Silicon Laboratories, Inc. (SLAB) Business Profile

What it does

Silicon Laboratories designs chips and software that help devices communicate wirelessly. Founded in 1996 and headquartered in Austin, it focuses on the Internet of Things: equipment and everyday products that collect information or connect to other devices and networks.

Its customers put those components into products such as industrial controls, smart meters, electronic shelf labels, home locks, sensors and connected medical devices. Silicon Labs groups its products by the markets they serve: Industrial & Commercial and Home & Life. Its customers include device manufacturers that buy directly or through distributors and contract manufacturers.

The company’s chips combine analog functions, which handle signals from the physical world, with digital processing and wireless communication. It sells microcontrollers, wireless systems-on-a-chip and modules designed for different connectivity standards, including Bluetooth, Thread, Wi-Fi, Zigbee and Z-Wave. Integrating functions into a chip can reduce the number of components a customer needs in its own design.

Silicon Labs also provides software, development tools and engineering support. Its Simplicity Studio tools give developers access to software, documentation and support resources. Security hardware and software are intended to help manufacturers protect devices and data, while low-power designs address products that run on batteries.

The company designs its chips but does not manufacture most of them itself. Outside fabricators produce wafers to its designs, and subcontractors assemble and test the resulting devices.

How it makes money

Silicon Labs generates revenue predominantly by selling its mixed-signal semiconductor products. It groups its portfolio into Industrial & Commercial and Home & Life according to the end markets the products address, rather than selling a single chip for every application. Industrial uses include automation, metering and asset tracking; home and life uses include connected home equipment, health devices and wearables.

The portfolio includes microcontrollers, wireless systems-on-a-chip and modules. A system-on-a-chip brings several functions together in one device, while modules give customers a packaged wireless connectivity option. Products support different wireless protocols, and the company provides software and development tools to help customers incorporate them into their designs.

Customers generally order products through individual purchase orders rather than long-term agreements. Before a sale, Silicon Labs often works with a customer to get its chip designed into a product. A design win occurs when the customer has incorporated the chip into its product architecture and ordered it. The company says that once a design is produced in high volumes, customers are reluctant to make major changes because of the work involved. Product life cycles are relatively long, although a design win does not guarantee the revenue the company expects.

Revenue varies with shipment volumes, product mix and selling prices. Silicon Labs expects average selling prices generally to decrease as products mature. Its gross margin also changes with factors including manufacturing yields, inventory adjustments and product mix.

Revenue increased $200.4 million in fiscal 2025 compared with fiscal 2024; gross margin was 58.2% in fiscal 2025. The available disclosures do not give a latest-quarter revenue total.

Customers and how it sells

Silicon Labs serves manufacturers building connected products for industrial, commercial, home and health applications. Examples include companies making smart meters, building controls, home security equipment and patient-monitoring devices. Its applications engineers work with customers and distributors during the process of designing chips into new products.

The company sells through its direct sales force, independent representatives and distributors. Some end customers purchase through contract manufacturers, which obtain Silicon Labs products and incorporate them with other components. The company regards the end customer as its customer even when a distributor or contract manufacturer buys and pays for the chips.

In fiscal 2025, the ten largest end customers accounted for 25% of revenue, and no end customer represented more than 10% of revenue. Two distributors, Arrow Electronics and Edom Technology, represented 28% and 21% of revenue, respectively, in fiscal 2025.

Silicon Labs maintains sales offices in Asia, the Americas and Europe. It attributes revenue geographically based on where products are shipped. Revenue derived from outside the United States was 91% in fiscal 2025. The company expects a majority of its revenue to continue to come from customers outside the United States.

Suppliers and costs

Silicon Labs uses a fabless model: it designs chips and sends the designs to outside foundries that manufacture the silicon wafers. It primarily partners with Taiwan Semiconductor Manufacturing Co. and Semiconductor Manufacturing International Corporation for the majority of its wafers. The company uses standard CMOS manufacturing technology and believes the fabless model reduces its capital requirements.

After fabrication, wafers go to outside assembly subcontractors. Testing can be performed by assembly contractors, other outside test providers or Silicon Labs’ own facilities. Most units shipped in fiscal 2025 were tested by offshore subcontractors, and the company expects substantial use of those subcontractors during fiscal 2026.

Cost of revenue includes wafer purchases, assembly, testing and shipping, as well as manufacturing support, logistics, quality assurance, software royalties and other license costs. Research and development includes personnel, new-product masks, services and equipment. Research and development expense was $353.2 million in fiscal 2025.

Supplier closures or capacity reductions could make it difficult to obtain materials or delay shipments while work is moved to another provider. Gross margin can change with selling prices, product mix, yields and inventory valuation adjustments.

Competitive position

Silicon Labs competes in semiconductor markets that it describes as intensely competitive and subject to rapid technological change. Named competitors include Espressif, Infineon, MediaTek, Microchip, Nordic Semiconductor, NXP, Qualcomm, Renesas, STMicroelectronics, Synaptics, Telink and Texas Instruments. They compete across the company’s portfolio and the markets it serves; the available disclosures do not assign each competitor to a particular product category.

Customers consider factors including chip size, integration, price, performance, power requirements, software and support. Competitors may offer bundles that provide a more complete product, while customers may develop alternatives internally. Silicon Labs also faces competition from module makers and other systems suppliers.

The company combines analog and radio-frequency design, software, security and wireless expertise. It protects technology using patents, trade secrets and other measures. Our reading: engineering expertise and integrated software provide a meaningful potential barrier because customers need those capabilities together, but competitors also have technical resources and can offer broader bundles.

Silicon Labs spends time helping customers incorporate its chips into their products. Our reading: design-in can create switching costs after a product reaches volume production, but it is less protective before that point because design wins do not always turn into expected sales.

Our reading: intellectual property adds protection, but its strength is uncertain because patents can expire, be challenged or be circumvented.

Growth opportunities

Silicon Labs develops products for connected devices across industrial, commercial, home and health markets. Applications range from smart meters and industrial equipment to electronic shelf labels, home security and wearable health devices. Its work on low-power wireless connections addresses devices where battery life and size matter, while its security hardware and software address manufacturers’ need to protect devices and data.

The company supports several wireless standards and develops tools for products that use multiple protocols. Its Series 3 portfolio released its first product in 2025, using the 22 nm process node to provide greater computing capability, interoperability and energy efficiency. The company also invests in security research and development to address changing threats, regulatory requirements and customer needs.

Research and development expense was $353.2 million in fiscal 2025. Engineers work with customers on chip designs and use those interactions to identify potential derivative products and features. The sales cycle can be long, however, and spending on development can precede product sales by a substantial period.

Revenue increased $200.4 million in fiscal 2025 compared with fiscal 2024. Revenue from both Industrial & Commercial and Home & Life products increased as unit volumes and average selling prices rose. The prior year had been affected by customers reducing inventories. Silicon Labs also experienced sequential revenue improvements over the course of fiscal 2025.

Structural risks

• Product development and demand: Research and development is focused on a limited number of technologies and products. Delays, abandonment or failure to gain market acceptance could compromise Silicon Labs’ competitive position. A lengthy sales cycle also means development spending can occur well before any corresponding sales.
• Supply chain: The company relies on outside parties to manufacture, assemble and test its products. Capacity reductions or disruptions could delay shipments, and concentration of service providers and customers in the same geographic region increases exposure to regional disruption.
• Orders and inventory: Customers do not provide long-term commitments, and backlog orders can typically be changed or canceled without penalty. Silicon Labs builds products using customer forecasts before receiving purchase orders, exposing it to inventory costs if demand differs from those forecasts.
• Competition and pricing: Some competitors have more resources, broader customer bases or complementary products. Average selling prices can decline as products mature, putting pressure on revenue and gross margin.
• Proposed merger: Silicon Labs expects its acquisition by Texas Instruments to close in the first half of 2027, subject to stockholder and regulatory approvals and other customary conditions. The merger may not close on that timetable or at all, and uncertainty could affect the business.

Bottom line

Our reading

Our reading: Silicon Labs is a specialist chip designer whose business depends on combining wireless, mixed-signal and software capabilities with the work of getting those components designed into customers’ products. That design-in process can support long product lives, but revenue remains exposed to order changes, pricing and outsourced production. The proposed Texas Instruments acquisition adds a separate source of uncertainty alongside the operating business.