Intersil
Intersil, founded in 1967 and now a wholly-owned subsidiary brand of Renesas Electronics, designs radiation-hardened integrated circuits for space and harsh environment applications, including NASA's Artemis II mission. The broader Renesas portfolio spans microcontrollers, analog, power management, and connectivity semiconductors across automotive, industrial, consumer, communications, and aerospace segments.
- Company typePublic
- Founded1967
- HeadquartersMilpitas, United States
- Headcount501–1,000
- GTM typeB2B
- OfferingHardware or Manufacturing
What Intersil does
Intersil Corporation was founded in 1967 in Milpitas, California as a designer and manufacturer of analog integrated circuits. In 2017 it was acquired by Renesas Electronics Corporation for approximately $3.2 billion and now operates as a wholly-owned subsidiary brand of Renesas, with the Intersil name retained primarily for its radiation-hardened IC product line serving space and harsh environment applications; those rad-hard ICs have been integrated into key avionics and safety subsystems on NASA's Artemis II crewed lunar mission. The standalone Intersil entity no longer operates independently.
Under the Renesas umbrella the portfolio has expanded well beyond Intersil's original analog focus. Renesas (and the retained Intersil brand) now offers microcontrollers (RA Arm Cortex-M, RL78 8/16-bit, RX 32-bit, RH850 automotive, RISC-V, and the Synergy Platform), microprocessors (RZ 32/64-bit), amplifiers, data converters, power management ICs, GaN power devices, interface products, memory and logic, switches and multiplexers, wireless connectivity, and radiation-hardened space/harsh-environment ICs. These are sold individually and bundled as "Winning Combinations"—integrated solutions combining digital, analog, power, and connectivity semiconductors with software tools such as Renesas 365, QuickConnect Platform, Timing Commander, and PowerNavigator. Recent product activity includes GaN Bi-Directional Switches (TP65B110Hru) for AI infrastructure and energy storage, new motor-control and ultra-low-power MCUs, NFC controllers, lighting controllers, and operational amplifiers.
The business model is hardware sales through a sales-led, multi-channel distribution structure: direct sales from Renesas, a global sales and distributor directory, and a free sample program targeting engineers. Customer segments span automotive (ADAS, E-Mobility, EV/HEV, infotainment, vehicle control), industrial (automation, robotics, renewable energy, medical, motor drives, building automation), consumer electronics (cameras, computing, connected home, wearables, power adapters), communications infrastructure (cloud, networking, wireless), and space/aerospace (avionics, safety subsystems). Pricing is quote-based and not publicly disclosed. Renesas reported annual revenue of ¥1,321,212m with a net loss of ¥51,763m, making it one of the top three analog/mixed-signal semiconductor players globally.
Intersil firmographics
Firmographics- Name
- Intersil
- Legal name
- Renesas Electronics Corporation
- Website
- http://www.intersil.com
- Company type
- Public
- Founded year
- 1967
- Operating status
- Operating
- Headcount range
- 501–1,000 employees
- Short description
- Intersil, founded in 1967 and now a wholly-owned subsidiary brand of Renesas Electronics, designs radiation-hardened integrated circuits for space and harsh environment applications, including NASA's Artemis II mission. The broader Renesas portfolio spans microcontrollers, analog, power management, and connectivity semiconductors across automotive, industrial, consumer, communications, and aerospace segments.
- Ownership category
- akta.pro rank
Intersil industry classification
Industry- Product category
- Analog Integrated Circuits (Semiconductors)
- NAICS
- Semiconductor and Related Device Manufacturing (334413)
- SIC
- Electronic Components, Nec (3679)
- akta.pro primary industry
- Analog & Mixed-Signal ICs (HDAHAAAD)
- akta.pro secondary industries
- Amplifiers & Comparators (HDAHAIAC), High-Voltage, Power Discretes & Modules (IGBT/MOSFET/SiC/GaN) (HDAHAAAK), Wide-Bandgap Power Devices (SiC/GaN Discretes) (HDAHAHAG), Interface ICs (USB/HDMI/SerDes/Level Shifters) (HDAHAIAD)
Keywords
Where Intersil is headquartered
LocationHeadquarters
- HQ city
- Milpitas
- HQ country
- United States
- HQ region
- North America
Markets served
Intersil business model
Business model- GTM type
- B2B
- Offering type
- Hardware or Manufacturing
- Cost components
- Technology or R&D, Supply Chain, Operations, Personnel, Marketing or Sales
Revenue model
- Semiconductor Products: Renesas generates revenue from selling comprehensive semiconductor solutions including microcontrollers, microprocessors, analog semiconductors, power management ICs, and specialized ICs. Annual revenue stands at ¥1,321,212m.
Go-to-market motion1 record
Distribution channels3 records
Marketing channels5 records
Intersil product offering
Product offeringCore offering
Intersil designs, manufactures, and markets analog integrated circuits, including radiation-hardened ICs for space and harsh environments, operational amplifiers, data converters, and power management devices. As a wholly-owned subsidiary brand of Renesas Electronics since 2017, its products are integrated into bundled "Winning Combinations" semiconductor solutions that combine analog, power, and connectivity ICs with software tools for automotive, industrial, communications, consumer electronics, and aerospace applications.
Product overview
Renesas Electronics (parent company of Intersil since 2017) offers a comprehensive semiconductor portfolio organized around the 'Winning Combinations' platform strategy, combining digital, analog, power, and connectivity semiconductors with software tools. The core product family includes multiple microcontroller and microprocessor lines: RA Arm Cortex-M MCUs, RZ 32/64-bit MPUs, RL78 low-power 8/16-bit MCUs, RX 32-bit performance/efficiency MCUs, RISC-V 32/64-bit MCUs & MPUs, RH850 automotive MCUs, and the Renesas Synergy Platform. Analog offerings encompass amplifiers and data converters, while power management includes GaN-based solutions. Intersil's radiation-hardened ICs for space and harsh environments are integrated into this portfolio. Recent new products include GaN power devices (TP65B110Hru, TP70H135G4PLSGB, RRW22125), NFC controllers (PTX205R), motor control MCUs (RX14T), general-purpose MCUs (RA0E3), lighting controllers (iW3701), and operational amplifiers (RRA79044, ISL28233A).
Differentiator
Problem solved
Functional benefit
Products and services
- Intersil Radiation-Hardened ICs
Quantifiable outcome
- Strong recent share price performance of 16.95% over 7 days and 59.16% over the past year
Companies that use Intersil
Customer profileNamed customers2 records
Segments5 records
Ideal customer profiles2 records
Intersil technology and API
TechnologyTechnology focussed Yes
API detail
- Has API
- No
- API docs
- API detail
Core technology
AI maturity
App detail
Feature4 records
Intersil partnerships and signals
Strategic signalPartnerships
Four partnerships are on record, tiered core.
- AltiumcoreRenesas acquired Altium in 2024, adding electronics design software capabilities to its offerings.
- Dialog SemiconductorcoreRenesas acquired Dialog Semiconductor in 2021 for $5.9 billion, adding low-power wireless, mixed-signal, and power management ICs to its portfolio.
- IDTcoreRenesas acquired IDT (Integrated Device Technology) in 2019, expanding its semiconductor portfolio with timing, memory interface, and wireless power solutions.
- IntersilcoreRenesas acquired Intersil in 2017 for approximately $3.2 billion. Intersil provides radiation-hardened ICs that are now integrated into key aerospace applications including NASA's Artemis II mission.
Scale indicators4 records
Recent moves6 records
Expansion highlights6 records
Intersil competitors and assessment
Company assessmentBroad incumbents
- STMicroelectronics: Major analog/mixed-signal and power semiconductor supplier competing with Intersil across automotive, industrial, and consumer amplifiers/power management, with particular strength in Europe.
- Infineon Technologies: Top-three analog/mixed-signal player and power semiconductor leader. Directly competes with Intersil's GaN and power management products, especially in automotive and industrial GaN applications.
- Texas Instruments: Largest analog/mixed-signal IC manufacturer with extensive amplifier, data converter, and power portfolios. Competes head-to-head with Intersil across nearly all analog product lines and leads the market with in-house 300mm fab capacity.
- NXP Semiconductors: Automotive and industrial semiconductor leader with broad analog/mixed-signal portfolio. Competes with Intersil/Renesas in automotive ADAS, EV/HEV, and secure connectivity silicon.
Emerging players
- Monolithic Power Systems (MPS): High-performance analog and power management IC specialist competing with Intersil's power management portfolio, particularly in DC/DC converters and integrated power solutions for industrial and AI infrastructure.
- Diodes Incorporated: Analog and discrete semiconductor supplier with product overlap in amplifiers, power management, and signal conditioning for industrial, computing, and consumer markets where Intersil competes.
Others
- Renesas Electronics (parent context): Parent company of Intersil since 2017; not a peer in the competitive sense but the broader portfolio context in which Intersil's analog products are sold and bundled via the Winning Combinations platform.
Direct peers
- Analog Devices: Premier analog/mixed-signal IC specialist with leadership in amplifiers, data converters, and high-performance signal chain. Closest direct competitor to Intersil in precision analog, with strong overlap in industrial and aerospace customers.
- Microchip Technology: MCU and analog/mixed-signal IC supplier with overlapping amplifier, power management, and interface product lines serving the same industrial, automotive, and aerospace customers as Intersil.
- ON Semiconductor (onsemi): Analog/mixed-signal and power semiconductor competitor with strong overlap in power management, signal conditioning, and SiC/GaN discretes targeting automotive and industrial applications.
Market position
Strengths5 records
Weaknesses5 records
Competitive moat5 records
Key risks6 records
Key highlights6 records
Customer concentration
Intersil social profiles
Digital presenceIntersil financial estimates
Financial estimateRevenue estimate
Valuation estimate
Intersil leadership team
Management profileNumber of profiles
Profiles2 records
Intersil subsidiaries and ownership
Company hierarchySubsidiaries1 record
Intersil funding detail
Funding detailFunding overview
Funding rounds
Investors
Funding detail is available on the Subscription and Enterprise plan.Contact sales →
Intersil M&A and investment
M&A and investmentM&A11 records
Investments1 record
M&A and investment is available on the Subscription and Enterprise plan.Contact sales →
Frequently asked questions about Intersil
What does Intersil do?
Intersil designs, manufactures, and markets analog integrated circuits, including radiation-hardened ICs for space and harsh environments, operational amplifiers, data converters, and power management devices. As a wholly-owned subsidiary brand of Renesas Electronics since 2017, its products are integrated into bundled "Winning Combinations" semiconductor solutions that combine analog, power, and connectivity ICs with software tools for automotive, industrial, communications, consumer electronics, and aerospace applications.
Is Intersil a public or private company?
Intersil is a public company. It is classified as corporate owned and is currently operating.
When was Intersil founded?
Intersil was founded in 1967. It employs 501 to 1,000 people.
Where is Intersil based?
Intersil is headquartered in Milpitas, United States, in the North America region.
How does Intersil make money?
One revenue line is on record: semiconductor Products.
Who are Intersil's main competitors?
Broad incumbents on record are STMicroelectronics, Infineon Technologies, Texas Instruments and NXP Semiconductors. Emerging players are Monolithic Power Systems (MPS) and Diodes Incorporated. Renesas Electronics (parent context) is listed as an others. Direct peers are Analog Devices, Microchip Technology and ON Semiconductor (onsemi).
Does Intersil have an API?
No public API is recorded for Intersil.
What industry is Intersil in?
Intersil's product category is Analog Integrated Circuits (Semiconductors). Its primary akta.pro industry code is HDAHAAAD, Analog & Mixed-Signal ICs, with a secondary code of HDAHAIAC, Amplifiers & Comparators. Its NAICS code is 334413 and its SIC code is 3679.