# Chicago Switchboard to acquire IER Electrical Equipment and Controls

White Oak Partners initiated the add-on acquisition of IER Electrical Equipment and Controls by Chicago Switchboard, a portfolio company of Promise Holdings. IER manufactures custom power distribution and motor control products.

- Type: Acquisition
- Announced: 2023-01-18
- Where: Elmhurst, Illinois; Houston, Texas; San Antonio, Texas, United States
- Status: announced
- Products: custom power distribution equipment, motor controls
- Sectors: [Electrical Equipment](https://endata.com/sectors/electrical-equipment.md)

## Companies

- [Gemspring Capital](https://endata.com/companies/25096.md) (investor)
- [Chicago Switchboard](https://endata.com/companies/67942.md) (acquirer)
- [IER Electrical Equipment and Controls](https://endata.com/companies/67943.md) (target)
- [Promise Holdings](https://endata.com/companies/67944.md) (investor)
- [White Oak Partners](https://endata.com/companies/67945.md) (partner)
- [IER](https://endata.com/companies/68080.md) (target)

## Sources

- [whiteoakpartnersllc.com](https://www.whiteoakpartnersllc.com/news-ier), 2023-01-18: "White Oak Partners initiated the add-on acquisition of IER Electrical Equipment and Controls by Chicago Switchboard, a portfolio company of Promise Holdings."
- [einpresswire.com](https://www.einpresswire.com/article/613106427/chicago-switchboard-acquires-ier), 2023-01-25: "Our acquisition of IER is consistent with our long-term goal to build a national provider in the custom electrical distribution industry."
- [ewweb.com](https://www.ewweb.com/news/mergers-acquisitions/article/21260057/chicago-switchboard-buys-ier-electrical-equipment-and-controls), 2023-02-14: "IER is a manufacturer of custom products used for power distribution and motor controls in a wide variety of end markets."

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Data from Endata (https://endata.com/). Announcements are summarized from public sources and may be incomplete; check the linked originals.