Keystone Service Systems Inc

EIN 23-1915567501(c)(3)Public charityActive

4391 Sturbridge Dr, Harrisburg, PA · IRS data through FY2025

Total revenue
$201,690,817
FY2025 · +13% vs FY2024
Total expenses
$189,884,529
FY2025
Net assets
$76,536,097
FY2025
Employees
2,558
FY2025

Revenue, expenses and net assets

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Revenue Expenses Net assets

Tax yearRevenueExpensesNet assets
FY2025$201,690,817$189,884,529$76,536,097
FY2024$179,277,736$172,969,600$61,125,938
FY2023$174,472,584$167,527,068$54,701,300
FY2022$171,176,018$164,851,707$47,684,980
FY2021$160,483,105$154,488,094$41,486,810
FY2020$158,547,971$150,390,403$35,315,555
FY2019$148,770,158$144,237,972$27,135,363
FY2018$137,636,681$132,473,150$22,587,585
FY2017$126,458,679$125,427,294$17,381,467
FY2016$123,202,468$125,065,991$16,423,539
FY2015$122,534,999$121,947,839$17,893,870
FY2014$121,660,129$120,376,833$17,071,589
FY2013$120,566,100$120,506,422$15,788,293
FY2012$95,454,325$95,600,017$15,728,615

Form 990 filings

The returns filed by Keystone Service Systems Inc (EIN 23-1915567), including Form 990 PDFs and e-file data by year, are available in ProPublica's Nonprofit Explorer. The figures on this page come from IRS data files built from those returns.

Where the revenue came from

SourceAmount% of revenue
Contributions & grants$17,324,7639%
Program service revenue$183,061,60491%
Other revenue$1,304,4501%

Where the money was spent

CategoryAmount% of expenses
Program services$162,866,01386%
Management & general$26,856,64714%
Fundraising$161,869<1%

What the numbers show

Figures compared against other organizations of the same NTEE program area in the same state. See the methodology page for how these are calculated and the guide to reading nonprofit financials for their limits.

About this organization

KEYSTONE SERVICE SYSTEMS, INC. (KSS) PROVIDES RESIDENTIAL AND RELATED SUPPORT SERVICES FOR FAMILIES AND PEOPLE WHO EXPERIENCE INTELLECTUAL DISABILITY, MENTAL ILLNESS, OR OTHER BEHAVIORAL CHALLENGES THROUGHOUT CENTRAL PENNSYLVANIA AND THE STATE OF DELAWARE.

IRS status

Ruling year1975
Subsection501(c)(3)
ClassificationPublic charity
Program area (NTEE)P730 — Human Services (in PA)
DonationsListed in the IRS Publication 78 data as eligible to receive tax-deductible contributions (public charity).

Similar organizations

Source: Internal Revenue Service — Exempt Organizations Business Master File (downloaded November 4, 2026), Statistics of Income extracts, Form 990 e-file data, Publication 78 and the Automatic Revocation list. Figures are as reported by the organization; IRS processing may adjust them. This is not a charity rating and not tax advice. Confirm deductibility in IRS Tax Exempt Organization Search.

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