Seaworks
Seaworks is a privately held New Zealand marine services company providing submarine cable installation, ROV operations, vessel charter, and salvage services to government and enterprise clients across New Zealand and the South Pacific.
- Company typePrivate
- Founded1981
- HeadquartersWellington, New Zealand
- Headcount11–50
- GTM typeB2B
- OfferingServices
What Seaworks does
Seaworks Ltd is a privately held New Zealand marine services company founded in 1981 and headquartered in Wellington. The company supplies the country's largest fleet of specialist marine vessels — including the DP2 Seamaster, DP1 Seaworker, MV Southern Cross, MV Seasurveyor, and several workboats — alongside two ROVs: the Quasar-6 (New Zealand's only permanent hydraulic work-class ROV, 3,000m depth rated) and the H800 observation-class ROV (1,000m depth rated). Service offerings span submarine cable installation and maintenance, subsea inspection and intervention, energy and renewables support, salvage, environmental surveys, film and television production support, aquaculture, and integrated diving solutions.
The company operates almost exclusively through direct enterprise and government engagement, with pricing determined by project scope. Long-term anchor relationships include Transpower (continuous Cook Strait cable inspections since 1991), Rocket Lab (Electron booster recovery missions), Chorus, Southern Cross NEXT, Maritime New Zealand, MBIE, and the Department of Conservation. The firm has assembled a partner ecosystem through equity stakes in Western Work Boats, Discovery Marine Limited, Marine Services NZ, and Shadowland Expeditions, plus a joint venture with Australia's Bhagwan Marine that operates the DP2 Seamaster across the Tasman Sea.
Seaworks is led by CEO Tim Brown and Chairman Bill Day, employs 11-50 people, holds triple-ISO certification (Quality, Health, Safety, Environment), and has completed 700+ projects representing 1,800+ km of submarine cable installed and 3,000+ km of inspections — more than any other New Zealand subsea operator. Revenue is not publicly disclosed.
Seaworks firmographics
Firmographics- Name
- Seaworks
- Legal name
- Seaworks Ltd
- Website
- https://seaworks.co.nz
- Company type
- Private
- Founded year
- 1981
- Operating status
- Operating
- Headcount range
- 11–50 employees
- Short description
- Seaworks is a privately held New Zealand marine services company providing submarine cable installation, ROV operations, vessel charter, and salvage services to government and enterprise clients across New Zealand and the South Pacific.
- Ownership category
- akta.pro rank
Seaworks industry classification
Industry- Product category
- Marine Services
- NAICS
- Support Activities for Water Transportation (4883), Ship Building and Repairing (336611)
- SIC
- Services-Miscellaneous Equipment Rental & Leasing (7350), Ship & Boat Building & Repairing (3730)
- akta.pro primary industry
- Marine Service Provider Coordination (Diving, Inspection, Class/Survey Support) (TLAHAJAI)
- akta.pro secondary industries
- Underwater Hull Services (Diving, In-Water Cleaning, Propeller Polishing, Inspection) (TLAHAMAL), Emergency Towage & Rescue (Refloating, Grounding Response) (IMAJANAB), Underwater Hull Inspection, Cleaning & Propeller Services (TLAKAKAJ)
Keywords
Where Seaworks is headquartered
LocationHeadquarters
- HQ city
- Wellington
- HQ country
- New Zealand
- HQ region
- Oceania
Offices2 records
Markets served
Seaworks business model
Business model- GTM type
- B2B
- Offering type
- Services
- Cost components
- Personnel, Operations, Infrastructure, Supply Chain
Revenue model
- Vessel Charter and Supply: Charter of specialist marine vessels including ROV support vessels, offshore vessels, patrol vessels, workboats, survey vessels, and cable lay vessels to clients across various sectors
- ROV Supply and Operations: Provision of remotely operated vehicles including observation and work-class ROVs with trained pilot technicians for subsea inspection, intervention, and survey operations
- Marine Services and Project Work: Integrated marine solutions including submarine cable installation and maintenance, salvage operations, environmental surveys, and specialist project support services
- Vessel and Equipment Sourcing: Expertise in sourcing vessels to meet specific project requirements, providing advisory and procurement services for marine equipment needs
Go-to-market motion1 record
Distribution channels2 records
Marketing channels3 records
Seaworks product offering
Product offeringCore offering
Seaworks is a marine services company based in New Zealand that provides vessel charter, ROV (Remotely Operated Vehicle) operations, submarine cable installation, and other marine services to enterprise and government clients.
Product overview
Seaworks operates as a marine services company offering a fleet of specialist vessels and ROVs for charter, along with comprehensive marine solutions. The fleet includes dynamically positioned vessels (DP1 Seaworker, DP2 Seamaster), research/survey vessels (MV Southern Cross, MV Seasurveyor), patrol vessels (MV Seapatroller), and workboats (MV Star Keys, MV Tranquil Image). The ROV fleet comprises Quasar-6 (New Zealand's only permanent hydraulic work-class ROV with 3,000m depth capability) and the H800 observation-class ROV (1,000m depth). Service offerings span submarine cable installation/maintenance, subsea operations with ROV inspection and intervention, energy and renewables support, marine salvage, environmental services, film production support, aquaculture support, and integrated diving solutions. The company holds triple-ISO certification (ISO 9001, ISO 14001, ISO 45001) for quality, environmental, and occupational health and safety management.
Differentiator
Problem solved
Functional benefit
Products and services
- Vessel Charter
- ROV Operations
- Submarine Cable Installation
Quantifiable outcome
- 700+ jobs completed across various marine service sectors
- +4 more outcomes
Companies that use Seaworks
Customer profileNamed customers12 records
Segments6 records
Ideal customer profiles1 record
Seaworks technology and API
TechnologyTechnology focussed No
API detail
- Has API
- No
- API docs
- API detail
Core technology
AI maturity
App detail
Feature7 records
Seaworks partnerships and signals
Strategic signalPartnerships
Eight partnerships are on record, tiered core and minor.
- Western Work BoatscoreSeaworks is a partner and shareholder in Western Work Boats, a key supplier of small to medium sized workboats in New Zealand, providing additional vessel capacity and capabilities.
- Discovery Marine Limited (DML)coreSeaworks is a partner and shareholder in Discovery Marine, New Zealand's leading hydrographic surveying company, collaborating on marine survey and data acquisition projects.
- Marine Services NZ (MSNZ)coreSeaworks is a partner and shareholder in Marine Services NZ, specialists in screw anchors, moorings, jetties and construction diving, collaborating on aquaculture and mooring projects.
- Shadowland ExpeditionsminorSeaworks is a partner in Shadowland Expeditions, which provides luxury overnight expeditions in the heart of Dusky Sound, offering complementary marine tourism experiences.
- Bhagwan Marine (Australia)coreSeaworks joint venture partner in Australia operating the DP2 Seamaster vessel, extending capabilities across the Tasman Sea and providing international marine services through the Bhagwan Seaworks Marine joint venture.
- Marine Services New ZealandcoreWorking with partner company Marine Services New Zealand, Seaworks offers comprehensive aquaculture services including screw-anchor design, SALM buoy installation, and marine farm installation support.
- Discovery MarinecorePartnering with Discovery Marine, Seaworks provides aquaculture operators with comprehensive services including multi-beam echosounder surveys and seabed classification.
- Preferred Diving ContractorscoreSeaworks works closely with preferred diving contractors to deliver SCUBA and SSBA diving operations, providing integrated subsea solutions combining ROV and diving capabilities.
Scale indicators8 records
Recent moves6 records
Expansion highlights6 records
Seaworks competitors and assessment
Company assessmentPeers
Broad incumbents
- Subsea 7: Global subsea construction and SURF contractor with vessel fleet and ROV operations. Comparable in submarine cable installation, subsea construction support, and offshore services.
- DOF Subsea: Global subsea contractor operating a large fleet of offshore vessels, ROVs, and subsea engineering services. Overlaps with Seaworks' vessel charter, ROV, and subsea inspection offerings at significantly larger scale.
Direct peers
- Neptune Marine Services: Australia/NZ-based subsea inspection, ROV, and offshore service provider. Directly comparable offering in subsea engineering, inspection, intervention, and offshore support across Australasia.
- Calibre Group: Australia/NZ engineering and asset services contractor with marine, subsea, and offshore capabilities. Comparable integrated marine services model serving energy, defence, and infrastructure clients.
- Bhagwan Marine: Australian offshore support vessel operator and JV partner in Bhagwan Seaworks Marine. Directly comparable business model — vessel and ROV supply for offshore energy, subsea, and renewables — and operates the DP2 Seamaster jointly with Seaworks.
- Western Work Boats: New Zealand workboat supplier and Seaworks' equity partner. Closely comparable vessel charter and marine services operation in the NZ coastal market.
- Discovery Marine Limited (DML): New Zealand's leading hydrographic surveying company and Seaworks equity partner. Directly comparable in marine survey, hydrographic data acquisition, and subsea support services.
Market position
Strengths5 records
Weaknesses5 records
Competitive moat5 records
Key risks6 records
Key highlights7 records
Customer concentration
Seaworks social profiles
Digital presenceSeaworks financial estimates
Financial estimateRevenue estimate
Valuation estimate
Seaworks leadership team
Management profileNumber of profiles
Seaworks funding detail
Funding detailFunding overview
Funding rounds
Investors
Funding detail is available on the Subscription and Enterprise plan.Contact sales →
Seaworks M&A and investment
M&A and investmentM&A
Investments
M&A and investment is available on the Subscription and Enterprise plan.Contact sales →
Frequently asked questions about Seaworks
What does Seaworks do?
Seaworks is a marine services company based in New Zealand that provides vessel charter, ROV (Remotely Operated Vehicle) operations, submarine cable installation, and other marine services to enterprise and government clients.
Is Seaworks a public or private company?
Seaworks is a private company. It is classified as unknown and is currently operating.
When was Seaworks founded?
Seaworks was founded in 1981. It employs 11 to 50 people.
Where is Seaworks based?
Seaworks is headquartered in Wellington, New Zealand, in the Oceania region.
How does Seaworks make money?
Four revenue lines are on record. Vessel Charter and Supply is the primary driver. The others are ROV Supply and Operations, marine Services and Project Work and vessel and Equipment Sourcing.
Who are Seaworks's main competitors?
Boskalis is listed as a peer. Broad incumbents are Subsea 7 and DOF Subsea. Direct peers are Neptune Marine Services, Calibre Group, Bhagwan Marine, Western Work Boats and Discovery Marine Limited (DML).
Does Seaworks have an API?
No public API is recorded for Seaworks.
What industry is Seaworks in?
Seaworks's product category is Marine Services. Its primary akta.pro industry code is TLAHAJAI, Marine Service Provider Coordination (Diving, Inspection, Class/Survey Support), with a secondary code of TLAHAMAL, Underwater Hull Services (Diving, In-Water Cleaning, Propeller Polishing, Inspection). Its NAICS code is 4883 and its SIC code is 7350.