PSC B518: Geophysical Studies
Service code
Code facts
- Spend category
- Professional Services Management Advisory Services
- Part of
-
-
B
- B5
-
B
- Contract awards
- 8 In the last 12 months
- Contract obligations
- $491,581 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 | $0 |
| FY2026 | $4,155,084 |
| FY2025 | $491,581 |
| FY2024 | $10,937,038 |
| FY2023 | $7,912,071 |
Top contractors by obligations
| Rank | Contractor | Obligated, FY2026–FY2027 | Share |
|---|---|---|---|
| 1 | Brackish Consulting LLC | $2,012,388 | |
| 2 | Kfs, LLC | $1,236,467 | |
| 3 | Collier Consulting, Inc. | $640,000 | |
| 4 | Degrove Surveyors, Inc. | $257,628 | |
| 5 | Green Country Testing, Incorporated | $112,160 | |
| 6 | Building & Earth Sciences, Inc. | $8,000 | |
| 7 | Ground Penetrating Radar Systems, LLC | $3,300 |
Top funding agencies by obligations
| Rank | Agency | Obligated, FY2026–FY2027 | Share |
|---|---|---|---|
| 1 | Air Force | $2,012,388 | |
| 2 | Department of Homeland Security | $1,236,467 | |
| 3 | Department of Agriculture | $640,000 | |
| 4 | Department of the Army | $376,838 | |
| 5 | Department of Justice | $3,300 |
Top NAICS codes by obligations
| Rank | NAICS code | Obligated, FY2026–FY2027 | Share |
|---|---|---|---|
| 1 | 541360 Geophysical Surveying and Mapping Services | $3,885,616 | |
| 2 | 541370 Surveying and Mapping (except Geophysical) Services | $257,628 | |
| 3 | 541380 Testing Laboratories and Services | $119,210 |
Contract obligations by state
| Rank | Place of performance | Obligated, last 12 months | Share |
|---|---|---|---|
| 1 | Virginia | $1,236,467 | |
| 2 | Mississippi | $640,000 | |
| 3 | New Mexico | $257,628 | |
| 4 | Oklahoma | $120,160 | |
| 5 | Georgia | $3,300 |
Shares are of everything obligated under PSC B518 in the last 12 months before deobligations, including work performed abroad or with no place of performance on record.
Contract opportunities
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Quick answers
What is PSC B518?
PSC B518 is Geophysical Studies, a service code in PSC B, Special Studies/
How much do federal agencies spend under PSC B518?
Federal contracts under PSC B518 obligated $491,581 in fiscal year 2025 and $23,495,775 in fiscal years 2023 through 2027.
Who are the largest contractors under PSC B518?
The contractors with the most obligated under PSC B518 in fiscal years 2026 and 2027 are Brackish Consulting LLC ($2,012,388); Kfs, LLC ($1,236,467); and Collier Consulting, Inc. ($640,000).
Which agencies buy the most under PSC B518?
The agencies that obligated the most under PSC B518 in fiscal years 2026 and 2027 are Air Force ($2,012,388), Department of Homeland Security ($1,236,467) and Department of Agriculture ($640,000).
Which NAICS codes are used with PSC B518?
The NAICS codes with the most obligated under PSC B518 in fiscal years 2026 and 2027 are 541360 Geophysical Surveying and Mapping Services, 541370 Surveying and Mapping (except Geophysical) Services and 541380 Testing Laboratories and Services.
Where is the work under PSC B518 performed?
By place of performance, the states with the most contract obligations under PSC B518 over the last 12 months are Virginia ($1,236,467), Mississippi ($640,000) and New Mexico ($257,628).
What is the latest contract opportunity under PSC B518?
The latest contract opportunity under PSC B518 is GPR Survey, solicitation from Forest Service, posted October 16, 2026.
On GovTribe
See everything under PSC B518
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