What EM Microelectronic does

EM Microelectronic-Marin SA is a Swiss semiconductor manufacturer founded in the 1970s and operating as a wholly-owned subsidiary of The Swatch Group Ltd. since 1985. Headquartered in Marin near Neuchâtel, the company designs and produces ultra-low power, low voltage integrated circuits (ICs) for battery-operated and field-powered applications, organized around six capability platforms: Energy (harvesting, power management, storage), Interfaces (custom displays, tactile, motion, sound), Sensing (sensor interfaces, optical sensors), Communication (RF, RFID, modules/beacons), Time (real-time clocks, watchmaking circuits), and Smart Processing (wearables, cryptography/security). The firm maintains an in-house semiconductor fab in Switzerland and back-end assembly in Thailand (via ETA Thailand subsidiary), with design centers in Prague and Colorado Springs.

The product portfolio spans three flagship families: em|bleu Bluetooth Low Energy SoCs (including the EM9305, the smallest Bluetooth 5.4 chip at 1.8x1.8mm WLCSP with 200nA deep sleep and PAwR/ESL Profile support), em|echo dual-frequency RAINFC chips combining NFC and RAIN RFID protocols in a single device, and em|aura RAIN RFID ICs with sensing and crypto extensions. The portfolio also includes microcontrollers, real-time clocks (EM3028), LCD drivers (EM6115), reset/watchdog supervisory circuits, energy harvesting controllers (EM8500 series), and finished module products including rugged beacons (EMBP01 with 10M+ units shipped). EM has shipped cumulatively over 500 million devices across product lines.

EM generates revenue through B2B sales of catalog ICs and modules via Digi-Key distribution, plus custom ASIC/ASSP development for OEM customers across automotive, IoT, traceability/logistics, watchmaking, industrial, healthcare, wearables, and white/brown goods segments. Pricing is quote-based and not publicly disclosed. The company employs 501-1,000 staff across nine regional sales offices (Switzerland, USA, Czech Republic, Hong Kong, Shanghai, Singapore, Tokyo, Shenzhen) and serves named enterprise customers including ABB, Longines, Tissot, Omega, Hamilton, and Tageos. Most revenue now originates from non-watchmaking markets despite the company's origin serving the Swatch Group watch brands.

Name

EM Microelectronic

Legal name

EM Microelectronic-Marin SA

Website

https://emmicroelectronic.com

Company type

Private

Founded year

1970

Operating status

Operating

Headcount range

501–1,000 employees

Short description

EM Microelectronic is a Swiss semiconductor manufacturer (Swatch Group subsidiary, founded 1970s) designing ultra-low power ICs and modules for Bluetooth LE, dual-frequency RAINFC/RFID, sensors, and energy harvesting, serving OEM customers across automotive, IoT, industrial, traceability, watchmaking, and wearables.

Ownership category

akta.pro rank

Product category

Semiconductor / Ultra-low power integrated circuits

NAICS

Other Electrical Equipment and Component Manufacturing (3359), Electrical Equipment Manufacturing (33531)

SIC

Electronic Components, Nec (3679), Electronic Components & Accessories (3670)

akta.pro primary industry

Analog & Mixed-Signal ICs (HDAHAAAD)

akta.pro secondary industries

RF, Microwave & Wireless ICs (HDAHAAAF), Power Management & Power ICs (HDAHAAAE), Power Management ICs (PMICs) (HDAHAIAA), Optoelectronics & Photonics (LED/Laser/Optical ICs) (HDAHAAAH)

Keywords

• Ultra-low power semiconductors
• RFID NFC integrated circuits
• Bluetooth Low Energy SoCs
• Custom ASIC development
• Energy harvesting ICs

Headquarters

HQ city

Marin

HQ country

Switzerland

HQ region

Europe

Offices9 records

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

Supply Chain, Technology or R&D, Infrastructure, Personnel, Marketing or Sales, Operations

Revenue model

1. Semiconductor IC Sales: EM Microelectronic generates revenue through the sale of ultra-low power integrated circuits including RFID chips, NFC tags, Bluetooth LE SoCs, microcontrollers, power management ICs, sensor interfaces, and timing circuits. Products are sold as standard catalog items and as custom ASICs/ASSPs designed for specific customer applications.
2. Electronic Modules and Beacons: Sale of electronic modules including Bluetooth beacons (EM-BC, EM-BT, EM-BP, EM-BQ, EM-XS), energy harvesting beacons, and custom modules combining multiple ICs. Modules are sold as finished products for IoT, smart factory, and logistics applications.
3. Custom ASIC Development: Custom application-specific integrated circuit development services for OEM manufacturers requiring tailored semiconductor solutions. Development from concept through mass production with in-house manufacturing capabilities.
4. Display Modules and Touch Solutions: Custom display modules including ultra-low power LCDs, OLED displays, and capacitive touch solutions manufactured in-house. Complete display stacks with optical bonding and coverlens integration.

Go-to-market motion2 records

Distribution channels9 records

Marketing channels5 records

Core offering

EM Microelectronic designs and manufactures ultra-low power, low voltage integrated circuits (ICs) and modules for battery-operated and field-powered applications. Core offerings include Bluetooth Low Energy SoCs (em|bleu), dual-frequency RAINFC/NFC transponder ICs (em|echo family), RAIN RFID sensor ICs (em|aura-sense), beacons, real-time clocks, microcontrollers, power management ICs, LCD drivers, and custom ASICs sold to OEM manufacturers across automotive, IoT, wearables, healthcare, industrial, and traceability markets.

Product overview

EM Microelectronic is a semiconductor manufacturer specializing in ultra-low power, low voltage integrated circuits (ICs) for battery-operated and field-powered applications. The product portfolio is organized around three core platforms: em|bleu (Bluetooth Low Energy SoCs including EM9304 and EM9305) for wireless connectivity in IoT and wearables; em|echo (including EM4423, EM4425, and em|echo-T) for dual-frequency RAINFC solutions combining NFC and RAIN RFID; and em|aura (including EM4152, EM4227, em|aura-air) for RAIN RFID with sensing and crypto capabilities. Additional products include NFC/HF ICs (EM4033, EM4094), LF animal/access ICs (EM4205/EM4305), proprietary RF transceivers (EM9209), microcontrollers, real-time clocks (EM3028), power management ICs (EM8500 series), LCD drivers (EM6115), and supervisory circuits. The company also offers module products including beacons (EMBC22, EMBP01, EMBT20, EM-BQ, EM-BC, EM-XS) and energy harvesting beacons. Founded in the 1970s and part of the Swatch Group since 1985, EM operates in-house semiconductor fabrication in Switzerland with design centers in Prague and Colorado Springs.

Differentiator

Problem solved

Functional benefit

Brands

• em|bleu (EM9305): Smallest Bluetooth Low Energy chip (v5.4) for ultra-low power connected devices
• em|echo
• em|echo-V
• em|echo-lock
• em|aura-sense (EM4152)
• em|aura-air
• em|linq

Products and services

• em|bleu (EM9305) Bluetooth Low Energy SoC Smallest Bluetooth Low Energy SoC (v5.4) featuring ultra-low power consumption with 200nA deep sleep, measuring 1.8x1.8mm in WLCSP23 package. Supports PAwR and ESL Profile for electronic shelf labels, Bluetooth 5.4 features including High Data Rate and Long Range. Targets IoT and wearable device OEMs.
• em|aura-sense (EM4152) RAIN RFID Sensor Transponder IC RAIN RFID sensor transponder IC combining capacitive sensing with RAIN RFID technology for smart manufacturing, predictive maintenance, and IoT applications. Features -18dBm sensing sensitivity, external sensor interface, 7-bit ADC, 2kbit user memory, ISO/IEC 18000-63 and EPC Gen2v2 compliant.
• em|echo (EM4423) Dual-Frequency RAINFC Transponder IC Dual-frequency RAINFC transponder IC combining NFC and RAIN RFID communication protocols in a single device with common memory and unique ID accessible through both protocols. World's first EPC Gen2v2-certified product.
• em|echo-V (EM4425) RAINFC Authenticity Transponder IC RAINFC authenticity transponder IC providing holistic omnichannel solution for product authentication and consumer engagement applications.
• em|echo-T Tamper-Evident Dual-Frequency RAINFC Transponder IC Tamper-evident dual-frequency RAINFC transponder IC for anti-tampering applications in supply chain and product security.
• em|echo-lock Secure Dual-Frequency RAIN+NFC Tag IC Secure dual-frequency RAIN+NFC tag IC for critical applications, expanding the em|echo family with dual-frequency capabilities for authentication and anti-tampering applications.
• em|aura-air Augmented RFID Transponder IC Augmented RFID transponder IC enabling battery-less IoT devices that draw energy from magnetic fields for industrial, healthcare, and smart home applications.
• em|aura-C (EM4227) RAIN RFID Crypto Transponder IC RAIN RFID crypto transponder IC with enhanced security features for authentication and supply chain applications.
• em|linq NFC Web Authentication IC NFC web authentication IC for scalable product authentication, enabling secure digital identity verification via smartphone.
• EM4124 EPC Gen2 / ISO 18000-63 UHF RFID IC Read/Write EPC Gen2 / ISO 18000-63 Type C passive UHF RFID IC for supply chain and logistics applications.
• EM4325 4kbit BAP RFID IC 4 kbit Read/Write passive or battery-assisted passive RFID IC supporting EPC Gen2, TOTAL / ISO 18000-63 and ISO 18000-64 (TOTAL) protocols.
• EM4033 NFC/HF Contactless Identification IC 64-bit read-only ISO/IEC 15693 standard compliant contactless identification NFC/high frequency IC.
• EM4094 13.56MHz Analog Front End IC 13.56MHz analog front end IC for RFID base stations, compliant with ISO 15693 and ISO 14443 A&B standards.
• EM4095 LF RFID Basestation Analog Front End 125KHz-134KHz read/write analog front end for RFID basestation applications.
• EM4205/EM4305 Low-Frequency Contactless Identification IC 512-bit read/write multi-purpose low-frequency contactless identification IC for animal identification and access control.
• EM9209 2.4GHz FSK Transceiver High sensitivity 1.5-72kbps 2.4GHz FSK transceiver for proprietary wireless protocols.
• EM9304 Bluetooth 4.2 Low Energy SoC Bluetooth 4.2 Low Energy SoC optimized for IoT, wearable, and smart electronics products with tiny form factor.
• EM3028 Ultra-Low Power Real-Time Clock Module Ultra-low power precision real-time clock module for green IoT applications, featuring extreme low power consumption and high accuracy timekeeping.
• EM1344 Analog Quartz Clock CMOS Circuit CMOS circuit for analog quartz clocks with bipolar stepping motor drive for timekeeping applications.
• EM6325 Ultra-Low Power Reset Circuit Ultra-low power reset circuit with manual reset, operating from 1.3V-4.6V in SOT23 package.
• EM6323/EM6324 Low Voltage Reset Circuit Low voltage reset circuit with manual reset and watchdog function, operating from 1.3V-4.6V in SOT23-5 package.
• EM6151 Low Power Windowed Watchdog Low power windowed watchdog with reset and sleep mode functions for system supervision.
• EM6115 LCD Driver and Controller LCD driver and controller with I2C and serial interfaces for ultra-low power display applications in smart metering and wearables.
• EM8500 Series Energy Harvesting PMU Controller PMU and DC energy harvesting controller ICs enabling battery-free designs powered by photovoltaic, thermoelectric, or kinetic energy sources for sustainable IoT devices.
• EMBC22 Bluetooth LE Proximity Beacon Module Bluetooth Low Energy V5.0 proximity beacon with integrated accelerometer, designed for asset tracking and industrial IoT applications.
• EMBP01 Ruggedized Bluetooth LE Beacon Module Ruggedized Bluetooth LE beacon with IP69 rating, operating up to 8 years on integrated battery. Designed for factory floor, warehouse, and construction environments with over 10 million units shipped.
• EMBT20 Tiny Bluetooth LE Beacon Module Tiny Bluetooth LE beacon in compact package with LED, button, and small battery for people tracking, hospitality, and high-value logistics applications.
• EM-BQ Multi-Mode Beacon Module Multi-mode beacon combining Bluetooth LE SoC with RFID chip for versatile tracking and identification in warehouse and factory environments.
• EM-BC Coin Beacon Module Coin beacon with two LEDs, push button, replaceable 2032 battery, optional temperature sensing and QR-code serial number for easy asset provisioning and tracking.
• EM-XS Card Format Beacon Platform Card format beacon platform customizable with Bluetooth LE and/or NFC, various buttons, fingerprint sensor, e-paper display, and recharging options for access cards, badges, and smart logistics tags.
• Energy Harvesting Beacon Module Battery-free beacon that harvests energy from surroundings using solar, thermal, or magnetic energy harvesting technologies for sustainable, perpetual operation.
• EOS-920 NFC Inlay (Tageos) NFC inlay with cryptographic security functions and compact 20mm antenna design, developed in partnership with Tageos for product authentication, supply chain transparency, and consumer engagement.
• EOS-620 Seal Dual-Frequency Inlay (Tageos) Dual-frequency HF/NFC and RAIN RFID inlay with anti-tamper detection, developed in partnership with Tageos for supply chain and authentication applications.

Quantifiable outcome

• Up to 34 years battery life on CR2032 in 10-second advertising period scenario
• +5 more outcomes

Named customers6 records

Segments8 records

Ideal customer profiles6 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature7 records

Partnerships

Two partnerships are on record, tiered core.

• TageoscoreStrategic or Co-development Partner · 1 November 2025Strategic partnership for development of RFID inlay products. Tageos developed EOS-920 NFC inlay and EOS-620 Seal dual-frequency inlay using EM Microelectronic chips (EM4332 NFC and EM4425). Products target product authentication, supply chain efficiency, and consumer engagement applications. Market partners ForgeStop and 4iD Solutions have already received significant customer interest.
• Digi-Key ElectronicscoreChannel Partner/ Reseller/ DistributorPrimary distribution partner for catalog products including EM9305 SoC, EM9305 Bluetooth Module, and EM9305 SoC DVK. Digi-Key handles online purchasing and fulfillment for standard ICs and development kits.

Scale indicators5 records

Recent moves6 records

Expansion highlights6 records

Direct peers

• STMicroelectronics: Competes in low-power MCUs (STM32 family), NFC/RFID, power management, and automotive secure access ICs. ST's broad portfolio overlaps with EM's BLE, RFID, automotive, and industrial product lines.
• ams OSRAM: Competes in optical sensor ICs, analog/mixed-signal ICs, and photonics-to-information circuitry. EM's optical sensors (used in gaming mice and industrial sensing) overlap with ams OSRAM's sensor and IC portfolio.
• Texas Instruments: Competes with EM in low-power MCUs, BLE SoCs (CC2640/CC27xx), and power management ICs. TI's SimpleLink and energy-harvesting portfolios target the same IoT, industrial, and wearable sockets where EM's BLE and PMIC products compete.
• Nordic Semiconductor: Direct competitor in ultra-low power Bluetooth LE SoCs for IoT, wearables, and asset tracking. EM's em|bleu family competes head-to-head with Nordic's nRF52/nRF53/nRF54 series on power efficiency, form factor, and ESL/beacon design wins.
• Impinj: Direct competitor in RAIN RFID ICs and reader chips for retail, logistics, and asset tracking. Impinj's M700/M800 series competes with EM's EM4124, EM4325, and em|echo family in enterprise RFID deployments.
• Silicon Labs (now part of Skyworks): Direct competitor in Bluetooth LE SoCs (EFR32/BG22/BG24 families) and ultra-low power MCUs for IoT, smart home, and industrial applications. Silicon Labs is named as a benchmark competitor in EM's BlueJoule energy-efficiency results.
• NXP Semiconductors: Competes with EM in NFC and RFID ICs (NXP NTAG, MIFARE, UCODE families) and automotive secure access. NXP is the dominant NFC/RFID supplier, and EM's dual-frequency em|echo family is positioned as a differentiated alternative for supply chain and authentication.

Broad incumbents

• Infineon Technologies: Large incumbent semiconductor supplier competing in power management, automotive secure access (keyless go/immobilizers), and RFID. EM's automotive access business is positioned against Infineon's broader automotive portfolio.
• Renesas Electronics: Broad semiconductor incumbent competing in low-power MCUs (RA family), power management, and analog/mixed-signal ICs for IoT and industrial markets. Overlaps with EM's microcontroller and ultra-low power IC product lines.
• Microchip Technology: Competes in low-power PIC and AVR microcontrollers, real-time clocks, and mixed-signal ICs for embedded and IoT applications. EM's EM3028 RTC and microcontroller products are positioned against Microchip's broader MCU and timing portfolio.

Market position

Strengths5 records

Weaknesses4 records

Competitive moat5 records

Key risks5 records

Key highlights7 records

Customer concentration

• LinkedInlinkedin.com/company/37418

Compliance4 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles1 record

Subsidiaries1 record

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about EM Microelectronic