What Calshot does

Calshot operates a multi-discipline shipyard at James' Wharf on the River Itchen in Southampton, delivering restoration, custom build and design, joinery, metal fabrication, electrical, mechanical, and paint and finishing services from a single integrated workshop. The site spans more than 2.5 acres with over 6,000 square metres of covered workshops and houses Southampton's last remaining operational dry dock, supplemented by in-house spray booth, abrasive blasting and ultra-high-pressure water jetting facilities. The team of 44 — including joiners, engineers, shipwrights, welders, painters, electricians, plumbers and designers — works across both marine vessels and land-based projects for private clients, architects, designers, developers and ship owners. Notable commissions include heritage vessel restorations (M/Y Alicia, Davenham, Rita), hospitality fit-outs (The Rex Deli in Mayfair, Soho House's Hudson Yards office) and commercial office work (Cadogan Garden Offices for Marshall Wace), with international delivery capability including containerised shipments from the Southampton yard.

The business is run under the legal entity The Woodshack Limited, trading as Calshot, a private limited company incorporated in England. Revenue is generated on a project-commission basis with bespoke quotations: materials are billed at cost plus a 25% markup, labour rates are quoted on request, quotations are valid for 30 days, and invoices are payable within 14 days with interest on late payment. The Calshot Editions sub-brand extends the workshop's craft into a made-to-order collection of furniture, fittings and hardware. The company has no disclosed external funding, no parent company, and operates as an independent private business.

Name

Calshot

Legal name

The Woodshack Limited

Website

https://calshot.org

Company type

Private

Operating status

Operating

Headcount range

11–50 employees

Short description

Calshot is a Southampton-based multi-discipline shipyard and workshop delivering marine restoration, bespoke joinery, fabrication, electrical, mechanical and paint services to private vessel owners, hospitality brands, architects and commercial clients across the UK, Europe and the US.

Ownership category

akta.pro rank

Product category

Marine Restoration and Bespoke Workshop Services

NAICS

Ship Building and Repairing (336611)

akta.pro primary industry

Retrofits, Upgrades & Compliance Conversions (Scrubbers, BWTS, Alternative Fuels, Energy-Saving Devices) (TLAHAMAI)

akta.pro secondary industry

Deck Fittings & Hardware (Bitts, Fairleads, Cleats, Anchors & Chains) (IMAJAIAK)

Keywords

• Marine restoration services
• Bespoke joinery fabrication
• Heritage vessel refit
• Architectural metalwork
• Shipyard dry dock services

Headquarters

HQ city

Southampton

HQ country

United Kingdom

HQ region

Europe

Offices1 record

Markets served

GTM type

B2B

Offering type

Services

Cost components

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

Revenue model

1. Project-Based Commissioned Work: Full project delivery from concept through to installation including restoration, bespoke joinery, fabrication, mechanical systems and electrical integration. Pricing based on cost plus 25% for materials, labour rates on request. Invoices payable within 14 days.
2. Calshot Editions: Collection of made-to-order designs including crafted furniture, custom fittings and hardware. Each piece built in workshops with same attention to detail as larger projects.

Pricing tiers

Go-to-market motion1 record

Distribution channels2 records

Marketing channels5 records

Core offering

Calshot is a modern shipyard and multi-discipline workshop at James' Wharf in Southampton that delivers commissioned restoration, bespoke joinery, metal fabrication, electrical, mechanical, and paint & finishing services for marine vessels and architectural projects from concept through installation. The yard combines traditional craft skills (joiners, shipwrights, welders, painters) with modern engineering to execute complex multi-trade projects for enterprise clients. Calshot Editions is a separate sub-brand offering made-to-order crafted furniture, custom fittings, and hardware built in the same workshops.

Product overview

Calshot is a modern shipyard offering a unified portfolio of services spanning restoration, custom build & design, joinery, metal fabrication, electrical, mechanical, and paint & finishing — delivered from concept through to installation under one roof. The company works across both marine vessels and land-based projects (residential, hospitality, commercial). Additionally, Calshot Editions provides a separate collection of made-to-order furniture, custom fittings and hardware that extends the yard's craftsmanship into standalone product offerings. All services draw on the yard's shared workshops, tradespeople and engineering capability to deliver complete, multidisciplinary commissions.

Differentiator

Problem solved

Functional benefit

Brands

• Calshot Editions: A collection of made to order designs, from crafted furniture to custom fittings and hardware. Each piece is built in the workshops with the same attention to detail found across the yard, combining craftsmanship, function and longevity.

Products and services

• Restoration Heritage and contemporary vessel and building restoration services, including full structural repair, component recreation, and preservation of original character while strengthening for continued use.
• Custom Build & Design Bespoke design and custom fabrication services working closely with clients and architects to develop concepts into buildable projects across marine and architectural environments.
• Joinery Bespoke joinery workshop combining large-scale capability with individual maker attention to detail, producing yacht interiors, architectural furniture, and large-scale panelled rooms using reclaimed and repurposed timbers.
• Metal Fabrication Structural and fine metalwork fabrication for marine and architectural projects, working across mild steel, high-strength steel, stainless steel, aluminium and bronze, producing tanks, staircases, seating and bespoke metalwork.
• Electrical Full electrical design, installation and commissioning services for marine and land-based projects, covering complex power management, control systems, navigation equipment and integrated entertainment packages.
• Mechanical Mechanical engineering services including full system installations and complex restorations, covering propulsion, piping, heating, cooling, fluid control and hydraulic systems for marine and architectural projects.
• Paint & Finishing Full range of surface preparation, coatings and decorative finishes across marine and architectural projects, including spray painting, brushing, blasting, patination and wood restoration using traditional techniques combined with modern coatings.
• Calshot Editions A collection of made-to-order designs including crafted furniture, custom fittings and hardware, built in the workshops with the same attention to detail as the yard's marine and architectural work.

Quantifiable outcome

• Delivered on time and to specification
• +1 more outcomes

Named customers7 records

Segments3 records

Ideal customer profiles3 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature3 records

Partnerships

Three partnerships are on record, tiered core and minor.

• Studio ReedcoreStrategic or Co-development PartnerInterior design studio collaborating with Calshot on the Cadogan Garden Offices project. Studio Reed designed the calm, residential-style workplace environment that Calshot delivered through full fit-out including joinery, steel fabrication, painting and detailing.
• Soho HousecoreImplementation/ SI/ Consulting PartnerSoho House provided concept designs for the New York Office project at Hudson Yards. Calshot developed working drawings, samples and prototypes, handling joinery, fabrication, paint, finishing and delivery of the two-floor workspace on the thirty-second floor.
• Tanera Restoration ProjectminorStrategic or Co-development PartnerCalshot worked as a major contributor to the Tanera island regeneration project, leading full joinery and interior restoration across multiple structures including cottages, barns, hangars and public spaces.

Scale indicators5 records

Recent moves6 records

Expansion highlights5 records

Direct peers

• Spirit Yachts: UK-based modern classic yacht builder producing bespoke wooden yachts with in-house craftsmanship. Comparable to Calshot for its specialist craft-led, multi-discipline approach to custom yacht projects.
• Pendennis Shipyard: UK-based superyacht refit, restoration and construction yard operating in Falmouth with comparable large-scale infrastructure, multi-discipline trades, and a focus on high-end yacht refit and new build. Closest direct comparable to Calshot's marine restoration and refit business.
• Lusben (Azimut-Benetti): Italian refit and shipyard services business within the Azimut-Benetti group, operating large refit facilities and heritage restoration capability. Comparable to Calshot in combining complex yacht restoration with high-end fit-out and engineering disciplines.
• Camper & Nicholsons: Long-established yacht services, refit and management group with yards in the Mediterranean and Caribbean. Comparable to Calshot as a heritage refit and superyacht services provider serving private clients.
• Berthon Boat Company: UK boatyard group with refit, new build and brokerage operations across multiple sites. Comparable to Calshot as a UK-based marine services group offering refit, restoration, and bespoke work in a multi-discipline setting.
• Fairlie Yachts: Specialist UK builder-restorer of classic and modern wooden yachts with strong heritage craftsmanship focus. Comparable to Calshot in niche positioning around heritage vessels and bespoke craft-driven restoration.
• Green Marine: UK boatyard group with heritage restoration capability and a multi-site footprint covering marine refit and boatbuilding. Comparable to Calshot as a UK-based specialist yard combining restoration with new build across multiple disciplines.
• Oyster Yachts: British luxury sailing yacht builder and refitter operating in Southampton, historically a near-neighbour and direct peer to Calshot for marine restoration, refit and custom yacht projects in the UK superyacht market.
• Royal Huisman: Dutch custom superyacht builder specialising in bespoke, high-end sailing and motor yachts, with deep multi-discipline in-house craftsmanship. Comparable to Calshot as a small, craft-led yard delivering fully bespoke projects to private clients.

Broad incumbents

• Amels: Large Dutch superyacht builder and refit operator within the Damen group, with significantly greater scale and broader portfolio. Comparable to Calshot at the product/customer level (bespoke superyachts and refits) but a much larger incumbent in the same space.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat4 records

Key risks6 records

Key highlights7 records

Customer concentration

• LinkedInlinkedin.com/company/calshot-group
• Instagraminstagram.com/calshot_group

Revenue estimate

Valuation estimate

Number of profiles

Profiles7 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 Calshot