General

General

@DavidWisniewski001
• 3 months ago

Where are all the fat cats?

If you have lived on a farm especially one with grain and corn you know there are mice and rats everywhere. So, when you see a fat cat you know they know how to catch a rat.

In the data center business there are many components that make up a data center but we generally know what is inside all of them. Who doesn`t it is all over the news. NVIDIA GPUS the best in the business people cant get enough. However, that is one part of the system right now businesses have found their crystal ball big data, AI , Huccapo Sweaters, and footie pajamas. They all want a piece of the pie but that is not where the interesting things are happening.

Who is making the HVAC units needed to cool the building?

Who is making the HEPA filters to keep clean air in the building?

Who is is supplying the Aluminum needed for cooling?

Electrical Infrastructure? Who is supplying that?

We are looking for our barn yard fat cat.

Well since we are speaking of AI lets use it to find out who is our fat cat who supplies STS switches to AI data centers

The following are the primary manufacturers in the US market:

1. LayerZero Power Systems

  • Headquarters: Aurora, Ohio

  • Focus: They are a specialized vendor known for "eSTS" (Static Transfer Switches) designed specifically for high-density data centers and semiconductor manufacturing.

  • Key Tech: They utilize a proprietary "Dynamic Phase Compensation" algorithm to eliminate transformer inrush during transfers.

2. ABB (Cyberex) (Do they make their own power semi-conductors?)

  • Headquarters: Cary, North Carolina (US HQ); Richmond, Virginia (Cyberex facility)

  • Legacy: ABB acquired Cyberex, the company that originally invented the Static Transfer Switch.

  • Product: The SuperSwitch®4 is their flagship digital STS, ranging from 200A to 4000A, and is widely used in large-scale North American industrial and data center applications.

3. Vertiv (Liebert)

  • Headquarters: Westerville, Ohio

  • Focus: Vertiv's Liebert STS2 and STS2/PDU lines are industry standards for rack-level and room-level power distribution. They are designed to integrate tightly with Liebert UPS systems and thermal management.

4. Eaton (PDI)

  • Headquarters: Raleigh, North Carolina / Moon Township, Pennsylvania

  • Details: Eaton expanded its STS footprint significantly by acquiring Power Distribution, Inc. (PDI). They offer modular, hot-swappable STS units focused on minimizing the Mean Time to Repair (MTTR) in high-availability environments.

5. Schneider Electric (ASCO)

  • US Presence: West Kingston, Rhode Island / Florham Park, New Jersey

  • Legacy: Through their acquisition of ASCO Power Technologies, Schneider provides a robust line of STS products. While ASCO is famous for ATS, their STS lines (like the Series 300) are targeted at healthcare and critical IT infrastructure.

6. Siemens (Russelectric)

  • Location: Hingham, Massachusetts (Russelectric HQ)

  • Focus: Siemens acquired Russelectric, which specializes in rugged, high-speed transfer switches for utilities and large industrial plants. They are often preferred for custom or complex power system architectures.

I have never hear of Layer Zero

but a quick google search gives

LayerZero Power Systems, a manufacturer of data center power equipment, agreed to be acquired by private equity firm Advent International in a deal valued at approximately $1 billion, according to reports in June 2025.

That is one fat cat. However, this goes to show that there is a 1 billion dollar gap in the market. That is essentially unaccounted for. That 1 billion dollar company must buy a lot of products who are they buying from? Are they publicly traded? My research ends here for STS systems. I have picked up some new more interesting leads but generally I am finding that making power semi-conductors is a crumby business.

What about the Heppa Filters?

  • Parker Hannifin (NYSE: PH)

  • Atmus Filtration Technologies (NYSE: ATMU)

  • ESCO Technologies (NYSE: ESE).

  • Daikin Industries (OTC: DKILY / TYO: 6367): The Japanese giant Daikin owns AAF Flanders (American Air Filter). If you want exposure to AAF Flanders' dominance in the HEPA market, you would invest in Daikin.

Any fat cats here?