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Mon, Sep 14, 2026
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Platform·Business Services/Testing / Inspection / Certification·September 10, 2026

Macquarie-led consortium agrees to buy SI Solutions

MidOcean is selling the engineering and testing business, which employs 600 professionals across 16 U.S. locations.

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BuyerMacquarie Asset Management
TargetSI Solutions
SponsorMacquarie Asset Management
SellerMidOcean Partners
TypePlatform
IndustryBusiness Services
Sub-sectorTesting / Inspection / Certification

A Macquarie Asset Management-led consortium agreed to acquire SI Solutions from MidOcean Partners. The Huntersville, North Carolina-based company provides engineering, testing and software services for power generation and critical infrastructure.

It employs 600 professionals across 16 U.S. locations, including five testing laboratories, and supports more than 330 clients. During MidOcean's ownership, SI completed three add-on acquisitions and expanded its nuclear power and advanced reactor services.

The transaction is expected to close in 2026, subject to regulatory approvals and customary closing conditions.