# Promise Holdings

- Headquarters: United States



## Announcements (1)

- 2023-01-18: [Chicago Switchboard to acquire IER Electrical Equipment and Controls](https://endata.com/announcements/74822-chicago-switchboard-to-acquire-ier-electrical-equipment-and-controls) (Acquisition · Elmhurst, Illinois; Houston, Texas; San Antonio, Texas, United States)

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