Arlington Capital Partners
MediumFirm Overview
Arlington Capital Partners is a Washington, DC-based private equity firm focusing on leveraged buyout and recapitalization investments in middle-market companies.
Arlington Capital Partners is a private equity firm based in Washington, DC, that specializes in middle-market investments. Since its inception in 1999, the firm has raised over $14 billion in committed capital across seven investment funds. The firm achieved significant growth in its fund sizes over time, culminating in a $6.0 billion seventh fund closed in 2025.
The firm focuses on three core sectors: aerospace and defense, government services and technology, and healthcare. Its investment activities typically involve leveraged buyouts and recapitalizations. Arlington has been recognized for its performance in the mid-market segment, appearing in global rankings such as the HEC Paris-Dow Jones Mid-Market Buyout Performance Ranking.
Notable recent activity includes the $800 million sale of J&J Worldwide Services to CBRE Group in 2024 and the sale of defense technology company BlueHalo to AeroVironment in 2025. The firm continues to be active in infrastructure and defense manufacturing, exemplified by its acquisition of Pond & Company and the formation of the defense manufacturing leader Keel.
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 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 (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 Aerospace | 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
Not yet assessed
The assessment covers whether AI crawlers and search engines can reach and parse the public site, page performance, transport and security hygiene, and discoverability. 45 portfolio companies have a website on record.
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Sources
- Wikipedia Wikipedia/Wikidata · public reference
- Firm website Firm website · primary public source
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