ReturnHeader/TaxPeriodEndDt02024-12-31
ReturnHeader/TaxYr02024

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