Arlington Capital Partners
MediumFirm Overview
Arlington Capital Partners is a Washington, D.C.-based private equity firm that specializes in middle market leveraged buyouts and recapitalizations.
Arlington Capital Partners was founded in 1999 and is headquartered in Washington, D.C. The firm focuses on middle market companies, primarily conducting leveraged buyout and recapitalization investments across seven investment funds raised to date. Its inaugural fund closed in 2000 with $450 million, and the firm has significantly scaled its capital raising, culminating in a $6.0 billion seventh fund closed in 2025.
The firm concentrates its investment activity in three core sectors: aerospace and defense, government services and technology, and healthcare. Arlington has a history of high-profile activity in the defense technology space, including the formation of Keel and the notable sale of BlueHalo to AeroVironment. In 2025, the firm was recognized as one of the top 20 global mid-market buyout firms by the HEC Paris-Dow Jones performance ranking.
Leadership
Notable Investments
Historical and current deals referenced in public sources.
Portfolio Companies
| Company | Sector | Status | Website |
|---|---|---|---|
| Afton Scientific | Healthcare | Current | Visit ↗ |
| AV | Aerospace & Defense | Current | Visit ↗ |
| AV (AeroVironment) | Aerospace & Defense | Current | Visit ↗ |
| AVS Bio | Healthcare | Current | Visit ↗ |
| BlueHalo | Aerospace & Defense | Exited | Visit ↗ |
| CBSET | Healthcare | Current | Visit ↗ |
| Centauri | Government Services & Technology | Exited | — |
| Cordica Medical | Healthcare | Current | Visit ↗ |
| Endeavor Robotics | Aerospace & Defense | Exited | — |
| ENERCON | Business Services & Software | Current | Visit ↗ |
| Eptec Defence | Aerospace & Defense | Current | Visit ↗ |
| Eqlipse Technologies | Government Services & Technology | Exited | Visit ↗ |
| Everest | — | Current | Visit ↗ |
| Everest Clinical Research | Healthcare | Current | Visit ↗ |
| Everest Clinical Research Corporation | Healthcare | Current | Visit ↗ |
| Exostar | Business Services & Software | Current | Visit ↗ |
| FMI Industries | Aerospace & Defense | Current | — |
| Forged Solutions Group | Aerospace & Defense | Exited | Visit ↗ |
| Forged Solutions Group (FSG) | Aerospace & Defense | Exited | Visit ↗ |
| FSG | — | Exited | — |
| FSG (Forged Solutions Group) | Aerospace & Defense | Exited | Visit ↗ |
| Grand River Aseptic Manufacturing (GRAM) | Healthcare | Current | Visit ↗ |
| GRVTY | Government Services & Technology | Current | Visit ↗ |
| Highwater | Government Services & Technology | Current | Visit ↗ |
| IDS | Government Services & Technology | Current | Visit ↗ |
| IDS (Integrated Data Services) | Government Services & Technology | Current | Visit ↗ |
| Integrated Data Services (IDS) | Government Services & Technology | Current | Visit ↗ |
| J&J Worldwide | Government Services & Technology | Exited | Visit ↗ |
| J&J Worldwide Services | Government Services & Technology | Exited | Visit ↗ |
| Keel | Aerospace & Defense | Current | Visit ↗ |
| Kinetic Engine Systems | Aerospace & Defense | Current | Visit ↗ |
| Millstone Medical Outsourcing | Healthcare | Current | Visit ↗ |
| Molecular Products | Healthcare | Exited | — |
| Neumo | Government Services & Technology | Current | Visit ↗ |
| Octo Consulting Group | Government Services & Technology | Exited | Visit ↗ |
| Qarbon | — | Current | Visit ↗ |
| Qarbon Aerospace | Aerospace & Defense | Current | Visit ↗ |
| QarbonAerospace | Aerospace & Defense | Current | Visit ↗ |
| Radius Aerospace | Aerospace & Defense | Current | Visit ↗ |
| Riverpoint Medical | Healthcare | Current | Visit ↗ |
| SPA | Government Services & Technology | Current | Visit ↗ |
| SPA (Systems Planning & Analysis, Inc.) | Government Services & Technology | Current | Visit ↗ |
| SPA (Systems Planning & Analysis) | Government Services & Technology | Current | Visit ↗ |
| Stellant | Aerospace & Defense | Current | Visit ↗ |
| Stellant Systems | Aerospace & Defense | Current | Visit ↗ |
| Systems Planning & Analysis (SPA) | Government Services & Technology | Current | Visit ↗ |
| Systems Planning & Analysis, Inc. (SPA) | Government Services & Technology | Current | Visit ↗ |
| Tex Tech | Aerospace & Defense | Current | Visit ↗ |
| Tex Tech Industries | Aerospace & Defense | Current | Visit ↗ |
| TRP | Business Services & Software | Current | Visit ↗ |
| TRP Infrastructure Services | Government Services & Technology | Current | Visit ↗ |
| Tyto Athene | Government Services & Technology | Current | Visit ↗ |
| Verus Aerospace | Aerospace & Defense | Current | Visit ↗ |
Source: www.arlingtoncap.com/investments
Portfolio Web Readiness
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Sources
- Wikipedia Wikipedia/Wikidata · public reference
- Firm website Firm website · primary public source
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