The Honourable Company of Master Mariners

What The Honourable Company of Master Mariners does

The Honourable Company of Master Mariners (HCMM) is a City of London Livery Company incorporated by Royal Charter (RC000221) in 1932, founded in 1926 by Sir Robert Burton-Chadwick. It operates as a professional membership organization serving Master Mariners from the Merchant Navy and Royal Navy, as well as individuals and corporations affiliated with the maritime industry. Patron is His Majesty King Charles III. The organization offers six membership tiers — Freedom, Livery, Member, Apprentice/Associate, Honorary, and Corporate — plus the Chartered Master Mariner (CMMar) chartership scheme administered in partnership with The Nautical Institute via a wholly-owned Registration Authority subsidiary. Additional offerings include a Mentoring Scheme (Cadet through command-track), a Young Officers' Committee pipeline, regional Outports (NE Scotland, Clyde, NE England, NW England, Bristol Channel, SW England), and the Howard Leopold Davis Charity (1172234) supporting seafarer welfare and maritime education.

The revenue model is subscription-based across individual memberships (rates vary by tier and disclosed in annual subscription documents), corporate memberships at £1,000 per annum, event fees (declaration ceremonies, luncheons, curry lunches, formal dinners), and the Centenary 100 Club at £5 per month. Distribution is community-led: prospective members complete an application, are interviewed by senior officers, reviewed quarterly by the Membership Committee, approved by The Court, and complete a formal declaration ceremony. The company is headquartered temporarily in Greenwich (No. 1, The Rubicon, 51 Norman Road, SE10 9QB) following its April 2023 departure from the floating livery hall HQS Wellington on the Thames. Paid staff comprise six individuals — the Clerk (Scott Hanlon), Assistant Clerk (Bill Collier), Finance Manager (Penny), and three Registration Authority personnel (Mike Jenkins, Kay Guest, Keith Lawrey) — supported by an extensive volunteer Court of Assistants.

Name

The Honourable Company of Master Mariners

Legal name

The Honourable Company of Master Mariners

Website

https://hcmm.org.uk

Company type

Private

Founded year

1926

Operating status

Operating

Headcount range

51–100 employees

Short description

The Honourable Company of Master Mariners is a City of London Livery Company, founded 1926 and chartered 1932, serving Master Mariners from the Merchant and Royal Navies through membership tiers, the Chartered Master Mariner scheme, mentoring, regional outport events, and maritime charitable work.

Ownership category

akta.pro rank

Headquarters

HQ city

London (Greenwich)

HQ country

United Kingdom

HQ region

Europe

Offices1 record

Markets served

GTM type

B2B

Offering type

Services

Cost components

Personnel, Operations, Marketing or Sales, Others

Revenue model

1. Membership Subscriptions: Annual membership subscriptions from individual members at various levels (Freedom, Livery, Member, Apprentice/Associate, Honorary). Subscription fees vary by membership category and are detailed in annual subscription documents.
2. Corporate Membership: Annual corporate membership fees from shipping companies, maritime organizations, and related businesses. Corporate membership provides networking benefits and access to the company's professional community.
3. Event Revenue: Revenue generated from social events, declaration ceremonies, luncheons, and other company-hosted functions. Members and guests pay attendance fees for these events.
4. Centenary 100 Club: Monthly contributions of £5 per month from members participating in the quarterly prize draw to fund centenary celebrations in 2026.

Pricing tiers

Go-to-market motion1 record

Distribution channels5 records

Marketing channels6 records

Core offering

The Honourable Company of Master Mariners is a City of London Livery Company that delivers professional membership services, chartership recognition (Chartered Master Mariner designation), mentoring, networking events, and charitable support for Master Mariners and the wider maritime industry. It operates individual professional memberships (Freedom, Livery, Member, Apprentice/Associate, Honorary) and corporate memberships, alongside the CMMar chartership programme run jointly with The Nautical Institute.

Product overview

The Honourable Company of Master Mariners is a City of London Livery Company that operates as a professional membership organization rather than a technology product company. Its offerings comprise six interconnected core services: membership at various professional levels (Freedom, Livery, Member, Apprentice/Associate, Honorary, Corporate), the Chartered Master Mariner Scheme for professional recognition, a Mentoring Scheme for career development, Events and Networking for professional gatherings, the Howard Leopold Davis Charity for maritime welfare, and a network of regional Outports. These services work together to support professional excellence, education, and charitable giving within the maritime industry.

Differentiator

Problem solved

Functional benefit

Brands

• Chartered Master Mariner Scheme (CMMar): Professional recognition scheme for high-achieving Master Mariners, granting postnominals CMMar, operated in association with The Nautical Institute.

Named customers9 records

Segments4 records

Ideal customer profiles3 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Partnerships

19 partnerships are on record, tiered core and minor.

• The Nautical InstitutecoreStrategic or Co-development Partner · 1 January 2013Strategic partnership for administering the Chartered Master Mariner scheme. The Nautical Institute handles administrative, auditing, and vetting functions for CMMar applications on behalf of the Honourable Company. The Registration Authority, a division of HCMM, provides governance and makes final recommendations to HCMM Court.
• UK Chamber of ShippingcoreGTM or Marketing PartnerThe company joined the UK Chamber of Shipping to highlight work for members and the wider maritime community. The Chamber represents nearly 200 shipping industry members contributing nearly £20bn annually to the UK economy.
• Merchant Navy Training BoardcoreStrategic or Co-development PartnerThe MNTB is represented on the Registration Authority for Chartered Master Mariners, contributing to standards for maritime professional qualifications.
• Ocean Youth Trust SouthminorStrategic or Co-development PartnerThe company continues to support Ocean Youth Trust South, a charity using adventure under sail for personal development of young people aged 12-25. Currently part-funding Staff Cadet Georgia's salary and training. The HCMM court of arms is displayed aboard their vessel Prolific.
• National ArboretumminorStrategic or Co-development PartnerA sundial commemorating 2,536 ships of the Merchant Navy and 32,000 merchant seamen who died in WWII was commissioned by the company at the National Arboretum. Funded by member subscription and formally opened in October 2001.
• Maritime Professional Council of the UK (MPC)minorStrategic or Co-development PartnerThe company shares MPC's Kind Leadership Report and supports industry efforts to improve leadership and wellbeing amongst seafarers through the MPC's research and webinar initiatives.
• Royal Fleet Auxiliary (RFA) Cardigan BayminorOthersAffiliation with RFA Cardigan Bay, a Bay-class Landing Ship Dock capable of amphibious operations. The ship supports Royal Navy deployments globally.
• Sea Cadets CorpsminorStrategic or Co-development PartnerAffiliation with Sea Cadets Corps, the oldest youth charity in the world offering adventure for 10-18 year olds. The company supports London Southern District Sea Cadets and each outport maintains additional affiliations.
• HMS SutherlandminorOthersAffiliation with HMS Sutherland, a Type 23 Frigate (the fastest in the Royal Navy) built on the Clyde and specializing in submarine hunting.
• The London Nautical SchoolminorStrategic or Co-development PartnerSchool affiliation providing a member who serves as School Governor. Captain John Freestone, Past Master and alumni of the school, serves in this role.
• George Green's SchoolminorStrategic or Co-development PartnerSchool affiliation providing a member who serves as School Governor. Commander Les Chapman RN serves as Governor on behalf of the company.
• Trinity House Vessel GalateaminorOthersAffiliation with THV Galatea, an 84m vessel designed for buoy handling, wreck marking, towing, and hydrographic surveying operated by Trinity House.
• Bahamas Maritime AuthorityminorStrategic or Co-development PartnerThe company supported BMA's Seafarer COVID-19 Welfare Survey initiative conducted with University of Washington School of Public Health to understand mental health needs of seafarers during the pandemic.
• Company of Master Mariners of AustraliaminorStrategic or Co-development PartnerInternational affiliation with sister organization for Master Mariners in Australia, listed among Links to other Maritime Organisations.
• NZ Company of Master MarinersminorStrategic or Co-development PartnerInternational affiliation with sister organization for Master Mariners in New Zealand, listed among Links to other Maritime Organisations.
• Company of Master Mariners of CanadaminorStrategic or Co-development PartnerInternational affiliation with sister organization for Master Mariners in Canada, listed among Links to other Maritime Organisations.
• Council of American Master Mariners, Inc. (CAMM)minorStrategic or Co-development PartnerInternational affiliation with American Master Mariners organization, listed among Links to other Maritime Organisations.
• Little Ship ClubcoreStrategic or Co-development PartnerVenue partnership for declaration ceremonies and events. The Little Ship Club in London hosts regular declaration ceremonies and curry lunches for the company.
• Wellington TrustcoreOthersFormer partnership with Wellington Trust for housing the company's floating livery hall HQS Wellington. The company departed in April 2023 due to safety concerns with the aging vessel.

Scale indicators4 records

Recent moves8 records

Expansion highlights5 records

Broad incumbents

• International Maritime Pilots' Association (IMPA): IMPA is the global professional body for maritime pilots, already listed as a corporate member of HCMM. Comparable as an international professional society serving senior maritime practitioners with advocacy and standards-setting functions, though scoped to pilots rather than Master Mariners broadly.
• The Worshipful Company of Shipwrights: A City of London Livery Company focused on the maritime sector, specifically shipbuilding, repair, and related marine industries. Comparable as another maritime City of London Livery Company with similar governance, ceremonial, charitable, and networking functions but oriented to a different maritime constituency.

Emerging players

• Maritime Industry Australia Ltd: An Australian industry body representing maritime employers, unions, and educators. Adjacent to HCMM as a national maritime advocacy organization with overlapping stakeholder base of seafarers and shipping companies, though structured as an employer/industry body rather than a professional membership organization.

Direct peers

• Royal Institution of Naval Architects (RINA): RINA is a long-established UK professional society for naval architects and marine engineers, offering chartered professional recognition (CEng, IEng) similar in structure to HCMM's CMMar. It is directly comparable as a chartered maritime professional body serving UK-based seafarer/technical communities.
• The Nautical Institute: The Nautical Institute is a UK-based international professional body for maritime professionals, analogous to HCMM in serving Master Mariners and nautical officers. It is HCMM's strategic partner for administering the CMMar scheme, making it the closest operational and mission peer.
• Institute of Marine Engineering, Science and Technology (IMarEST): IMarEST is a London-based international professional membership body for marine engineers, scientists, and technologists, granting Chartered Marine Engineer and similar designations. It is highly comparable to HCMM as a chartered maritime professional society with individual and corporate membership tiers.
• Council of American Master Mariners (CAMM): The US national organization for licensed Master Mariners, formally listed among HCMM's international links. Directly comparable in serving senior merchant marine officers with membership, advocacy, and professional standards functions.
• NZ Company of Master Mariners: The New Zealand sister organization for Master Mariners, formally affiliated with HCMM. Directly comparable as a national-level professional body serving senior merchant navy officers in a Commonwealth maritime jurisdiction.
• Company of Master Mariners of Canada: The Canadian sister organization for Master Mariners, formally linked to HCMM. Comparable as a national professional body serving senior merchant marine officers with similar charter, networking, and advocacy functions.
• Company of Master Mariners of Australia: The Australian sister organization for Master Mariners, formally affiliated with HCMM via the international Master Mariners' network. Directly comparable in mission, membership structure, and professional advocacy for senior mariners.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks6 records

Key highlights7 records

Customer concentration

• LinkedInlinkedin.com/company/honourable-company-of-master-mariners

Compliance2 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles9 records

Subsidiaries1 record

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 The Honourable Company of Master Mariners