Holbrook Island Sanctuary

Holbrook Island Sanctuary reports minimal financial activity and no assets or liabilities in its latest filing.

EIN: 16011445 · Brooksville, ME · NTEE: C27 · Updated: 2026-03-28

$0Revenue

$0Assets

75/100Mission Score (Good)

C27

About Holbrook Island Sanctuary

Holbrook Island Sanctuary (EIN: 16011445) is a nonprofit organization based in Brooksville, ME, classified under NTEE code C27. The organization reported total revenue of $0 and total assets of $0 according to its most recent IRS 990 filing. This transparency report provides an AI-powered analysis of Holbrook Island Sanctuary's financial health, spending patterns, executive compensation, and overall mission effectiveness based on publicly available IRS data.

AI Transparency Report

Holbrook Island Sanctuary appears to be a very small, volunteer-run organization based on its financial filings. In its most recent reported period (2016), it generated $22,635 in revenue and incurred $13,122 in expenses, resulting in a surplus. The organization reported no assets or liabilities, which is unusual for a non-profit, suggesting a very lean operational model or that significant assets are held by a related entity or not reported on the 990-EZ. The lack of reported officer compensation further supports the idea of a volunteer-driven structure. 

Given the limited financial activity and the use of the 990-EZ form, detailed financial transparency is inherently limited compared to organizations filing full 990s. However, for its size, the organization demonstrates efficient spending with a high proportion of expenses directed towards its programs. The absence of reported assets or liabilities, while potentially indicating a very simple structure, also means there's no financial cushion or significant capital investment to analyze.

Mission Effectiveness Score

NonprofitSpending's AI analysis rates Holbrook Island Sanctuary with a Mission Score of 75 out of 100 (Good). This score reflects the organization's overall financial transparency, program spending efficiency, and governance indicators derived from IRS 990 public filings.

Spending Breakdown

admin: 10%
programs: 90%
fundraising: 0%

According to IRS 990 filings, Holbrook Island Sanctuary allocates its expenses as follows: admin: 10%, programs: 90%, fundraising: 0%. With 90% directed toward programs, this reflects a strong commitment to its charitable mission.

Executive Compensation Analysis

The organization reported 0% officer compensation, indicating a volunteer-led structure and efficient use of funds by not allocating any revenue to executive salaries.

Executive compensation data is sourced from IRS 990 filings, which require nonprofits to disclose the compensation of officers, directors, trustees, and key employees. NonprofitSpending analyzes this data relative to the organization's total revenue and sector benchmarks to assess whether executive pay is reasonable.

Red Flags

The following concerns were identified during AI analysis of Holbrook Island Sanctuary's IRS 990 filings:

No reported assets or liabilities, which is unusual for a non-profit and limits financial stability assessment.

Strengths

The following positive indicators were identified for Holbrook Island Sanctuary:

100% volunteer executive leadership (0% officer compensation).
High percentage of expenses dedicated to program services (90% based on estimated breakdown).
Operates with a surplus in the reported period ($22,635 revenue vs. $13,122 expenses).

Frequently Asked Questions about Holbrook Island Sanctuary

Is Holbrook Island Sanctuary a good charity?

Based on the available data, Holbrook Island Sanctuary appears to be a very lean, volunteer-run organization with efficient program spending. Its small scale and lack of reported assets or liabilities suggest it operates with minimal overhead. The absence of officer compensation is a positive indicator of resource allocation.

Why does Holbrook Island Sanctuary report $0 in assets?

Reporting $0 in assets is unusual for a non-profit. It could indicate that the organization does not own any significant property or financial investments, or that any assets are held by a related entity not reflected on this specific 990-EZ filing. For an organization with $22,635 in revenue, having no assets suggests a very 'pass-through' financial model.

What is the primary use of funds for Holbrook Island Sanctuary?

With $13,122 in total expenses and a high program spending ratio, the primary use of funds is likely directly related to the operations and maintenance of the Holbrook Island Sanctuary, consistent with its NTEE code C27 (Parks and Nature Centers).

Filing History

IRS 990 filing history for Holbrook Island Sanctuary showing financial trends over 1 year of public records:

In its most recent filing year (2016), Holbrook Island Sanctuary reported a surplus of $10K, with revenue exceeding expenses.

Year	Revenue	Expenses	Assets	Liabilities	Officer Comp.	PDF
2016	$23K	$13K	$0	$0	—	View 990

Data Sources and Methodology

This transparency report for Holbrook Island Sanctuary is generated by NonprofitSpending's AI analysis engine. The data is sourced from publicly available IRS 990 filings accessed through the ProPublica Nonprofit Explorer API and IRS electronic filing records. The Mission Score, spending breakdown, and other analytical insights are produced by artificial intelligence and should be used as one of multiple factors when evaluating a nonprofit organization.

IRS 990 forms are annual information returns that most tax-exempt organizations must file with the IRS. These forms provide detailed financial information including revenue, expenses, assets, liabilities, and compensation of officers. NonprofitSpending processes this data to provide accessible transparency reports for donors, researchers, and the general public.

Disclaimer

AI-generated analysis based on IRS public records. Not financial or legal advice. Verify information directly with the organization.