PSC H168: Quality Control Services: Chemicals and Chemical Products

Service code

Code facts

Spend category
Equipment Related Services Quality Control
Contract awards
4 In the last 12 months
Contract obligations
$1,214,040 In FY2025

PSC codes and definitions come from the GSA PSC Manual and contract spending from SAM.gov/FPDS.

Contract obligations by fiscal year

Fiscal year Obligated
FY2027 To date -$1,246
FY2026 $959,576
FY2025 $1,214,040
FY2024 $870,108
FY2023 $845,351

Top contractors by obligations

Rank Contractor Obligated, FY2026–FY2027 Share
1 Reworld Tulsa, LLC $264,859
2 Aviate Enterprises, Inc. $261,885
3 EWA Direction Inc. $163,908
4 Clarke Mosquito Control Products, Inc. $115,500
5 HGS Engineering Inc. $94,964
6 Christeyns North America, LLC $83,407
7 International Chemtex Corp $27,165
8 Binary Exchange Technologies LLC $14,682
9 Chemsystems Inc. $6,617

Top funding agencies by obligations

Rank Agency Obligated, FY2026–FY2027 Share
1 Department of Veterans Affairs $610,781
2 Department of Homeland Security $204,883
3 National Aeronautics and Space Administration $115,500
4 Department of Justice $27,165

Contract obligations by state

Rank Place of performance Obligated, last 12 months Share
1 Oklahoma $264,859
2 Texas $261,885
3 California $169,341
4 Illinois $115,500
5 Florida $83,407
6 New Jersey $34,988
7 Minnesota $21,732
8 Hawaii $6,617

Shares are of everything obligated under PSC H168 in the last 12 months before deobligations, including work performed abroad or with no place of performance on record.

Contract opportunities

Notice Posted Due
Laundry Chemical Supplies and Maintenance Pre-Solicitation · Veterans Integrated Service Network 8 (VHA)
Elevated Temperature Oxide Dispersion Strengthened Alloy Fatigue and Tensile Testing. Special Notice · Shared Services Center
Propylene Glycol for NWS ASOS/COOP Solicitation · National Oceanic and Atmospheric Administration
Treatment of Closed Loop Water System Solicitation · Indian Health Service · 75H71025Q00242
Treatment of Closed Loop Water System Pre-Solicitation · Indian Health Service · 75H71025Q00242
SOURCES SOUGHT: Treatment of Closed Loop Water System Pre-Solicitation · Indian Health Service
Water Chemical Treatment Pre-Solicitation · Veterans Integrated Service Network 16 (VHA)
U. S. CBP, San Diego Field Office Narcotics Destruction Solicitation · Customs and Border Protection · 70B03C25Q00000158
U. S. CBP, San Diego Field Office Narcotics Destruction Pre-Solicitation · Customs and Border Protection · 70B03C25Q00000158
U. S. CBP, Los Angeles Field Office Narcotics Destruction Solicitation · Customs and Border Protection
Propylene glycol Solicitation · National Oceanic and Atmospheric Administration
H168--Boiler & Chiller Chemical Water Treatment Supplies and Services | Base + 4 Award Notice · Veterans Integrated Service Network 17 (VHA) —
Amendment 0001 - Medical Gas Inspections Solicitation · Veterans Integrated Service Network 1 (VHA)
H168--Technical Questions | Boiler & Chiller Chemical Water Treatment Supplies and Services | Base + 4 Solicitation · Veterans Integrated Service Network 17 (VHA)
D-glucose (u-13C6, 99%), microbiological/pyrogen tested Solicitation · National Institute on Drug Abuse (NIH)
Annual Medical Gas Inspection Services - Amendment 0001 Solicitation · Veterans Integrated Service Network 1 (VHA)
Purchase U-13C glucose for human study Pre-Solicitation · Office of the Assistant Secretary for Preparedness and Response
Annual Medical Gas Inspection Services Special Notice · Veterans Integrated Service Network 1 (VHA)
H168--Chemical Water Treatment for Chill Water Systems Base plus Four (4) Option Years Award Notice · Veterans Integrated Service Network 21 (VHA) —
H168--Chemical Treatment for Chill Water Systems Base plus Four (4) Option Years Solicitation · Veterans Integrated Service Network 21 (VHA) · 36C26124Q0185
H168--Chemical Treatment for Chill Water Systems Base plus Four (4) Option Years Pre-Solicitation · Veterans Integrated Service Network 21 (VHA) · 36C26124Q0185
H168--Chemical Treatment for Chill Water Systems Base plus Four (4) Option Years Pre-Solicitation · Veterans Integrated Service Network 21 (VHA) · 36C26124Q0107
Test Tensile and Creep Specimens Special Notice · Shared Services Center
Closed Loop Chemical Treatment Pre-Solicitation · National Institute of Standards and Technology
Notice of Intent to Sole Source to Green and Sustainable Services Special Notice · Veterans Integrated Service Network 16 (VHA)
Narcotics Destruction Tucson AZ Solicitation · Customs and Border Protection
H168--Water Treatment Services (HVAC) | RFQ Posting due 05/01/2023 Solicitation · Veterans Integrated Service Network 21 (VHA)
FEMA - MWEOC - Water Chemical Treatment Services Pre-Solicitation · FEMA National Community Section
Cryotech liquid deicer Solicitation · Coast Guard
3D Trasar Solids Equipment Monitoring Solicitation · Naval Supply Systems Command (Navy)
H168--Chemdaq Steri Trac 2 Monitors Unrestricted/Open Market Sources Sought Notice Brand Name or Equal To Request for Information Pre-Solicitation · Veterans Integrated Service Network 20 (VHA)
Purchase of polystyrene Special Notice · Office of Naval Research (SECNAV)
Flow Cytometry Analysis Pre-Solicitation · NIH Clinical Center
Online database for Safety Data Sheets Pre-Solicitation · Indian Health Service
H168--annual testing and inspection of medical gas system Solicitation · Veterans Integrated Service Network 22 (VHA)
H168--annual inspection and testing of the medical gas system Pre-Solicitation · Veterans Integrated Service Network 22 (VHA)
H168--FY21: Laundry Chemical and Support Solicitation · Veterans Integrated Service Network 8 (VHA)
H168--inspection and testing of medical gas system Pre-Solicitation · Veterans Integrated Service Network 22 (VHA)
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Quick answers

What is PSC H168?

PSC H168 is Quality Control Services: Chemicals and Chemical Products, a service code in PSC H, Quality Control, Test, Inspection.

How much do federal agencies spend under PSC H168?

Federal contracts under PSC H168 obligated $1,214,040 in fiscal year 2025 and $3,887,828 in fiscal years 2023 through 2027.

Who are the largest contractors under PSC H168?

The contractors with the most obligated under PSC H168 in fiscal years 2026 and 2027 are Reworld Tulsa, LLC ($264,859); Aviate Enterprises, Inc. ($261,885); and EWA Direction Inc. ($163,908).

Which agencies buy the most under PSC H168?

The agencies that obligated the most under PSC H168 in fiscal years 2026 and 2027 are Department of Veterans Affairs ($610,781), Department of Homeland Security ($204,883) and National Aeronautics and Space Administration ($115,500).

Which NAICS codes are used with PSC H168?

The NAICS codes with the most obligated under PSC H168 in fiscal years 2026 and 2027 are 221310 Water Supply and Irrigation Systems, 562211 Hazardous Waste Treatment and Disposal and 325199 All Other Basic Organic Chemical Manufacturing.

Where is the work under PSC H168 performed?

By place of performance, the states with the most contract obligations under PSC H168 over the last 12 months are Oklahoma ($264,859), Texas ($261,885) and California ($169,341).

What is the latest contract opportunity under PSC H168?

The latest contract opportunity under PSC H168 is Laundry Chemical Supplies and Maintenance, pre-solicitation from Veterans Integrated Service Network 8 (VHA), posted October 7, 2025.

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