# Mission Support And Test Services LLC (MSTS) Employee Retirement Plan

Mission Support And Test Services LLC (MSTS) Employee Retirement Plan is a Pension Fund based in Las Vegas, United States.

## Overview

- **Organization type:** Pension Fund
- **Headquarters:** Las Vegas, United States
- **Region:** North America
- **Address:** Las Vegas, Nevada, United States
- **Founded:** 2017
- **Assets under management:** Undisclosed
- **Website:** https://www.msts-llc.com
- **LinkedIn:** https://www.linkedin.com/company/mission-support-and-test-services-llc

## Regulatory record

- **Reports private funds:** No

## About

The Mission Support And Test Services LLC (MSTS) Employee Retirement Plan serves the pension obligations of the contractor workforce operating the Nevada National Security Site, a federally owned facility historically used for nuclear weapons testing and now for national security experiments. The plan covers employees of MSTS, a joint venture owned by Honeywell International, Jacobs Engineering Group, and Huntington Ingalls Industries via its HII Nuclear subsidiary. Shirley Hawkins administers the retirement and 401(k) plans. Asset-class exposure includes real estate and infrastructure, with a known direct real estate holding in Invesco Core Real Estate U.S.A., an open-end fund focused on industrial properties in North America. The plan's investment posture is a standard corporate defined-benefit model — liability-driven, with allocations to core institutional strategies. A separate 401(k) plan operates alongside the pension, offering a defined-contribution track for the same employee base. The plan's sponsors employ approximately 2,600 people in Nevada and at remote test locations. MSTS holds the management-and-operations contract for the Nevada National Security Site, a 1,355-square-mile federal reservation. The Department of Energy awarded the current contract in 2017, with a five-year base period valued at roughly $1.5 billion and five additional option years. Honeywell previously managed the site directly before the joint venture won the recompete. The plan's structural distinction is its embedded concentration: assets serve a single-location, single-employer population performing classified work with high clearance dependencies and low labor mobility. The joint venture partners — Honeywell, Jacobs, and HII — are all public defense-industrial firms, but the pension plan itself is a closed, non-union trust with no publicly disclosed investment committee, making its governance architecture opaque by institutional standards.

## Sectors

- Real Estate
- Infrastructure

## People

- Shirley Hawkins — Plan Administrator
- Maj Gen Garret Harencak — President of Mission Support and Test Services LLC (MSTS)

## Questions

### Who administers the MSTS Employee Retirement Plan?

Shirley Hawkins serves as the Plan Administrator for both the defined-benefit retirement plan and the companion 401(k) plan. Her title is associated with the plan's day-to-day oversight and regulatory filings.

### What is the relationship between MSTS and the Department of Energy?

Mission Support and Test Services LLC holds the management-and-operations contract for the Nevada National Security Site, a federally owned facility. The contract was awarded by the Department of Energy in 2017, with base and option phases extending through the mid-2020s.

### Who are the parent companies behind the MSTS joint venture?

MSTS is owned by three public defense-industrial companies: Honeywell International, Jacobs Engineering Group, and Huntington Ingalls Industries through its HII Nuclear subsidiary. They formed the joint venture specifically to bid on and execute the Nevada National Security Site contract.

### Is there a separate 401(k) plan alongside the pension?

Yes. A defined-contribution 401(k) plan operates in parallel, also administered by Shirley Hawkins. Together they form the two-track retirement offering for the MSTS workforce.

## Related profiles

- [Mission Prime](https://altss.com/profile/mission-prime)
- [Mississippi Healthcare Trust Fund](https://altss.com/profile/mississippi-healthcare-trust-fund)

---

Last updated: 2026-06-03T20:00:00.000Z

Canonical page: https://altss.com/profile/mission-support-and-test-services-llc-msts-employee-retirement-plan

Maintained by Altss — https://altss.com — methodology: https://altss.com/methodology