Arlington Capital Partners, a Washington, DC-based private equity firm, completed the acquisition of Millstone Medical Outsourcing, a comprehensive solutions provider of quality-critical services to the medical device and pharmaceutical industries, from Schooner Capital, a Boston-based investment firm. Financial terms were not disclosed. "Over its 20+ year history, Millstone has established itself as the leading provider of outsourced quality-critical services for medical manufacturers. The Company is strategically positioned to benefit from several strong secular trends, including increased demand for outsourced post-manufacturing services and significant growth in robotic-assisted surgery. We are excited to partner with Millstone’s management team and continue to leverage the Company’s unique platform and capabilities to further accelerate growth both organically and through strategic acquisitions," Matt Altman, Arlington Managing Partner.