Contact Details


5 Brighton Way
SN14 0YR

Philip Henderson

Technical Director

07592 511 446


James Hare

Business Director

07592 511 449


Information / Enquiries:


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Here you will find the latest information on our company and other interesting articles.

United Nations - Ambulance Boat

Following an initial approach from the UN Population Fund in 2017, H2NA have been proud to support the tender process and procurement of a new ambulance boat. Our involvement has included the provision of specialist consulancy services and expert naval architecture knowledge to support the United Nations Procurement Services Branch.


The vessel has now started the build phase and will provide humanitarian relief to the regions surrounding Tanzania from 2019.

(October 2018)

H2NA Director Elected RINA Fellow

James Hare has this month been elected a Fellow of the Royal Institution of Naval Architects (FRINA). This membership class represents a significant achievement that brings with it international recognition and professional status as a qualified, experienced, competent and committed professional. Fellows are restricted to those individuals that can demonstrate superior responsibility over an extended period of time to the satisfaction of the RINA Membership Committee.


This recognition continues H2NA's professional approach, underlined by all remaining staff being Chartered Members of RINA or working towards this level.

(September 2018)

Thames Barrier - H2NA Support Land & Water

H2NA worked with Land & Water for a fast turnaround stability analysis last week in connection with a project on the Thames Barrier.


Supporting such a company with a diverse range of projects can be technically challenging but always interesting. 

Full Land & Water News article presented here:

Linkedin Article

(July 2018)

Fagio II - Manor Marine

H2NA recently completed an extensive support package working alongside Manor Marine to realise the build of this versatile catamaran support vessel.


Certifying Authority approval has now been issued for the vessel's Inclining Experiment and Stability Information Book, both undertaken by H2NA Limited. The vessel is due to join its new operators in the near future.

(June 2018)

H2NA Privacy Notice

As an integral part of ensuring H2NA is compliant with General Data Protection Regulation (GDPR), the above document has now been developed by and made available to all staff as well as being published online.


Latest document version can be found here:

H2NA Privacy Notice

(May 2018)

Boojum Bay - Inclining Experiment & Stability Book

Part of H2NA's core work is the conduct of Inclining Experiments & production of Stability Information Books. The Boojum Bay is another example of how our in-house experts are able to delever often challenging packages of work on established vessels to prove compliance with current regulations.


Our team were able to undertake the necessary work, minimise disruption to the vessel owner and ensure rapid approval by the Certifying Authority.

(April 2018)

ISO9001:2015 Accreditation for H2NA Limited

Following successful audits by DNV GL, H2NA's Quality Management System has this month been recognised as compliant with ISO9001:2015.


This international standard has been sought with the aim of maintaining the high standards already demonstrated to existing customers. Our staff recognise an effective QMS is an important tool that can convey a professional approach to all work undertaken for our clients.

(April 2017)

Cyber Essentials - Achieved

H2NA has this month been independently audited with the results confirming compliance with the requirements of the Cyber Essentials Scheme.


Cyber Essentials is a Government backed, industry supported scheme to help organisations protect themselves against common online threats.

(April 2017)

RFA Diligence Inclining Experiment

H2NA complete the Inclining Experiment on this 8,000 tonne forward repair ship. This task, contracted by Cammell Laird Shipyard on behalf of the Ministry of Defence was completed over a period of 4 days in sub-zero temperatures.


With great support from the Maritime & Coastguard Agency, our senior Naval Architects secured Flag approval from the MCA in just 6 working days - an all time record for the Royal Fleet Auxiliary.

(January 2015)

Cammel Laird Completes Biggest Ever RFA Refit

Shipyard and specialist engineering services provider Cammell Laird has completed a £49.5m refit of the Royal Fleet Auxiliary (RFA) Fort Victoria. H2NA Limited is proud to have supported this project by successfully completing docking calculations, an LR Approved Inclining Experiment in addition to regenerating the vessels Stabilty Information Book. Analysis included intact and extensive damage stability studies.


Full Cammell Laird News article presented here:

(December 2014)