HELLMUTH, OBATA & KASSABAUM, P.C. (DC)
Registration and award facts
SAM.gov registration as of
- Net obligations since FY2008
- $153.66M
- $153,655,080under this UEI
- FY2026 obligations
- $10.78M†
- $10,776,478Provisional
- Awards and orders
- 136
- with positive net obligations10 IDV vehicles held
- Latest action
- Sep 29, 2026
- SAM.gov registration
- Active
- Registration expiration date Dec 8, 2026
Registration
- Entity structure
- Corporate Entity (Not Tax Exempt)
- Business start date
- Dec 28, 1972 (53 years)
- Location
- Washington, DC
- State of incorporation
- New York
† FY2026 obligations (provisional; DoD awards signed after Jul 29, 2026 are not yet public).
Contract actions that the Department of Defense both funds and awards are withheld at the source for 90 days, so DoD awards signed after Jul 29, 2026 are not yet public.
Source: SAM.gov entity registration and FPDS contract actions recorded under UEI CK9QSQY8MGN4. GovChime does not check exclusions.
Performance
Net obligations recorded under this UEI since FY2008. Top lists show the largest five by share of this vendor's net obligations; the shares do not sum to 100%.
Net obligations by fiscal year of action
- FY2026: $10,776,478 (provisional)
- FY2025: $6,057,090
- FY2024: $13,145,306
- FY2023: $4,870,307
- FY2022: $6,380,970
- FY2021: $7,266,873
- FY2020: $17,772,473
- FY2019: $19,511,781
Show all 19 yearsEarlier years (FY2008–FY2018)
- FY2018: $20,898,336
- FY2017: $18,087,939
- FY2016: $4,809,657
- FY2015: $1,753,051
- FY2014: $1,475,724
- FY2013: $2,872,823
- FY2012: $2,570,154
- FY2011: $9,859,301
- FY2010: $3,089,775
- FY2009: $2,443,339
- FY2008: $13,704
Total across 19 fiscal years: $153,655,080
Top awarding agencies
- Department of Health and Human Services$93,472,071, 60.8%
- Department of State$50,133,269, 32.6%
- Department of the Interior$4,065,210, 2.6%
- Smithsonian Institution$2,161,681, 1.4%
- Department of Justice$2,001,345, 1.3%
Top awarding sub-agencies
- National Institutes of Health$93,472,071, 60.8%
- Department of State$50,133,269, 32.6%
- National Park Service$4,065,210, 2.6%
- Smithsonian Institution$2,161,681, 1.4%
- Federal Bureau of Investigation$2,001,345, 1.3%
Top NAICS by obligations
- 541330Engineering services$91,424,663, 59.5%
- 541310Architectural services$55,209,415, 35.9%
- 541320Landscape architectural services$3,851,621, 2.5%
- 541430Graphic design services$1,000,000, 0.7%
Top product and service codes by obligations
- C219Architect and engineering- general: other$58,897,013, 38.3%
- C1JZArchitect and engineering- construction: miscellaneous buildings$47,664,005, 31.0%
- C119Other buildings$37,391,992, 24.3%
- C211A/e svcs. (incl landscaping interio$5,376,538, 3.5%
- Y1DBConstruction of laboratories and clinics$2,001,345, 1.3%
Capabilities
NAICS codes
- 541310Architectural Services(primary)
- 541320Landscape Architectural Services
- 541330E
- 541350Building Inspection Services
- 541410Interior Design Services
- 541430Graphic Design Services
Show all 9 NAICS codes3 more NAICS codes
SBA certifications
No certification in the SBA profile data.
Contracts
Latest awards and orders
- 75N99025F00002Delivery orderunder an indefinite delivery contract (IDC)Department of Health and Human ServicesNational Institutes of HealthLatest action
- 75N99026F00003Delivery orderunder an indefinite delivery contract (IDC)Department of Health and Human ServicesNational Institutes of HealthLatest action
- 75N99026F00008Delivery orderunder an indefinite delivery contract (IDC)Department of Health and Human ServicesNational Institutes of HealthLatest action
- 75N99026F00002Delivery orderunder an indefinite delivery contract (IDC)Department of Health and Human ServicesNational Institutes of HealthLatest action
- 75N99026F00007Delivery orderunder an indefinite delivery contract (IDC)Department of Health and Human ServicesNational Institutes of HealthLatest action
- 75N99026F00005Delivery orderunder an indefinite delivery contract (IDC)Department of Health and Human ServicesNational Institutes of HealthLatest action
- 19AQMM26F1143Delivery orderunder an indefinite delivery contract (IDC)Department of StateLatest action
- 75N99026F00006Delivery orderunder an indefinite delivery contract (IDC)Department of Health and Human ServicesNational Institutes of HealthLatest action
- 75N98026F00001Delivery orderunder an indefinite delivery contract (IDC)Department of Health and Human ServicesNational Institutes of HealthLatest action
- 75N99026F00001Delivery orderunder an indefinite delivery contract (IDC)Department of Health and Human ServicesNational Institutes of HealthLatest action
Contact Info
As of . Source: SAM.gov Points of Contact.
SAM.gov registration for HELLMUTH, OBATA & KASSABAUM, P.C. lists a physical address and a separate mailing address, along with 5 verified points of contact. Past Performance contacts are the recommended outreach channel for due-diligence references; Government Business contacts handle procurement-facing correspondence.
Source: SAM.gov entity registration. Contacts displaying numeric or placeholder names have been filtered (defense-in-depth).
Physical Address
3223 GRACE ST NW
WASHINGTON, DC, 20007
USA
Mailing Address
3223 GRACE STREET NW
WASHINGTON, DC, 20007
USA
Government Business Contact
RICH CHEN
10 S. BROADWAY
SUITE 200
ST. LOUIS, MO, 63102
USA
Electronic Business Contact
Sarah Keane
3223 Grace Street NW
Washington, DC, 20007
USA
Government Business Alternate Contact
SARAH KEANE
3223 GRACE STREET NW
WASHINGTON, DC, 20007
USA
Electronic Business Alternate Contact
RICH CHEN
10 S. BROADWAY
SUITE 200
ST. LOUIS, MO, 63102
USA
Past Performance Alternate Contact
0001 541330NNNN N
0000
0003
E&Y
Additional Details
As of . Source: SAM.gov Entity Registration.
HELLMUTH, OBATA & KASSABAUM, P.C. has no active federal suspension or debarment on record in SAM.gov. Current SAM.gov registration expires December 8, 2026.
Source: SAM.gov entity registration (FAR responses, registration status). Always verify active exclusions against the authoritative record on SAM.gov before contract award.
Compliance & Risk Assessment
Source: SAM.gov FAR responsesSuspension/Debarment Status
SAM.gov registration reports no active exclusion
Public Display
Entity information is publicly displayed
Disaster Relief Registry
Registered for disaster relief contracting — DISTRICT OF COLUMBIA~MASSACHUSETTS~NEW YORK
Bonding Information
No bonding information provided
EDI
Not declared in SAM.gov
Business Structure
Source: SAM.govRegistration Details
Source: SAM.govInitial Registration
Last Update
Registration Activation
Fiscal Year End
Country of Incorporation
Congressional District
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