Hellmuth, Obata & Kassabaum
UEI: CQJLYUAF62J3
• CAGE: 3JYX6
Overview
Parent Awardee
Company Description
HOK is a global design, architecture, engineering and planning firm. Our people collaborate across a network of 26 offices on three continents.
Name
Hellmuth, Obata & Kassabaum
Website
Headquarters
Saint Louis, MO
United States
United States
Most Recent Award
Aug. 19, 2025
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Federal contract recipient
HELLMUTH, OBATA & KASSABAUM, INC.
(UEI CQJLYUAF62J3, CAGE 3JYX6)
is headquartered in Saint Louis MO.
Its primary registered NAICS is 541310 Architectural Services.
The corporation
was founded in September 1995 and
federally registered in
October 2003.
Federal Award Analysis
Hellmuth, Obata & Kassabaum 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
HELLMUTH, OBATA & KASSABAUM, INC.
UEI
CQJLYUAF62J3
CAGE Code
3JYX6
Primary NAICS
SBA Certifications
None
Self Certifications
None
Entity Structure
Corporate Entity (Not Tax Exempt)
Purpose of Registration
Federal Contracts and Assistance
Date Founded
Sept. 5, 1995
Initial Registration
Oct. 3, 2003
Last Registration
Dec. 18, 2025
Registration Activation
Dec. 18, 2025
Registration Expiration
Dec. 11, 2026
Fiscal Year End
December 31
Reported Entity Types
For Profit Organization
State of Incorporation
MO
Country of Incorporation
USA
Employees
>1500
Reported NAICS
Accepts Credit Cards
Yes
People
Vendor contacts at Hellmuth, Obata & Kassabaum
Contract Vehicles
Hellmuth, Obata & Kassabaum multi-award contract vehicles
IDV Awards
Hellmuth, Obata & Kassabaum indefinite delivery vehicle awards
Contract Awards
Hellmuth, Obata & Kassabaum prime contract awards
State and Local Awards
Hellmuth, Obata & Kassabaum state and local contract awards
Teaming Partners
Disclosed awardee sub and prime contract and grant relationships
Hellmuth, Obata & Kassabaum