AwardTape / Contracts / HQ0859-26-D-E866
HQ0859-26-D-E866: Missile Defense Agency Award to Castelion Corporation
The contractor shall provide all necessary materials, labor, equipment and facilities incidental to the performance of this requirement in accordance with the terms of the order.. Contracting activity: MISSILE DEFENSE AGENCY (MDA).
$151B cumulative ceiling / COMPETITION NOT STATED IDIQ / HQ0859 MISSILE DEFENSE AGENCY (MDA)
1. Contract Summary & Primary Sources
| Contract Number (PIID) | HQ0859-26-D-E866 (unhyphenated: HQ085926DE866) |
|---|---|
| Prime Contractor (Awardee) |
Castelion Corporation
FY2024-FY2026 Federal Defense Portfolio: $233.7M obligated across 12 contracts
|
| Obligated Amount | Order-Dependent / TBD |
| Cumulative Face Value / Ceiling | USAspending Base IDV Ceiling: $151,000,000,000 |
| USAspending / FPDS Obligation History | Base Record Obligated: $0 (signed 2025-12-19, latest FPDS action 2025-12-19) · 1 Issued Delivery/Task Order(s) totaling $500 |
| Awarding Branch / Agency | Missile Defense Agency |
| Contracting Command & DoDAAC | HQ0859: MISSILE DEFENSE AGENCY (MDA) |
| Competition & Contract Structure | COMPETITION NOT STATED · Indefinite Delivery Contract (IDIQ) / Firm-Fixed-Price (FFP) |
| Product / Service & Industry Codes | PSC AC13 (National Defense R&D Services; Department Of Defense - Military; Experimental Development) · NAICS 541715 (Research And Development In The Physical, Engineering, And Life Sciences (Except Nanotechnology And Biotechnology)) |
| Work Locations & Funding | Determined at the contract or task-order level |
| Estimated Completion Date | See order schedule |
| Verified Primary Sources |
2. Verbatim Announcement & Scope Breakdown
USAspending / FPDS Transaction Description (Contract HQ085926DE866)
The contractor shall provide all necessary materials, labor, equipment and facilities incidental to the performance of this requirement in accordance with the terms of the order.
3. Subcontractor, Supply Chain & Capture Intelligence
For Tier-2 / Tier-3 Subcontractors & Suppliers
Subcontracting & Material Supply Window
- Prime Awardee: Castelion Corporation
- Delivery Runway: Active through multi-year ordering period
- Requirement Scope: The contractor shall provide all necessary materials, labor, equipment and facilities incidental to the performance of this requirement in accordance with the terms of the order.
- Federal Supply Class: PSC AC13 (National Defense R&D Services; Department Of Defense - Military; Experimental Development)
- BD Action: Reference Prime Contract HQ0859-26-D-E866 when contacting Castelion Corporation Supply Chain / Small Business Liaison Officer.
For Competing Primes & Capture Managers
Buying Command & Recompete Posture
- Buying Command: HQ0859 (MISSILE DEFENSE AGENCY (MDA))
- Acquisition Method: COMPETITION NOT STATED
- FOIA Jurisdiction: OSD/Joint Staff FOIA Requester Service Center (WHS ESD) (fallback; use FOIA.gov to route) (whs.mc-alex.esd.mbx.osd-js-foia-requester-service-center@mail.mil)
- Capture Action: Request Section B CLIN ceiling structure and Section C Statement of Work below to benchmark deliverable requirements.
Issued Task & Delivery Orders under HQ0859-26-D-E866 (1 shown, $500 obligated)
| Order PIID | Obligated | Awardee | Start / Latest Action | End Date | Order Scope |
|---|---|---|---|---|---|
| HQ085926FF347 | $500 | Castelion Corporation | 2025-12-19 / 2026-06-04 | 2035-12-28 | Scalable homeland innovative enterprise layered defense (shield) initial order. |
Tier-2 Subcontract Reporting Status (FAR 52.204-10): Prime contractors report first-tier subcontracts of $30,000 or more to the Federal Subaward Reporting System (FSRS) by the end of the month following subcontract award. Under DFARS 252.219-7003, prime awards exceeding $750,000 ($1.5M for construction) carry mandatory small-business subcontracting plans. Component and subsystem suppliers should contact Castelion Corporation Supply Chain / Small Business Liaison referencing contract HQ0859-26-D-E866.
Recent Contract Actions from Buying Office HQ0859 (MISSILE DEFENSE AGENCY (MDA))
| Date | Contract (PIID) | Prime Contractor | Amount | Completion | Scope Summary |
|---|---|---|---|---|---|
| 2026-09-30 | HQ0859-26-F-F988 | VTS JV. | $50.0M | Sep 29, 2031 | VTS JV. wins $50.0M contract for Modular Equipment Lease. 673rd Contracting Squadron $10.4M obligated now signed Sep 29, 2026 work through S... |
| 2026-06-04 | HQ0859-26-F-F573 | Stellar Solutions | $33.8M | Dec 8, 2027 | Stellar Solutions wins $33.8M order for research and development services to sustain critical Overhead Persistent Infrared capabilities. Spa... |
| 2026-01-15 | HQ0859-25-R-E001 | - | $151B | - | Missile Defense Agency awards $151B contract for The Missile Defense Agency (MDA) has made an additional 340 awards under the Scalable Homel... |
| 2025-12-18 | HQ0859-26-F-E152 | StraCon Services Group | $167.8M | - | StraCon Services Group wins $167.8M contract for engineering, logistics, and program management services in support of the development. Nava... |
| 2025-12-18 | HQ0859-25-R-E001 | - | $0 | - | Missile Defense Agency awards $151 contract for Following the initial tranche of 1,014 awards announced December 2, 2025. Missile Defense Ag... |
| 2025-12-02 | HQ0859-25-R-E001 | - | $151B | - | Missile Defense Agency wins $151B contract for Scalable Homeland Innovative Enterprise Layered Defense (SHIELD) multiple award. MDA. |
| 2025-09-30 | HQ0859-26-F-F675 | TACG | $24.2M | Mar 31, 2031 | TACG wins $24.2M order for F-15 Royal Saudi Air Force Link-16 technical support program. Air Force Life Cycle Management Center $3.0M obliga... |
Other Recent Department of War Awards to Castelion Corporation
| Date | Contract (PIID) | Branch | Amount | Completion | Scope Summary |
|---|---|---|---|---|---|
| 2026-09-17 | FA2385-23-C-B007 | Air Force | $16.4M | Jun 30, 2028 | Castelion gets $16.4M modification for low-cost highly manufacturable long-range strike weapon production. Air Force Research Laboratory $16... |
| 2026-09-14 | N68335-26-G-0006 | Navy | $43.6M | - | Castelion wins $43.6M order for production support for the Blackbeard Hypersonic Weapon program under a Small Business. Naval Air Warfare Ce... |
| 2026-08-25 | N68335-26-G-0006 | Navy | $90.0M | - | Castelion wins $90.0M order for a Small Business Innovation Research (SBIR) Phase III effort. Naval Air Warfare Center Aircraft Division $50... |
| 2026-06-11 | N68335-26-G-0006 | Navy | $23.4M | - | Castelion wins $23.4M order for production and delivery of fifty early operational capability pre-production prototypes. Naval Air Warfare C... |
| 2026-04-24 | N68335-26-F-1022 | Navy | $105.0M | Apr 1, 2028 | Castelion gets $105.00M modification for an option in support of Small Business Innovation Research Phase III effort, topic AF231-D026. Nava... |
| 2026-02-25 | N68335-26-F-1022 | Navy | $50.0M | Apr 1, 2028 | Castelion wins $50.00M order for full-scale prototypes, flight testing, and operational fielding to continue. Naval Air Warfare Center Aircr... |
4. Underlying Contract Files (Section B Pricing & Section C Statement of Work)
Document Status: Not yet on file. The government publishes the award notice and obligation record above, but does not post the underlying Section C Statement of Work (SOW), Section B line-item pricing schedule (CLINs), or Sole-Source Justification & Approval (J&A) online.
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Pre-Filled FOIA Request Letter for HQ0859-26-D-E866
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