PSC B533: Water Quality Studies
Service code
Code facts
- Spend category
- Professional Services Management Advisory Services
- Part of
-
-
B
- B5
-
B
- Contract awards
- 96 In the last 12 months
- Contract obligations
- $10,375,116 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 | -$26,537 |
| FY2026 | $7,441,280 |
| FY2025 | $10,375,116 |
| FY2024 | $12,529,767 |
| FY2023 | $14,974,019 |
Top contractors by obligations
| Rank | Contractor | Obligated, FY2026–FY2027 | Share |
|---|---|---|---|
| 1 | Mabbett & Associates, Inc. | $913,546 | |
| 2 | Phigenics LLC | $603,719 | |
| 3 | Sanco Laboratories Inc. | $506,405 | |
| 4 | Water Management Services, Inc. | $306,540 | |
| 5 | I-2-I Solutions, Inc. | $276,196 | |
| 6 | Winergy LLC | $275,295 | |
| 7 | Matrix Sciences International Inc. | $232,866 | |
| 8 | Utah State University | $207,627 | |
| 9 | ABT Global LLC | $195,045 | |
| 10 | Eurofins Drinking Water And Wastewater Central, LLC | $192,747 |
See the full FY2025 ranking of PSC B533 contractors, by parent company.
Top funding agencies by obligations
| Rank | Agency | Obligated, FY2026–FY2027 | Share |
|---|---|---|---|
| 1 | Department of Veterans Affairs | $3,052,608 | |
| 2 | Department of the Interior | $2,142,669 | |
| 3 | Defense Health Agency | $698,115 | |
| 4 | Department of Agriculture | $373,281 | |
| 5 | Department of the Army | $310,927 | |
| 6 | Environmental Protection Agency | $290,580 | |
| 7 | Department of Homeland Security | $181,183 | |
| 8 | Department of Transportation | $150,988 | |
| 9 | Department of Justice | $111,148 | |
| 10 | Department of State | $72,989 |
Top NAICS codes by obligations
| Rank | NAICS code | Obligated, FY2026–FY2027 | Share |
|---|---|---|---|
| 1 | 541380 Testing Laboratories and Services | $3,695,101 | |
| 2 | 541620 Environmental Consulting Services | $1,744,844 | |
| 3 | 541990 All Other Professional, Scientific, and Technical Services | $627,325 | |
| 4 | 541690 Other Scientific and Technical Consulting Services | $492,623 | |
| 5 | 221320 Sewage Treatment Facilities | $415,212 | |
| 6 | 541611 Administrative Management and General Management Consulting Services | $195,045 | |
| 7 | 221310 Water Supply and Irrigation Systems | $160,736 | |
| 8 | 561210 Facilities Support Services | $98,600 | |
| 9 | 325998 All Other Miscellaneous Chemical Product and Preparation Manufacturing | $69,494 | |
| 10 | 334513 Instruments and Related Products Manufacturing for Measuring, Displaying, and Controlling Industrial Process Variables | $69,034 |
Contract obligations by state
| Rank | Place of performance | Obligated, last 12 months | Share |
|---|---|---|---|
| 1 | Massachusetts | $813,463 | |
| 2 | Maryland | $741,632 | |
| 3 | Puerto Rico | $611,109 | |
| 4 | New York | $552,762 | |
| 5 | Florida | $459,726 | |
| 6 | Georgia | $393,511 | |
| 7 | Oregon | $378,505 | |
| 8 | New Jersey | $353,930 | |
| 9 | Virginia | $246,718 | |
| 10 | Utah | $194,726 | |
| 11 | Alaska | $193,035 | |
| 12 | Indiana | $190,400 | |
| 13 | South Dakota | $177,237 | |
| 14 | Washington | $176,138 | |
| 15 | California | $163,341 | |
| 16 | New Mexico | $161,307 | |
| 17 | Nevada | $146,593 | |
| 18 | West Virginia | $131,381 | |
| 19 | South Carolina | $101,668 | |
| 20 | Arizona | $100,174 | |
| 21 | Colorado | $98,976 | |
| 22 | Connecticut | $86,532 | |
| 23 | Vermont | $73,777 | |
| 24 | U.S. Virgin Islands | $67,104 | |
| 25 | Michigan | $60,295 | |
| 26 | North Carolina | $59,588 | |
| 27 | Alabama | $39,970 | |
| 28 | Hawaii | $39,742 | |
| 29 | Minnesota | $39,000 | |
| 30 | Wisconsin | $34,296 | |
| 31 | Pennsylvania | $31,456 | |
| 32 | Idaho | $31,098 | |
| 33 | Maine | $30,668 | |
| 34 | Rhode Island | $30,456 | |
| 35 | Missouri | $27,242 | |
| 36 | Illinois | $27,150 | |
| 37 | Iowa | $26,086 | |
| 38 | Montana | $24,970 | |
| 39 | Louisiana | $23,850 | |
| 40 | Nebraska | $19,579 | |
| 41 | District of Columbia | $19,513 | |
| 42 | Arkansas | $15,065 | |
| 43 | Mississippi | $3,410 |
Show all 43
Shares are of everything obligated under PSC B533 in the last 12 months before deobligations, including work performed abroad or with no place of performance on record.
Contract opportunities
Show 40 more
Latest 50 of 656 listed here. See the rest on GovTribe.
Quick answers
What is PSC B533?
PSC B533 is Water Quality Studies, a service code in PSC B, Special Studies/
How much do federal agencies spend under PSC B533?
Federal contracts under PSC B533 obligated $10,375,116 in fiscal year 2025 and $45,293,645 in fiscal years 2023 through 2027.
Who are the largest contractors under PSC B533?
The contractors with the most obligated under PSC B533 in fiscal years 2026 and 2027 are Mabbett & Associates, Inc. ($913,546); Phigenics LLC ($603,719); and Sanco Laboratories Inc. ($506,405).
Which agencies buy the most under PSC B533?
The agencies that obligated the most under PSC B533 in fiscal years 2026 and 2027 are Department of Veterans Affairs ($3,052,608), Department of the Interior ($2,142,669) and Defense Health Agency ($698,115).
Which NAICS codes are used with PSC B533?
The NAICS codes with the most obligated under PSC B533 in fiscal years 2026 and 2027 are 541380 Testing Laboratories and Services; 541620 Environmental Consulting Services; and 541990 All Other Professional, Scientific, and Technical Services.
Where is the work under PSC B533 performed?
By place of performance, the states with the most contract obligations under PSC B533 over the last 12 months are Massachusetts ($813,463), Maryland ($741,632) and Puerto Rico ($611,109).
What is the latest contract opportunity under PSC B533?
The latest contract opportunity under PSC B533 is B533--VANIHCS SPS Water Testing (VA-27-00000760), solicitation from Veterans Integrated Service Network 10 (VHA), posted October 20, 2026.
On GovTribe
See everything under PSC B533
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