- SI supports more than 330 clients across nuclear, gas power, pipeline, petrochemical, civil and industrial sectors
- UniSuper, one of Australia’s largest superannuation funds, is co-investing alongside Macquarie Asset Management in the transaction
- The deal is expected to close in fall 2026
Macquarie Asset Management, along with co-investors including UniSuper, has agreed to acquire a majority stake in SI Solutions from MidOcean Partners, for undisclosed terms. The investment follows a Macquarie strategy targeting high-quality, stable businesses that provide critical services, products and technologies to infrastructure end markets.
Headquartered in Huntersville, North Carolina, the company operates from 16 locations, five of which include testing laboratories, and currently supports more than 330 clients. SI’s engineers and technicians evaluate remaining useful life through stress, fatigue and materials analysis, diagnose the root cause of equipment and system performance issues, and apply that expertise across the full asset lifecycle, backed by non-destructive evaluation, laboratory testing, failure analysis and asset management software. The platform was built by integrating specialist firms with long-established technical track records.
“SI is a highly regarded industry leader with a strong track record of serving many of the largest utilities, who seek out SI for their most challenging structural integrity problems,” said Andrew Olinick, senior managing director at Macquarie Asset Management. “SI’s specialization in the power generation markets is a strong fit for our strategy.”
Macquarie Asset Management manages US$498 billion in assets and is part of Macquarie Group, founded in 1969. UniSuper invests approximately A$175 billion on behalf of about 688,000 members.
Editor’s note: This news brief was produced with the assistance of artificial intelligence.