01 / Contract Profile
N6600121C0004 Federal Contract Award
Agency code 1700
THE PURPOSE OF THIS MODIFICATION IS TO INCREMENTALLY FUND OPTION PERIOD 4 CLIN 4001. SUBCLIN 400102 WAS CREATED TO FUND $720,000.00 IN SUPPORT OF LABOR.
02 / Contract Size and Status
What is the recorded size and timing of this contract?
03 / Spending Trend
N6600121C0004 contract spending by fiscal year
Annual net obligations across the complete period available for this agency and PIID, from the first recorded fiscal year through the latest contract action.
Latest fiscal year obligations$846.6K
FY 2025Net obligationsComplete recorded range
| Fiscal year | Net obligations | Actions | Change |
|---|---|---|---|
| FY 2020 | $1.63M | 1 | — |
| FY 2021 | $0 | 3 | −100.0% |
| FY 2022 | $1.56M | 4 | — |
| FY 2023 | $1.56M | 2 | −0.4% |
| FY 2024 | $1.15M | 2 | −25.8% |
| FY 2025 | $846.6K | 3 | −26.6% |
04 / Federal Buyer
Which organization manages this contract?
| Department | Contracting agency | Contracting office |
|---|---|---|
| DEPT OF DEFENSE | DEPT OF THE NAVY | NIWC PACIFIC |
05 / Contractor
Who holds this federal contract?
TDI TECHNOLOGIES, INC
UEI KML7LB78R5F5 · CAGE 0H327
06 / NAICS Industries
Which industries classify this contract?
| Code | Description | Obligations | Actions | Share |
|---|---|---|---|---|
| 541330 | ENGINEERING SERVICES | $6.74M | 15 | 100.0% |
07 / Products and Services
What products or services were purchased?
| Code | Description | Obligations | Actions | Share |
|---|---|---|---|---|
| AC35 | NATIONAL DEFENSE R&D SVCS; DEFENSE-RELATED ACTIVITIES; R&D FACILITIES & MAJ EQUIP | $6.74M | 15 | 100.0% |
08 / Place of Performance
Where is the work recorded?
SAN DIEGO, SAN DIEGO, CALIFORNIA, UNITED STATES
ZIP 921525008
09 / Contract Actions
What modifications and obligations were recorded?
| Signed date | Modification | Obligation | Contracting office | NAICS | PSC |
|---|---|---|---|---|---|
| Sep 24, 2025 | P00014 | $720.0K | NIWC PACIFICOffice code N66001 | 541330 | AC35 |
| Apr 16, 2025 | P00013 | $0 | NIWC PACIFICOffice code N66001 | 541330 | AC35 |
| Mar 11, 2025 | P00012 | $126.6K | NIWC PACIFICOffice code N66001 | 541330 | AC35 |
| Dec 30, 2024 | P00011 | $1.04M | NIWC PACIFICOffice code N66001 | 541330 | AC35 |
| Dec 10, 2024 | P00010 | $110.0K | NIWC PACIFICOffice code N66001 | 541330 | AC35 |
| Dec 22, 2023 | P00009 | $1.27M | NIWC PACIFICOffice code N66001 | 541330 | AC35 |
| Oct 11, 2023 | P00008 | $285.0K | NIWC PACIFICOffice code N66001 | 541330 | AC35 |
| Dec 28, 2022 | P00007 | $990.0K | NIWC PACIFICOffice code N66001 | 541330 | AC35 |
| Oct 31, 2022 | P00006 | $300.0K | NIWC PACIFICOffice code N66001 | 541330 | AC35 |
| May 10, 2022 | P00005 | -$708.3K | NIWC PACIFICOffice code N66001 | 541330 | AC35 |
| Jan 3, 2022 | P00004 | $980.0K | NIWC PACIFICOffice code N66001 | 541330 | AC35 |
| Oct 21, 2021 | P00003 | $0 | NIWC PACIFICOffice code N66001 | 541330 | AC35 |
| Jul 1, 2021 | P00002 | $0 | NIWC PACIFICOffice code N66001 | 541330 | AC35 |
| Jan 14, 2021 | P00001 | $0 | NIWC PACIFICOffice code N66001 | 541330 | AC35 |
| Dec 30, 2020 | Base action | $1.63M | NIWC PACIFICOffice code N66001 | 541330 | AC35 |
10 / Reading the Contract
How should this award record be interpreted?
Read the PIID as a transaction history, not as a single purchase price. Net obligations combine the base action with later increases, reductions, corrections, and deobligations recorded under the same contract.
Verify the buyer
Agency and office identify who manages the procurement relationship.
Follow modifications
Each action can change funding, scope, dates, or administrative terms.
Compare the market
Use NAICS, PSC, and the contractor profile to identify related buyers and competitors.