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Children's Oncology Services of Massachusetts Inc

EIN 04-2627411Brookline, MAHealthLatest 990 FY2025

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Listed with the IRS. Every screen came back clear.

A 501(c)(3) on Publication 78 and the IRS master file.

A paid feature, included from the $75 plan up. Sign in to download.Checked Oct 15, 2026, 12:55 PM ET
IRS listing
Listed
Revocation
None
IRS files
Agree
Sanctions
No match
IRS bulletin
No notice
California
Registered
Charity type
509(a)(1)

$2.0Mrevenue
FY2025 · +58% in 3 yrs
12staff
8 of 8years filed
’18’19’20’21’22’23’24’25
Revenue and spendingRevenueSpendingDeficit
$0$500k$1.0M$1.5M$2.0M’18’19’20’21’22’23’24’25
Against similar nonprofits FY2025
Operating margin40.4%
Months of reserve10.0mo
Revenue growth (annualized)+10.0%
Middle half of peersMedianChildren's Oncology Services of Massachusetts
Where the money goes FY2025 · $1.2M spent
Programs$786k66%Management and general$134k11%Fundraising$268k23%990 FY2025 · Part IX line 25