Charity Search / FIRST BASE FOUNDATION
Recreation & Sports (N63) IRS Verified DX Registered 990 on File

FIRST BASE FOUNDATION

EIN: 37-1499235 · MILL VALLEY, CA 94941-3753 · United States · FY 2025 Data
3 out of 5 59 / 100 Based on 2+ years of filings
Financial strength (30%) 95/100
Reliability (20%) 55/100
Effectiveness (25%) 78/100
Impact (25%) No data yet
Financial data: FY 2025 · Scored 9/13/2026
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Financial Overview — FY 2025
$81K
Total Revenue
$80K
Total Expenses
$39K
Net Assets
0
Employees
Revenue Sources
Expense Breakdown
Program Expense Ratio 75.6%
Fundraising Efficiency N/A
Operating Reserve 5.96x
Liability-to-Asset 0.0%
Revenue Diversification 64.1%
Compared with Peers
FY 2025
Compared with 5,880 similar organizations (United States, Recreation & Sports, under $100K in expenses), FY 2025.
This organization Middle half of peers (P25–P75) Peer median
Ratio This org Peer median Position (P10 → P90)
Program expense ratio
Program expenses / total expenses · higher is better
75.6% 91.2%
P10P90
Below median
Admin expense ratio
Management and general / total expenses · lower is better
24.4% 2.9%
P10P90
Bottom quarter
Fundraising expense ratio
Fundraising expenses / total expenses · lower is better
0.0% 0.0%
P10P90
Top quarter
Operating reserve
Months of expenses covered by net assets · higher is better
6.0 mo 9.6 mo
P10P90
Below median
Liabilities to assets
Total liabilities / total assets · lower is better
0.0% 0.0%
P10P90
Top quarter
Revenue concentration
Share of revenue from the largest source · lower is better
64.1% 83.6%
P10P90
Above median
Surplus margin
Surplus as a share of revenue
1.7% 7.9%
P10P90
Financial History
Year Revenue Expenses Net Assets Program % Staff
2025 $81K $80K $39K 75.6% 0
2023 $171K $194K $17K 46.1% 0
2022 $207K $223K $39K 60.9% 0
2021 $243K $231K N/A 0
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Organization Details
EIN
37-1499235
State
CA
City
MILL VALLEY
ZIP
94941-3753
Classification
N63
Category
Recreation & Sports
Rating
3★
Coverage
A
Last Updated
Aug 2026
IRS Ruling Year
Foundation Code
16
Form 990
On File
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