What Sezo does

SEZO Sp. z o.o. is a privately held Polish IoT hardware company founded in 2017 and headquartered in Gdynia, Poland, operating from the Pomeranian Science and Technology Park (PPNT). The company designs and manufactures low-power, wide-area network (LP-WAN) sensor devices built on LoRaWAN and LTE-M/NB-IoT connectivity, targeting industrial, commercial, and government buyers across Europe. SEZO operates with 1-10 direct employees and draws on an affiliated engineering pool via the WiRan group, which provides over 15 years of RF and component design experience plus an in-house ELAB laboratory for EMC compliance testing.

The product portfolio spans roughly 15 SKUs organized into five use-case categories: outdoor air quality (SEZO AM, AL, PM, PL), indoor air quality (SEZO EM, EL, SL, CL), maintenance and security (SEZO SL, CL, WL, BL, DS, DM, HM), storage and production (SEZO UL, EL, EM, WM), and tracking (SEZO TM, EMR, HT). Devices measure environmental parameters including temperature, humidity, air pressure, ambient light, noise, VOC and particulate matter, acceleration, PIR motion, GPS, and water leakage. Differentiated features include multi-year battery life (up to 5 years on a single cell for LoRaWAN), IP55/IP67 ruggedized enclosures, OTA configurability for LTE-M units, and integration with Orange Live Objects, The Things Stack, Chirpstack, ThingsBoard, FAMOC Connect, and Applio platforms.

The business model is direct enterprise sales of proprietary hardware with a contact-sales pricing model, supplemented by professional engineering services for custom device development, gateway procurement (Sentrius RF1xx LoRaWAN Gateway), and network server setup. Go-to-market relies on a combination of inbound enterprise inquiries, accelerator-driven visibility (Space3ac, BRINC, KPT ScaleUP, IndustryLab), EU-funded R&D projects, and sector-specific wins including a deployed partnership with Grupa Azoty for warehouse telemetry and a military application for KTO Rosomak vehicle reversing sensors.

Name

Sezo

Legal name

SEZO Sp. z o.o.

Website

https://sezo.pl

Company type

Private

Founded year

2017

Operating status

Operating

Headcount range

1–10 employees

Short description

SEZO is a Polish IoT company that designs and manufactures low-power, long-range sensor devices using LoRaWAN and LTE-M technologies for environmental monitoring, asset tracking, and industrial applications across European enterprise and government customers.

Ownership category

akta.pro rank

Product category

Industrial IoT Sensor Hardware

NAICS

Automatic Environmental Control Manufacturing for Residential, Commercial, and Appliance Use (334512), Other Measuring and Controlling Device Manufacturing (334519)

SIC

Industrial Instruments For Measurement, Display, And Control (3823)

akta.pro primary industry

Industrial/OT Private Connectivity (Factory, Mining, Ports) (HDAIAGAD)

akta.pro secondary industries

Building Automation & Controls (BAS/BMS) (HSAPAPAA), Physical Security IoT & Smart Building Security Integration (Sensors, BMS tie-ins) (BPAKAGAL)

Keywords

• Industrial IoT sensors
• LoRaWAN sensor devices
• LTE-M environmental monitoring
• Air quality monitoring hardware
• Asset tracking sensors

Headquarters

HQ city

Gdynia

HQ country

Poland

HQ region

Europe

Offices2 records

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

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

Revenue model

1. IoT Hardware Devices: Sale of proprietary sensor devices based on LoRaWAN and LTE-M technologies. Devices include environmental monitors, air quality sensors, tracking systems, and specialized sensors for industrial applications. Customization available for large orders.
2. Engineering Services: Custom device development and configuration services. SEZO engineers help with network server setup and ThingsBoard platform customization. On-site technician installation available.
3. Gateway and Accessories: Sentrius RF1xx LoRaWAN Gateway from Laird available for order through SEZO. Wireless Qi chargers and mounting accessories available for purchase.

Pricing tiers

Go-to-market motion2 records

Distribution channels3 records

Marketing channels6 records

Core offering

Sezo designs, manufactures, and sells proprietary IoT sensor devices built on LoRaWAN and LTE-M/NB-IoT low-power wide-area network (LP-WAN) technologies. Its portfolio includes environmental and air quality sensors, water leak detectors, infrastructure opening/tamper sensors, 3D tracking devices, and specialized industrial/military proximity sensors sold to enterprise and public-sector customers through direct sales, with optional engineering services for deployment, network-server setup, and platform customization.

Product overview

SEZO is a Polish IoT company based in Gdynia specializing in low-power, long-range sensor devices for environmental monitoring and asset tracking. The product portfolio comprises two main technology lines: LoRaWAN-based devices (SEZO EL, SEZO SL, SEZO AL, SEZO CL, SEZO WL, SEZO UL) for long-range communication without subscription fees using unlicensed ISM band, and LTE-M/NB-IoT devices (SEZO AM, SEZO EM, SEZO EMR, SEZO DM, SEZO TM, SEZO WM, SEZO HM) for global cellular coverage with 2G backup. The devices measure environmental parameters including temperature, humidity, air pressure, light, noise, air quality (VOC/particulate matter), acceleration, motion (PIR), and GPS geolocation. Integration is primarily through Orange Live Objects platform, ThingsBoard, The Things Stack, and Chirpstack. Legacy products include SEZO PM, SEZO BL, and SEZO PL.

Differentiator

Problem solved

Functional benefit

Brands

• SEZO A1L: Advanced outdoor air quality and environmental monitoring sensor with LoRaWAN technology, featuring PM, temperature, humidity, pressure, light, noise, acceleration, magnetic field, and PIR motion detection
• WiRan

Products and services

• SEZO EL LoRaWAN-based indoor environmental monitoring system measuring VOC, temperature, humidity, air pressure, light intensity, and noise, with accelerometer, magnetometer, and PIR motion detection. Designed for office buildings and indoor spaces needing certification-standard monitoring.
• SEZO AM Outdoor air quality and environmental monitoring device with LTE-M/NB-IoT connectivity in a compact IP55 polycarbonate casing. Measures particulate matter, temperature, humidity, pressure, light, noise, acceleration, magnetic field, and PIR motion for harsh outdoor deployments.
• SEZO SL LoRaWAN-based battery-powered sensor with replaceable industrial Li-SOCl2 battery and USB configuration, used to monitor valuable items and configurable alarm thresholds in indoor environments.
• SEZO AL Outdoor air quality monitoring system built on LoRaWAN for continuous external environmental air-quality assessment.
• SEZO CL LoRaWAN-based comfort-zone monitoring device for indoor environments, battery-powered via replaceable Li-SOCl2 industrial battery with configurable alarm thresholds.
• SEZO EM LTE-M based indoor air quality monitoring system for comprehensive indoor environmental parameter measurement.
• SEZO EMR Indoor air quality monitoring device with LTE-M connectivity and wireless Qi charging that monitors VOC, temperature, humidity, atmospheric pressure, light, noise, acceleration, and PIR motion (up to ~5m human-presence range). Deployed at refineries and chemical facilities for shock and movement monitoring of critical components.
• SEZO DM LTE-M directional distance measurement sensor for horizontal or vertical plane measurement outdoors, with 28cm–750cm range, optional accelerometer and GPS for tamper detection and geolocation, and up to ~5-year battery life.
• SEZO WL LoRaWAN-based water leakage and condensation monitoring system with four detection zones using four sensor strips, sending zone-specific alerts.
• SEZO WM LTE-M water monitoring device with 8-zone leakage and condensation detection, anti-sabotage accelerometer, GPS-on-alarm localization, and battery-powered operation from 2x6000mAh cells.
• SEZO DS Precision reversing proximity sensor for harsh environments, designed for military vehicles (KTO Rosomak), with visual and acoustic warnings across caution (300–180cm), danger (180–100cm), and collision-danger (100–0cm) zones and qualified to military EMC, mechanical, and environmental standards.
• SEZO HM LTE-M infrastructure opening sensor that monitors manholes, doors, and gates with limit-switch input, tamper detection, satellite geolocation, and compatibility with NO/NC sensors such as floats for liquid-level detection.
• SEZO UL LoRaWAN battery-powered telemetry device with external probe for temperature and humidity of bulk materials, plus UV-radiation, atmospheric-pressure, and light-intensity measurement; battery life up to ~5 years; co-developed with Grupa Azoty for warehouse storage-condition monitoring.
• SEZO TM LTE-M/NB-IoT 3D GNSS geolocation tracker with geofence, altitude measurement, NFC access control, built-in speaker for voice messages, up to ~22 hours real-time tracking on a single charge, and accident detection via accelerometer. Used for worker tracking on construction sites and participant safety at mass running events.
• SEZO HT (Helmet Tracker) LTE-M helmet tracker with impact/overload sensors, built-in speaker for alarms, LED signaling, Bluetooth/NFC configuration, satellite geolocation, and pressure-differential altitude measurement; integrates with FAMOC Connect for accident monitoring and logistics support in high-risk environments.
• SEZO PM (legacy) Legacy LTE-M/NB-IoT complex environment monitoring device for comprehensive environmental parameter measurement.
• SEZO BL (legacy) Legacy LoRaWAN comfort-zone monitoring system with integrated alarm, replaceable battery, and configurable alarm thresholds.
• SEZO PL (legacy) Legacy LoRaWAN outdoor air quality monitoring device.
• Sentrius RF1xx LoRaWAN Gateway (via SEZO) Laird Sentrius RF1xx LoRaWAN gateways ordered through SEZO to provide LoRaWAN coverage up to ~10 km as part of SEZO-based deployments.
• Engineering & Integration Services Custom device development and configuration, LoRaWAN network-server setup, ThingsBoard platform customization, and on-site technician installation delivered alongside SEZO hardware sales.

Quantifiable outcome

• Battery life up to 5 years for LoRaWAN devices (SEZO UL)
• +5 more outcomes

Named customers10 records

Segments5 records

Ideal customer profiles5 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Integration7 records

Feature9 records

Partnerships

Seven partnerships are on record, tiered core and minor.

• Space3accoreStrategic or Co-development PartnerSpace3ac acceleration program partnership resulting in SEZO EL product - an environmental analysis system for office buildings monitoring air quality, light, sound, temperature, and water leaks based on BREEAM, LEED, WELL certification standards.
• BRINC AcceleratorcoreStrategic or Co-development PartnerBRINC Poland ScaleUp Hardware & IoT Accelerator partnership resulting in SEZO AM product - universal air quality and environmental parameter measurement device with LTE-M communication and LiveObjects platform compatibility.
• KPT ScaleUPcoreStrategic or Co-development PartnerKPT ScaleUP accelerator partnership with Grupa Azoty resulting in SEZO UL product - telemetry device for monitoring environmental parameters in warehouses including UV radiation impact on stored products.
• IndustryLabcoreStrategic or Co-development PartnerIndustryLab Industrial Innovation Accelerator resulting in SEZO DS product - precision proximity sensor meeting stringent plug-and-play environmental requirements for transport, handling, and construction sites.
• Orange Live ObjectscoreTechnology or IntegrationPlatform integration for data presentation and analysis. SEZO devices send data to Orange Live Objects platform via LTE-M or LoRaWAN. Platform enables easy device configuration and data visualization.
• PPNT (Pomorski Park Naukowo-Technologiczny)minorOthersSEZO is located within the Pomeranian Science and Technology Park, the largest center of organizations at the intersection of business, science, and technology.
• WiRancoreStrategic or Co-development PartnerSEZO is part of the WiRan group. Robert Stefański serves as CTO of WiRan, overseeing 11 engineers. WiRan has over 15 years of experience in RF design and components.

Scale indicators5 records

Recent moves6 records

Expansion highlights6 records

Direct peers

• Adeunis: French IoT device manufacturer with LoRaWAN, NB-IoT, and Sigfox sensors for smart building, smart city, and industrial applications. Comparable as a European specialist IoT sensor vendor targeting B2B system integrators and operators.
• Disruptive Technologies: Norwegian sensor manufacturer specializing in small, battery-powered wireless sensors for building and industrial monitoring. Directly comparable to Sezo in product form factor, LoRaWAN-based connectivity, and enterprise B2B GTM in environmental monitoring.
• MultiTech Systems: US-based manufacturer of IoT devices and gateways supporting LoRaWAN, NB-IoT, and cellular for industrial and asset monitoring. Comparable in multi-protocol industrial IoT device portfolio and B2B sales motion into system integrators.
• Elsys: Swedish designer and manufacturer of LoRaWAN wireless sensors covering temperature, humidity, CO2, VOC, distance, and people counting. Closest direct peer in terms of LoRaWAN sensor catalog breadth and European SMB/enterprise customer base.
• TEKTELIC Communications: Canadian vendor of LoRaWAN gateways and end-device sensors for smart buildings, smart cities, and industrial IoT. Direct peer covering similar LoRaWAN sensor + gateway product portfolio and enterprise/operator go-to-market.
• Decentlab: Swiss manufacturer of LoRaWAN-based sensors for environmental and industrial monitoring (air quality, soil, water, gas). Comparable in technology stack (LoRaWAN sensors for environmental parameters) and target verticals like agriculture, water, and environmental compliance.
• Synetica: UK-based manufacturer of LoRaWAN environmental sensors for temperature, humidity, CO2, and air quality targeting building, facilities, and cold-chain monitoring. Closely comparable in use cases (indoor air quality and storage monitoring) and LoRaWAN B2B sales motion.

Broad incumbents

• Sensirion: Swiss manufacturer of high-volume environmental and gas sensors used in HVAC, appliances, medical, and industrial markets. Acts as a sensor component supplier whose modules often compete with or are integrated into industrial environmental monitors like Sezo's.

Others

• Laird Connectivity: UK-based provider of IoT modules, Bluetooth, and LoRaWAN gateways (including the Sentrius RF1xx gateway that Sezo resells). Comparable as part of the same LoRaWAN ecosystem and partner of Sezo, but operates upstream as a component/gateway vendor.

Emerging players

• Airthings: Norwegian company focused on indoor air quality monitoring (radon, CO2, PM, VOCs). Comparable in air-quality sensing focus but skews consumer/SMB with smart-home channels rather than industrial B2B Sezo-style deployments.

Market position

Strengths4 records

Weaknesses5 records

Competitive moat4 records

Key risks6 records

Key highlights7 records

Customer concentration

• YouTubeyoutube.com/watch?v=BgqvjpKQO8Q
• Facebookfacebook.com/wiranpoland
• Instagraminstagram.com/wiranpoland

Revenue estimate

Valuation estimate

Number of profiles

Profiles3 records

Funding overview

Funding rounds2 records

Investors3 records

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 Sezo