Siretta

What Siretta does

Siretta Limited is a UK-based designer and manufacturer of industrial cellular IoT connectivity hardware headquartered in Reading. Founded in 2013, the company builds low-power cellular modems (ZETA family), serial gateways (SirettaLINK SL500), industrial cellular routers (QUARTZ family, 5G NR and 4G LTE), handheld (SNYPER) and remote (SENTRY) cellular network analysers, and a broad portfolio of antennas (Alpha, Delta, Echo, Mike, Tango, Oscar series) plus RF cables and adapters. The ZETA modem line supports 2G/GPRS, 3G/UMTS, LTE Cat 1, LTE Cat 4, LTE-M, and NB-IoT with sub-1mA power consumption, embedded C development via the SirettaSPARK environment, eSIM, FOTA, and optional multi-constellation GNSS; products are rated for industrial environments (-40 to +85°C, 5-42V input). Complementary CloudSURVEY software provides subscription-based cellular mapping and survey analytics tied to SNYPER and SENTRY devices.

Siretta sells exclusively B2B through an authorised distribution network that includes tier-1 global electronic component catalogues (Digi-Key, Mouser, Arrow Electronics, Farnell/Avnet, RS Components) and roughly 35-40 regional distributors across EMEA, the Americas, Asia Pacific, and the Middle East (22+ countries). Revenue is overwhelmingly hardware sales on a quote-based pricing model with volume tiers, supplemented by CloudSURVEY subscriptions introduced in 2025 and professional services for custom firmware, enclosure, antenna, and RF design. Target verticals include industrial automation, transportation and mobility (fleet, EV charging, traffic, payments), security and access control, utilities and smart infrastructure, and IoT solution developers/system integrators. The company holds CE, UKCA, FCC, RCM, VCCI, RoHS, REACH, TSCA, and CMRT certifications enabling multi-region product deployment. Named end-customer illustrations include Uber Boat by Thames Clippers, Metric Parking, EV charging operators, traffic management systems, door entry systems, and HIV early diagnosis systems, suggesting a fragmented, long-tail customer base rather than concentrated anchor accounts. Stephen Sydes is the Chief Executive.

Name

Siretta

Legal name

Siretta Limited

Website

https://siretta.com

Company type

Private

Founded year

2013

Operating status

Operating

Headcount range

11–50 employees

Short description

Siretta is a UK-based designer and manufacturer of industrial cellular IoT hardware, including low-power modems, 5G/4G routers, network signal analysers, antennas, and RF components, sold B2B through a global distributor network to industrial automation, transportation, security, and IoT integrator customers.

Ownership category

akta.pro rank

Product category

Industrial Cellular IoT Connectivity Hardware

NAICS

Telephone Apparatus Manufacturing (33421), Telephone Apparatus Manufacturing (334210)

SIC

Computer Communications Equipment (3576), Communications Equipment, Nec (3669)

akta.pro primary industry

Cellular IoT/M2M Gateways & Routers (LTE/5G) (HDAFAIAF)

akta.pro secondary industries

IoT Connectivity Management (Private APN, SIM/eSIM, Device Connectivity) (HDAIAGAG), Wireless Interface Adapters (Wi‑Fi/Bluetooth/Cellular Modems) (HDAFAEAJ), AMI Communications (RF Mesh, PLC, Cellular/NB-IoT, Private LTE) (EUADAFAD), Industrial/OT Private Connectivity (Factory, Mining, Ports) (HDAIAGAD)

Keywords

• Industrial cellular modems
• Cellular IoT connectivity
• Industrial cellular routers
• Cellular signal analysers
• RF antenna solutions

Headquarters

HQ city

Reading

HQ country

United Kingdom

HQ region

Europe

Offices1 record

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

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

Revenue model

1. Hardware Sales - Industrial Modems: Sale of industrial cellular modems including ZETA family products supporting various cellular technologies from 2G to LTE Cat 4 and LTE-M/NB-IoT. Products sold through distributors globally with different regional variants (EU, USA, AP, Global).
2. Hardware Sales - Industrial Routers: Sale of QUARTZ industrial cellular routers supporting 4G LTE and 5G NR technologies with various form factors from ultra compact to quad-port gigabit ethernet configurations.
3. Hardware Sales - Network Analysers: Sale of SNYPER handheld and SENTRY remote network analysers for cellular network surveying and monitoring.
4. Hardware Sales - Antennas and RF Components: Sale of cellular, GNSS, WiFi, LoRa, and ISM band antennas plus RF cables, adapters and accessories. Product lines include Alpha, Delta, Echo, Mike, Tango, and Oscar antenna families.
5. CloudSURVEY Subscription: Subscription-based cellular mapping portal for survey data management and analysis with compatible SNYPER and SENTRY devices.
6. Customisation Services: Custom modem and antenna solutions including firmware customization, enclosure modifications, interface adaptations, connector changes, antenna tuning, and bespoke RF solutions.

Pricing tiers

Go-to-market motion1 record

Distribution channels10 records

Marketing channels9 records

Core offering

Siretta designs and manufactures industrial cellular IoT connectivity hardware including low-power ZETA modems supporting 2G through 5G NR and LTE-M/NB-IoT, QUARTZ industrial cellular routers, SNYPER handheld and SENTRY remote cellular network signal analysers, multi-family antenna portfolios (Alpha, Delta, Echo, Mike, Tango, Oscar), and RF cables and adapters. The company also offers the CloudSURVEY subscription portal for cellular mapping and survey management, the SirettaSPARK embedded C programming environment, and bespoke hardware/firmware customisation services for industrial OEMs and IoT system integrators.

Product overview

Siretta is a UK-based designer and manufacturer of industrial IoT products providing a comprehensive portfolio of cellular connectivity solutions. The product range consists of: (1) ZETA Industrial Modems — low-power cellular modems supporting 2G/GSM through LTE Cat 4, LTE-M, and NB-IoT with multiple interface options and power profiles; (2) SirettaLINK (SL500 Series) — intelligent RS232 serial gateways for cellular connectivity; (3) QUARTZ Industrial Routers — 5G NR and 4G LTE routers with Gigabit Ethernet, dual SIM, GPS, and VPN capabilities; (4) SNYPER Handheld Network Analysers — portable signal analysers for surveying 5G, LTE, LTE-M, NB-IoT, 3G, and 2G networks; (5) SENTRY Remote Network Analysers — permanent installation network monitoring devices; (6) CloudSURVEY — cloud-based survey management and mapping portal; (7) Antenna product families (Alpha, Delta, Echo, Mike, Tango, Oscar) covering adhesive, direct connect, embedded, magnetic mount, through-hole, and wall/pole mount types across cellular, Wi-Fi, GNSS, and ISM bands; (8) RF Cables and Adapters for connectivity; and (9) Customisation Services for bespoke hardware modifications. The ZETA modems feature an embedded C programming environment (SirettaSPARK) for edge intelligence, while the full product range is supported by selector tools and subscription-based CloudSURVEY access.

Differentiator

Problem solved

Functional benefit

Brands

• SirettaLINK: Serial gateway product line for LTE CAT-M/NB-IoT and LTE CAT-1 modems with RS232 interface
• QUARTZ
• SNYPER
• SENTRY
• ZETA
• CloudSURVEY
• QUARTZ
• SL500

Products and services

• ZETA Industrial Modems Family of low-power industrial cellular modems supporting 2G/GPRS, 3G/UMTS, LTE Cat 1, LTE Cat 4, LTE Cat M, and NB-IoT technologies. Models include ultra-low-power variants consuming as low as 715µA @ 12V in idle, with RS232, USB serial, GPIO, and ADC interfaces, and optional GNSS positioning. Designed for industrial IoT applications requiring harsh-environment operation (-40°C to +85°C) and wide voltage support.
• SirettaLINK (SL500 Series) Serial Gateways Intelligent LTE Cat M/NB-IoT and LTE Cat 1 RS232 serial gateways with cloud management, FOTA updates, TCP gateway/server/client modes, and sleep mode capabilities. Designed for industrial serial-to-cellular applications requiring reliable remote connectivity of legacy RS232 equipment.
• QUARTZ Industrial Cellular Routers Family of industrial cellular routers providing reliable remote connectivity for Ethernet and RS232/RS485 devices via 5G NR, 4G LTE, 3G, and 2G networks. Features dual SIM support, GPS positioning, digital I/O, VPN tunneling, VLAN, VRRP, and SNMP management. Range includes ultra-compact single-port, dual-port small footprint, and quad-port gigabit Ethernet configurations in EU, USA, and Global variants.
• SNYPER Handheld Network Analysers Handheld portable cellular network signal analysers for on-site surveys across 5G NR, 4G LTE, LTE-M, NB-IoT, 3G, and 2G networks, including NTN satellite and 450MHz variants. Features battery power, TFT display, continuous survey logging, and LiveSCAN analysis for optimal antenna alignment. Includes SNYPER-5G Graphyte, SNYPER-LTE Graphyte, SNYPER-IoT Graphyte, SNYPER-LTE+ Spectrum, SNYPER-IoT-450 Graphyte, and SNYPER-NTN Logger models.
• SENTRY Remote Network Analysers Remote unattended cellular network monitoring devices with continuous survey capabilities for long-term fixed and mobile location network monitoring, with cell behavior analysis and GPS positioning. Used for permanent installation network monitoring applications such as fleet connectivity validation and EV charging network monitoring.
• CloudSURVEY Portal Cloud-based cellular mapping and survey management portal for SNYPER and SENTRY devices. Enables upload, control, analysis, and mapping of cellular network surveys with positioning and waypoint information. Offered via monthly subscription plans.
• Antenna Product Families (Alpha, Delta, Echo, Mike, Tango, Oscar) Comprehensive portfolio of antennas covering cellular (5G/4G/3G/2G), GNSS (GPS, Glonass, BeiDou, Galileo, QZSS, L1/L2/L5), Wi-Fi (including Wi-Fi 6/6E/7), LoRa, SigFox, Bluetooth, Zigbee, Z-Wave, and ISM bands across six product families (Alpha, Delta, Echo, Mike, Tango, Oscar) and multiple form factors including adhesive, direct connect, embedded PCB, magnetic mount, through-hole, and wall/pole mount. Includes high gain directional Yagi antennas and wideband outdoor panel antennas.
• RF Cables and Adapters Low-loss RF cable assemblies and adapters for connecting RF modules, antennas, and devices. Includes pigtail cables, RG174, RG58, and 1.13mm flexible cables supporting 100 MHz to 6 GHz, unterminated cable reels, gender changers, and lightning arrestors with SMA, TNC, FME, MMCX, and MCX connector types.
• CPE Outdoor Enclosure for QUARTZ Routers IP65-rated industrial outdoor enclosure designed for QUARTZ routers enabling reliable connectivity in exposed locations. Features pole and wall mounting, Power over Ethernet (PoE), and simplified deployment for remote outdoor installations.
• Customisation Services Hardware and firmware customisation services including custom firmware development, enclosure modifications, interface adaptations, connectivity requirement changes, antenna tuning, and bespoke antenna design. Leverages in-house RF design capability with UK-based engineering support to deliver solutions tailored to exact customer requirements.
• SirettaSPARK Embedded C Programming Environment Embedded C programming development environment for ZETA modems enabling cloud edge processing, intelligent decision-making, and application development directly on the device without an external microcontroller.

Quantifiable outcome

• Power consumption reduction up to 97% with ultra low power mode
• +2 more outcomes

Named customers6 records

Segments5 records

Ideal customer profiles2 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature8 records

Partnerships

Twelve partnerships are on record, tiered core, major and regional.

• Midoriya Electric Co. LtdcoreChannel Partner/ Reseller/ Distributor · 1 August 2025Japanese distribution partner based in Tokyo. New partnership announced in 2025, showcased Siretta SNYPER-5G cellular network analyser at COMNEXT Japan trade show to visitors across Asia.
• Digi-Key ElectronicsmajorChannel Partner/ Reseller/ DistributorGlobal electronic component distributor headquartered in Thief River Falls, MN, USA. Distributes Siretta products including modems, routers, analysers, and antennas to customers worldwide.
• Mouser ElectronicsmajorChannel Partner/ Reseller/ DistributorGlobal authorised distributor with UK office in High Wycombe. Provides distribution of Siretta industrial IoT products.
• Farnell / AvnetmajorChannel Partner/ Reseller/ DistributorRegional distributor based in Leeds, UK. Distributes Siretta products in UK and European markets.
• RS Components LtdmajorChannel Partner/ Reseller/ DistributorUK-based distributor based in Corby, Northants. Provides distribution of Siretta industrial components.
• Arrow ElectronicsmajorChannel Partner/ Reseller/ DistributorGlobal technology solutions provider with UK office at Suttons Business Park, Reading. Distributes Siretta products globally.
• Master ElectronicsregionalChannel Partner/ Reseller/ DistributorUS-based distributor headquartered in Phoenix, Arizona. Distributes Siretta products in North American market.
• Dacom West GmbHregionalChannel Partner/ Reseller/ DistributorGerman distributor based in Haan. Specialises in industrial connectivity solutions including Siretta products.
• UNITRONIC GmbHregionalChannel Partner/ Reseller/ DistributorGerman distributor based in Neuss. Distributes Siretta industrial IoT products in German market.
• Glyn Pty LtdregionalChannel Partner/ Reseller/ DistributorAustralian distributor based in Sydney. Distributes Siretta products in Asia Pacific region.
• DeltaM2M ApSregionalChannel Partner/ Reseller/ DistributorDanish distributor based in Fredensborg. Specialises in M2M and IoT connectivity solutions.
• Lemos InternationalregionalChannel Partner/ Reseller/ DistributorUS-based distributor located in Barrington, Rhode Island. Distributes Siretta products in North America.

Scale indicators4 records

Recent moves5 records

Expansion highlights6 records

Direct peers

• MultiTech Systems: MultiTech Systems designs and manufactures industrial cellular modems, routers and gateways with multi-RAT support (LTE, LTE-M, NB-IoT). Closely comparable mid-sized peer to Siretta's ZETA and QUARTZ product lines.
• Robustel: Robustel is a China-based manufacturer of industrial cellular routers and gateways for IoT applications. Directly comparable to Siretta's QUARTZ router line, serving overlapping industrial automation and transportation customers.
• Telit Cinterion: Telit Cinterion designs and manufactures cellular IoT modules, modems and platforms for industrial applications. Highly comparable to Siretta's industrial modem and router portfolio, with overlapping focus on LTE, LTE-M and NB-IoT connectivity.
• u-blox: u-blox produces cellular and positioning modules plus short-range radio chips for industrial and automotive IoT. Comparable to Siretta on cellular modem modules, GNSS positioning (across ZETA and antennas) and global distribution into industrial customers.
• Digi International: Digi International provides cellular routers, gateways and IoT solutions for industrial and enterprise customers. Directly comparable to Siretta's QUARTZ industrial router family and the broader cellular connectivity proposition.
• Sierra Wireless (Semtech): Sierra Wireless, now part of Semtech, is a leading provider of cellular IoT modules, gateways and routers. Directly comparable to Siretta across its ZETA modem, QUARTZ router and SirettaLINK serial gateway lines, serving the same industrial IoT and M2M customer base.

Broad incumbents

• Cradlepoint (Ericsson): Cradlepoint, now part of Ericsson, is a broad enterprise 4G/5G router and SD-WAN platform provider. Comparable at the QUARTZ router level but focuses on enterprise/WAN-failover rather than low-power industrial IoT.
• Advantech: Advantech is a broad industrial IoT and embedded computing company offering cellular routers, gateways and edge platforms. Comparable to Siretta's industrial router and edge gateway positioning, but as part of a much larger automation portfolio.
• Thales (formerly Gemalto/Cinterion): Thales' digital identity and security division (formerly Gemalto Cinterion) supplies industrial cellular modules and IoT connectivity platforms. Comparable to Siretta's industrial modem range but operates at much greater scale across multiple verticals.

Emerging players

• Four-Faith: Four-Faith is a China-based industrial cellular router and IoT gateway vendor focused on M2M and smart-city applications. Comparable emerging peer to Siretta's QUARTZ routers with overlapping LTE/NB-IoT industrial use cases.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks6 records

Key highlights7 records

Customer concentration

• Xx.com/sirettaltd
• Facebookfacebook.com/SirettaLtd
• LinkedInlinkedin.com/company/siretta-ltd
• Instagraminstagram.com/sirettaltd

Compliance11 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles1 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 Siretta