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SI Solutions
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Specialized professional services for critical infrastructure
SI Solutions
Work Here?
Specialized professional services for critical infrastructure
Overview
SI Solutions provides professional and specialty services to owners of critical infrastructure assets. It works with sectors such as nuclear power, power generation, controls, utility and energy, critical infrastructure, and process industries across the US and worldwide. Its services help asset owners maintain and operate facilities through engineering, consulting, and field support, focusing on reliability, safety, and regulatory compliance. The company differentiates itself by its deep domain expertise in critical infrastructure and its global reach across multiple high-stakes industries, rather than selling hardware or generic consulting. Its goal is to be a leading provider of professional and specialty services for critical infrastructure asset owners.
About SI Solutions
Industries
Industrial & Manufacturing
Energy
Company Size
1-10
Company Stage
N/A
Total Funding
N/A
Headquarters
Charlotte, North Carolina
Founded
2023
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Simplify's Take
What believers are saying
- Macquarie agreed September 10, 2026 to buy SI, signaling sponsor confidence.
- SI bought Radiological Solutions on February 2, 2026, deepening nuclear chemistry capabilities.
- Integrity Specialists joined on September 2, 2025, expanding pipeline inspection reach.
What critics are saying
- The transaction needs regulatory approval before Fall 2026 close; antitrust scrutiny delays timing.
- SI's nuclear and pipeline work exposes it to customer failures, audits, and shutdowns.
- A major nuclear-safety or compliance failure would freeze contracts and wreck SI's brand.
What makes SI Solutions unique
- SI Solutions spans engineering, testing, software, and NDE across 16 locations and five labs.
- It serves 330-plus critical-infrastructure clients in nuclear, gas power, pipeline, and petrochemicals.
- Macquarie said SI's three 2026 add-ons created a broader digital platform.
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Benefits
Health Insurance
Dental Insurance
Vision Insurance
Life Insurance
Disability Insurance
Health Savings Account/Flexible Spending Account
Remote Work Options
Paid Vacation
Paid Sick Leave
Parental Leave
401(k) Company Match
Company News
Macquarie Asset Management, alongside co-investors including UniSuper, has agreed to acquire a majority stake in SI Solutions from private equity firm MidOcean Partners. The transaction is expected to close in autumn 2026, pending regulatory approvals. SI Solutions provides structural integrity engineering, testing and software solutions to critical infrastructure owners and operators. Headquartered in Huntersville, North Carolina, the company operates from 16 locations and serves more than 330 clients across sectors including nuclear, gas power, pipeline and petrochemical. The acquisition follows Macquarie Asset Management's strategy of investing in businesses serving essential industrial and energy end-markets. This marks the third such transaction, following investments in Potters Industries and DynaGrid in 2025. Macquarie sees growth opportunities driven by structural tailwinds in power generation markets where SI specialises.
HUNTERSVILLE, N.C., Sept. 2, 2025 /PRNewswire/ - SI Solutions, LLC ("SIS") proudly announces the acquisition of Integrity Specialists, LLC ("Integrity Specialists"), a critical provider of advanced non-destructive examination (NDE) and inspection for the natural gas pipeline industry.
MidOcean Partners (“MidOcean”), a premier New York-based alternative asset manager specializing in middle-market private equity, structured capital, a
MidOcean Partners has acquired Si Solutions, a US-based provider of engineering solutions for critical infrastructure.
CHARLOTTE, N.C., Jan. 4, 2024 /PRNewswire/ -- SI Solutions is pleased to announce the purchase of SC Solutions, Inc., a respected provider of innovative engineering solutions for the advanced process controls and structural engineering industries. Founded in 1987, SC Solutions has served its clients in Silicon Valley and beyond, expanding to Sacramento, CA, Portland, OR, and Atlanta, GA.SI Solutions, a privately held company, is a leading provider of mission-critical engineering, construction, testing, and maintenance services to the energy, process, and infrastructure markets. SI Solutions has over 500 employees and ten offices serving customers across the U.S. and internationally. SI's capabilities span multiple technical disciplines, with a focus on specialized engineering, instrumentation, electrical design and construction, and advanced nondestructive examination.This addition to SI Solutions grows our capabilities in supporting our critical infrastructure clients
SI Solutions is Hiring for 47 Jobs on Simplify!
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About SI Solutions
Industries
Industrial & Manufacturing
Energy
Company Size
1-10
Company Stage
N/A
Total Funding
N/A
Headquarters
Charlotte, North Carolina
Founded
2023
SI Solutions is Hiring for 47 Jobs on Simplify!
Find jobs on Simplify and start your career today