What Siren Marine does

Siren Marine is a marine IoT company founded in 2011 and headquartered in Newport, Rhode Island (incorporated in Delaware), that builds cellular- and satellite-connected hardware for remote monitoring and control of recreational boats. Its core platform centers on the Siren 3 and Siren 3 Pro hubs, which aggregate data from up to 6-16 wireless sensors covering battery voltage, bilge pump activity, high-water detection, entry, temperature, shore power, and GPS position, and surface alerts and controls through the Siren Connected Boat mobile app. The hardware integrates with the NMEA 2000 marine electronics backbone, CZone digital switching, and Yamaha Command Link Plus engine telemetry, and an optional SirenSat offshore antenna extends connectivity to Globalstar satellite coverage for vessels outside cellular range.

The company monetizes through a combination of one-time hardware sales (hubs $299.99-$799.99, sensors ~$140, accessories $19-$260) and recurring cellular subscriptions ($22/month, $150 seasonal, $225 annual, $575 for 3 years, $900 for 5 years), with additional SirenSat satellite subscriptions ($350-$1,050) layered on top. Go-to-market combines a self-serve e-commerce storefront with a package builder, a certified dealer/installer network, an OEM relationship with Yamaha Marine that embeds Siren technology into Yamaha outboards and the merged My Yamaha Outboards app, and a Siren Fleet portal serving boat dealers, OEMs, and commercial marine operators (with TowBoat US Tampa Bay as a publicly named fleet customer). The company operates with 11-50 employees and has raised approximately $3.35M in disclosed funding across a 2017 and 2021 round.

Name

Siren Marine

Legal name

Siren Marine, Inc.

Website

https://sirenmarine.com

Company type

Private

Founded year

2011

Operating status

Operating

Headcount range

11–50 employees

Short description

Siren Marine builds cellular and satellite IoT hardware and software that let recreational boat owners remotely monitor vessel systems (battery, bilge, shore power, security, GPS) and control onboard equipment via a smartphone app, with OEM integration into Yamaha outboards and a fleet portal for commercial operators.

Ownership category

akta.pro rank

Product category

Marine IoT monitoring hardware

NAICS

Search, Detection, Navigation, Guidance, Aeronautical, and Nautical System and Instrument Manufacturing (334511)

SIC

Search, Detection, Navagation, Guidance, Aeronautical Sys (3812), Computer Communications Equipment (3576)

akta.pro primary industry

Marine Sensors, Instrumentation & IoT (Condition Monitoring) (IMAJAJAI)

akta.pro secondary industries

Marine Safety & Navigation Electronics Retail (PFDs, EPIRBs, GPS, VHF) (CRAMAIAH), Life-Saving Appliances & Safety Equipment (Davit Systems, Lifeboats, Firefighting) (IMAJAIAG)

Keywords

• Marine IoT monitoring
• Connected boat security
• Vessel remote monitoring
• Marine telematics systems
• Boat tracking devices

Headquarters

HQ city

Newport

HQ country

United States

HQ region

North America

Offices1 record

Markets served

GTM type

B2B and B2C

Offering type

Hardware or Manufacturing

Cost components

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

Revenue model

1. Hardware Sales: One-time sales of Siren 3 main units ($299.99-$799.99), wireless sensors ($19-$140), SirenSat antenna ($259.99), and various accessories. Hardware requires subscription for connectivity.
2. Cellular Service Plans: Required subscription for all Siren systems to transmit data between device and app. Available as monthly ($22), seasonal ($150), annual ($225), 3-year ($575), or 5-year ($900) plans.
3. Satellite Subscription (SirenSat): Additional satellite connectivity subscription for offshore tracking. 1-year ($350), 2-year ($700), or 3-year ($1,050) plans. Requires cellular subscription.
4. Pre-Built Bundles: Bundled hardware packages including main device, sensors, and annual service plan at discounted prices ($549-$1,599), driving higher average order value.

Pricing tiers

Go-to-market motion4 records

Distribution channels5 records

Marketing channels8 records

Core offering

Siren Marine designs, manufactures, and sells IoT-based connected boat hardware (Siren 3 and Siren 3 Pro hubs, wireless sensors, and the SirenSat satellite antenna) that remotely monitor battery, bilge, shore power, temperature, location, and security on recreational vessels. Hardware is paired with required cellular (4G/5G LTE-M) and optional satellite subscriptions and the Siren Connected Boat mobile app for end consumers, plus the Siren Fleet web portal for commercial multi-vessel operators.

Product overview

Siren Marine offers a Connected Boat IoT platform consisting of the Siren 3 and Siren 3 Pro central monitoring devices, wireless and wired sensors, satellite connectivity accessories, and mobile/web applications. The Siren 3 ($299.99) serves as the entry-level hub supporting up to 6 wireless sensors, while the Siren 3 Pro ($799.99) offers advanced features including satellite compatibility, up to 16 wireless sensors, digital switching (CZone), and 4 relay outputs. The product ecosystem includes wireless sensors (battery, bilge, entry, high-water, temperature), security sensors (canvas snap, magnetic reed switch, wired security switch, motion sensors), shore power monitors (120V/240V relays, sensor plug), and the SirenSat offshore antenna for satellite tracking. Six pre-built bundles target specific boat types (inshore angler, recreational angler, social/family, offshore adventurer, watersports, long-distance cruiser). All systems require cellular subscriptions (monthly $22 to 5-year $900) with additional satellite plans for offshore coverage. The Siren Fleet portal enables multi-vessel fleet management for commercial operators. The platform integrates with Yamaha outboards for engine data monitoring and CZone digital switching systems.

Differentiator

Problem solved

Functional benefit

Brands

• Connected Boat®: IoT boat monitoring and security technology platform enabling remote monitoring of vessel systems via smartphone app.
• Siren Fleet™

Products and services

• Siren 3 Main Device Entry-level cellular-connected smart boat monitoring hub (4G/5G LTE-M) that supports up to 6 wireless sensors and 1 wired security sensor, enabling remote monitoring of battery, bilge, engine performance, temperature, and location. Requires a cellular service plan.
• Siren 3 Pro Main Device Advanced cellular-connected smart boat monitoring hub with optional SirenSat satellite fallback, digital switching control (CZone), and up to 16 wireless sensors, 3 wired security inputs, and 4 relay outputs. Includes internal backup battery (up to 48 hours). Requires a cellular service plan.
• SirenSat Offshore Antenna Satellite tracking antenna that enables boat location monitoring outside cellular coverage via the Globalstar network, with geofencing and 15-30 minute check-ins. Requires a separate SirenSat subscription and an active cellular subscription.
• Siren Connected Boat App Mobile application for iOS and Android that provides remote monitoring and control of connected boats, displaying battery levels, bilge activity, water levels, temperature, shore power status, GPS location with geofencing, digital switching, and Yamaha outboard engine data.
• Siren Fleet Portal Web-based fleet management dashboard for monitoring multiple vessels. Provides GPS tracking, geofencing, notifications, remote control, reporting, and user management for boat dealers, OEMs, fleet operators, and marine service businesses.
• Wireless Battery Sensor Sub-GHz wireless sensor (IP67) that monitors battery voltage and alerts when levels exceed or drop below preset thresholds. Up to 200 ft wireless range.
• Wireless Bilge Sensor Sub-GHz wireless sensor that monitors bilge pump activity including run time and daily cycles, alerting when preset thresholds are exceeded.
• Wireless Entry Sensor Sub-GHz wireless security sensor providing instant notifications for unauthorized entry into lockers, doors, and hatches, including an open/close magnet.
• Wireless High-Water Sensor Sub-GHz wireless sensor with a water probe that detects water in the bilge above preset levels and sends alerts.
• Wireless Temperature Sensor Sub-GHz wireless sensor with a temperature probe for monitoring cabin, engine room, bait locker, or fridge temperatures, alerting when preset ranges are exceeded.
• Canvas Snap Sensor Security sensor that replaces canvas snaps to detect unauthorized cover removal; designed for boats with canvas covers preventing access to boat and gear.
• Magnetic Reed Switch Wired security switch that detects unauthorized cabin entry through doors or external hatches. Can monitor multiple entry points and offers screw or adhesive mounting.
• Wired Security Switch Plunger-style door switch that controls circuits based on door open/closed position and can trigger automations including audible alarms when doors open while the boat is armed.
• Infrared Motion Sensor Ceiling-mount 360-degree PIR motion sensor with up to 36 ft detection, triggering notification or alarm on unauthorized presence in cabin or entryway.
• Shore Power Sensor Plug Plug-in AC-to-DC adapter that monitors shore power presence at the dock and alerts if power is lost. Designed for larger vessels relying on external power for critical dock systems.
• 120V AC Shore Power Relay Hardwired relay that detects presence and loss of 120VAC shore power. Compatible with Siren 3 Pro only.
• 240V AC Shore Power Relay Hardwired relay that detects presence and loss of 240VAC shore power for larger vessels. Compatible with Siren 3 Pro only.
• DC Accessory Relay Relay that controls 12V onboard devices such as A/C, lights, sirens, or strobes. Required for 12V systems drawing more than 1 Amp through Siren 3 outputs.
• Mini Audible Alarm 105 dB audible alarm with a sweeping siren sound, connected to Siren 3 Pro outputs for remote on/off control via the app or to sync with specific sensor inputs.
• EGIS Remote Battery Switch 12-24V remote battery switch (35-75% smaller than traditional switches) that enables remote control of battery isolation from the Siren Connected Boat app.
• NMEA 2000 Connection Kit Cable and T-connector kit for connecting Siren 3 Series devices to a vessel's NMEA 2000 marine electronics backbone.
• External GPS Antenna External antenna accessory for enhanced GPS tracking and position accuracy on Siren 3 Series devices.
• Siren Marine Cellular Service Subscription Required cellular data subscription (5G LTE-M) that transmits unlimited data between any Siren 3 or Siren 3 Pro device and the Siren Connected Boat app. Available as Monthly ($22), Seasonal/Annual ($150), Annual ($225), 3-Year ($575), and 5-Year ($900) plans.
• SirenSat Offshore Satellite Subscription Required satellite subscription for the SirenSat antenna, providing Globalstar-based offshore tracking when vessels are outside cellular coverage. Available as 1-Year ($350), 2-Year ($700), and 3-Year ($1,050) plans; cellular subscription also required.

Quantifiable outcome

• Insurance savings of 5-10% available with most marine insurance providers
• +2 more outcomes

Named customers2 records

Segments6 records

Ideal customer profiles2 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Integration3 records

AI capability3 records

Feature9 records

Partnerships

Four partnerships are on record, tiered core and minor.

• Yamaha MarinecoreStrategic or Co-development PartnerIndustry-leading partnership where Siren Marine's technology is integrated with Yamaha outboards. Features from My Yamaha Outboards app merged into Siren Connected Boat app. Siren 3 Pro provides deeper data integration with Yamaha DEC engines using Helm Master EX controls. Joint go-to-market through Yamaha dealer network.
• CZonecoreTechnology or IntegrationCZone digital switching integration allows remote control of lights, AC, and other onboard systems directly from the Siren Connected Boat app. Requires NMEA 2000 network connection and configuration by certified CZone installer.
• GlobalstarcoreTechnology or IntegrationSirenSat Offshore Antenna uses Globalstar satellite network for boat tracking outside cellular coverage. Vessels check in every 15-30 minutes with global coverage.
• Wavve BoatingminorGTM or Marketing PartnerMarketing partnership offering 1 year of FREE ACCESS to Wavve Boating app for active annual Siren plan subscribers.

Scale indicators5 records

Recent moves1 record

Expansion highlights6 records

Broad incumbents

• Garmin: Garmin is the dominant marine electronics OEM with chartplotters, GPS, sonar, and integrated vessel monitoring. It is the primary competitive threat to Siren Marine and shares overlap in GPS tracking, marine sensors, and on-vessel network connectivity (NMEA 2000).
• Raymarine: Raymarine manufactures marine electronics including multifunction displays, radar, autopilots, and NMEA 2000 networking. It overlaps with Siren Marine on vessel connectivity backbone and is an established incumbent in marine electronics.
• Simrad: Simrad offers marine electronics (displays, sonar, radar, autopilots) widely used on offshore and recreational boats. It is comparable to Siren Marine through shared NMEA 2000 connectivity, vessel data integration, and overlap with the Yamaha dealer ecosystem.
• Lowrance: Lowrance produces marine electronics for fishing and recreational boating, including networked displays and sensors. It overlaps with Siren Marine on NMEA 2000 ecosystem participation and connected-vessel use cases, particularly with fishing/angling customers.

Direct peers

• GOST (Global Ocean Security Technologies): GOST offers marine security, monitoring, and satellite tracking systems for boats and yachts. It directly overlaps with Siren's bilge/battery/security/shore-power monitoring and GPS tracking, including satellite fallback for offshore coverage.
• Boat Fix: Boat Fix is a marine telematics and concierge service offering remote monitoring and on-water assistance. It competes with Siren Marine's connected-boat subscription model, particularly in fleet and consumer vessel monitoring.
• Skyhawk Oversea: Skyhawk Oversea provides advanced boat security and tracking systems, including satellite alerting for theft and intrusion. It is named alongside Siren Marine as a competing security/monitoring platform for boats.

Emerging players

• Navionics: Navionics provides marine charts and a connected boating app used for navigation and onboard data. It overlaps with Siren's GPS tracking and connected-boat app experience, though Navionics' core product is cartography rather than vessel monitoring.
• Victron Energy: Victron Energy builds marine power monitoring and remote-management hardware (battery monitors, shore-power, inverter/chargers) with VRM remote monitoring. It overlaps with Siren Marine on battery and shore-power monitoring in connected boats.
• Mastervolt: Mastervolt provides marine power electronics and battery-monitoring systems with networked remote monitoring. It is comparable to Siren Marine on vessel electrical monitoring and remote diagnostics via dedicated marine networks.

Market position

Strengths5 records

Weaknesses4 records

Competitive moat5 records

Key risks7 records

Key highlights7 records

Customer concentration

• YouTubeyoutube.com/channel/UC7saBIqAcpp6JuzZGhtZ2Yw
• Facebookfacebook.com/sirenmarine
• Instagraminstagram.com/siren_marine
• Xx.com/sirenmarine

Compliance8 records

Revenue estimate

Valuation estimate

Number of profiles

Funding overview

Funding rounds2 records

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 Siren Marine