Sentinel Capital Partners, a private equity firm that invests in promising lower midmarket companies, completed the acquisition of a majority stake in TriMech, a provider of 3D engineering design and additive manufacturing software, services, and solutions, from Halifax Group, a capital market company. Financial terms were not disclosed. "TriMech is strategically positioned to capitalize on favorable secular trends underpinning the 3D CAD and 3D printing markets. With a talented and committed management team and a highly dedicated team of employees, we believe TriMech is well-positioned to continue its rapid growth, both organically and through acquisition. We are extremely excited about the opportunity to partner with the TriMech team," Jon Gurss, Sentinel Principal.