WIZnet
WIZnet is a South Korean semiconductor company that designs hardwired TCP/IP Ethernet controller chips, integrated MCU+networking chips, modules, and Raspberry Pi-compatible evaluation boards for industrial IoT, consumer IoT, and maker markets, sold globally through tier-1 distributors and regional e-stores.
- Company typePrivate
- Founded1998
- HeadquartersSeongnam, South Korea
- Headcount101–250
- GTM typeB2B
- OfferingHardware or Manufacturing
What WIZnet does
WIZnet Co., Ltd. is a privately held South Korean semiconductor company founded in 1998, headquartered in Seoul with operations spanning North America, Europe, and Asia Pacific through regional e-stores. The company specializes in hardwired TCP/IP Ethernet connectivity silicon, embedding the complete protocol stack (TCP, UDP, IPv4, IPv6, ICMP, IGMP, ARP, PPPoE) directly in silicon rather than implementing it in software. This architectural approach delivers deterministic network performance and reduces microcontroller overhead for embedded IoT devices. The product portfolio spans four categories: Ethernet controller chips (W5100, W5100S, W5300, W5500, W6100, W6300), MCU chips with integrated networking (W7500, W7500P, W55RP20/ioNIC, W55MH32), pre-certified modules (Ethernet, serial-to-Ethernet, Wi-Fi, PoE), and Raspberry Pi RP2040/RP2350-based evaluation boards.
WIZnet sells primarily through a hybrid distribution model. Global tier-1 electronic component distributors — Mouser, Digi-Key, Arrow, Future Electronics, and AVNET — handle the bulk of enterprise and SMB volume, supplemented by regional specialists (TME, SOS Electronic, SparkFun, Chip One Stop) and four company-operated e-stores (US, EU, Asia, Korea). Custom firmware development for the W55RP20 chip is sold directly via the WIZnet Direct service. Target customer segments span industrial IoT (factory automation, PLC connectivity, building automation), consumer IoT (smart home devices, gateways), embedded systems OEMs, and the maker/hobbyist community, the latter cultivated through GitHub repositories, a dedicated maker forum, annual IoT design contests since 2019, and deep co-development with the Raspberry Pi platform. The company maintains an active community generating 150+ new projects (UCC and VAR) monthly and has been featured in the Raspberry Pi 2025 Report and nominated for Best-in-Show at embedded world 2026. AWS IoT Core qualification for W5100S-EVB-Pico and W5500-EVB-Pico2, alongside Azure IoT integration, positions the platform within major hyperscaler IoT ecosystems.
WIZnet firmographics
Firmographics- Name
- WIZnet
- Legal name
- WIZnet Co., Ltd.
- Website
- https://wiznet.io
- Company type
- Private
- Founded year
- 1998
- Operating status
- Operating
- Headcount range
- 101–250 employees
- Short description
- WIZnet is a South Korean semiconductor company that designs hardwired TCP/IP Ethernet controller chips, integrated MCU+networking chips, modules, and Raspberry Pi-compatible evaluation boards for industrial IoT, consumer IoT, and maker markets, sold globally through tier-1 distributors and regional e-stores.
- Ownership category
- akta.pro rank
WIZnet industry classification
Industry- Product category
- Embedded Networking Semiconductors
- NAICS
- Other Communications Equipment Manufacturing (33429)
- SIC
- Computer Communications Equipment (3576)
- akta.pro primary industry
- Mobile & Wireless Connectivity SoCs (Modem/Wi‑Fi/Bluetooth/GNSS) (HDAHABAA)
- akta.pro secondary industries
- Network Adapters (Ethernet/Wi‑Fi/Bluetooth) (HDACAHAG), Wireless Interface Adapters (Wi‑Fi/Bluetooth/Cellular Modems) (HDAFAEAJ), Unmanaged Industrial Ethernet Switches (HDAFAJAB)
Keywords
Where WIZnet is headquartered
LocationHeadquarters
- HQ city
- Seongnam
- HQ country
- South Korea
- HQ region
- Asia
Offices1 record
Markets served
WIZnet business model
Business model- GTM type
- B2B
- Offering type
- Hardware or Manufacturing
- Cost components
- Technology or R&D, Supply Chain, Personnel, Operations, Marketing or Sales, Infrastructure
Revenue model
- Ethernet Controller Chips: Sale of hardwired TCP/IP Ethernet controller chips including W6300, W6100, W5500, W5300, W5100S, and W5100 models with varying performance levels and protocol support
- Ethernet and Wi-Fi Modules: Pre-certified network modules integrating Ethernet chips with RJ45 connectors, transformers, and in some cases wireless capabilities for rapid embedded system development
- Serial-to-Ethernet Modules: Protocol converter modules enabling legacy serial devices to connect to Ethernet networks, including WIZ750SR series, W5500S2E series, and W232N
- Evaluation Boards and Development Kits: microcontroller evaluation boards combining Raspberry Pi RP2040/RP2350 microcontrollers with WIZnet Ethernet controllers for prototyping and development
- Open-Source Hardware: Open-source hardware products including WIZnet Ethernet HAT compatible with Raspberry Pi Pico, and PoE (Power over Ethernet) modules
- Custom Firmware Services: Custom firmware development and customization services for W55RP20 chip through WIZnet Direct, enabling tailored solutions for specific applications
Go-to-market motion3 records
Distribution channels14 records
Marketing channels7 records
WIZnet product offering
Product offeringCore offering
WIZnet designs, manufactures, and sells hardwired TCP/IP Ethernet controller chips, integrated MCU chips with embedded networking, Ethernet modules, serial-to-Ethernet protocol converters, and Wi-Fi modules for embedded systems and IoT devices. The company also offers Power over Ethernet modules, Raspberry Pi-compatible evaluation boards, and custom firmware development services through WIZnet Direct.
Product overview
WIZnet offers a comprehensive portfolio of Internet connectivity solutions centered on their proprietary hardwired TCP/IP technology. The product line spans five main categories: MCU Chips (W55RP20/ioNIC, W55MH32, W7500, W7500P) that integrate networking capabilities directly into microcontrollers; Ethernet Chips (W6300, W6100, W5500, W5300, W5100S, W5100) providing dedicated Ethernet connectivity controllers with varying performance levels and IPv4/IPv6 support; Ethernet Modules (WIZ630io, WIZ610io, W5500-io, WIZ850io, WIZ-IP55, WIZ810Sio, and others) offering plug-and-play network modules with integrated magnetics and connectors; Serial-to-Ethernet Modules (WIZ750SR-T1L, WIZ500SR-RP, WIZ505SR-RP, W232N, WIZ-DTU) that enable legacy serial devices to connect to Ethernet networks; and Wi-Fi Modules (WizFi630S, WizFi360) providing wireless connectivity options. Additionally, WIZnet provides Power over Ethernet modules (WIZPoE-P1, WIZPoDL-P1, WIZnet Pico PoE), Evaluation Boards for rapid prototyping (EVB-Pico and EVB-Pico2 series compatible with Raspberry Pi RP2040 and RP2350), and custom firmware development services through WIZnet Direct.
Differentiator
Problem solved
Functional benefit
Products and services
- W6300 Ethernet Controller Chip High-performance 10/100 TOE Ethernet controller chip with dual IPv4/IPv6 hardware stack, integrated Ethernet MAC and PHY, QSPI interface, and 150MHz system clock, designed for embedded systems requiring deterministic network performance.
- W6100 Ethernet Controller Chip Advanced Ethernet controller supporting IPv4/IPv6 dual stack with 8 independent sockets, 32KB memory, SOCKET-less commands for network management, and PIN-2-PIN compatibility with W5100S.
- W5500 Ethernet Controller Chip Hardwired TCP/IP Ethernet controller with integrated full protocol stack, 10/100 Ethernet MAC and PHY, high-speed SPI interface at up to 80MHz, 8 sockets, and 32KB internal memory, enabling plug-and-play Internet connectivity for embedded devices.
- W5300 Ethernet Controller Chip
- W5100S Ethernet Controller Chip
- W55RP20 ioNIC MCU Chip
Quantifiable outcome
- Network performance up to 90Mbps with W6300 chip
- +2 more outcomes
Companies that use WIZnet
Customer profileNamed customers3 records
Segments4 records
Ideal customer profiles4 records
WIZnet technology and API
TechnologyTechnology focussed Yes
API detail
- Has API
- No
- API docs
- API detail
Core technology
AI maturity
App detail
Integration5 records
Feature7 records
WIZnet partnerships and signals
Strategic signalPartnerships
13 partnerships are on record, tiered regional, core and minor.
- Chip One StopregionalOfficial distributor partnership announced for Japanese market, designating Chip One Stop as WIZnet's official distributor in Japan for electronic components
- Future ElectronicscoreGlobal authorized distributor of WIZnet products offering design-in support and technical sales assistance to customers worldwide
- Mouser ElectronicscoreGlobal authorized distributor providing same-day shipping of WIZnet Ethernet controllers, modules, and evaluation boards to individual buyers and small businesses
- Digi-Key ElectronicscoreGlobal authorized distributor offering online ordering and fulfillment of WIZnet products to customers worldwide
- Arrow ElectronicscoreGlobal authorized distributor providing design-in support, supply chain solutions, and enterprise-level services for WIZnet products
- AVNETcoreGlobal authorized distributor providing supply chain services and design support for WIZnet embedded networking solutions
- TME (Transfer Multisort Elektronik)minorEuropean distributor serving Eastern European markets with WIZnet products
- SOS ElectronicminorRegional European distributor for WIZnet products serving Central and Eastern European customers
- SparkFun ElectronicsminorReseller of WIZnet products targeting makers and hobbyist market segment
- Chip1stopminorGlobal distributor of WIZnet products with focus on Japanese and Asian markets
- Raspberry PicoreStrategic partnership with Raspberry Pi Foundation for development boards. WIZnet Ethernet controllers integrated with RP2040 and RP2350 microcontrollers. Featured in Raspberry Pi 2025 Report as key growth driver. EVB-Pico boards work identically to Raspberry Pi Pico boards with additional Ethernet functionality.
- ArduinominorOpen-source hardware movement collaboration enabling WIZnet products to work with Arduino platforms and development ecosystem
- MbedminorOpen-source hardware movement collaboration supporting Mbed development platform with WIZnet Ethernet connectivity solutions
Scale indicators4 records
Recent moves6 records
Expansion highlights5 records
WIZnet competitors and assessment
Company assessmentBroad incumbents
- Texas Instruments: TI's broad semiconductor portfolio includes MSP432/SimpleLink Ethernet connectivity parts and PHY/transceiver devices that compete with WIZnet chips at the high end of industrial and automotive designs.
- STMicroelectronics: ST's STM32 family paired with external Ethernet PHYs and its own connectivity SoCs targets the same embedded and industrial customers that WIZnet serves with the W5500 and W7500 lines.
- NXP Semiconductors: NXP offers integrated MCU + Ethernet solutions (LPC, i.MX RT) targeting industrial automation and IoT, overlapping with WIZnet's industrial IoT customer base but with a much broader portfolio.
- Renesas Electronics: Renesas' RX and RA MCU families with integrated Ethernet MAC/PHY serve industrial automation customers that also evaluate WIZnet solutions for factory and energy applications.
- Silicon Labs (now Skyworks-owned): Silicon Labs' EFR32/EFM32 with integrated Wi-Fi and Bluetooth SoCs competes for the same low-power IoT design wins as WIZnet's WizFi modules, especially in maker and consumer IoT.
Direct peers
- Davicom Semiconductor: Davicom specializes in Ethernet controller and PHY semiconductors (DM9000, DM9051) and competes with WIZnet for embedded networking sockets in industrial and IoT applications.
- Realtek Semiconductor: Realtek ships the RTL8152/RTL8211 Ethernet controllers and integrated networking chips widely used in embedded and IoT designs, overlapping directly with WIZnet's Ethernet controller portfolio.
- Espressif Systems: Espressif's ESP32 family integrates Wi-Fi/Bluetooth and TCP/IP directly onto MCU cores, targeting the same IoT/maker and embedded developer base that WIZnet serves with its Ethernet and Wi-Fi modules.
- ASIX Electronics: ASIX is a Taiwanese fabless vendor of embedded Ethernet controllers (AX88796, AX88178) and USB-to-Ethernet devices with nearly identical product positioning to WIZnet in the embedded networking niche.
- Microchip Technology: Microchip manufactures the ENC28J60 and LAN8720A Ethernet controllers plus integrated MCU + Ethernet families that most directly compete with WIZnet's W5500/W6100/W5100S chips in the embedded networking market.
Market position
Strengths5 records
Weaknesses5 records
Competitive moat5 records
Key risks6 records
Key highlights7 records
Customer concentration
WIZnet social profiles
Digital presenceWIZnet compliance and trust
Trust signalCompliance10 records
WIZnet financial estimates
Financial estimateRevenue estimate
Valuation estimate
WIZnet leadership team
Management profileNumber of profiles
Profiles4 records
WIZnet funding detail
Funding detailFunding overview
Funding rounds
Investors
Funding detail is available on the Subscription and Enterprise plan.Contact sales →
WIZnet M&A and investment
M&A and investmentM&A
Investments
M&A and investment is available on the Subscription and Enterprise plan.Contact sales →
Frequently asked questions about WIZnet
What does WIZnet do?
WIZnet designs, manufactures, and sells hardwired TCP/IP Ethernet controller chips, integrated MCU chips with embedded networking, Ethernet modules, serial-to-Ethernet protocol converters, and Wi-Fi modules for embedded systems and IoT devices. The company also offers Power over Ethernet modules, Raspberry Pi-compatible evaluation boards, and custom firmware development services through WIZnet Direct.
Is WIZnet a public or private company?
WIZnet is a private company. It is classified as founder individual operated bootstrapped and is currently operating.
When was WIZnet founded?
WIZnet was founded in 1998. It employs 101 to 250 people.
Where is WIZnet based?
WIZnet is headquartered in Seongnam, South Korea, in the Asia region.
How does WIZnet make money?
Six revenue lines are on record. Ethernet Controller Chips are the primary driver. The others are ethernet and Wi-Fi Modules, serial-to-Ethernet Modules, evaluation Boards and Development Kits, open-Source Hardware and custom Firmware Services.
Who are WIZnet's main competitors?
Broad incumbents on record are Texas Instruments, STMicroelectronics, NXP Semiconductors, Renesas Electronics and Silicon Labs (now Skyworks-owned). Direct peers are Davicom Semiconductor, Realtek Semiconductor, Espressif Systems, ASIX Electronics and Microchip Technology.
Does WIZnet have an API?
No public API is recorded for WIZnet.
What industry is WIZnet in?
WIZnet's product category is Embedded Networking Semiconductors. Its primary akta.pro industry code is HDAHABAA, Mobile & Wireless Connectivity SoCs (Modem/Wi‑Fi/Bluetooth/GNSS), with a secondary code of HDACAHAG, Network Adapters (Ethernet/Wi‑Fi/Bluetooth). Its NAICS code is 33429 and its SIC code is 3576.