Poseidon

What Poseidon does

Poseidon (legally Poseidon JG Ltd) is a privately-held UK marine training and yacht services company operating as an RYA-accredited training centre, with its registered corporate address in London and operational base in Southampton. The company runs a dual-offering business: formal RYA-certified marine training spanning powerboating (Level 2 through Advanced and Instructor), personal watercraft / jet ski proficiency and instructor courses, navigation theory for Yachtmaster Offshore and Coastal Skipper, private motor yacht and powerboat tuition, and a global onboard Super Yacht RYA PWC Instructor course; alongside yacht ownership support services including maintenance and refits, professional skipper and crew provision, yacht management, and sailing yacht charter. Operations are delivered through a mobile field model across more than ten Solent locations — Southampton, Swanwick, Hamble, Itchen River, Portsmouth, Lymington, Port Solent, Gosport, Bucklers Hard, and Beaulieu — with practical on-water instruction run from the Southampton Water Activities Centre (SWAC) and worldwide onboard delivery for super yacht crew.

The training curriculum rests on RYA accreditation and standardised syllabus delivery, with shore-based theory courses sourced through a Navathome.com partnership and reservations handled through a Checkfront-powered online booking system at poseidon.checkfront.com. There is no indication of a proprietary software product, AI/ML platform, or data assets; the technology layer is operational (booking, an SEO-optimised content marketing website, contact forms) rather than productised. Marketing channels are concentrated in organic search, direct contact, and the RYA Training Centre directory.

Poseidon monetises through per-course and per-service fees under a quote-based, non-publicly-disclosed pricing model, with a £20 administrative charge applied to course date changes and cancellations. Customer segments span individual powerboating and PWC certification seekers, instructors seeking qualification, super yacht owners and crew requiring worldwide onboard training, and yacht / boat owners consuming maintenance, management, skipper and charter services. The company has approximately 73 employees, no external venture or institutional funding, no parent company or subsidiaries, and addresses a primarily UK Solent customer base with selective global reach through the super yacht channel.

Name

Poseidon

Legal name

Poseidon JG Ltd

Website

https://poseidon-marine.co.uk

Company type

Private

Operating status

Operating

Headcount range

51–100 employees

Short description

Poseidon is a UK-based, RYA-accredited marine training and yacht services company offering powerboating, personal watercraft, and navigation courses alongside yacht maintenance, management, skipper/crew, and charter services to consumers and super yacht owners in the Solent and globally.

Ownership category

akta.pro rank

Product category

Marine Training and Yacht Services

NAICS

Ship Building and Repairing (336611), Support Activities for Water Transportation (4883)

SIC

Ship & Boat Building & Repairing (3730)

akta.pro industry

PRIMARYTLAKAKAD

Yacht & Recreational Boat Service & Refit

Transportation & Logistics/Vehicle & Equipment Maintenance, Repair & Services (MRO)/Marine Vessel Maintenance & Repair (Shipyards)

SECONDARYTHAJAJAB

Private Charters & Yacht Experiences (Crewed, Bareboat, Day Charters)

Travel & Hospitality/Tours, Attractions & Experiences/Marine & Water Experiences (Boat Tours, Diving, Snorkeling, Fishing)

Keywords

• RYA marine training
• Powerboat courses
• Jet ski instruction
• Yacht management services
• Boat maintenance Solent

Headquarters

HQ city

London

HQ country

United Kingdom

HQ region

Europe

Offices11 records

Markets served

GTM type

B2C

Offering type

Services

Cost components

Personnel, Operations, Marketing or Sales, Infrastructure

Revenue model

1. Marine Training Courses: RYA-accredited courses for powerboating, personal watercraft (jet ski), navigation, and instructor qualifications. Prices vary by course type and duration.
2. Yacht Maintenance and Repairs: Maintenance, repairs, re-fits, warranty work, fabrication, and engineering services for yachts and boats.
3. Yacht Management: Ongoing management services for yacht owners to support boat ownership.
4. Skipper and Crew Services: Provision of qualified skippers and professional crew for vessels.
5. Boat Charters: Sailing yacht charter services.

Pricing tiers

Go-to-market motion1 record

Distribution channels4 records

Marketing channels4 records

Core offering

Poseidon is an RYA-accredited marine training centre and yacht services provider operating in the Solent and onboard super yachts globally. It sells RYA-certified powerboating, personal watercraft (jet ski), navigation/Yachtmaster theory, and instructor certification courses, supplemented by yacht maintenance, refits, management, skipper and crew provision, and sailing yacht charters. Services are delivered through a combination of fixed RYA venues, mobile Solent operations, and onboard customer vessels.

Product overview

Poseidon is a marine training and yacht services company offering RYA-accredited courses and professional yacht services in the Solent area. The product portfolio consists of two main offerings: Marine Training courses (including Personal Watercraft/Jet Ski courses, Powerboating courses, Navigation/Yachtmaster theory courses, Instructor certification courses, and private tuition) and Yacht Services (maintenance, professional crew/skippers, yacht management, and charters). The training arm provides certifications from RYA (Royal Yachting Association) for various skill levels, while the services arm supports boat ownership through maintenance, crew provision, and management. The company also offers supplementary resources like tidal curves and wind forecasts, and facilitates commercial endorsements for professional skippers.

Differentiator

Problem solved

Functional benefit

Products and services

• RYA Personal Water Craft Proficiency Course (Jet Ski) RYA Personal Watercraft Proficiency course for novices and experienced jet ski users, delivered in the Southampton and Solent areas. Intended for individual jet ski owners and enthusiasts seeking recognised certification.
• RYA PWC Instructor Course Three-day RYA Personal Watercraft Instructor course that builds on existing jet ski experience to develop learners into fully competent jet ski instructors. Targeted at individuals pursuing a PWC instructor licence.
• Super Yacht RYA PWC Instructor Course Three-day RYA PWC Instructor course delivered onboard super yachts, tailored to the specific PWCs being used on board, with support for local law and RYA guidance compliance. Designed for super yacht crew and owners globally.
• RYA PWC Instructor 1-Day Conversion Course One-day conversion course for individuals seeking to obtain a jet ski instructor licence by building on prior relevant qualifications.
• RYA Powerboat Level 2 Entry-level RYA powerboating certification course covering essential boat handling and safety skills. Targeted at novice powerboaters seeking a recognised qualification.
• RYA Powerboat Intermediate Intermediate RYA powerboating course that builds on Level 2 skills for more challenging conditions.
• RYA Advanced Powerboat Advanced RYA powerboating course covering high-speed boat handling, navigation, and passage planning.
• RYA Advanced Powerboat Exam Certificate of Competence Examination leading to an MCA/RCB Certificate of Competence for advanced powerboat operation.
• RYA Powerboat Instructor Course Instructor training course for qualified powerboat operators to teach RYA powerboat courses.
• RYA Advanced Powerboat Instructor Course Instructor certification for teaching RYA Advanced Powerboat courses.
• RYA Yachtmaster Offshore Theory Shore-based theory course covering advanced navigation, meteorology, and passage planning for offshore passages.
• Online RYA Yachtmaster Offshore / Coastal Skipper Theory Online theory course delivered in partnership with Navathome.com for Yachtmaster Offshore and Coastal Skipper certification.
• Private Motor Yacht Tuition One-on-one tuition for motor yacht operation tailored to individual skill development.
• Private Powerboat Tuition Personalised powerboat training sessions for individual skill development.
• Yacht Maintenance and Refit Professional yacht maintenance, repairs, refits, warranty work, fabrication, and engineering services covering rigging, paint, anti-foul, and general engineering work. Mobile across the Solent.
• Professional Skippers and Crew Provision of qualified skippers and professional crew for yacht operations and deliveries, including yacht delivery services.
• Yacht Management Comprehensive yacht management services to support vessel ownership, including ongoing administration and operational support.
• Sailing Yacht Charter Charter services for sailing yachts in the Solent area.
• RYA Commercial Endorsement Assistance Assistance with the RYA Commercial Endorsement process required for professional skipper work on commercial vessels.

Segments4 records

Ideal customer profiles4 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature3 records

Partnerships

Two partnerships are on record, tiered core.

• Royal Yachting Association (RYA)coreStrategic or Co-development PartnerPoseidon is an accredited RYA Training Centre. This partnership enables the delivery of RYA-recognised courses including Powerboat, Personal Watercraft, and Yachtmaster qualifications. RYA accreditation provides standardised syllabus, quality assurance, and recognised certification for graduates.
• Southampton Water Activities Centre (SWAC)coreStrategic or Co-development PartnerPoseidon operates at the SWAC venue in Southampton as an RYA training site. This partnership provides access to quality training facilities and equipment for powerboating and personal watercraft courses.

Scale indicators2 records

Recent moves5 records

Expansion highlights4 records

Broad incumbents

• Sunsail: Global yacht charter operator with an in-house RYA training centre delivering flotilla and shore-based courses in the Solent and Mediterranean. Comparable to Poseidon's charter and training arms at greater scale and wider geographic footprint.

Direct peers

• Camper & Nicholsons: Historic superyacht sales, charter, management, and new-build services firm. Comparable to Poseidon's onboard superyacht training and yacht management offerings for high-net-worth owners globally.
• Burgess Yachts: International superyacht brokerage, management, and charter house. Comparable to Poseidon's superyacht crew training and yacht management services at significantly larger scale and global footprint.
• Ancasta Group: UK and European yacht sales, brokerage, and after-sale services business with Solent presence. Overlaps with Poseidon's yacht management, maintenance, and crew provision services for similar boat-owner customers.
• UK Sailing Academy (UKSA): RYA training centre on the Isle of Wight offering powerboat, yachtmaster, and watersports instructor courses alongside youth programs. Comparable in course mix and Solent-region presence, competing for the same entry-to-professional marine training customers.
• Hamble Yacht Services: Full-service yacht maintenance, repair, and refit yard in Hamble, Solent. Directly comparable to Poseidon's yacht services business with overlapping rigging, paint, anti-foul, and engineering offerings for the same client base.
• Hamble School of Yachting: RYA-accredited training centre based in Hamble within the Solent, delivering powerboat, sail, and yachtmaster courses. Operates in the same geographic market with an overlapping course catalogue, directly competing for Solent-based marine training customers.
• Imperial Yachts: Monaco-based superyacht brokerage, management, and crew services company. Comparable to Poseidon's onboard superyacht crew training proposition, serving the same internationally mobile superyacht clientele.

Others

• Princess Yachts: UK luxury motor yacht manufacturer with an owner-services and training programme. Adjacent to Poseidon through shared customer base of Princess yacht owners requiring crew training and onboard support, but not a direct competitor in marine training delivery.

Regional players

• Solent Motor Yachts: Independent Solent-based motor yacht brokerage, servicing, and tuition provider. Comparable to Poseidon's private motor yacht tuition and yacht services offerings in the same regional market.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat4 records

Key risks6 records

Key highlights6 records

Customer concentration

• LinkedInlinkedin.com/company/poseidonjg

Revenue estimate

Valuation estimate

Number of profiles

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 Poseidon