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Platform·Industrials/Defense Services·August 17, 2026

Antin Infrastructure Partners acquires Vigor Marine Group

The transaction gives Antin Infrastructure Partners exposure to U.S. defense and maritime infrastructure spending and commercial ship repair and fabrication markets.

BuyerAntin Infrastructure Partners
TargetVigor Marine Group
SponsorAntin Infrastructure Partners
SellerLone Star Funds
TypePlatform
IndustryIndustrials
Sub-sectorDefense Services

Lone Star Funds has sold Vigor Marine Group, a shipyard and marine maintenance, repair, overhaul and fabrication provider, to Antin Infrastructure Partners. The Portland, Oregon-based company operates across five locations in the Pacific Northwest, Virginia and California, serves naval, defense and commercial maritime customers, and employs about 2,700 people.

An affiliate of Lone Star Fund XI owned the business prior to the transaction and during its investment period worked with management to broaden services and invest in facility improvements and technology upgrades.