What Does Cirrus Logic Make? The Chip Company Apple Can't Do Without

Cirrus Logic makes the audio chips inside every iPhone, iPad, and Mac, and Apple accounts for roughly 91% of its sales. Here's what that dependency looks like from both sides.

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Aug 9, 2026 · 2 min read

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Few public companies are as tied to a single customer as Cirrus Logic is to Apple. Roughly 91% of its net sales come from one company, and in return, Cirrus Logic's audio and mixed-signal chips have shipped inside essentially every iPhone, iPad, and Mac for years.

The short answer

Cirrus Logic's business is concentrated on both ends:

• Who buys it: Apple accounts for roughly 91% of Cirrus Logic's net sales, using its audio chips across the iPhone, iPad, and Mac lineup.
• Who fabricates the chips: TSMC is the primary foundry partner; GlobalFoundries is a second source with a supply agreement running through 2026.
• Why it matters: this is one of the tightest customer-supplier relationships in consumer electronics, and it runs in both directions.

The full interactive map is on Cirrus Logic's supply chain page.

A business built around one customer

Apple doesn't just buy from Cirrus Logic, it defines the company's revenue. Cirrus Logic's audio and mixed-signal chips handle sound processing across Apple's device lineup, and that single relationship accounts for roughly 91% of net sales. It's a level of customer concentration that would be a serious risk for most companies, but it has also made Cirrus Logic one of the most consistent beneficiaries of Apple's device volumes: as long as Apple keeps shipping hundreds of millions of devices a year, Cirrus Logic's chips ship inside them.

Who actually makes the chips

Cirrus Logic is fabless, meaning it designs chips without owning the factories that build them. is its primary foundry partner, manufacturing the mixed-signal wafers that become finished audio chips. serves as a second source, with a long-term wafer supply agreement running through calendar 2026 that includes new Apple-tied process work at its Malta, New York fab, giving Cirrus Logic some geographic diversification away from Taiwan-based production.