24Sea
24Sea is a Belgian spin-off from VUB/OWI-lab that builds structural health monitoring systems and reporting services exclusively for offshore wind foundations, serving European developers and operators including ENGIE, RWE, Parkwind and DEME across 150+ instrumented structures.
- Company typePrivate
- Founded2016
- HeadquartersBrussel, Belgium
- Headcount1–10
- GTM typeB2B
- OfferingServices
What 24Sea does
24Sea (legally 24Sea BVBA) is a Belgian private limited company founded in 2016 by Gert De Sitter and Christof Devriendt as a spin-off from Vrije Universiteit Brussel (VUB) and the Offshore Wind Infrastructure lab (OWI-lab). The company develops structural health monitoring (SHM) systems dedicated exclusively to offshore wind foundations, combining structural dynamics, signal processing, system identification, and data analysis techniques. Its portfolio comprises three product tiers — Basic SHM (vibration, scour, rotor imbalance, settlement, fatigue loading), Extended SHM (bending moments, grout, bolt, corrosion, cathodic protection, environmental monitoring), and Fleetwide SHM (low-cost RNA-mounted accelerometer for farm-wide frequency tracking and fatigue progression) — paired with three service lines: Supply & Maintenance of monitoring systems, Structural Health Reporting, and Expert Advanced Data Analysis.
24Sea monetizes through enterprise managed-services and professional-services contracts, delivered via direct field sales and expert consultation to offshore wind developers and operators. The stated customer set is heavily concentrated in European offshore wind and energy majors (Parkwind, ENGIE, DEME, RWE, C-Power, Jan De Nul, OTARY, Eneco, Van Oord, OceanWinds, Norther, Smulders, Ecowende, Sif Group), with 150+ instrumented structures and 6.5GW+ of monitored capacity in the portfolio. Operating geographies are limited to Belgium, the Netherlands, Germany, and the United Kingdom. The company is actively engaged in four EU R&D consortia (WILLOW, SMARTLIFE, SUPERSIZED 4.0, BOPTIC) targeting AI-driven fleet life assessment, digital twins, IoT/SCADA-integrated fleet monitoring, and optical sensing for BoP cost reduction, and has recently formalized an in-house AI function with a Lead Development & AI hire. No funding rounds, revenue figures, or patents are publicly disclosed.
24Sea firmographics
Firmographics- Name
- 24Sea
- Legal name
- 24Sea BVBA
- Website
- https://24sea.eu
- Company type
- Private
- Founded year
- 2016
- Operating status
- Operating
- Headcount range
- 1–10 employees
- Short description
- 24Sea is a Belgian spin-off from VUB/OWI-lab that builds structural health monitoring systems and reporting services exclusively for offshore wind foundations, serving European developers and operators including ENGIE, RWE, Parkwind and DEME across 150+ instrumented structures.
- Ownership category
- akta.pro rank
24Sea industry classification
Industry- Product category
- Offshore Wind Structural Health Monitoring
- NAICS
- Search, Detection, Navigation, Guidance, Aeronautical, and Nautical System and Instrument Manufacturing (334511)
- SIC
- Industrial Instruments For Measurement, Display, And Control (3823)
- akta.pro primary industry
- Structural Health Monitoring (SHM) for Civil/Steel Structures (EUAEAKAE)
- akta.pro secondary industries
- Offshore Wind Substructures & Marine Engineering (Monopiles, Jackets, Floating) (EUAMACAE), Marine & Offshore Energy O&M (Offshore Wind, Platforms, Subsea Assets) (EUAEAGAO)
Keywords
Where 24Sea is headquartered
LocationHeadquarters
- HQ city
- Brussel
- HQ country
- Belgium
- HQ region
- Europe
Offices2 records
Markets served
24Sea business model
Business model- GTM type
- B2B
- Offering type
- Services
- Cost components
- Personnel, Technology or R&D, Operations, Supply Chain, Infrastructure, Marketing or Sales
Revenue model
- SHM Monitoring Systems: Supply and maintenance of dedicated structural health monitoring systems for offshore wind structures, including hardware installation and ongoing monitoring services.
- Structural Health Reporting Services: Comprehensive structural health reporting using advanced signal processing and data-processing techniques to report on the integrity and safety of offshore wind foundations.
- Expert Data Analysis Services: Advanced data analysis services providing expert advice on structural health and lifetime extension for offshore wind foundations.
Go-to-market motion1 record
Distribution channels1 record
Marketing channels3 records
24Sea product offering
Product offeringCore offering
24Sea develops, supplies, and maintains structural health monitoring (SHM) systems for offshore wind foundations, offering three product tiers (Basic, Extended, and Fleetwide SHM systems) that use accelerometer and sensor instrumentation to monitor vibration, scour, rotor imbalance, fatigue progression, bending moments, grout integrity, bolt condition, corrosion, and cathodic protection. The company complements these systems with supply & maintenance, structural health reporting, and expert advanced data analysis services to support lifetime extension and proactive O&M for offshore wind assets.
Product overview
24Sea offers a unified SHM platform centered on three monitoring systems: the Basic SHM System for vibration, scour, and fatigue monitoring; the Extended SHM System with advanced sensors for bending moments, grout, bolt, corrosion, and environmental monitoring; and the Fleetwide SHM System using low-cost accelerometers for fleet-wide frequency tracking and fatigue progression. These core products are complemented by three service offerings: Supply & Maintenance Monitoring Systems, Structural Health Reporting Services, and Expert Advanced Data Analysis Services. Together, they provide complete data-driven actionable insights and decision support for effective wind farm asset management, empowering developers and operators toward LCOE reductions and proactive O&M approaches.
Differentiator
Problem solved
Functional benefit
Products and services
- Basic SHM System Structural health monitoring system for offshore wind foundations that monitors excessive vibration levels, scour development, rotor imbalances, long-term settlement, and evaluates extreme and fatigue loading against the original design. Targeted at offshore wind developers and operators.
- Extended SHM System Extended structural health monitoring system that measures bending moments along the monopile structure, grout, bolt, corrosion and cathodic protection, and environmental monitoring for offshore structures. Targeted at offshore wind developers and operators requiring deeper structural insight.
- Fleetwide SHM System Fleet-wide structural health monitoring system based on a low-cost accelerometer installed in the RNA of all wind turbines, enabling farm-wide frequency tracking, rotor imbalance monitoring, and fleet-wide fatigue progression monitoring. Targeted at offshore wind operators with large turbine fleets.
- Supply & Maintenance Monitoring Systems Service for developing and maintaining dedicated structural health monitoring systems for offshore structures, tailored to client-specific needs to ensure continuous safety and reliability of offshore wind foundations. Targeted at offshore wind developers and operators.
- Structural Health Reporting Services Comprehensive structural health reporting service using advanced signal processing and data-processing techniques to report on the integrity and safety of offshore wind foundations. Targeted at offshore wind developers and operators needing ongoing integrity assessments.
- Expert Advanced Data Analysis Services Expert advanced data analysis service providing advice and guidance on structural health and lifetime extension for offshore wind foundations, working closely with clients to deliver the best possible outcomes. Targeted at offshore wind developers and operators seeking expert structural and lifetime-extension consulting.
Quantifiable outcome
- 6.5GW+ of offshore wind capacity in portfolio
- +2 more outcomes
Companies that use 24Sea
Customer profileNamed customers14 records
Segments2 records
Ideal customer profiles1 record
24Sea technology and API
TechnologyTechnology focussed Yes
API detail
- Has API
- No
- API docs
- API detail
Core technology
AI maturity
App detail
AI capability3 records
Feature3 records
24Sea partnerships and signals
Strategic signalPartnerships
Six partnerships are on record, tiered core and minor.
- Vrije Universiteit Brussel (VUB)core24SEA was launched as a spin-off company of VUB. The university partnership provides research foundation and academic expertise in structural dynamics and monitoring.
- Offshore Wind Infrastructure lab (OWI-lab)core24SEA was launched as a spin-off of OWI-lab. The lab provides research infrastructure and expertise for offshore wind monitoring technology development.
- WILLOW Project ConsortiumminorWILLOW project provides data-driven smart curtailment solutions using AI methods for fleet life assessment. 24SEA contributes SHM system development.
- SMARTLIFE Project ConsortiumminorSMARTLIFE project develops physics-based and data-based digital twins for offshore wind farm optimization. 24SEA participates in structural health monitoring development.
- SUPERSIZED 4.0 Project ConsortiumminorSUPERSIZED 4.0 develops innovative monitoring methods using fleet data from Fast SCADA, CM, SHM data and IoT-based sensors. 24SEA contributes to fleet monitoring innovation.
- BOPTIC Project ConsortiumminorBOPTIC project focuses on Balance of Plant O&M costs using optical sensing technologies and data mining for cables and foundations. 24SEA contributes to structural health monitoring aspects.
Scale indicators5 records
Recent moves7 records
Expansion highlights4 records
24Sea competitors and assessment
Company assessmentBroad incumbents
- HBK (Hottinger Brüel & Kjær): Global leader in vibration, acoustic and structural test & measurement instrumentation. Their sensing hardware and monitoring platforms overlap with 24Sea's accelerometer-based SHM systems, although HBK serves a much broader industrial customer base.
- Bureau Veritas: Global TIC (testing, inspection, certification) company with offshore wind asset integrity, monitoring and lifetime assessment services. Competes indirectly with 24Sea's integrity monitoring and lifetime extension offering via TIC-led inspection programs.
- Romax Technology (Hexagon): Provider of drivetrain and rotating-equipment simulation, monitoring and condition-based maintenance for wind turbines. Adjacent to 24Sea in applying physics + data analytics to wind asset integrity, though Romax historically focuses on drivetrains rather than foundations.
- DNV: Major assurance, certification and asset integrity advisory firm with a strong offshore wind practice including structural monitoring, lifetime assessment and digital twin services. Overlaps with 24Sea's data-driven lifetime extension and asset integrity value proposition, but as part of a much wider service portfolio.
Regional players
- Moventas: Wind gear manufacturing and service provider with condition monitoring and predictive maintenance offerings for wind drivetrains. Adjacent to 24Sea in applying continuous monitoring to extend wind asset life, though primarily geared toward mechanical drivetrain components.
Direct peers
- ONYX Insight: Specialist condition-monitoring and predictive analytics provider for wind turbine drivetrains and components, with a similar SHM-flavored, data-driven service model aimed at reducing O&M cost and extending asset life — directly comparable to 24Sea's SHM + analytics approach on the rotating-equipment side.
- KISTERS: Provides environmental, energy and asset-monitoring software including wind power monitoring and SHM solutions. Comparable to 24Sea in serving renewable operators with continuous monitoring, data management and analytics infrastructure.
Emerging players
- Akselos: Physics-based digital twin platform for critical infrastructure including offshore wind foundations and oil & gas assets. Directly comparable to 24Sea's structural integrity and lifetime assessment use cases, but using simulation rather than instrumented SHM as the primary input.
- WindESCo: Wind farm performance optimization software using turbine and SCADA data analytics. Comparable to 24Sea's fleet-wide analytics and LCOE-reduction focus, but with a different sensor stack (data-driven, not structural instrumentation) and a more software-led GTM.
- Sercel (CGG): Supplies seismic and structural monitoring instrumentation used in offshore environments including wind foundations. Overlaps with 24Sea in deploying high-precision sensing systems for offshore structures, though Sercel's primary market is oil & gas geophysics.
Market position
Strengths5 records
Weaknesses5 records
Competitive moat4 records
Key risks6 records
Key highlights6 records
Customer concentration
24Sea social profiles
Digital presence24Sea financial estimates
Financial estimateRevenue estimate
Valuation estimate
24Sea leadership team
Management profileNumber of profiles
Profiles14 records
24Sea funding detail
Funding detailFunding overview
Funding rounds
Investors
Funding detail is available on the Subscription and Enterprise plan.Contact sales →
24Sea 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 24Sea
What does 24Sea do?
24Sea develops, supplies, and maintains structural health monitoring (SHM) systems for offshore wind foundations, offering three product tiers (Basic, Extended, and Fleetwide SHM systems) that use accelerometer and sensor instrumentation to monitor vibration, scour, rotor imbalance, fatigue progression, bending moments, grout integrity, bolt condition, corrosion, and cathodic protection. The company complements these systems with supply & maintenance, structural health reporting, and expert advanced data analysis services to support lifetime extension and proactive O&M for offshore wind assets.
Is 24Sea a public or private company?
24Sea is a private company. It is classified as founder individual operated bootstrapped and is currently operating.
When was 24Sea founded?
24Sea was founded in 2016. It employs 1 to 10 people.
Where is 24Sea based?
24Sea is headquartered in Brussel, Belgium, in the Europe region.
How does 24Sea make money?
Three revenue lines are on record. SHM Monitoring Systems are the primary driver. The others are structural Health Reporting Services and expert Data Analysis Services.
Who are 24Sea's main competitors?
Broad incumbents on record are HBK (Hottinger Brüel & Kjær), Bureau Veritas, Romax Technology (Hexagon) and DNV. Moventas is listed as a regional player. Direct peers are ONYX Insight and KISTERS. Emerging players are Akselos, WindESCo and Sercel (CGG).
Does 24Sea have an API?
No public API is recorded for 24Sea.
What industry is 24Sea in?
24Sea's product category is Offshore Wind Structural Health Monitoring. Its primary akta.pro industry code is EUAEAKAE, Structural Health Monitoring (SHM) for Civil/Steel Structures, with a secondary code of EUAMACAE, Offshore Wind Substructures & Marine Engineering (Monopiles, Jackets, Floating). Its NAICS code is 334511 and its SIC code is 3823.