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8 companies

Admiralty Charts and Publications

Taunton, Somerset, United KingdomUpdated May 2005

The UK Hydrographic Office (UKHO) is a world-leading centre for hydrography, delivering maritime navigation solutions and hydrographic data to support safe, secure, and efficient global trade.

C-Map

Mashpee,, Mass, United StatesUpdated May 2026

C-MAP produces vector-based electronic nautical charts and charting systems, providing precise and frequently updated navigation data worldwide.

C-Map Norway AS

Egersund, NorwayUpdated May 2026

C-Map Norway AS specializes in electronic and vector chart databases for maritime navigation.

CEACT Information Systems, Inc.

Wayne,, WV, United StatesUpdated Dec 2005

CEACT Information Systems, Inc. develops professional Inland ECDIS navigation software used by leading barge companies for enhanced safety and efficiency.

Datema Delfzijl

Delfzijl, NetherlandsUpdated Apr 2008

Datema Delfzijl, part of the Nautical Safety Group since 1955, is a multidisciplinary company specializing in nautical safety, data, and compliance solutions for ships and shipping companies in the Netherlands and globally.

Nautical Technologies, Ltd.

Bangor, Maine, United StatesUpdated Mar 2001

Nautical Technologies, Ltd. provides CAPNMaptech® marine digital navigation software featuring NOAA and U.S. Army Corps of Engineers charts, AIS compatibility, autopilot support, and trip planning tools for professional mariners.

The United Kingdom Hydrographic Office

Taunton, Somerset, United KingdomUpdated Feb 2005

The United Kingdom Hydrographic Office (UKHO) is a world leading centre for hydrography, delivering data and expertise for safe, secure, and thriving oceans through innovative maritime navigation solutions.