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Strawbery Banke Museum

Portsmouth, New Hampshire · EIN 02-0260158 · Arts, Culture & Humanities · tax-exempt since 1967

C

Charity Clarity grade C (score 63.8 of 100), based on the Form 990 for the year ended March 2025.

Graded against 19,395 arts, culture & humanities nonprofits with revenue $2M–$10M filing the same form. A = top 10%, B = next 20%, C = middle 40%, D = next 20%, F = bottom 10%.

What goes into the grade

MeasureThis charityScore (0–100)
ReservesMonths of spending covered by unrestricted net assets.64.9 months0
GovernanceBoard independence, key policies and audit, per the 990.100% of practices100
Margin stabilityHow steady the surplus or deficit is year to year.85
Revenue spreadHow much revenue rests on one type of income.50% from one source65
Filing recordOn-time, complete filings, year after year.100%100
Program spendingSelf-reported by the filer.85.6%not scored
Management costsShare of spending.1.7%not scored
Cost to raise $1Fundraising cost per dollar given.$0.15not scored

Scores compare this charity with its peer group; 100 is best. How Charity Clarity rates charities.

Year by year

201720182019202020212022202320242025grey: revenue · green: spending
Year endedFormRevenueSpendingSurplusNet assetsMonths of spendingStaffGrade
Mar 2025Form 990$5.99M$4.55M$1.44M$24.61M64.9108C
Mar 2024Form 990$5.07M$4.01M$1.06M$22.80M68.399C
Mar 2023Form 990$5.70M$3.85M$1.85M$20.53M63.9103C
Mar 2022Form 990$6.24M$2.99M$3.25M$19.46M78.284C
Mar 2021Form 990$5.89M$2.71M$3.18M$16.06M71.187D
Mar 2020Form 990$3.36M$3.42M−$63K$11.00M38.5118B
Mar 2019Form 990$3.28M$3.43M−$156K$11.70M40.9121B
Mar 2018Form 990$3.24M$3.19M$53K$11.86M44.6114B
Mar 2017Form 990$3.07M$3.20M−$134K$11.57M43.3106C

From the organisation’s own IRS filings. “Months of spending” is total net assets divided by a month of that year’s spending. A blank grade means that year was not rated.

Read the filings

Every figure here comes from the returns this charity filed with the IRS. These sites show the full returns and more about the organisation:

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