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Littelfuse, Inc. (LFUS) is a technology company in the circuit protection parts industry, based in Rosemont, United States, with about 18,000 full-time employees.
It reported revenue of $2.39 billion for fiscal year 2025, up 8.9% from fiscal year 2024, and net income of -$71.70 million. In Q2 2026 (the quarter ended June 30, 2026) revenue was $738.78 million, up 20.4% from a year before. Its largest business segment, Electronics, brought in 56% of segment revenue in fiscal year 2025; Other Countries was the largest region with 41%. Its market capitalization was $10.83 billion as of October 9, 2026.
Figures from company filings and market data; latest fiscal year ended December 31, 2025; market data as of October 9, 2026.
Littelfuse, Inc. designs, manufactures, and sells electronic components, modules, and subassemblies. It operates through three segments: Electronics, Transportation, and Industrial.
Littelfuse reported $2.39 billion in revenue for fiscal year 2025, up 8.9% from $2.19 billion in fiscal year 2024. In Q2 2026 revenue was $738.78 million.
Electronics, with $1.35 billion or 56% of segment revenue in fiscal year 2025. Next: Transportation (28%) and Industrial (15%).
Other Countries: 41% of revenue by region in fiscal year 2025, followed by United States (35%).
$10.83 billion as of October 9, 2026.