What Sealite does

Sealite is a manufacturer of marine aids to navigation (AtoN) equipment, headquartered in Somerville, Victoria, Australia, with regional offices in the United States (New Hampshire), United Kingdom (Lowestoft), and Singapore. Founded in 1982 and employing 51-100 people, the company designs and produces marine buoys (ranging from 400mm to 3000mm diameter), solar-powered LED marine lanterns (1NM to 12NM+ visible range), connectivity systems (GSM, Iridium satellite, AIS), and mooring equipment including synthetic alternatives to traditional chain. Its proprietary Star2M cloud-based platform provides asset monitoring, control, and reporting for installed AtoN infrastructure. Products comply with IALA, ISO 9001:2015, CE, and US Coast Guard standards, targeting lighthouse authorities, port and harbour operators, inland waterway managers, offshore wind farm developers, and aquaculture operators globally.

The company operates an in-house rotational moulding manufacturing capability (with a third facility opened in August 2020) that enables vertical integration over polyethylene buoy production. Technical differentiators include active maximum power point tracking (MPPT) solar systems, GPS flash synchronization across multiple lanterns, Bluetooth programming via the SealitePro mobile app, and innovative modular designs such as the Atlantic-3000 ocean buoy with no central steel mooring post. The portfolio is positioned for harsh marine environments with UV-stabilized construction and IP68 ingress protection on key lanterns.

Sealite generates revenue primarily through hardware sales of marine buoys, lanterns, connectivity systems, power supplies, and mooring equipment, supplemented by professional services for installation and turnkey AtoN deployments (such as offshore wind farm marking). Pricing is quote-based and not publicly disclosed. The go-to-market combines direct enterprise field sales through four regional offices with a global authorized distributor network, supported by industry event participation, content marketing, and channel partner programs. Since 2021, Sealite has operated as a wholly-owned subsidiary of SPX Technologies (NYSE: SPXC) within the SPX Aids to Navigation division alongside Flash Technology and Sabik Marine, serving customers across more than 15 countries in Oceania, the Americas, Europe, the Middle East, Africa, and Asia-Pacific.

Name

Sealite

Legal name

Sealite Pty Ltd

Website

https://sealite.com

Company type

Private

Founded year

1984

Operating status

Operating

Headcount range

51–100 employees

Short description

Sealite is a global manufacturer of marine aids to navigation equipment, including solar-powered LED lanterns, polyethylene buoys, satellite/GSM connectivity, and the Star2M asset management platform, serving lighthouse authorities, port operators, offshore wind developers, and inland waterway authorities in 15+ countries as part of SPX Technologies.

Ownership category

akta.pro rank

Product category

Marine Aids to Navigation Equipment

NAICS

Support Activities for Water Transportation (4883), Navigational Services to Shipping (488330)

SIC

Search, Detection, Navagation, Guidance, Aeronautical Sys (3812)

akta.pro primary industry

Navigation & Aids-to-Navigation Works (Beacons, Buoys, Markers) (IMAFAJAH)

Keywords

• Marine aids to navigation
• Solar marine lanterns
• Navigation buoys
• Port entry lighting
• Mooring equipment

Headquarters

HQ city

Somerville

HQ country

Australia

HQ region

Oceania

Offices4 records

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

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

Revenue model

1. Marine Buoy Sales: Sale of rotationally-moulded polyethylene buoys in various sizes from 400mm to 3000mm diameter for navigation, mooring, and regulatory applications
2. Marine Lantern Sales: Sale of LED marine lanterns ranging from 1-2NM to 12NM+ visible range with solar, stand-alone, and satellite connectivity options
3. Monitoring & Connectivity Systems: Remote monitoring units, GSM, satellite communications, and AIS systems for asset management
4. Power Supplies & Accessories: Solar panels, batteries, and power supply systems for marine navigation equipment
5. Mooring Equipment: Complete mooring solutions including chain, synthetic moorings, shackles, swivels, and sinkers
6. Professional Services: Installation, maintenance, and turnkey project services for wind farm marking and port AtoN deployments

Go-to-market motion3 records

Distribution channels4 records

Marketing channels10 records

Core offering

Sealite designs and manufactures marine aids to navigation (AtoN) equipment including solar-powered LED marine lanterns, rotationally-moulded polyethylene navigation and regulatory buoys, port entry and lighthouse lighting systems, bridge and barge lights, monitoring and connectivity hardware (GSM, Iridium satellite, AIS), and mooring equipment. It also provides the Star2M cloud-based asset management software and supporting services such as installation, maintenance, and turnkey project delivery for port, river, offshore wind, and lighthouse customers worldwide.

Product overview

Sealite is a global manufacturer of marine aids to navigation (AtoN) products with a portfolio spanning marine buoys, solar marine lanterns, connectivity solutions, and mooring equipment. The product range includes large ocean buoys (Atlantic-3000, Trident-2600, Poseidon SL-B1750, Nautilus SL-B2200), navigation and regulatory marker buoys (SL-B700-RB, SL-B576), barrier floats (SL-BF), and marine floats. The lantern portfolio covers solar-powered units (SL-C510, SL-75, SL-C310 Series) ranging from 2-3NM to 12NM visibility, as well as stand-alone and sector lights. Connectivity is provided through GSM, satellite (Iridium), and AIS monitoring solutions integrated with the Star2M asset management platform. Mooring offerings include traditional hardware (chains, shackles, swivels) and synthetic mooring alternatives. Sealite operates as part of SPX Technologies' AtoN division and has been serving the marine industry for over 40 years.

Differentiator

Problem solved

Functional benefit

Brands

• Star2M: AtoN management software platform for monitoring and controlling aids to navigation assets.

Products and services

• Atlantic SL-B3000C Large Ocean Buoy

Quantifiable outcome

• Category 1 availability (99.8% uptime, 17.52 hours downtime per annum) achievable for wind farm applications
• +4 more outcomes

Named customers14 records

Segments6 records

Ideal customer profiles5 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Integration3 records

Feature10 records

Partnerships

Nine partnerships are on record, tiered core and minor.

• Flash TechnologycoreStrategic or Co-development PartnerPart of the SPX AtoN family of businesses alongside Sealite and Sabik Marine, working together to provide integrated AtoN solutions and products.
• Sabik MarinecoreStrategic or Co-development PartnerPart of the SPX AtoN family. Sealite exhibited together with Sabik Marine at AAPA Latino 2021 in Cartagena, Colombia to showcase combined product portfolios and Star2M platform integration capabilities.
• Quartz SistemascoreChannel Partner/ Reseller/ DistributorExclusive Sealite distributor for Uruguay. Worked with Sealite to provide AtoN solutions for CARU (Comisión Administradora del Río Uruguay) project, supplying 139 new aids to navigation for the Uruguay River.
• North West MarinecoreChannel Partner/ Reseller/ DistributorAuthorized distribution partner for UAE and Oman region with over 30 years of experience in the Middle East. First Sealite distributor to take up synthetic mooring option, deploying synthetics on 340 buoys since 2014 with successful results.
• Construcciones TaromarcoreChannel Partner/ Reseller/ DistributorSealite distribution partner that undertook one of the largest AIS projects in Lake Maracaibo, Venezuela, consisting of 200 AIS-fitted SL-C600 self-contained 5-8NM lights for Instituto Nacional Canalizaciones.
• Michael WalkercoreOthersManaging Director for Australia, Asia-Pacific & Middle East appointed to lead Sealite integration into SPX AtoN.
• Tara StewartcoreOthersManaging Director for Global AGL & Americas Marine appointed to lead SPX AtoN brands and support expansion of product presence worldwide.
• OrstedminorStrategic or Co-development PartnerOffshore contractor for Dominion Energy's CVOW pilot project that contracted Cape Henry Launch Services for AtoN deployment using Sealite products.
• Cape Henry Launch ServicescoreImplementation/ SI/ Consulting PartnerMarine services company contracted to deliver marking solution for Dominion Energy wind farm using Sealite buoys and lanterns. Deployed private ATONs and provided training for wind energy project marking.

Scale indicators5 records

Recent moves6 records

Expansion highlights6 records

Direct peers

• Sabik Marine: Sabik Marine is a direct peer and sister brand under the SPX Aids to Navigation division. It manufactures marine lanterns, LED beacons, and AtoN equipment for lighthouses, ports, and offshore installations, and co-exhibits with Sealite at trade events such as AAPA Latino. Product overlap and shared Star2M platform integration make Sabik Marine the most comparable competitor/co-worker in the same marine-AtoN category.
• Tideland Signal: Tideland Signal is a long-established direct competitor in marine aids to navigation, manufacturing buoys, lanterns, fog signals, and range lights for ports, harbours, and offshore platforms. Comparable product categories, similar IALA-compliance focus, and overlapping government/port-authority customer base place it as a primary direct peer.
• Carmanah Technologies: Carmanah designs and manufactures solar-powered LED marine lanterns, beacons, and buoys with integrated monitoring for navigation and warning markets. Its solar-powered lanterns, focus on remote monitoring, and similar IALA-compliance approach make it a close direct peer for Sealite's lantern and connectivity product lines.
• Pharos Marine Automatic Power: Pharos Marine Automatic Power is a specialist manufacturer of marine AtoN equipment including lanterns, range lights, fog signals, and power systems used by ports, lighthouse authorities, and offshore operators. Its full-portfolio AtoN offering and similar government/marine authority customer base make it a direct peer to Sealite.
• Vega Industries: Vega Industries (New Zealand) is a pure-play marine AtoN manufacturer producing marine beacons, lanterns, and floating buoys for ports, harbours, and offshore operators globally. Its full AtoN portfolio and focus on solar-powered lanterns closely mirror Sealite's product positioning in the same lighthouse/port segment.
• Hydrosphere UK: Hydrosphere UK supplies buoys, navigation lights, and mooring equipment to ports, harbours, inland waterways, and offshore operators in the UK and EMEA region. Its product breadth across marine buoys and lanterns and serving of similar port/waterway customers make it a comparable regional specialist peer.
• Jotron: Jotron is a Norwegian marine electronics manufacturer of lanterns, beacons, AIS transponders, and search-and-rescue safety equipment for maritime and offshore markets. Strong overlap with Sealite in marine safety lighting and AIS-based navigation aids serving offshore-wind and shipping customers qualifies it as a direct peer.

Broad incumbents

• ACR Electronics / McMurdo Group: ACR Electronics / McMurdo Group manufactures marine safety and survival equipment including EPIRBs, beacons, and navigation lights for government, commercial, and offshore customers. While broader in safety and survival equipment, its overlap in marine signaling lights and government procurement channels creates partial peer comparability.
• Wärtsilä Marine (Transas / NAPA navigation portfolio): Wärtsilä's Marine division, including Transas and NAPA navigation systems, supplies integrated marine navigation, voyage planning, and digital bridge solutions to ports, shipping lines, and government maritime authorities. While primarily a software-and-services broad incumbent in maritime navigation, it serves the same government-port customer base and competes for digitalization of AtoN ecosystems.
• Xylem (Water Solutions segment, marine/waterway infrastructure): Xylem is a large diversified water and marine infrastructure provider, including buoys, water-quality monitoring, and waterway management solutions serving the same ports, harbours, and inland waterway authorities as Sealite. While broader and not AtoN-focused, it competes for adjacent budget lines in port hydrography and waterway monitoring.

Market position

Strengths4 records

Weaknesses4 records

Competitive moat6 records

Key risks6 records

Key highlights7 records

Customer concentration

• Xx.com/sealiteaton
• YouTubeyoutube.com/channel/UCXNmErVlSL28x17yDPwP4nQ
• LinkedInlinkedin.com/company/sealite-pty-ltd

Compliance7 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles3 records

Subsidiaries2 records

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 Sealite