Windjammer buys HSG

Windjammer Capital Investors has acquired Hermetic Solutions Group, a provider of advanced hermetic packaging and components. No financial terms were disclosed.


Boston, MA, February 27, 2019 – Windjammer Capital Investors (“Windjammer”) is pleased to announce the acquisition of Hermetic Solutions Group, LLC (“HSG” or the “Company”) in partnership with management. Terms of the transaction were not disclosed.

Hermetic Solutions Group is a leading provider of advanced hermetic packaging and components designed to ensure critical electronic systems function reliably in demanding environments where it is essential to control for factors such as weight, space, vibration, temperature, moisture and off-gassing. HSG’s products support new build and system upgrades of high priority defense platforms, as well as niche applications in medical device, optical networking and industrial products. The Company’s portfolio of well-established microelectronic packaging brands includes PA&E, Hi-Rel Group, Sinclair and Litron, which together allow HSG to provide customers with the industry’s broadest range of products and services, including many patented and proprietary components.

“The breadth of HSG’s offering, its application engineering and materials science know-how, combined with its specialized manufacturing and process technologies, represent a truly differentiated value proposition, which is reflected in its long-tenured customer relationships,” said Craig Majernik, Managing Director at Windjammer. “We saw in HSG the opportunity to back a strong management team, support their ongoing initiatives to drive operational excellence and capacity expansion, and underwrite an acquisition strategy to further build out HSG’s platform of leading brands and product lines.”

“We are excited to be partnering with Windjammer,” said HSG President and CEO, Bill Hubbard. “Our customers consider us to be an absolutely critical supply chain partner, so having a private equity sponsor with the experience, resources and proven track record of helping to grow and improve niche manufacturing businesses like HSG, aligns 100% with management’s objective of wanting to serve current and future customers better, faster and in more value-added ways.”

HSG is the first investment in Windjammer’s $870 million Senior Equity Fund V, L.P. “The acquisition gets Fund V off to a strong start,” said Greg Bondick, Managing Principal at Windjammer, adding that “the Company is uniquely positioned in an attractive industry niche with strong secular growth drivers and is the logical platform for the continued consolidation of an otherwise fragmented market.”

More information on HSG and its products can be found at

About Windjammer Capital
Windjammer Capital is a national private equity investment firm, based in Newport Beach, CA and Waltham, MA that invests control equity in middle-market businesses and in partnership with management. Since its founding in 1990, Windjammer has managed over $3 billion in committed capital, completed over 50 platform acquisitions and over 100 strategic add-ons. The firm targets investments in companies that are leaders in attractive niche markets and share several of the following characteristics: significant and defensible market positions; differentiated products and services; strong management teams; scalable business models; identifiable growth opportunities; and consistent financial performance. For more information, please visit