Who owns SAI Advanced Power Solutions, Inc.

SAI - Profile

SAI Advanced Power Solutions designs, builds and retrofits electrical switchgear and power distribution equipment, including low voltage and medium voltage switchgear, the Profusion power distribution unit that packages a main disconnect, K rated transformer and metered distribution cabinet in one platform, and the EVention distribution platform for electric vehicle charging sites. Its equipment is used by data centre operators, government facilities, healthcare providers, large corporates and equipment makers who resell it, and the company runs a vertically integrated operation in the Chicago area with a 100,000 square foot production centre at Franklin Park, Illinois, a warehouse campus at St. Charles opened in 2024 and a distribution centre at Carol Stream. The business traces to Switchboard Apparatus Co., founded in Chicago in 1907 and run by three generations of the Berthold family until 1992, and took its present form in 2010 when Switchboard Apparatus combined with the custom engineered services unit bought from Emerson Network Power's ASCO business.

The disclosed stakes

One row per position. Where a holder reports the same company in two share classes, both rows are shown rather than summed, because the class is part of a position's identity.

Where each figure comes from

A private stake has no ownership form behind it, so the source is always the holder's own filing or disclosure. Anything modelled says so, with the arithmetic.

• Pinnacle West Capital Corporation, as of 30 Jun 2026. SAI is a private corporation that manufactures electrical switchgear equipment used by data centers. El Dorado holds common stock in SAI and a board seat. The 10-Q's equity-method table gives SAI and Copper Sky separate carrying values (SAI $34 million, Copper Sky $18 million, total $52 million as of 30 Jun 2026), so this is SAI's own disclosed figure, not a share of a combined bucket. source