STS Operating
UEI: RU42J22YFWW5
• CAGE: 4HLS6
• DBA: SUNSOURCE
Overview
Awardee Type
Parent
(46 children)
Name
STS Operating
Website
Headquarters
Addison, IL
United States
United States
Most Recent Award
Dec. 29, 2025
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Federal contract recipient
STS OPERATING, INC.
dba SUNSOURCE
(UEI RU42J22YFWW5, CAGE 4HLS6)
is headquartered in Addison IL.
Its primary registered NAICS is 423830 Industrial Machinery and Equipment Merchant Wholesalers.
The corporation
was founded in September 2001 and
federally registered in
April 2025.
Federal Award Analysis
STS Operating federal award history
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Contracts
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Subcontracts
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Grants
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Subgrants
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Total
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Federal Registration and Certifications
Legal Name
STS OPERATING, INC.
DBA
SUNSOURCE
UEI
RU42J22YFWW5
CAGE Code
4HLS6
SBA Certifications
None
Self Certifications
None
Entity Structure
Corporate Entity (Not Tax Exempt)
Purpose of Registration
Federal Contracts and Assistance
Date Founded
Sept. 1, 2001
Initial Registration
April 11, 2025
Last Registration
Feb. 2, 2026
Registration Activation
Feb. 2, 2026
Registration Expiration
Jan. 29, 2027
Fiscal Year End
December 31
Reported Entity Types
For Profit Organization
State of Incorporation
DE
Country of Incorporation
USA
Employees
>1500
Reported NAICS
Accepts Credit Cards
Yes
People
Vendor contacts at STS Operating
Contract Vehicles
STS Operating multi-award contract vehicles
IDV Awards
STS Operating indefinite delivery vehicle awards
Contract Awards
STS Operating prime contract awards
Subcontract Awards
STS Operating subcontract awards
State and Local Awards
STS Operating state and local contract awards
Approved Supplier
CAGE 4HLS6 Defense Logistics Agency approved NSNs
Teaming Partners
Disclosed awardee sub and prime contract and grant relationships
STS Operating