What Seatools does

Seatools is a Netherlands-based (Numansdorp) subsea technology company founded in 1999 that designs and manufactures custom subsea equipment, systems, and components for the offshore industry. Its product offering spans two main categories: Subsea Solutions (custom ROVs, mass flow and precision flow excavation spreads, trenchers, fall pipe systems, heave compensation, subsea cable and pipeline installation tools, monitoring and control systems, subsea cleaning and cutting equipment, subsea pressure compensation and storage, and offshore installation tooling) and Subsea Components (subsea pressure, proximity, inclinometer, rotation, and wire length measurement sensors plus subsea compensators). Differentiated product lines include the HighWire taut wire position reference system, HeaveMate active heave compensation, DipMate and CraneMate dredging monitoring systems, the Carrera E precision flow excavation spread, and the Rockpiper and Flintstone fall pipe ROVs. The technology is grounded in proprietary subsea sensor and measurement IP combined with in-house multidisciplinary engineering (mechanical, hydraulic, electrical, software, control) backed by MIL/SIL/HIL simulation infrastructure, enabling first-time-right bespoke delivery for harsh offshore environments.

Name

Seatools

Legal name

Seatools

Website

https://seatools.com

Company type

Private

Founded year

1999

Operating status

Operating

Headcount range

51–100 employees

Short description

Seatools is a Netherlands-based subsea technology firm that designs and manufactures custom ROVs, trenchers, excavation systems, heave compensation, and subsea sensors for major offshore contractors in oil & gas, offshore wind, and marine construction.

Ownership category

akta.pro rank

Product category

Subsea Technology Equipment

NAICS

Support Activities for Water Transportation (4883), Marine Cargo Handling (48832), Overhead Traveling Crane, Hoist, and Monorail System Manufacturing (333923)

SIC

Oil & Gas Field Machinery & Equipment (3533), Misc Industrial & Commercial Machinery & Equipment (3590)

akta.pro primary industry

Subsea Services & Equipment (Subsea Trees, Umbilicals, Installation, IMR) (EUALABAI)

akta.pro secondary industries

Underwater Inspection, Maintenance & Repair (UWILD, Diving/ROV, In-water Cleaning) (IMAJAFAJ), Cargo Handling & Lifting Equipment (Cranes, Derricks, Hoists) (IMAJAIAB), Piping, Valves & Pumps (Deck/Service Systems Components) (IMAJAIAI)

Keywords

• Subsea technology solutions
• Remotely operated vehicles
• Subsea cable trenching
• Mass flow excavation
• Offshore installation equipment

Headquarters

HQ city

Numansdorp

HQ country

Netherlands

HQ region

Europe

Offices1 record

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

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

Revenue model

1. Custom Subsea Equipment Design and Manufacturing: Design and delivery of bespoke subsea technology solutions including ROVs, monitoring systems, trenchers, and excavation equipment. Project-based revenue with custom engineering scope.
2. Engineering and Simulation Services: Feasibility studies, FMEA, concept studies, and advanced simulations for offshore installation operations. Includes operational planning and validation services.
3. After-sales Services and Upgrades: Maintenance, repair, and upgrading activities on Seatools-manufactured equipment. Retrofit and upgrade projects for existing subsea equipment.

Go-to-market motion1 record

Distribution channels1 record

Marketing channels4 records

Core offering

Seatools designs and manufactures custom-made subsea technology solutions, components, and systems for offshore oil & gas, offshore wind, and marine construction applications. The portfolio spans remotely operated vehicles (ROVs), mass flow excavators, subsea trenchers, dredging monitoring systems, heave compensation systems, taut wire positioning systems, subsea sensors, and specialized installation equipment. Engineering services include feasibility studies, advanced simulations (MIL/SIL/HIL testing), FMEA, and concept studies, complemented by after-sales maintenance, retrofit, and upgrade services for deployed equipment.

Product overview

Seatools is a subsea technology company providing custom-made subsea solutions, components, and systems for the offshore industry. The product portfolio consists of two main categories: Subsea Solutions (including ROVs, excavation systems, trenching, cable installation, rock installation, heave compensation, monitoring and control systems) and Subsea Components (sensors including pressure, proximity, inclinometer, rotation, and wire length measurement sensors, plus compensators). Key named products include DipMate® dredging monitoring systems, Carrera E precision flow excavator, HighWire® taut wire positioning system, HeaveMate® active heave compensation, Rockpiper and Flintstone fall pipe ROVs, ROHP II inspection ROV, and various specialized subsea equipment for installation, cleaning, cutting, and storage applications. The company operates on a project-based custom engineering model delivering bespoke solutions for specific customer challenges, with products ranging from small sensor components to complete integrated ROV systems.

Differentiator

Problem solved

Functional benefit

Brands

• HighWire: Taut wire position reference system for accurate positional data during offshore and subsea operations
• DipMate
• HeaveMate
• Carrera E
• Carrera 4
• Flintstone
• Rockpiper
• Jetting Bull
• Arthropod 600
• Bravenes

Products and services

• DipMate Pro Backhoe Dredging Monitoring System Ultra-reliable backhoe dredging monitoring and control system for accurate visualization, registration, and control of backhoe dredging operations. Features a collision protection module for safe dredging near pipelines.
• DipMate Essential Backhoe Dredging Monitoring System Cost-competitive 3D backhoe dredger monitoring and registration system that can be retrofitted on virtually any backhoe or dipper dredger.
• Carrera E Precision Flow Excavation Spread 630+ kW all-electric deep-water excavator with 3D motion control and advanced ROV DP technology for subsea excavation with unprecedented accuracy, production, and workability.
• Carrera 4 Mass Flow Excavator Multi-purpose mass flow excavator with dual mode capability for trenching and excavation operations across a wide range of soils, featuring plug-and-play design.
• HighWire Taut Wire Position Reference System Survey grade taut wire system providing accurate and real-time positional data of submerged objects during offshore operations such as pile driving and subsea installation, with 1 centimeter measurement accuracy.
• HeaveMate Active Heave Compensation System Easy-to-integrate AHC control system for new and existing offshore and subsea equipment such as winches, cranes, and LARS systems, with auto-tuning and simulation-based optimization.
• OAS Heave Compensated Gangway Control System Control system for heave-compensated gangways enabling safe personnel transfer from vessel to platform at wave heights up to 2.5 meters.
• Flintstone Fall Pipe ROV Multi-functional fall pipe ROV with highly reliable ROV architecture, capable of performing multiple seabed preparation tasks including rock installation and mass flow excavation.
• Rockpiper Fall Pipe ROV Fall pipe ROV with integrated survey ROV technology capable of automatic docking/undocking for direct post-process surveys during rock installation, eliminating the need for separate survey operations.
• ROHP II Multi-Purpose Inspection ROV Multi-purpose inspection ROV designed for inspection, sampling, survey, and light intervention tasks in waters with strong currents and poor visibility.
• GES Deep Water Excavation Grab Grab Excavation System for deep-sea dredging with full 3D motion compensation achieving accuracy within 20 centimeters at 150m water depth.
• Jetting Bull Subsea Cable Trencher Towed subsea cable trencher for effective subsea cable burial up to 5 meters depth in sand and clay conditions.
• Arthropod 600 Subsea Pipeline Trencher Self-propelling mechanical subsea pipeline trencher suitable for both pre- and post-lay subsea trenching in water depths from 4 to 350 meters.
• ROCM Remotely Operated Cleaning Machine ROV-based cleaning machine for marine growth removal from power plant cooling water intakes, capable of cleaning 400-meter tunnels in 80 hours.
• Barracuda Subsea Diamond Wire Saw First dedicated all-electric subsea diamond wire saw designed as emergency response tool for water depths up to 3000 msw.
• Patania II Subsea Mining Vehicle World's first subsea mining vehicle to collect manganese nodules from the seabed at full ocean depth (4500 msw).
• Subsea Chemical Storage System (SCSS) System for safe and long-term subsea storage of production chemicals, facilitating significant reduction of oilfield development costs through reduced umbilical CAPEX.
• CraneMate Essential Grab Dredging Monitoring System 3D grab dredger monitoring and registration system for wire crane dredgers including clamshell and orange peel attachments.
• Seawater Intake Cleaning Solutions Proven robotic solutions for seawater intake cleaning with minimal plant disruption, maximum safety, and environmental sustainability for desalination, power plants, and seawater-dependent facilities.
• Subsea Pump Skid State-of-the-art subsea pump skid for efficient and precise suction anchor installations with reversible pumps and advanced controls.
• Iron Bull Pre-Cutting and Clearance Tool Patented seabed pre-cutting and clearance tool to mitigate risks from adverse soils and subsurface obstacles for predictable cable burial.
• Pre-Piling Template (PIF) Piling template instrumentation and control system for offshore piling operations during wind farm construction.
• Advanced Simulations and Control Engineering Services Simulation and control engineering services for mission-critical offshore and subsea equipment, including MIL, SIL, HIL testing, real-time mission simulators, feasibility studies, FMEA, and concept studies.

Quantifiable outcome

• 1 centimeter accuracy achieved in sewage outfall pipe installation at 4-knot currents
• +5 more outcomes

Named customers15 records

Segments1 record

Ideal customer profiles3 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature8 records

Partnerships

Three partnerships are on record, tiered core.

• Van OordcoreStrategic or Co-development Partner · 20 April 2015Custom ROV development partnership for rock installation vessel Bravenes. Seatools designed and delivered fall pipe ROV with focus on reliability and redundancy features for optimal availability. Partnership continued with multiple ROV contracts including recent 2025 dual fall pipe ROV contract and umbilical winch for trencher.
• Seaway Heavy LiftingcoreStrategic or Co-development PartnerLong-term partnership for design and delivery of piling template instrumentation and control systems. Seatools delivered complete mechanical, electric, hydraulic, and software design for Pile Installation Frame (PIF) used in Beatrice wind farm construction. Systems have enabled efficient and controlled piling operations for offshore wind foundations.
• Offshore SolutionscoreStrategic or Co-development PartnerDevelopment partnership for heave-compensated gangway technology. Seatools delivered complete control system including active heave compensator for the first operational heave-compensated gangway in the offshore industry. OAS system enabled safe personnel transfer to offshore structures up to 2.5m wave heights. Ten systems were sold based on this technology.

Scale indicators5 records

Recent moves6 records

Expansion highlights5 records

Direct peers

• SMD (Soil Machine Dynamics): SMD is a UK-based subsea equipment manufacturer specializing in ROVs, trenchers, and subsea robotics for offshore energy, cable installation, and mining — directly comparable to Seatools' ROV and trencher product lines.
• Royal IHC: Royal IHC is a Dutch offshore equipment manufacturer building dredging vessels, subsea equipment, and offshore tooling — overlapping with Seatools' dredge monitoring systems, subsea hydraulics, and trenching/excavation tools.
• Forum Energy Technologies: Forum Energy Technologies manufactures subsea robotics, ROVs, and tooling for offshore operators — directly comparable to Seatools' ROV and tooling product range across the same customer base.
• Saab Seaeye: Saab Seaeye is a leading manufacturer of electric underwater robotic systems and ROVs for offshore, military and hydrographic applications — closely comparable to Seatools' custom ROV and control engineering business.

Broad incumbents

• Oceaneering International: Oceaneering is a large US subsea robotics and intervention services provider with in-house ROV tooling and tooling manufacture — broader portfolio but competes with Seatools on custom subsea equipment for installation contractors.
• Subsea 7: Subsea 7 is a major SURF and subsea installation contractor (and disclosed Seatools customer) — a much larger entity that increasingly internalises subsea tooling, posing both a customer and competitive dynamic for Seatools.
• TechnipFMC: TechnipFMC is a global subsea equipment and services provider for offshore oil & gas — overlapping with Seatools on subsea tooling but at significantly larger scale and integrated with EPC contracts.
• Saipem: Saipem is a large offshore E&C contractor with internal subsea engineering capabilities and a disclosed Seatools customer — competes indirectly by bringing tooling design in-house for major projects.
• Helix Energy Solutions: Helix is a US-based subsea intervention and robotics services provider with proprietary ROV tooling — broader service-led model but overlapping with Seatools on subsea equipment used in installation and IMR campaigns.
• DeepOcean: DeepOcean is a subsea IMR and installation contractor (and disclosed Seatools customer) — competing in some tenders with integrated subsea services where Seatools is the equipment supplier, creating customer/competitor overlap.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks6 records

Key highlights7 records

Customer concentration

• LinkedInlinkedin.com/company/seatools

Revenue estimate

Valuation estimate

Number of profiles

Profiles3 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 Seatools