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D.I's competitors and similar companies include YEST.

	D.I D.I (디아이) is a manufacturer and supplier of semiconductor testing equipment.	YEST YEST (예스티) is a company that specializes in semiconductor and display manufacturing equipment.
Founding Date	Founding Date 1955	Founding Date 2000
Type	Type Public	Type Public
Tags	Tags Manufacturing & Industrial electronic components machinery manufacturing equipment semiconductors	Tags Manufacturing & Industrial displays electronics manufacturing equipment semiconductors
Locations	Locations Seoul, KR HQ Hwaseong, KR	Locations Pyeongtaek, KR HQ
Employees	Employees 189	Employees 160
Financial
Revenue (est.)	Revenue (est.) ₩432.3b (FY, 2025)	Revenue (est.) ₩100.1b (FY, 2024)
Cost of goods	Cost of goods ₩340.4b (FY, 2025)	Cost of goods ₩71.6b (FY, 2024)
Gross profit	Gross profit ₩92.5b (FY, 2025)	Gross profit ₩35b (FY, 2024)
Net income	Net income ₩13.5b (FY, 2025)	Net income ₩11.2b (FY, 2024)

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HQ

Pyeongtaek, KR

Employees

160

YEST (예스티) is a company that specializes in semiconductor and display manufacturing equipment.