What LINEEYE Co. does

LINEEYE CO.,LTD. is a privately held Japanese manufacturer specializing in communication protocol analysis and measurement instruments, headquartered in Nagahama City, Shiga Prefecture. The company develops hardware that monitors, logs, and decodes serial, automotive, and industrial bus communications — supporting RS-232C, RS-422, RS-485, TTL/UART, CAN, CAN FD, LIN, CXPI, I2C, SPI, Modbus, HDLC/SDLC/X.25, USB 2.0, and EtherCAT — alongside interface converters (SI series) for serial-to-LAN bridging, LAN-connected digital and analog I/O units (LANIO series) including sub-gigahertz (920MHz) and dual-band Wi-Fi variants, and analog signal loggers/generators (LE-910R/918R/928R/930R/940R). Its multi-protocol flagship analyzers (LE-8500X/8600X, LE-3500XR/2500XR, LE-8200A, LE-110SA) combine standalone operation with PC-linked software (LE-PC300R) and a Python SDK (laniopy); a patent-pending super-capacitor-based instant power-failure backup control system protects logged data on SD cards.

The company serves industrial automation, automotive electronics, and medical equipment engineering teams that require bus-level debugging, long-term data logging, protocol compliance verification, and remote equipment monitoring. Distribution is almost entirely domestic: sales run through an authorized-dealer (特約販売店) network supplemented by a direct e-commerce shop, with demand generation concentrated at industry exhibitions (JECA FAIR, EdgeTech+, Kyoto Business Exchange Fair, Auto Motiv World). Revenue comes from hardware unit sales (¥33,000–¥100,000+ per device), bundled and optional PC-link / utility software, paid inspection and repair services (¥33,000–¥45,000 with 5-year post-discontinuation repair support), and accessories/expansion boards (OP-SB series for CAN/LIN/I2C/SPI/EtherCAT measurement). The firm is bootstrapped — no parent, no funding rounds, no disclosed M&A — and produces a steady cadence of new and updated products each year, with firmware and hardware releases documented from at least 2024 through June 2026.

Name

LINEEYE Co.

Legal name

株式会社ラインアイ (LINEEYE CO.,LTD.)

Website

https://lineeye.co.jp

Company type

Private

Founded year

2000

Operating status

Operating

Headcount range

51–100 employees

Short description

LINEEYE is a privately held Japanese manufacturer of communication protocol analyzers, serial-to-LAN interface converters, and LAN-connected I/O units serving industrial automation, automotive electronics, and medical equipment engineering teams, sold primarily through Japanese authorized dealers.

Ownership category

akta.pro rank

Product category

Communication Test and Measurement Equipment

NAICS

Instrument Manufacturing for Measuring and Testing Electricity and Electrical Signals (334515), Other Communications Equipment Manufacturing (33429), Navigational, Measuring, Electromedical, and Control Instruments Manufacturing (33451)

SIC

Instruments For Meas & Testing Of Electricity & Elec Signals (3825), Communications Equipment, Nec (3669), Industrial Instruments For Measurement, Display, And Control (3823)

akta.pro primary industry

Connectors, Jacks & Couplers (RJ45/LC/SC/MPO/MTP) (HDAFALAD)

akta.pro secondary industry

Wireless Interface Adapters (Wi‑Fi/Bluetooth/Cellular Modems) (HDAFAEAJ)

Keywords

• Protocol analyzers
• Serial communication test
• Interface converters
• LAN I/O units
• Automotive communication testing

Headquarters

HQ city

Kyoto

HQ country

Japan

HQ region

Asia

Offices2 records

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

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

Revenue model

1. Hardware Products: Protocol analyzers, interface converters, LAN-connected IO units, and analog measurement instruments sold as physical devices with various price points (33,000 yen to over 100,000 yen per unit).
2. Software Licenses: PC link software (LE-PC300R, LE-PC800X) and utility software for remote control and data analysis. Light versions available for free with limited functionality.
3. Repair and Inspection Services: Paid inspection (33,000-45,000 yen) and repair services for products, with 1-2 year maintenance recommendations. Products repaired for up to 5 years after discontinuation.
4. Options and Accessories: Expansion boards, cables, SD cards, probes, terminal adapters, and carrying cases sold as add-on products.

Pricing tiers

Go-to-market motion1 record

Distribution channels2 records

Marketing channels4 records

Core offering

LINEEYE designs, manufactures, and sells communication protocol analysis and measurement instruments, including portable and PC-connected protocol analyzers for serial (RS-232C/RS-422/RS-485), USB, CAN/CAN FD/LIN, and Ethernet protocols. The portfolio also includes serial-to-LAN interface converters (including wireless variants), LAN-connected digital and analog I/O units, analog measurement instruments, Modbus gateways, and custom embedded development services. Products serve industrial automation, automotive electronics development, medical equipment, and IoT/remote monitoring applications.

Product overview

LINEEYE Co. is a Japanese manufacturer specializing in communication measurement and analysis equipment. The product portfolio centers on protocol analyzers for monitoring and analyzing serial (RS-232C/RS-422/RS-485), USB, CAN/CAN-FD/LIN, and Ethernet communications. The offering includes standalone portable analyzers (LE-8500X/8600X, LE-8200A, LE-3500XR/2500XR, LE-110SA series), PC-connected analyzers with data logger capability (LE-200PF/150PF, LE-270GF/270AF), and USB protocol analyzers (LE-650H2). Supporting the analyzers are interface converters (SI series) for serial-to-LAN conversion, including wireless (Wi-Fi and sub-gigahertz) models, and Modbus gateways. LANIO series provides LAN-connected digital and analog I/O units for remote monitoring and control. The ecosystem includes expansion boards (OP-SB series) for CAN/LIN/I2C/SPI/EtherCAT measurement, software tools including PC link software (LE-PC300R), Python libraries (laniopy), and custom embedded system development services.

Differentiator

Problem solved

Functional benefit

Brands

• LANIO: LAN-connected IO unit product line for digital and analog input/output control
• LE Series
• SI Series

Products and services

• LE-8500X / LE-8600X Series Multi-Protocol Analyzer Multi-protocol analyzer with color display for standalone field use. Supports RS-232C/RS-422/RS-485, USB, and optional LAN/CAN/LIN measurement with firmware updates released on a regular cadence.
• LE-8200A / LE-8200 Portable Protocol Analyzer Portable protocol analyzer with large color LCD and battery operation for standalone field deployment. Supports RS-232C, RS-422, RS-485 with protocol translation display and statistical analysis features.
• LE-3500XR / LE-2500XR Series Multi-Protocol Analyzer Touch panel color LCD portable protocol analyzer supporting RS-232C, RS-422/485, TTL/UART, I2C, and SPI. Includes simulation and BERT functions; V2 models add analog measurement capability.
• LE-110SA / LE-120SA Compact Line Monitor Compact entry-level line monitor with touch panel color LCD. Supports RS-232C and RS-422/RS-485 up to 921.6Kbps with approximately 5 hours battery operation.
• LE-200PF / LE-150PF PC-Connected Analyzer and Data Logger PC-connected protocol analyzer with standalone data logger capability. Multi-protocol support including RS-232C/RS-422/RS-485, Wi-Fi connectivity, logic analyzer waveform display, up to 1.544Mbps measurement speed.
• LE-270GF / LE-270AF CAN/CAN-FD/LIN Data Logger CAN/CAN-FD/LIN communication data logger supporting standalone measurement without PC and remote measurement from multiple locations. Wi-Fi enabled GF/AF models available.
• LE-650H2 USB Protocol Analyzer USB protocol analyzer for USB 2.0 full/low speed monitoring. Analyzes USB transactions with real-time display and triggering capabilities.
• LE-910R / LE-918R / LE-928R Analog Measurement Instruments Analog measurement instruments for logging voltage/current signals. LE-910R and LE-918R are compact loggers; LE-928R supports 8-point high-speed measurement with both PC display and standalone logging.
• LE-930R / LE-940R Analog Signal Generators Analog signal generators that output voltage/current signals according to configured patterns. LE-940R is the 4-channel version.
• SI-60 / SI-60X / SI-60X2 / SI-70X Series Interface Converters Serial-to-LAN interface converters that convert RS-232C serial communication to TCP/IP LAN protocols. Includes dual-port (SI-60X2) and condition conversion (SI-70X) models.
• SI-60FWi Wireless LAN Interface Converter Wireless LAN to RS-232C interface converter supporting IEEE 802.11a/b/g/n dual-band (2.4GHz/5GHz). Converts serial devices to wireless network connectivity.
• SI-60SG / SI-65SG Sub-Gigahertz Wireless Interface Converters Sub-gigahertz (920MHz band) wireless serial-LAN converters enabling long-distance wireless transmission of serial communication data.
• SI-232MB Modbus Gateway Modbus gateway that bidirectionally converts RS-232C Modbus RTU/ASCII to Modbus TCP, enabling connection between serial Modbus devices and Ethernet networks.
• SI-VCP Virtual COM Port Software Virtual COM port software that makes SI series LAN conversion models appear as PC COM ports, enabling legacy serial applications to work over networks.
• LANIO Series Digital I/O Units LAN-connected digital I/O units for remote monitoring and control of digital input/output signals over Ethernet. Includes LA-N series with enhanced features and PoE support.
• LANIO-SG Sub-Gigahertz Wireless Digital I/O Units Sub-gigahertz (920MHz) wireless digital I/O units for long-distance remote monitoring and control without wired network infrastructure.
• LA-2R3A-W / LA-3A3P-PW Dual-Band Wireless LAN I/O Units Dual-band wireless LAN I/O units with analog input/output capability (2-channel analog input/output plus relay output).
• LANIO Analog Series Analog I/O Units LAN-connected analog I/O units for remote monitoring of analog voltage/current signals and analog signal output control over Ethernet.
• Embedded System / Custom Development Services Custom embedded device and system development services, including OEM product development based on LINEEYE technology.
• LE-BA06 / LE-BA09 / LE-BA12 Mobile Battery Adapters Mobile battery step-up adapters that convert 5V USB power to 6V (LE-BA06), 9V (LE-BA09), or 12V (LE-BA12) for powering measurement devices from portable batteries.
• Paid Inspection and Repair Services Paid inspection (33,000-45,000 yen) and repair services for LINEEYE products, with 1-2 year maintenance recommendations. Products are supported for repair up to 5 years after discontinuation.

Segments4 records

Ideal customer profiles4 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Integration3 records

Feature4 records

Scale indicators2 records

Recent moves6 records

Expansion highlights6 records

Broad incumbents

• Rohde & Schwarz: Global T&M incumbent offering oscilloscopes, spectrum analyzers, and protocol testers. Overlaps with LINEEYE in automotive (CAN/CAN FD/LIN) and wireless protocol analysis but operates at much larger scale and broader scope.
• Yokogawa Electric Corporation: Japanese industrial measurement and control company with data acquisition, power measurement, and field instruments. Comparable as a Japanese industrial measurement peer with broader scope and much larger scale.
• Advantech Co., Ltd. Taiwan-based industrial computing and I/O company with Ethernet I/O, serial communication cards, and remote I/O modules. Overlaps with LINEEYE's LANIO series and serial-interface products at larger scale.
• Keysight Technologies: Global leader in electronic test and measurement instrumentation including protocol analyzers for serial, USB, automotive, and wireless. Significantly larger and broader portfolio; competes with LINEEYE in higher-end protocol analysis segments.
• Tektronix (Ralliant): Major T&M manufacturer with oscilloscopes, signal analyzers, and serial protocol analysis solutions. Broad incumbent in the same test and measurement space as LINEEYE's protocol analyzers.

Direct peers

• Perle Systems: Manufacturer of serial-to-Ethernet converters, device servers, and industrial networking equipment. Direct competitor in the SI-series interface converter category with longer-established international distribution.
• Moxa Inc. Industrial networking and connectivity specialist with serial-to-Ethernet converters, protocol gateways, and wireless I/O products. Directly comparable in interface converter (SI series analog) and wireless I/O (LANIO analog) product lines, with broader global footprint.
• Hioki E.E. Corporation: Japanese specialist in electrical measurement instruments including data loggers, power meters, and recorders. Most direct comparable: similar domestic-focused Japanese niche T&M manufacturer with strong brand in industrial electrical measurement.
• Brainboxes Limited: UK-based serial-to-Ethernet converter and remote I/O manufacturer. Direct comparable in the SI-series product category with focus on industrial and embedded connectivity applications.

Regional players

• Kikusui Electronics Corporation: Japanese electronic measurement instruments manufacturer focused on power electronics testing, oscilloscopes, and signal generators. Comparable as a Japanese regional T&M peer with similar market positioning but different protocol specialization.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat4 records

Key risks6 records

Key highlights6 records

Customer concentration

Compliance2 records

Revenue estimate

Valuation estimate

Number of profiles

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 LINEEYE Co.