N6339424F3004↗
Mantech Advanced Systems International, Inc. received this contract from Commanding Officer, Department of the Navy: $27.00M obligated so far for support- professional: engineering/technical. Its period of performance ended 2026-08-11; options could extend it to 2029-08-11.
Key facts · data as of Oct 25, 2026
- Recipient
- Mantech Advanced Systems International, Inc.
- Awarding agency
- Department of the Navy (Department of Defense)
- Contracting office
- Commanding Officer (N63394)
- Obligated to date
- $27.00M
- Potential value
- $62.56M
- Ends
- 2026-08-11
Source: USAspending.gov prime award records (obligations: money committed, not outlays), data as of Oct 25, 2026.
Cite this page: SpendQuery, Award N6339424F3004, data as of Oct 25, 2026, https://spendquery.com/award?id=CONT_AWD_N6339424F3004_9700_N0017819D8070_9700
Mantech Advanced Systems International, Inc.: all federal awards · Department of Defense: spending · Commanding Officer: what it buys · The follow-on: recompete brief
UNDERWAY REPLENISHMENT ENGINEERING DESIGN & SUPPORT SERVICES (UNREP) WHICH IS A METHOD OF TRANSFERRING EQUIPMENT, FUEL, FOOD, AND SUPPLIES FROM SHIP TO SHIP WHILE UNDERWAY.
Up for re-bid: ends 2026-08-11. Recompete brief → · LITTORAL COMBAT SHIP (LCS) IN-SERVICE ENGINEERING & LIFE CYCLE SUPPORT ↗
What it is
- Product or service
- Support- Professional: Engineering/Technical (PSC R425)
- Industry
- Engineering Services (NAICS 541330)
- Contracting office
- Commanding Officer (N63394)
- Competition
- Full and open competition · 3 offers received
- Pricing
- Cost plus fixed fee
- How it was bought
- Multiple-award IDIQ · under SeaPort-NxG (N0017819D8070)
- Solicitation
- N6339423R3003
- Where the work is
- Ventura, CA · district CA-26
Obligations by fiscal year
SpendQuery holds FY2023 on; earlier years are on USAspending.gov.
Subcontractors: where the money went next
9 subawards totaling $12.97M (48.0% of what was obligated), as Mantech Advanced Systems International, Inc. reported them. Primes report subawards of $30,000 or more; smaller ones and unreported ones aren't here.
| Subcontractor | Amount | Subawards | Where | First | Last |
|---|---|---|---|---|---|
| Rockwell Automation, Inc. | $6.70M | 6 | OH | 2024-12-12 | 2025-05-28 |
| D & K Engineering | $5.30M | 1 | CA | 2024-11-21 | 2024-11-21 |
| Thor Solutions LLC | $839.4K | 1 | VA | 2024-11-21 | 2024-11-21 |
| True Bear Engineering, LLC | $118.9K | 1 | MI | 2025-05-02 | 2025-05-02 |
The largest single subawards
| Date | To | Amount | For |
|---|---|---|---|
| 2024-11-21 | D & K Engineering | $5.30M | ENGINEERING SERVICES |
| 2024-12-12 | Rockwell Automation Inc | $3.32M | E-STREAM BUILD |
| 2025-04-02 | Rockwell Automation Inc | $1.05M | HARDWARE BUILD |
| 2025-05-28 | Rockwell Automation Inc | $1.03M | E-STREAM 2.0 |
| 2025-05-23 | Rockwell Automation Inc | $1.03M | E-STREAM 2.0 |
| 2024-11-21 | Thor Solutions LLC | $839.4K | MARINE ENGINEERING AND NAVAL ARCHITECTURE |
| 2025-03-10 | Rockwell Automation Inc | $243.3K | E-STREAM BUILD |
| 2025-05-02 | True Bear Engineering, LLC | $118.9K | ENGINEERING AND MANUFACTURING OF MACHINERY |
| 2025-01-02 | Rockwell Automation Inc | $35.3K | E-STREAM BUILD |
Every action
23 actions since 2024-08-12. Each is a modification or amendment with the money it added or took back.
| Date | Modification | Kind | Amount | What the agency wrote |
|---|---|---|---|---|
| 2026-07-01 | P00022 | Supplemental agreement (work within scope) | $659.2K | INCREMENTAL FUNDING |
| 2026-05-06 | P00021 | Funding only | $207.0K | INCREMENTAL FUNDING |
| 2026-03-19 | P00020 | Funding only | $1.37M | INCREMENTAL FUNDING |
| 2026-03-02 | P00019 | Administrative change | $0 | INCREMENTAL FUNDING |
| 2026-01-29 | P00018 | Funding only | $4.50M | INCREMENTAL FUNDING |
| 2025-11-20 | P00017 | Funding only | -$1.00M | UNDERWAY REPLENISHMENT ENGINEERING DESIGN & SUPPORT SERVICES (UNREP) |
| 2025-10-30 | P00016 | Funding only | $1.97M | UNDERWAY REPLENISHMENT ENGINEERING DESIGN & SUPPORT SERVICES (UNREP) |
| 2025-09-26 | P00015 | Funding only | $856.0K | UNDERWAY REPLENISHMENT ENGINEERING DESIGN & SUPPORT SERVICES (UNREP) |
| 2025-09-11 | P00014 | Funding only | $131.4K | UNDERWAY REPLENISHMENT ENGINEERING DESIGN & SUPPORT SERVICES (UNREP) |
| 2025-08-11 | P00013 | Funding only | $445.7K | UNDERWAY REPLENISHMENT ENGINEERING DESIGN & SUPPORT SERVICES (UNREP) |
| 2025-08-07 | P00012 | Funding only | $1.87M | UNDERWAY REPLENISHMENT ENGINEERING DESIGN & SUPPORT SERVICES (UNREP) |
| 2025-06-09 | P00011 | Funding only | $103.1K | UNDERWAY REPLENISHMENT ENGINEERING DESIGN & SUPPORT SERVICES (UNREP) |
| 2025-04-25 | P00010 | Funding only | -$137.0K | UNDERWAY REPLENISHMENT ENGINEERING DESIGN & SUPPORT SERVICES (UNREP) |
| 2025-04-18 | P00009 | Funding only | $3.36M | UNDERWAY REPLENISHMENT ENGINEERING DESIGN & SUPPORT SERVICES (UNREP) |
| 2025-04-08 | P00008 | Administrative change | $0 | UNDERWAY REPLENISHMENT ENGINEERING DESIGN & SUPPORT SERVICES (UNREP) |
| 2025-02-26 | P00007 | Funding only | $3.67M | UNDERWAY REPLENISHMENT ENGINEERING DESIGN & SUPPORT SERVICES (UNREP) |
| 2024-12-17 | P00006 | Funding only | $669.0K | UNDERWAY REPLENISHMENT ENGINEERING DESIGN & SUPPORT SERVICES (UNREP) |
| 2024-12-16 | P00005 | Administrative change | $0 | UNDERWAY REPLENISHMENT ENGINEERING DESIGN & SUPPORT SERVICES (UNREP) |
| 2024-12-11 | P00004 | Funding only | $1.14M | UNDERWAY REPLENISHMENT ENGINEERING DESIGN & SUPPORT SERVICES (UNREP) |
| 2024-10-28 | P00003 | Funding only | $5.74M | UNDERWAY REPLENISHMENT ENGINEERING DESIGN & SUPPORT SERVICES (UNREP) |
| 2024-09-27 | P00002 | Funding only | $1.18M | UNDERWAY REPLENISHMENT ENGINEERING DESIGN & SUPPORT SERVICES (UNREP) WHICH IS A METHOD OF TRANSFERRING EQUIPMENT, FUEL, FOOD, AND SUPPLIES FROM SHIP TO SHIP WHILE UNDERWAY. |
| 2024-09-16 | P00001 | Funding only | $251.8K | UNDERWAY REPLENISHMENT ENGINEERING DESIGN & SUPPORT SERVICES (UNREP) WHICH IS A METHOD OF TRANSFERRING EQUIPMENT, FUEL, FOOD, AND SUPPLIES FROM SHIP TO SHIP WHILE UNDERWAY. |
| 2024-08-12 | 0 | $10.0K | UNDERWAY REPLENISHMENT ENGINEERING DESIGN & SUPPORT SERVICES (UNREP) WHICH IS A METHOD OF TRANSFERRING EQUIPMENT, FUEL, FOOD, AND SUPPLIES FROM SHIP TO SHIP WHILE UNDERWAY. |
Source: USAspending.gov prime award transactions and FSRS subaward reports, as loaded by SpendQuery (data as of 2026-10-25). Amounts are obligations (money committed), not outlays. The official record on USAspending.gov ↗