Macquarie Asset Management-Led Consortium to Acquire Majority Stake in SI Solutions

Macquarie Asset Management-Led Consortium to Acquire Qube Holdings in A$11.7B Deal

February 17, 2026

Logistics & Distribution

Qube Holdings Limited has entered into a binding Scheme Implementation Deed with a consortium led by Macquarie Asset Management to acquire 100% of Qube’s shares via a scheme of arrangement valued at approximately A$11.7 billion. Under the terms, Qube shareholders (other than UniSuper) will receive A$5.20 in cash per share, while UniSuper’s 15.07% stake will be transferred into an equivalent holding structure within the consortium.

SI Solutions Acquires Integrity Specialists, LLC

September 2, 2025

Industrial Services

SI Solutions, LLC (backed by MidOcean Partners) has acquired Integrity Specialists, LLC, a provider of advanced non-destructive examination (NDE) and pipeline inspection services based in Annandale, Minnesota. The acquisition expands SI Solutions' NDE and pipeline integrity capabilities and scales its services to the natural gas midstream market as part of its platform growth.

Macquarie Asset Management Acquires Minority Stake in Dow's U.S. Gulf Coast Infrastructure to Launch Diamond Infrastructure Solutions

December 9, 2024

Infrastructure

A fund managed by Macquarie Asset Management agreed to acquire a 40% minority equity stake (with an option to increase to 49%) in select U.S. Gulf Coast infrastructure assets of Dow Inc., forming a new joint-venture platform called Diamond Infrastructure Solutions. The assets—site utilities, power and steam production, pipelines, environmental operations and storage—span five Dow sites in Texas and Louisiana; the transaction provides Dow with cash proceeds (approximately $2.4bn initially, up to ~$3.0bn if Macquarie increases to 49%) and creates a specialist infrastructure operator to serve Dow and third-party industrial customers.

MidOcean Partners Acquires SI Solutions

August 15, 2024

Industrial Services

MidOcean Partners, a New York-based private equity firm, has acquired SI Solutions, a provider of engineering, testing, inspection, compliance, maintenance and digital solutions for power and critical infrastructure. SI Solutions (more than 450 employees) will remain led by CEO Mark Marano; management, employee shareholders and prior investor Jumana Capital have reinvested in the business. Terms were not disclosed.

SI Solutions Acquires SC Solutions, Inc.

January 4, 2024

Engineering Services

SI Solutions has acquired SC Solutions, Inc., a Sunnyvale-based provider of structural and controls engineering, to expand its Critical Infrastructure division and add controls engineering capabilities. The deal strengthens SI Solutions’ technical offerings across energy, process and infrastructure markets and integrates SC Solutions’ expertise into SI’s platform backed by Jumana Capital.

Macquarie Asset Management Acquires Majority Stake in Southern Water

August 9, 2021

Utilities

Macquarie Asset Management has agreed to acquire a majority stake in Southern Water Services Limited and will invest over £1 billion of new equity to recapitalise the business. The capital will strengthen Southern Water’s balance sheet and fund a multi-year £2 billion investment programme to reduce leaks and pollution incidents, improve customer service, and boost financial resilience.