# Mission Support Assets and Infrastructure End Items

**Agency:** Homeland Security  
**Account:** Procurement, Construction, and Improvements  
**Source document:** Office of the Secretary and Executive Management · p. 5  
**Vintage:** President's Budget PB2027  
**Canonical URL:** https://hitchintel.com/budget/homeland-security/mission-support-assets-and-infrastructure-end-items  

> **Trust:** parsed from the agency Congressional Justification. Approximate, **not summable**, verify at the cited page.

## Funding ($M)

| Fiscal year | Basis | Amount |
| --- | --- | --- |
| FY2027 | request | 11.7 |

## Homeland Security discretionary budget authority (OMB PBDB — authoritative)

FY2027 $91.40B, FY2026 $88.60B. This is the agency total, not a sum of the parsed lines.


## What this funds

N/A - Mission Support Assets and Infrastructure End Items IT No - MSAI End Items fund other equipment, systems, and procurements not included on the Department's Master Acquisition Oversight List. These items are used by DHS Headquarters' Lines of Business and have costs that exceed the Department's PC&I thresholds. The table below and descriptions that follow provide details of program and end items funded within this PPA: 1 In FY 2025 and FY 2026, funds were appropriated under the MGMT PC&I account. Beginning in FY 2027, MGMT funding is consolidated with the OSEM PC&I budget. The Data Services Branch (DSB) provides infrastructure and tools for advanced data analytics and artificial intelligence/machine learning (AI/ML), with $3.3M in funding for development and implementation support. This funding is split approximately in half to support DSB's two authorized to operate platforms: Business Intelligence as a Service (BIaaS) and the Neptune data analytics platform. This funding supports integration of DHS tools and enterprise technologies (e.g., Databricks) within the platform boundaries, platform modernization to adopt serverless tooling and frameworks, and continued targeted expansion efforts to mature the platforms and ensure they are secure, reliable, and aligned with organizational priorities. These tools and enterprise technologies will be OCIO-directed for all Components to use. Mission Support Assets and Infrastructure - PPA Mission Support and Infrastructure End Items HSEN is an initiative to consolidate IT infrastructure across DHS components, supporting missions such as Homeland protection, crime deterrence, and disaster response. This network aligns with the DHS OCIO's vision of 'One Infrastructure' by unifying various IT networks and services into enterprise-wide IT services, facilitating secure data exchange and authentication. The funding includes $4.4M for upgrading to IPv6 which will meet Office of Management and Budget (OMB) mandates and $4.0M for implementing SD-WAN, Cloud Migration, and Network Access Control Modernization to enhance security, routing efficiency, and reduce operational costs. Mission Support Assets and Infrastructure - PPA Financial Systems Modernization


**Where it sits:** Civilian / Non-Defense › Homeland Security › Office of the Secretary and Executive Management › Procurement, Construction, and Improvements › Mission Support Assets and Infrastructure


*HitchAI is an independent intelligence service, not affiliated with the U.S. government. Civilian line dollars are parsed from agency Congressional Justifications and are approximate.*