Explore our Story

Future Ready Commitment to Push Boundaries in Customized Solutions 


At SAI Advanced Power Solutions, we design, build, and support reliable power distribution systems that keep critical operations running. From low voltage and medium voltage switchgear and power distribution units (PDU) to engineering services and system integration, our work is focused on one thing- delivering power solutions that perform when it matters most.


With over a century of experience SAI Delivers customer success with one of the industry's best lead times and innovative engineering solutions with flexible and scalable manufacturing.

Our Mission

ONE TEAM, ONE MISSION, CUSTOMER SUCCESS

Our mission is simple and focused:


To deliver reliable, efficient, and innovative power distribution solutions that support critical infrastructure and drive long-term performance.

We are committed to:


  • Building systems that maximize uptime and safety
  • Supporting customers with responsive, expert service
  • Continuously improving through innovation and technology
  • Helping industries adapt to modern energy challenges

Who We Serve



SAI supports customers across industries where power reliability is essential:

  • Data Centers and Mission-Critical Facilities
  • Renewable Energy and Emerging Technologies
  • Industrial and Manufacturing Plants
  • Commercial Buildings and Real Estate
  • Utilities and Power Infrastructure
  • Healthcare and Institutional Facilities


From large-scale infrastructure to specialized applications, we deliver solutions tailored to each customer’s needs.

Our Story

A Legacy Built on Electrical Innovation

Our story begins in 1907 in Chicago, where Switchboard Apparatus Co. manufactured electrical equipment for a rapidly growing city. Over decades, the company built a reputation for quality and craftsmanship under the leadership of the founding Berthold family.



In 1992, the business transitioned to Switchboard Apparatus Inc., continuing its legacy while expanding capabilities.

Growth Through Innovation and Expansion

SAI’s growth reflects a steady, deliberate approach:

Timeline infographic titled “A Legacy of 145 Years, Built to Last” with SAI logo and milestone icons.

Our Culture

One Team, One Mission, Customer Success

At SAI, our culture is built around people, accountability, and continuous improvement.

We believe:

  • Strong teams deliver better outcomes
  • Ownership and accountability drive results
  • Collaboration leads to smarter solutions
  • Learning never stops

From the shop floor to engineering and service teams, our focus is on doing the job right and doing it better every time.

Leadership & Philosophy

SAI’s leadership approach is grounded in steady growth, practical decision-making, and long-term thinking.

We don’t chase shortcuts. Instead, we focus on:

  • Building strong foundations in engineering and manufacturing
  • Investing in people, processes, and facilities
  • Delivering consistent quality across every project
  • Earning trust through reliability and performance

This disciplined approach has allowed SAI to grow step by step while maintaining the standards our customers depend on.

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Experience You Can Count On

With over 100 years of combined legacy and modern expertise, SAI is trusted by customers who need quality, reliability, and results.

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