Charity Search / MARINE BIOLOGICAL LABORATORY
Science & Technology (U500) IRS Verified DX Registered

MARINE BIOLOGICAL LABORATORY

EIN: 04-2104690 · WOODS HOLE, MA 02543 · United States · FY 2023 Data
2 out of 5
MARINE BIOLOGICAL LABORATORY logo
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Mission Statement

The Marine Biological Laboratory (MBL) is dedicated to scientific discovery and improving the human condition through research and education in biology, biomedicine, and environmental science. Founded in Woods Hole, Massachusetts, in 1888, the MBL is a private, nonprofit institution and an affiliate of the University of Chicago.

Financial Overview — FY 2023
$53.6M
Total Revenue
$54.0M
Total Expenses
$203.2M
Net Assets
444
Employees
Revenue Sources
Expense Breakdown
Program Expense Ratio 84.1%
Fundraising Efficiency 0.0%
Operating Reserve 45.12x
Liability-to-Asset 14.9%
Revenue Diversification 83.6%
Financial History
Year Revenue Expenses Net Assets Program % Staff
2023 $53.6M $54.0M $203.2M 84.1% 444
2022 $59.8M $49.0M N/A 385
2021 $44.9M $41.0M N/A 327
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Organization Details
EIN
04-2104690
State
MA
City
WOODS HOLE
ZIP
02543
NTEE Code
U500
Category
Science & Technology
Rating
30★
Last Updated
Oct 2025
IRS Ruling Year
1888
Foundation Code
15
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