H.I.G. Capital to Acquire MISTRAS Group for Approximately $866 Million

Mistras Group sale to affiliates of H.I.G. Capital

October 3, 2026

Industrial Services

Mistras Group, Inc. (MG) is involved in a proposed transaction to be sold to affiliates of H.I.G. Capital. The announcement states that Mistras shareholders are expected to receive $20.35 in cash per share, and frames the matter as an inquiry into whether the deal is fair.

H.I.G. Capital to Acquire Majority Stake in TERRAS Group

July 7, 2026

Industrial Services

H.I.G. Capital, through an affiliate, has entered into a definitive agreement to acquire a majority stake in TERRAS Group. TERRAS co-founders Dr. Dirk Sojka and Ralf Sojka will reinvest alongside H.I.G. as part of the transaction.

H.I.G. Capital Acquires Majority Stake in Protos S.p.A.

March 11, 2025

Engineering Services

H.I.G. Capital, through an affiliated vehicle, has acquired a majority stake in Protos S.p.A., a leading Italian technical advisory and engineering consultancy. The investment — made in partnership with Protos' management — aims to accelerate the company’s growth in Italy and internationally, leveraging its capabilities in inspections, certifications, engineering, environmental/ESG advisory and related technical services.

H.I.G. Capital Acquires STS Aviation Group from Greenbriar Equity Group

October 8, 2024

Aerospace & Defense

An affiliate of H.I.G. Capital has completed a strategic equity acquisition of STS Aviation Group from Greenbriar Equity Group. STS’s executive team will remain in place and as significant shareholders while H.I.G. positions the business for global expansion, capability growth, and potential add-on acquisitions in the aviation MRO and parts-distribution market.

H.I.G. Capital Affiliate to Acquire Terra Millennium Corporation

May 26, 2022

Industrial Services

H.I.G. Capital (via one of its affiliates) has signed a definitive agreement to acquire Terra Millennium Corporation, a national provider of outsourced industrial maintenance services. Terra Millennium’s executive team, led by CEO Bryan Young, will continue to lead the company and remain as significant shareholders, and the deal is expected to close in Q2 2022.

MISTRAS Group Acquires New Century Software

September 4, 2019

Energy

MISTRAS Group acquired New Century Software, a Fort Collins-based provider of pipeline integrity management software and services, to expand its pipeline asset integrity and data management capabilities. The acquisition integrates New Century's pipeline software with MISTRAS' Plant Condition Management Software and recent Onstream pipeline inspection capabilities to offer enhanced data-driven pipeline protection solutions to midstream energy customers.