It focuses on developing and selling wireless fidelity microcontroller unit communication chips and modules that are used in internet of things (IoT).

[2] On 22 July 2019, Espressif heard its initial public offering and became a listed company on the Shanghai Stock Exchange STAR Market.

[3] In March 2022, it was reported that Espressif was moving exclusively to the RISC-V open source instruction set architecture.

[4] As of September 2023, Espressif has shipped over 1 billion IoT chips and is the fifth largest company in the Wi-Fi microcontrollers business.

[2] Initially focusing on Wi-Fi microcontrollers, the company has expanded into the fields artificial intelligence of things and system on a chip.