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- SI Solutions
SI Solutions Acquisition & Valuation
SI Solutions was acquired by Macquarie Asset Management for $600M in September 2026.
SI Solutions acquisition price
$600M
Acquired by Macquarie Asset Management · Sep 2026
Key investors in SI Solutions
UniSuper
SI Solutions Overview
About SI Solutions
SI Solutions is a Stavanger-headquartered firm providing asset management and maintenance for energy infrastructure on the Norwegian Continental Shelf. The company delivers digital twins, predictive maintenance, and integrity assessments for offshore platforms, pipelines, and subsea equipment. Serving Equinor and other operators, SI Solutions integrates IoT sensors with AI analytics to minimize downtime in oil and gas production.
HQ
Website
Status
Acquired
Customer focus
B2B
Revenue model
Services
Valuation
$600M (Sep 2026)
SI Solutions Acquisition
SI Solutions was acquired by Macquarie Asset Management for $600M on 10 September 2026.
Macquarie Asset Management, through a Macquarie Asset Management-led consortium that includes co-investors such as UniSuper, agreed in September 2026 to acquire a majority stake in SI Solutions, Inc. ("SI Solutions") from private equity firm MidOcean Partners. The transaction covers SI Solutions and all of its affiliate companies and values SI Solutions at around $600 million including debt. The deal structure is a majority acquisition by financial sponsors, with closing expected in Fall 2026 subject to regulatory approvals and customary conditions. The acquisition is intended to expand Macquarie Asset Management's capabilities in structural integrity engineering, testing and software solutions for critical infrastructure, energy and power markets. By taking over SI Solutions from MidOcean Partners, Macquarie and its co-investors gain a platform that provides technical expertise to support reliability and resiliency of U.S. power markets, safety and regulatory compliance for critical assets, and the expansion of public and private infrastructure in the U.S. and internationally. The deal builds on MidOcean's business services portfolio exit strategy and is part of Macquarie's broader push into infrastructure-related services. SI Solutions is a leading provider of engineering, testing, inspection, compliance and maintenance services, digital solutions and expert consulting for power and other critical infrastructure end markets. Headquartered in Huntersville, North Carolina, the company operates from 16 locations across the United States, including five testing laboratories, and serves more than 330 clients across critical infrastructure sectors. SI Solutions' group includes affiliate entities such as Structural Integrity Associates and related specialist units, giving it an operational footprint that spans high-end structural integrity analysis, field services and software tools for infrastructure owners and operators.
| Acquirer | Date | Type | Price |
|---|---|---|---|
| 10 Sep 2026 | PE buyout | $600M |
SI Solutions Valuation
SI Solutions is currently valued at $600M, based on its secondary sale in September 2026.
The round included UniSuper.
SI Solutions valuation by funding round
| Date | Stage | Valuation |
|---|---|---|
| Sep 2026 | Secondary | $600M |
SI Solutions Funding History
SI Solutions has 1 recorded secondary share sale and no primary funding rounds.
| Date | Stage | Investors | Valuation | Deal Summary |
|---|---|---|---|---|
| Sep 2026 | Secondary | UniSuper | $600M | Macquarie Asset Management-led consortium, with co-investors including UniSuper, agreed on September 10, 2026 to acquire a majority stake in SI Solutions from MidOcean Partners for an implied enterprise value of about $600 million including debt. The transaction is a private equity secondary sale rather than a public listing or SPAC merger, and closing was expected in Fall 2026 subject to regulatory approvals and customary conditions. SI Solutions provides structural integrity engineering, testing and software solutions to critical infrastructure owners and operators, with operations spanning SI Solutions and its affiliate businesses including SC Solutions, Structural Integrity Associates, Integrity Specialists and C2C Technical Services. The deal was positioned as a long-term infrastructure investment, with UniSuper highlighting support for reliable power generation and essential energy assets. MidOcean Partners was the prior owner, and the business was described as serving critical infrastructure customers with specialized technical capabilities. |
Who has invested in SI Solutions?
1 investor has backed SI Solutions across its funding rounds, including UniSuper.
SI Solutions Investors
| Investor | HQ | Rounds | Role | First check |
|---|---|---|---|---|
This data is available for Pro users. Sign up to see all 1 SI Solutions investors. Start Free Trial | ||||
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Start Free TrialAcquisitions by SI Solutions
SI Solutions has acquired 3 companies to date.
Last acquisition by SI Solutions was on February 2nd 2026. SI Solutions acquired Radiological Solutions for undisclosed valuation.
Latest Acquisitions by SI Solutions
| Description | Radiological Solutions offers radiation protection, nuclear fuel inspection, and sampling systems for power generation and industrial clients worldwide. | Integrity Specialists is a nondestructive testing firm headquartered in Odessa, Texas. The company performs ultrasonic, radiographic, and magnetic particle inspections on pipelines and mechanical equipment for oilfield operators like Occidental Petroleum. With 100 technicians certified to API 570 and ASNT Level III, it completes 5,000 inspections yearly across Permian Basin projects, including fitness-for-service evaluations and automated phased array testing. | SC Solutions is a Maryland-based engineering firm delivering process control, aerospace, mechanical, and structural analysis services. It provides modeling software like SINAMICS for semiconductor and energy sectors, supporting clients such as NASA and Boeing. Founded in 1996, the company employs PhD-level engineers specializing in multiphysics simulations for defense and advanced materials applications. |
| HQ Country | |||
| HQ City | - | - | San Francisco, CA |
| Deal Date | 2 Feb 2026 | 2 Sep 2025 | 4 Jan 2024 |
| Valuation | undisclosed | undisclosed | undisclosed |
| EV/Revenue | |||
| EV/EBITDA | |||
This data is available for Pro users. Sign up to see all SI Solutions acquisitions and their M&A valuation multiples. Start Free Trial | |||
SI Solutions Competitors
SI Solutions competitors include listed companies like NightFood Holdings, Dexterra Group, Quess Corp and K-Bro Linen, and private ones like Graviton and Shanghai Taomao.
| Company | HQ | Status | Revenue | EBITDA | Valuation | Revenue Multiple |
|---|---|---|---|---|---|---|
| Private | - | - | $168M | - | ||
| Publicly listed | $482K | ($6M) | $15M | - | ||
| Publicly listed | $746M | $78M | $650M | 1.0x | ||
| Publicly listed | $1.6B | $32M | $550M | 0.3x | ||
| Publicly listed | $363M | $65M | $386M | 1.5x | ||
| Private | - | - | $1.3B | - |
SI Solutions Public Comps
SI Solutions is no longer listed, but its public comps include Quess Corp, Dexterra Group, K-Bro Linen, Lassila & Tikanoja, Elevate Service Group, WF International, Mark2 Corporation, NightFood Holdings, Mint Inc. and Shoucheng Holdings.
| Last FY | EV/Revenue | EV/EBITDA | ||||||
|---|---|---|---|---|---|---|---|---|
| Revenue | EBITDA | Last FY | LTM | 2027E | Last FY | LTM | 2027E | |
| $1.6B | $32M | 0.3x | 0.3x | 16.6x | 15.2x | |||
| $746M | $78M | 1.1x | 1.0x | 10.5x | 8.5x | |||
| $363M | $65M | 1.6x | 1.5x | 9.2x | 7.8x | |||
| $488M | $96M | 1.0x | 1.0x | 5.2x | 5.3x | |||
| $4M | ($1M) | 24.1x | 2.2x | (76.1x) | 23.5x | |||
| $13M | ($3M) | 2.2x | - | (10.6x) | - | |||
| $218M | $4M | 0.1x | - | 4.7x | - | |||
| $482K | ($6M) | 97.0x | - | (7.3x) | - | |||
This data is available for Pro users. Sign up to see all SI Solutions competitors and their valuation data. Start Free Trial | ||||||||
Common questions about SI Solutions
| Where is SI Solutions headquartered? | SI Solutions is headquartered in Charlotte, NC, United States. |
| Is SI Solutions publicly listed? | No, SI Solutions was acquired by Macquarie Asset Management in September 2026. |
| Who acquired SI Solutions? | SI Solutions was acquired by Macquarie Asset Management in September 2026. |
| How much was SI Solutions acquired for? | SI Solutions was acquired for $600M in September 2026. |
| What is SI Solutions' valuation? | SI Solutions was last valued at $600M in its secondary sale in September 2026. |
| Who are SI Solutions' investors? | SI Solutions' investors include UniSuper. |
| Which companies are comparable to SI Solutions? | Companies comparable to SI Solutions include Graviton, NightFood Holdings, Dexterra Group, Quess Corp, K-Bro Linen and Shanghai Taomao. |
| How many companies has SI Solutions acquired? | SI Solutions has acquired 3 companies, including Radiological Solutions, Integrity Specialists and SC Solutions. |
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