We independently review everything we recommend. When you buy through our links, we may earn a commission. Learn more› By Thom Dunn Thom Dunn is a writer focusing on home heating and cooling. He once ...
TSMC leads with 72% of Q4 2025 semiconductor foundry revenue, more than 11 times its closest competitor. Samsung, SMIC, and UMC hold single-digit shares, with no other company above 5%. The U.S.