Unmanned maritime systems engineering services
Active Indefinite Delivery Contract Awarded Last action
- Contract number
- N6600126D0058
- Awardee
-
Mantech Advanced Systems International, Inc. UEI JY2BDT2K58Z6
- Awarding agency
-
Naval Information Warfare Systems Command
Department of the Navy, Department of Defense
- Task orders
- 1 $5,000 obligated
Award facts
- Opportunity
-
- Unmanned Maritime Systems Support (UMSS) Solicitation · N6600126R0018 · Posted Nov 5, 2025
- Combined order value
- $5,000 Current and potential, with all options
- Last date to order 6% complete
- IDV ceiling <1% used
- $698,785,468.00
- Maximum order
- $349,393,234.00
- Award type
- Multiple award
- Who can order
- Only the awarding agency
- Contracting staff
- NAICS code
- 541330 Engineering Services
- Set-aside
- No set-aside
- Competition
- Full and Open Competition · 21 offers Negotiated Proposal / Quote
- Pricing
- Cost Plus Fixed Fee
- Legislative mandates
-
- Service Contract Act FAR subpart 22.10
Award details come from SAM.gov/FPDS.
About this IDV
Naval Information Warfare Systems Command awarded an indefinite-delivery contract to Mantech Advanced Systems International, Inc. on May 11, 2026, for unmanned maritime systems engineering services with a ceiling of $698.785 million and ultimate completion on May 10, 2034. This is a multiple-award IDIQ with no set-aside.
Work encompasses specification, design, fabrication, development, integration, assembly, installation, testing, evaluation, fielding, operations, maintenance, training, logistics, and program management for unmanned maritime systems supporting U.S. Navy missions. The scope covers both current systems and future waterborne and underwater technologies across mission areas including explosive ordnance disposal, mine countermeasures, force protection, intelligence/surveillance/reconnaissance, mine warfare, anti-submarine warfare, and specialized undersea and surface applications. Performance is classified under NAICS 541330 (Engineering Services).
The contract originated from RFP No. N6600126R0018, posted November 5, 2025, with proposal due date of December 11, 2025. The procurement resulted in multiple IDIQ contracts using cost-plus-fixed-fee and cost (no fee) pricing arrangements with orders placed under FAR 16.505(a) procedures. Work involves varying security classifications from Unclassified through Top Secret/Sensitive Compartmented Information levels and represents a follow-on to existing contracts supporting Navy operations globally.
Task orders
| Task order | Ordering agency | Obligated | Awarded |
|---|---|---|---|
| Minimum guarantee N6600126D0058 | Naval Information Warfare Systems Command (Navy) | $5,000 |
Quick answers
Who was awarded contract N6600126D0058?
N6600126D0058 was awarded to Mantech Advanced Systems International, Inc. by Naval Information Warfare Systems Command (Department of the Navy) on May 11, 2026.
How much is contract N6600126D0058 worth?
Orders under N6600126D0058 have obligated $5,000. N6600126D0058's own ceiling is $698,785,468. A single order can be worth up to $349,393,234.
How many orders have been placed under contract N6600126D0058?
1 order has been placed under N6600126D0058, the latest on June 11, 2026.
Who can order from contract N6600126D0058?
N6600126D0058 is a multiple award indefinite delivery contract. Only the awarding agency can place orders on it.
Was contract N6600126D0058 competed?
The extent of competition for N6600126D0058 was full and open competition. The government received 21 offers.
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