Seall ECDIS

What Seall ECDIS does

Seall ECDIS Limited is a private UK maritime navigation software company headquartered in Aberdeen, Scotland, and part of the Human Centered Technology (HCT) Group. The company develops a type-approved Electronic Chart Display and Information System (ECDIS) and adjacent navigation software — Passage Planner, ECS, SEALL TAB — built on a proprietary ENC Kernel SDK that implements the IHO S-57/S-63 chart standards and the emerging S-100 framework (S-101, S-102, S-104, S-111). The kernel is written in C#/.NET with a SkiaSharp graphics engine for GPU-accelerated, cross-platform rendering across Windows, Linux, and Android, and is distributed both as a NuGet package for OEM integration and as the core of Seall's own products. DNV GL type approval and certification against IEC 61174 Edition 4.0, IEC 62288 Edition 2.0, IEC 60945, and IHO S-52 underlie the regulatory moat.

The business operates across three primary customer segments — commercial fleets, workboats, and leisure — served through a hybrid direct sales and global distributor/installation partner channel (most recently augmented by an April 2024 distribution agreement with Mackay Marine). Revenue is generated primarily through one-time perpetual software licenses (ECDIS, ECS, Passage Planner), hardware-bundled sales (SEALL TAB on ruggedized Windows tablets, legacy ECDIS on Hatteland panel PCs), per-system SDK royalties from OEM licensees, and bespoke development services. The ENC Kernel SDK is licensed to other maritime brands, powering an installed base described as 60,000+ end-product licenses and 29,000+ SDK licenses globally. Distribution is supported by free IMO-compliant Computer-Based Training (CBT) included with every ECDIS sale.

The product roadmap centers on the maritime industry's transition from S-57/S-63 to the S-100 standard, with Seall collaborating directly with the UK Hydrographic Office (UKHO) and SHOM on official S-100 datasets and operating a public S-100 trial portal. The company is founder-owned (Des Neill, CEO; Barry Booth, CCO), operated with 1-10 employees, has no disclosed external institutional funding, and competes in a regulated market where type approval and standards conformance are the primary barriers to entry.

Name

Seall ECDIS

Legal name

Seall ECDIS Limited

Website

https://seallecdis.com

Company type

Private

Founded year

2017

Operating status

Operating

Headcount range

1–10 employees

Short description

Seall ECDIS is a UK-based maritime navigation software company that develops type-approved ECDIS, Passage Planner, ECS, and SEALL TAB products built on a proprietary ENC Kernel SDK, serving commercial fleets, workboats, and leisure markets globally through direct sales and a distributor network.

Ownership category

akta.pro rank

Product category

Maritime Navigation Software

NAICS

Navigational Services to Shipping (488330)

akta.pro primary industry

Marine Cybersecurity & Networked OT Systems (IMAJAJAH)

Keywords

• Maritime navigation software
• ECDIS solutions
• Electronic chart systems
• Passage planning software
• Type-approved navigation

Headquarters

HQ city

Aberdeen

HQ country

United Kingdom

HQ region

Europe

Offices1 record

Markets served

GTM type

B2B

Offering type

Software

Cost components

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

Revenue model

1. ECDIS Navigation Software: Sale of type-approved ECDIS systems, including hardware bundles with Hatteland panel PCs and standalone software licenses. Includes T21 and T22 ECDIS models.
2. ECS Software Solution: Software-only ECDIS solution sold as perpetual license. Runs on standard Windows PCs instead of specialized hardware, providing cost-effective alternative to traditional ECDIS.
3. Passage Planner Software: Voyage planning and route management software with features including ENC updates, AIS overlay, and ECDIS integration. Sold as standalone or bundled solution.
4. SEALL TAB Tablet Solution: Portable navigation tablet bundled with ruggedized cover and navigation software. Includes AIS pilot plug integration and route planning capabilities.
5. ENC Kernel SDK Licensing: Licensable navigation kernel sold to OEMs and maritime developers for integration into their ECDIS products. Per-system licensing model with secure license server. Powers products from recognized maritime brands globally.
6. Bespoke Development Services: Custom development projects leveraging expertise in maritime technology, navigation and GNSS positioning.

Go-to-market motion2 records

Distribution channels5 records

Marketing channels6 records

Core offering

SEALL develops and sells type-approved maritime navigation software built on a proprietary ENC Kernel SDK. The product suite includes SEALL ECDIS, a software-only ECS, a standalone Passage Planner, and the SEALL TAB portable navigation tablet, with full support for S-57, S-63 and the emerging S-100 chart standards. The same ENC Kernel is licensed as an SDK (NuGet package) to maritime OEMs for integration into their ECDIS, USV, simulator and situational-awareness products.

Product overview

SEALL provides a unified portfolio of maritime navigation software solutions centered on their proprietary ENC Kernel SDK technology. The product suite comprises five core offerings: ENC Kernel SDK (the licensable, type-approved navigation kernel powering all products), SEALL ECDIS (type-approved ECDIS hardware/software system), ECS (Electronic Chart System as a software-only alternative), Passage Planner (standalone voyage planning software), and SEALL TAB (portable tablet-based navigation). The ENC Kernel SDK serves as the foundational engine for all products and is also licensed to other maritime technology companies. SEALL offers FREE ECDIS training compliant to IMO requirements, and the S-100 ECDIS software provides next-generation navigation capabilities developed in collaboration with UKHO and SHOM. The company powers over 60,000 licensed products globally and has distributed over 29,000 ENC Kernel SDK licenses. As of 2025, SEALL is expanding globally through partnerships including Mackay Marine.

Differentiator

Problem solved

Functional benefit

Brands

• ENC Kernel SDK: A modular, licensable navigation kernel designed for maritime developers, ECDIS manufacturers, USV systems, simulators, and advanced situational awareness systems. It is at the core of all products and is described as the 'best technical solution in its field'.
• Passage Planner
• ECDIS
• SEALL TAB
• SEALL ECS

Products and services

• ENC Kernel SDK Modular, licensable navigation kernel at the core of all SEALL products, supporting S-57, S-63 and emerging S-100 products (S-101, S-102, S-104, S-111). Built in C#/.NET with SkiaSharp GPU-accelerated graphics, MVVM architecture and cross-platform deployment across Windows, Linux and Android; distributed as a NuGet package for OEM integration into ECDIS manufacturers, USV systems, simulators and situational awareness platforms.
• SEALL ECDIS Type-approved Electronic Chart Display and Information System (ECDIS) DNV type-approved and designed to be one of the simplest ECDIS systems to operate on the market. Built on the proprietary ENC Kernel SDK, it combines full sensor integration for SOLAS-compliant bridge navigation with IEC 61174 / IEC 62288 / IEC 60945 and IHO S-52/S-57/S-63/S-100 compliance.
• SEALL ECS (Electronic Chart System) Software-only Electronic Chart System offering the same high performance as a tablet-based system but running on a standard Windows 7+ PC, with multi-touch screen compatibility and full ECDIS and Passage Planning feature set. Built for cost-conscious operators who need IEC 61174 Edition 4, IEC 62288 Edition 2 and IHO S-52 Presentation Library Edition 4.0 compliant navigation without purchasing dedicated hardware.
• Passage Planner Standalone voyage planning software that enables mariners to access up-to-date information for safe route planning and destination arrival. Features include A2B shortest-path route generation, advanced routing, ENC updates, AIS/ARPA overlay, route validation, optional weather integration, optional ADP (Admiralty Digital Publications) interface and integration with all major ECDIS brands via an easy integration port. DNV type-approved and designed to meet IEC 61174 Edition 4.0 standards for SOLAS voyage and passage planning compliance.
• SEALL TAB Portable navigation tablet delivered on a Windows Surface 7 tablet with ruggedized cover, providing high-performance chart visualisation, route planning and validation, ENC updates, and AIS pilot plug integration via Wi-Fi, Bluetooth or cable. Designed for portability, multi-touch interaction and instant access to navigation data from anywhere on the vessel, targeted at leisure sailors, workboat crews and pilots.
• S-100 ECDIS Software S-100 compliant ECDIS software that enables users to download official S-100 datasets (in collaboration with UKHO and SHOM) and explore the next-generation maritime navigation framework, including S-101 ENC, S-102 bathymetry, S-104 water level and S-111 surface current products. Positioned as the forward-compatible evolution of SEALL ECDIS under the IHO S-100 universal hydrographic data model.
• Bespoke Development Services Custom maritime software development projects leveraging SEALL's expertise in maritime technology, navigation and GNSS positioning for partners and customers with specialised requirements not met by the off-the-shelf ECDIS, ECS, Passage Planner, TAB or SDK products.

Quantifiable outcome

• 60,000+ licensed products operating globally
• +4 more outcomes

Named customers4 records

Segments3 records

Ideal customer profiles3 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Integration9 records

Feature4 records

Partnerships

Five partnerships are on record, tiered core and minor.

• Mackay MarinecoreChannel Partner/ Reseller/ Distributor · 1 April 2024Aberdeen, Scotland-based Seall secured a partnership with global marine electronics and service provider Mackay Marine in April 2024 to distribute Seall's suite of innovative software solutions and products to the maritime industry as they expand their worldwide footprint.
• UKHO (United Kingdom Hydrographic Office)coreStrategic or Co-development PartnerCollaboration with UKHO and SHOM to download official S-100 datasets and explore them in Seall's ECDIS software. SEALL is a UKHO S-100 Technical Partner.
• UKHO (United Kingdom Hydrographic Office)coreTechnology or IntegrationCollaboration with UKHO and SHOM to download official S-100 datasets and explore them in Seall's ECDIS software. SEALL is a UKHO S-100 Technical Partner, participating in S-100 Technical Partner Conference.
• HCT Group (Human Centered Technology Group)coreOthersSEALL is part of the Human Centered Technology Group, which includes Intellicore. The parent company provides strategic direction and operational support.
• IntellicoreminorOthersPart of the HCT Group ecosystem, providing technology solutions alongside SEALL.

Scale indicators5 records

Recent moves6 records

Expansion highlights6 records

Direct peers

• Raymarine (Teledyne FLIR): Raymarine supplies marine electronics including ECDIS and chart displays, particularly strong in the leisure and light commercial sectors. Comparable to Seall where the two segments overlap (leisure sailors and small commercial operators).
• Navtor: Navtor sells digital navigation, chart updating, and passage planning software to commercial shipping. Comparable to Seall's Passage Planner and ECS software offerings as a navigation-software specialist.
• OSI Maritime Systems: OSI supplies integrated navigation and tactical navigation systems (ECDIS, WECDIS) primarily to naval and military customers with overlap into commercial ECDIS. Comparable as a type-approved navigation software developer.
• Wärtsilä (TRANSAS ECDIS): Wärtsilä acquired TRANSAS, one of the largest ECDIS vendors with a dominant installed base across global commercial shipping. Competes head-to-head with Seall in type-approved ECDIS, passage planning, and fleet navigation systems.
• JRC (Japan Radio Co.): JRC produces JANUS/TERRADEX ECDIS systems used extensively in commercial shipping. Competes with Seall in type-approved ECDIS for SOLAS-regulated vessels globally.
• Kongsberg Maritime: Kongsberg's MARINE ECDIS and navigation systems serve offshore, naval, and merchant fleets worldwide. Direct competitor to Seall in type-approved ECDIS for commercial and offshore vessels.
• Furuno: Furuno is a major Japanese manufacturer of marine electronics including type-approved ECDIS (FMD-3x00 series), with deep penetration in commercial fleets globally. Directly comparable as an ECDIS hardware/software vendor serving the same SOLAS-regulated market.
• ChartWorld: ChartWorld provides ECDIS, ECS, and digital chart services. A direct peer in the navigation software and chart-update layer of the market where Seall competes.
• MARIS: MARIS is an independent ECDIS and maritime navigation software vendor targeting commercial shipping operators. Direct competitor offering type-approved ECDIS and passage planning software similar to Seall.

Broad incumbents

• Teledyne Technologies: Parent of Raymarine and a broader portfolio of marine and subsea instrumentation. A large incumbent that competes with Seall in marine electronics via Raymarine while also operating in adjacent maritime subsea and survey markets.

Market position

Strengths4 records

Weaknesses4 records

Competitive moat6 records

Key risks6 records

Key highlights7 records

Customer concentration

• Xx.com/SeallEcdis
• Facebookfacebook.com/SeallECDISLtd
• LinkedInlinkedin.com/company/seall-ecdis-limited

Compliance11 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles2 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 Seall ECDIS