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EIN 39-1563808

Illuminus Foundation

IRS 501(c) type
501(c)(3)
Num. employees
0
City
Watertown
State
Wisconsin
Year formed
1986
Most recent tax filings
2025-06-01
NTEE code, primary
Z99: Unknown
Description
The Marquardt Foundation promotes the health and well-being of individuals it serves through raising funds for various affiliated institutions, such as nursing homes, hospitals, and schools. Grounded in faith, the organization solicits and controls assets to support Marquardt Village and its affiliates for hospice, chapel, resident activities, and other related purposes. The foundation is located in Watertown, WI.
Related structure
Illuminus Foundation is a subordinate organization under Illuminus Retirement Communities.
Also known as...
Marquardt Foundation
Total revenues
$1,079,136
2025
Total expenses
$351,135
2025
Total assets
$14,912,916
2025
Num. employees
0
2025

Program areas at Illuminus Foundation

Marquardt Foundation, Inc solicits and controls assets for the benefit of Marquardt village, Inc and its affiliates. The Foundation provides funds for hospice, chapel, resident activities, and other related purposes.

Grants made by Illuminus Foundation

GranteeGrant descriptionAmount
CommonheartSupport for General Activites$135,769

Who funds Illuminus Foundation

Grants from foundations and other nonprofits
GrantmakerDescriptionAmount
Alliant Energy FoundationMatching Gift$1,000
AmazonSmile FoundationGeneral Support$52

Financials for Illuminus Foundation

RevenuesFYE 06/2025
Total grants, contributions, etc.$403,559
Program services$0
Investment income and dividends$301,910
Tax-exempt bond proceeds$0
Royalty revenue$0
Net rental income$0
Net gain from sale of non-inventory assets$431,313
Net income from fundraising events$-56,011
Net income from gaming activities$0
Net income from sales of inventory$0
Miscellaneous revenues$-1,635
Total revenues$1,079,136
Data update history
July 16, 2026
Posted financials
Added Form 990 for fiscal year 2025
June 22, 2026
Updated personnel
Identified 4 new personnel
June 20, 2026
Received grants
Identified 1 new grant, including a grant for $1,000 from Alliant Energy Foundation
April 7, 2026
Posted financials
Added Form 990 for fiscal year 2024
February 19, 2026
Updated personnel
Identified 1 new personnel
Nonprofit Types
Grantmaking organizationsChapter / child organizationsCharities
Issues
No issues found
Characteristics
Legally formed as corporationProvides grantsFundraising eventsState / local levelGala fundraisersTax deductible donationsNo full-time employeesAccepts online donations
General information
Address
1045 Hill St
Watertown, WI 53098
County
Dodge County, WI
Website URL
illuminus.us/communities/the-marquardt?referrer=marquardtvillage.org 
Phone
(920) 261-0400
IRS details
EIN
39-1563808
Fiscal year end
June
Taxreturn type
Form 990
Year formed
1986
Eligible to receive tax-deductible contributions (Pub 78)
Yes
Categorization
NTEE code, primary
Z99: Z99
NAICS code, primary
813211: Grantmaking Foundations
Parent/child status
Subordinate organization
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