HELLMUTH, OBATA & KASSABAUM, P.C.

WASHINGTON, DISTRICT OF COLUMBIA 200073614

$35.11M
Total Contract Value
154 awards
First Award
Apr 15, 2022
Last Award
Nov 20, 2025
Business Size
other than small
CAGE Code
0MY56

Top Industries (NAICS)

NAICS CodeObligationsAwards
541330$28.76M99
541430$1.00M4
541310$-145,357.3630

Contract Awards

50 awards found

75N99024F00006
Department of Health and Human Services
$1.00M
Sep 30, 2025

C103157 THIS MOD INCREASES THE SRLM PHASE 2 - TASK 2 SERVICES ALLOWANCE TO INCLUDE EQUIPMENT VENDOR VISITS AND ADD CX SUPORT. WITHOUT MODIFICATION THE GENERATORS AND SWITCHGEAR POWER CANNOT BE TRANSITIONED TO THE NEW SRLM WING OF BUILDING 10.

NAICS: 541330 - ENGINEERING SERVICESFY2025
75N99025F00002
Department of Health and Human Services
$244K
Sep 30, 2025

C200666 MOSELER SYSTEM MODIFICATION AND INTEGRATION FEASIBILITY STUDY

NAICS: 541330 - ENGINEERING SERVICESFY2025
75N99022F00004
Department of Health and Human Services
$42K
Sep 23, 2025

C100114, MOD.: ADDITIONAL SERVICES TO SUPPORT OF UPGRADES TO EXISTING FILTRATION SYSTEM TO IMPROVE WATER QUALITY FLOWING TO AQUATICS FACILITY WHICH AFFECTS HEALTH & WELL-BEING OF RESEARCH ANIMALS.

NAICS: 541330 - ENGINEERING SERVICESFY2025
75N99024F00004
Department of Health and Human Services
$609K
Sep 18, 2025

C107641 -PROVIDE ADDITIONAL CQM SERVICES TO ASSIST IN THE CONSTRUCTION OF THE POOLESVILLE A AND B WINGS.

NAICS: 541330 - ENGINEERING SERVICESFY2025
19AQMM25D0862
Department of State
$100K
Sep 15, 2025

SPC AE IDIQ BASE AWARD - HOK

NAICS: 541310 - ARCHITECTURAL SERVICESFY2025
75N99024F00003
Department of Health and Human Services
$41K
Sep 11, 2025

C108793 - REPLACE CHILLED WATER VERTICAL RISERS, BLDG. 10 - ACRF- FOR COMMISSIONING

NAICS: 541330 - ENGINEERING SERVICESFY2025
75N99025F00001
Department of Health and Human Services
$1.62M
Sep 11, 2025

TECHNICAL REVIEW AND SUPPORT FOR FY25 NIH GRANT BIOMEDICAL CONSTRUCTION PROJECTS. THIS CONTRACT ENSURES THAT CRITICAL NIH GRANT FUNDED FACILITIES ARE AT THE HIGHEST LEVELS OF SAFETY, EFFICIENCY, AND RELIABILITY.

NAICS: 541330 - ENGINEERING SERVICESFY2025
75N99022F00001
Department of Health and Human Services
$99K
Sep 8, 2025

THE AWARD IS ESSENTIAL TO EXTEND POST DESIGN SERVICES TO ALIGN WITH THE CONSTRUCTION CONTRACT. THE MODIFICATION INCORPORATES TIME AND COMPENSATION FOR THE EXTENSION OF 122 CALENDAR DAYS.

NAICS: 541330 - ENGINEERING SERVICESFY2025
75N99023F00001
Department of Health and Human Services
$663K
Sep 8, 2025

THE AWARD IS ESSENTIAL FOR POST DESIGN AND COMMISSIONING SERVICES. THIS AWARD INCORPORATES REQUEST FOR EQUITABLE ADJUSTMENT, ADDITIONAL PHASE 1 REQUIRED EFFORT, AND TO EXTEND THE PERIOD OF PERFORMANCE TO COINCIDE WITH THE CONSTRUCTION SCHEDULE.

NAICS: 541330 - ENGINEERING SERVICESFY2025
75N99021F00006
Department of Health and Human Services
$602K
Jul 16, 2025

THE REASON FOR THIS MODIFICATION IS TO INCLUDE ADDITIONAL DESIGN SERVICES. THE CONTRACT ACTION IS ESSENTIAL TO PROCUREMENT AND ALLOWED TO PROCEED AS CONSTRUCTION CHANGE ODER. IT WOULD NOT BE COMPLETE AND USABLE WITHOUT THIS MODIFICATION.

NAICS: 541330 - ENGINEERING SERVICESFY2025
95332424C0062
Millennium Challenge Corporation
$-161,318.48
Jun 24, 2025

INTERIOR ARCHITECT DESIGN

NAICS: 541310 - ARCHITECTURAL SERVICESFY2025
75N99018F00032
Department of Health and Human Services
$-49,856.13
Jun 13, 2025

WR-C106585 AE SERVICES FEASIBILITY, DEVELOPMENT OF BRIDGING DOCUMENTS. THE REASON FOR THIS MODIFICATION IS TO DE-OBLIGATE THE REMAINING FUNDING IN THE AMOUNT OF $49,856.13 AND CLOSE OUT THE TASK ORDER.

NAICS: 541310 - ARCHITECTURAL SERVICESFY2025
19AQMM18F2513
Department of State
$602K
Jun 6, 2025

PRIORITIZATION FOR THE HKG SIP PROJECT.

NAICS: 541330 - ENGINEERING SERVICESFY2025
75N99021F00003
Department of Health and Human Services
$-55,727.76
May 6, 2025

C105850 - PROJECT QUALITY MANAGEMENT SERVICES FOR BUILDING 13 GROUND FLOOR RENOVATIONS

NAICS: 541330 - ENGINEERING SERVICESFY2025
19AQMM18F2513
Department of State
$228K
Apr 23, 2025

THE MOD WAS TO RESTORE CONSTRUCTION PHASE SERVICES WITH TWO CHANGES A. AMENDS THE PERIOD OF PERFORMANCE TO 10 MONTHS FROM CONSTRUCTION NTP. B. ADDS A PROPOSED SUBMITTAL REVIEW REGISTER FOR HOK TO DELIVER.

NAICS: 541330 - ENGINEERING SERVICESFY2025
75N99022F00004
Department of Health and Human Services
$90K
Apr 22, 2025

C100114 SME SUPPORT SERVICES FOR BUILDING 6 AQUATICS FACILITY - UPGRADE FILTRATION SYSTEM CHANGE ORDER #4: PROVIDE CONTINUED ON-SITE TECHNICAL SERVICES THROUGH THE EXTENDED PERIOD OF PERFORMANCE UNTIL SEPTEMBER 30, 2025. COR: EARL JOHNSON

NAICS: 541330 - ENGINEERING SERVICESFY2025
75N99023F00002
Department of Health and Human Services
$-96,134.74
Apr 10, 2025

C107342 DESIGN RETAINING WALL METRO CENTER P00005 - DE-OBLIGATE POST DESIGN SERVICES CS: BRAD ARENSDORF CO: ZACH PRICE COR: DERRICK WHITAKER

NAICS: 541330 - ENGINEERING SERVICESFY2025
75N99021F00007
Department of Health and Human Services
$-102,644.8
Apr 10, 2025

EOI:: IMPLEMENTING THE PRESIDENTS DEPARTMENT OF GOVERNMENT EFFICIENCY COST EFFICIENCY INITIATIVE (MARCH 19, 2025)::

NAICS: 541330 - ENGINEERING SERVICESFY2025
SAQMMA10C0303
Department of State
$412K
Jan 23, 2025

FUNDING TO REVIEW SITE CONDITIONS.

NAICS: 541330 - ENGINEERING SERVICESFY2025
75N99022F00001
Department of Health and Human Services
$152K
Jan 23, 2025

COST MOD TO EXTEND POP NIH NLM 1ST FLOOR AND MEZZANINE RENOVATION: NIH B38 NLM DESIGN; PHASE 2/3 ARCHITECTURAL SERVICES & REDESIGN & CA EXTENSION THRU 12.31.2024

NAICS: 541330 - ENGINEERING SERVICESFY2025
75N99023F00001
Department of Health and Human Services
$63K
Dec 12, 2024

CA, CX SERVICES - ELECTRICAL SWITCHING STATION AND EMERGENCY GENERATORS (ESSEG)/REPLACE BLDG. 59/59A

NAICS: 541330 - ENGINEERING SERVICESFY2025
HHSN29200025
Department of Health and Human Services
$-43,179.85
Oct 11, 2024

THE PURPOSE OF THIS MODIFICATION IS TO REFLECT THE CHANGE ORDER 2. DEDUCTS FOR CONCEPTUAL DESIGN AND 35% PACKAGE TO DESIGN-BUILD SOLICITATION FOR TEMPORARY TRAILER FACILITY: I. 35% DESIGN DOCUMENTS PROVIDED AS A SOLICITATION PACKAGE FOR A DESIGN-BU

NAICS: 541310 - ARCHITECTURAL SERVICESFY2025
75N99024F00006
Department of Health and Human Services
$8.25M
Sep 27, 2024

SURGERY, RADIOLOGY, AND LABORATORY MEDICINE (SRLM) CONSTRUCTION QUALITY MANAGEMENT (CQM) SERVICES - CONSTRUCTION

NAICS: 541330 - ENGINEERING SERVICESFY2024
75N99021F00006
Department of Health and Human Services
$25K
Sep 23, 2024

C100883 NUCLEAR MEDICINE DEPARTMENT (NMD) RADIOPHARMACY/BIOLOGICS RADIOLABELING FACILITY AT CLINICAL CENTER CHANGE ORDER - FA REDESIGN COR: JEANNE KEEGAN PO: SEAN ROWE

NAICS: 541330 - ENGINEERING SERVICESFY2024
75N99024F00005
Department of Health and Human Services
$1.40M
Sep 13, 2024

FY24 GRANT REVIEWS PERFORMED BY DTR

NAICS: 541330 - ENGINEERING SERVICESFY2024
75N99021F00009
Department of Health and Human Services
$57K
Sep 13, 2024

C102515 NLM DATA CENTER/TUNNEL/ELECTRICAL RELIABILITY POST CONSTRUCTION ADMINISTRATIVE SERVICES AE DESIGN TO EXTEND POST-DESIGN PERIOD OF PERFORMANCE TO 12-06-2024

NAICS: 541330 - ENGINEERING SERVICESFY2024
75N99022F00001
Department of Health and Human Services
$171K
Sep 10, 2024

NIH NLM 1ST FLOOR AND MEZZANINE RENOVATION: NIH B38 NLM DESIGN; PHASE 2/3 ARCHITECTURAL SERVICES & REDESIGN & CA EXTENSION THRU 12.31.2024

NAICS: 541330 - ENGINEERING SERVICESFY2024
75N99021F00006
Department of Health and Human Services
$17K
Sep 4, 2024

C100883 NUCLEAR MEDICINE DEPARTMENT (NMD) RADIOPHARMACY/BIOLOGICS RADIOLABELING FACILITY AT CLINICAL CENTER CHANGE ORDER - STEEL REDESIGN COR: JEANNE KEEGAN PO: SEAN ROWE

NAICS: 541330 - ENGINEERING SERVICESFY2024
75N99022F00005
Department of Health and Human Services
$303K
Sep 3, 2024

SRLM: CQM SERVICES

NAICS: 541330 - ENGINEERING SERVICESFY2024
19AQMM18F2513
Department of State
$-194,688
Aug 6, 2024

PROJECT DEVELOPMENT TASKS: KICK OFF MEETING, DEDICATED PROJECT SPACE, SITE VISIT, SITE CONDITIONS SURVEY/ASSESSMENT AND BLAST STUDIES.

NAICS: 541330 - ENGINEERING SERVICESFY2024
75N99022F00005
Department of Health and Human Services
$9K
Jul 18, 2024

SRLM: CQM SERVICES

NAICS: 541330 - ENGINEERING SERVICESFY2024
75N99021F00006
Department of Health and Human Services
$16K
Jul 8, 2024

C100883 NUCLEAR MEDICINE DEPARTMENT (NMD) RADIOPHARMACY/BIOLOGICS RADIOLABELING FACILITY AT CLINICAL CENTER CHANGE ORDER - UPS DESIGN ADJUSTMENT COR: JEANNE KEEGAN PO: SEAN ROWE

NAICS: 541330 - ENGINEERING SERVICESFY2024
75N99024F00004
Department of Health and Human Services
$2.88M
Jun 20, 2024

REPLACES REQ 6841039 - C107641 OD POOLESVILLE CONVERT BUILDING 102 A & B WINGS FUND REQUEST FOR CQM SERVICES PO JOSE MOREL LOPEZ

NAICS: 541330 - ENGINEERING SERVICESFY2024
75N99023F00003
Department of Health and Human Services
$22K
Jun 13, 2024

C109988 - BLDG. 10 CRC EXTERIOR ENVELOPE LEAK RENOVATION STUDY. CS: CHRIS HSU CO: ZACH PRICE COR: PRAVEEN AGARWAL

NAICS: 541330 - ENGINEERING SERVICESFY2024
SAQMMA10C0303
Department of State
$-1,549,749.51
Jun 13, 2024

OBO/SPC - REILLY- PAUL - LE - DE-OB

NAICS: 541330 - ENGINEERING SERVICESFY2024
75N99022F00005
Department of Health and Human Services
$767K
May 28, 2024

C103157 - SRLM: CQM SERVICES

NAICS: 541330 - ENGINEERING SERVICESFY2024
75N99024F00003
Department of Health and Human Services
$313K
May 9, 2024

C108793 - REPLACE CHILLED WATER VERTICAL RISERS, BLDG. 10 - ACRF- FOR COMMISSIONING

NAICS: 541330 - ENGINEERING SERVICESFY2024
75N99023F00002
Department of Health and Human Services
$7K
Mar 21, 2024

C107342 DESIGN RETAINING WALL METRO CENTER CO#1 TO PROVIDE ELECTRICAL ENGINEERING DESIGN SERVICES FOR THE REPLACEMENT OF OLD STREET LIGHTING AND REMOVE FINAL SUBMISSION

NAICS: 541330 - ENGINEERING SERVICESFY2024
75N99022F00005
Department of Health and Human Services
$234K
Mar 5, 2024

C103157 - SRLM: CQM SERVICES

NAICS: 541330 - ENGINEERING SERVICESFY2024
75N99024F00001
Department of Health and Human Services
$103K
Feb 13, 2024

C116512 - PERFORM A NEPA ENVIRONMENTAL ASSESSMENT FOR THE PROPOSED DAM REPAIR PROJECT ON THE NIEHS CAMPUS, MARK RADTKE

NAICS: 541330 - ENGINEERING SERVICESFY2024
75N99019F00062
Department of Health and Human Services
$104K
Jan 24, 2024

AE C104037/AE C112352 DESCRIPTION - MOD 05 SUPPLEMENTAL WORK OUTLINED IN THE CO3 SOW. COR - HAITAO MA CO - DAVE SEID VENDOR POC - N. SCOTT JONES

NAICS: 541310 - ARCHITECTURAL SERVICESFY2024
75N99021F00009
Department of Health and Human Services
$64K
Dec 21, 2023

C102515 NLM DATA CENTER/TUNNEL/ELECTRICAL RELIABILITY POST CONSTRUCTION ADMINISTRATIVE SERVICES

NAICS: 541330 - ENGINEERING SERVICESFY2024
75N99022F00001
Department of Health and Human Services
$37K
Dec 21, 2023

NIH NLM 1ST FLOOR AND MEZZANINE RENOVATION

NAICS: 541330 - ENGINEERING SERVICESFY2024
75N99022F00005
Department of Health and Human Services
$112K
Nov 3, 2023

C103157 - SRLM: CQM SERVICES

NAICS: 541330 - ENGINEERING SERVICESFY2024
19AQMM18F2513
Department of State
$614K
Sep 30, 2023

PROJECT DEVELOPMENT TASKS: KICK OFF MEETING, DEDICATED PROJECT SPACE, SITE VISIT, SITE CONDITIONS SURVEY/ASSESSMENT AND BLAST STUDIES.

NAICS: 541330 - ENGINEERING SERVICESFY2023
75N99023F00005
Department of Health and Human Services
$192K
Sep 26, 2023

C104542 BUILDING 12A & 12B HVAC UPGRADE, DESIGN SERVICES ONLY..

NAICS: 541330 - ENGINEERING SERVICESFY2023
SAQMMA10C0303
Department of State
$-221,268.58
Sep 6, 2023

OBO/SPC - POWELL - PAUL - LE - DE-OB

NAICS: 541330 - ENGINEERING SERVICESFY2023
75N99023F00004
Department of Health and Human Services
$1.72M
Aug 31, 2023

C116034 - NIH GRANT BIOMEDICAL CONSTRUCTION PROJECTS REVIEW SUPPORT. CO: MARIO HENRIQUEZ COR: JORDAN BLACKBURN

NAICS: 541330 - ENGINEERING SERVICESFY2023
75N99023F00003
Department of Health and Human Services
$237K
Aug 30, 2023

C109988 - BLDG. 10 CRC EXTERIOR ENVELOPE LEAK RENOVATION STUDY. CO: MARIO HENRIQUEZ COR: PRAVEEN AGARWAL

NAICS: 541330 - ENGINEERING SERVICESFY2023
75N99021F00006
Department of Health and Human Services
$2.05M
Aug 30, 2023

C100883 NUCLEAR MEDICINE DEPARTMENT (NMD) RADIOPHARMACY/BIOLOGICS RADIOLABELING FACILITY AT CLINICAL CENTER - ADMINISTRATIVE ACTION FOR CAN CHANGE - CQV SERVICES - POST DESIGN SERVICES COR: SCOTT HELGESON PO: SEAN ROWE

NAICS: 541330 - ENGINEERING SERVICESFY2023

Business Details

UEI
CK9QSQY8MGN4
CAGE Code
0MY56
Address
3223 GRACE ST NW
WASHINGTON, DC 200073614
Congressional District
DC-98

Parent Company

HOK GROUP, INC.

Data Source

This profile is based on federal contract award data from USAspending.gov.

View on USAspending.gov