We4Sea
We4Sea is a Rotterdam-based cloud platform using proprietary Digital Twin technology to deliver real-time, weather-normalized ship performance monitoring, emission reporting, and pre-charter assessments for charterers, ship owners, and maritime stakeholders without onboard hardware.
- Company typePrivate
- Founded2016
- HeadquartersRotterdam, Netherlands
- Headcount1–10
- GTM typeB2B
- OfferingSoftware
What We4Sea does
We4Sea B.V. is a Rotterdam-based software company founded in 2016 that operates a cloud-based Ship Performance Monitoring Platform built around proprietary Digital Twin technology. The platform applies algorithm-based digital vessel models incorporating over 80 vessel characteristics to multi-source AIS and weather data, delivering up to 480 updates per day with greater than 95% global position coverage. Its product suite includes real-time performance monitoring, weather-normalized performance loss assessments, browser-based noon-reporting, emission reporting (EU-MRV, UK-MRV, IMO-DCS, CII), a Speed Adviser module, and a Single Source of Truth (SSOT) platform that enables charterer-owner data sharing. A Pre-Charter Assessment service, launched in 2024, allows charterers to evaluate vessels using actual operational data before fixture, with disclosed cases showing $150,000 in fuel savings over six months (EML) and a 5.4% fuel efficiency gain (Jumbo).
We4Sea monetizes primarily through quarterly subscription contracts on hosted services, with minimum vessel count and minimum subscription fees set per contract, and supplements this with consultancy, training, and bespoke client development billed per engagement. The go-to-market is enterprise field sales targeting charterers, ship owners, and other maritime stakeholders (governments, law firms, financial institutions), with 1-on-1 consultations, pilot programs, and a distribution partnership with Inmarsat's Fleet Data ecosystem. Named enterprise customers include EML (Euro Marine Logistics), Jumbo, Samskip, P&O Ferries, and Roll Group; case studies report 3-5% efficiency improvements and $169,000-$286,000 in annual net savings per vessel. Revenue figures are not publicly disclosed; disclosed capital is limited to a 2017 Mainport Innovation Fund investment of approximately $427,125, EU Horizon 2020 grant funding, and prior accelerator support from YES!Delft, with a self-reported 100% year-over-year revenue growth rate.
In 2025 the company transitioned from founder-led operations, appointing Jelmer de Weerd as CEO and Ernst van der Putten as CFO while co-founders Michiel Katgert and Dan Veen continued as shareholders. Headcount remains in the 1-10 band with collective team experience of 80+ years across five-plus nationalities, and the company is headquartered at Stationsplein 45 in Rotterdam Central within the Kleinhandel co-working concept.
We4Sea firmographics
Firmographics- Name
- We4Sea
- Legal name
- We4Sea B.V.
- Website
- https://we4sea.com
- Company type
- Private
- Founded year
- 2016
- Operating status
- Operating
- Headcount range
- 1–10 employees
- Short description
- We4Sea is a Rotterdam-based cloud platform using proprietary Digital Twin technology to deliver real-time, weather-normalized ship performance monitoring, emission reporting, and pre-charter assessments for charterers, ship owners, and maritime stakeholders without onboard hardware.
- Ownership category
- akta.pro rank
We4Sea industry classification
Industry- Product category
- Maritime Performance Monitoring Software
- NAICS
- Support Activities for Water Transportation (4883), Other Support Activities for Water Transportation (48839)
- SIC
- Industrial Instruments For Measurement, Display, And Control (3823)
- akta.pro primary industry
- Marine Sensors, Instrumentation & IoT (Condition Monitoring) (IMAJAJAI)
- akta.pro secondary industries
- Naval C4ISR, Communications & Electronic Warfare (IMABAKAE), Shore Power & Electrification Systems (Cold Ironing, Charging Interfaces) (IMAJAJAM)
Keywords
Where We4Sea is headquartered
LocationHeadquarters
- HQ city
- Rotterdam
- HQ country
- Netherlands
- HQ region
- Europe
Offices1 record
Markets served
We4Sea business model
Business model- GTM type
- B2B
- Offering type
- Software
Revenue model
- Hosted Services (Performance Monitoring Dashboard): Software-as-a-service subscription providing access to We4Sea performance monitoring dashboard. Billed quarterly in advance. Minimum vessel and subscription fees apply. Includes maintenance, updates and upgrades during the contract term.
- Consultancy Services: Advisory services for performance analysis and assessment. Billed per time spent or as agreed in quotation.
- Training Services: Services aimed to train and educate users in the use of We4Sea Services
- Client Specific Development Services: Any client specific software developments agreed upon under contract, charged separately from base subscription
Pricing tiers
| Model | Billing | Price |
|---|---|---|
| Subscription | Quarterly | Subscription-based hosted services with minimum vessel requirements |
Go-to-market motion1 record
Distribution channels4 records
Marketing channels7 records
We4Sea product offering
Product offeringCore offering
We4Sea provides a cloud-based ship performance monitoring platform powered by Digital Twin technology. The solution ingests multi-source data (AIS, noon reports, weather, bunker data) to model vessel behavior, identify underperformance, optimize trim/speed/route, and quantify fuel savings and CO2 emissions for charterers, ship owners and managers.
Product overview
We4Sea offers a unified cloud-based Ship Performance Monitoring Platform built around its proprietary Digital Twin technology. The platform comprises the core monitoring dashboard and multiple specialized modules including Performance Loss Assessments (Charter Party Compliance), Noon-Reporting tools, Emission Reporting (EU-MRV/IMO-DCS/CII), Pre-Charter Assessment, Speed Adviser, and CII Monitoring. The company also provides a Single Source of Truth (SSOT) platform for real-time charterer-owner data sharing. All solutions operate without requiring onboard hardware sensors, using satellite AIS data and weather feeds processed through the Digital Twin engine to deliver real-time performance insights.
Differentiator
Problem solved
Functional benefit
Products and services
- Ship Performance Monitoring Platform Cloud-based SaaS platform that aggregates AIS, noon reports, weather and bunker data into per-vessel KPIs, fleet dashboards and CO2/emissions reporting for ship owners, managers and charterers.
- Digital Twin Engine Physics-based Digital Twin that models each vessel's expected performance and benchmarks it against actual operating data to detect underperformance and quantify savings opportunities.
- Noon-Reporting Tool Digital noon-report module that lets crew submit daily vessel data into the platform, feeding the Digital Twin and KPI dashboards.
- Pre-Charter Assessment Independent technical assessment of a vessel's performance, condition and emissions profile prior to a charter party or sale, supporting commercial negotiations.
- Speed Adviser Decision-support module advising operators on optimal trim, speed and route settings to minimize fuel consumption while respecting schedule constraints.
- CII Monitoring & Reporting Module that calculates, tracks and reports vessel Carbon Intensity Indicator (CII) ratings to support IMO compliance and decarbonization planning.
- Performance Loss Assessment Analytical service that isolates and quantifies vessel underperformance against the Digital Twin baseline, supporting Speed & Consumption Claim workflows.
- Emissions Reporting Service CO2 and emissions reporting aligned with EU frameworks such as the EU ETS and FuelEU Maritime, providing auditable data for shipping companies and charterers.
Quantifiable outcome
- 3-5% efficiency improvement after implementation
- +5 more outcomes
Companies that use We4Sea
Customer profileNamed customers5 records
Segments3 records
Ideal customer profiles3 records
We4Sea technology and API
TechnologyTechnology focussed Yes
API detail
- Has API
- No
- API docs
- API detail
Core technology
AI maturity
App detail
AI capability4 records
Feature7 records
We4Sea partnerships and signals
Strategic signalPartnerships
Two partnerships are on record, tiered core and flagship.
- InmarsatcoreWe4Sea signed agreement to join Inmarsat's certified application provider program offering applications via Fleet Data and Fleet Connect. Enables cloud analytics using dedicated Fleet Data bandwidth for always-on ship-shore communication via API. Partnership enables We4Sea to offer its Digital Twin-based performance monitoring to Inmarsat's maritime customer base.
- Roll GroupflagshipRoll Group contracted We4Sea for fleet-wide vessel performance monitoring using Inmarsat Fleet Data. Successfully trialed on RollDock Star and RollDock Storm vessels, optimizing speed and generator efficiency leading to significant fuel consumption cut. First customer to move from trial to fleet-wide commitment under the Inmarsat partnership.
Scale indicators14 records
Recent moves7 records
Expansion highlights6 records
We4Sea competitors and assessment
Company assessmentDirect peers
- Veson Nautical: Maritime software provider serving charterers and ship owners with voyage, emissions, and freight management solutions. Comparable to We4Sea on the charterer-side workflow and CII/emissions reporting functionality.
- Marorka: Icelandic provider of ship performance monitoring and energy efficiency solutions for the maritime industry. Direct competitor to We4Sea with overlapping Digital Twin–style vessel analytics and fuel efficiency optimization for commercial cargo ships.
- StormGeo: Global provider of weather routing, vessel performance, and emissions optimization for shipping. Directly comparable to We4Sea in the maritime performance monitoring category, with broader weather analytics capabilities.
- Nautilus Labs: Maritime performance optimization SaaS platform serving commercial shipping operators, focused on voyage and fuel efficiency analytics. Closely comparable to We4Sea in target customers, subscription model, and charterer-focused workflow.
- BMT Group: Maritime engineering and technology consultancy offering vessel performance monitoring and fleet management tools. Comparable to We4Sea for ship owners and operators seeking performance analytics and emission reporting.
- OceanOps (ZeroNorth): Maritime optimization platform combining vessel performance monitoring, voyage optimization, and emissions management for shipping. Directly comparable to We4Sea on its integrated performance + emissions + CII offering for commercial shipping.
Broad incumbents
- ABB Marine & Ports: Large marine technology incumbent offering the ABB Ability™ OCTOPUS vessel performance and fleet management suite. Overlaps with We4Sea on performance monitoring, but as part of a much broader marine automation and propulsion portfolio.
- Wärtsilä SmartShip: Major marine technology group whose SmartShip/Future Flow offering provides ship performance optimization and emissions analytics. Competes with We4Sea in the same customer workflows but bundles monitoring into a much larger engine and services portfolio.
- Kongsberg Maritime: Norwegian marine technology incumbent offering vessel performance, digital twin, and emissions monitoring solutions. Broadly comparable in category, but operates at significantly larger scale across automation, propulsion, and digital services.
Emerging players
- RightShip: Maritime risk and sustainability data platform providing vessel emissions, CII, and performance intelligence. Comparable to We4Sea on emissions reporting and data-driven charterer decisions, though it focuses more on risk and benchmarking than operational optimization.
Market position
Strengths5 records
Weaknesses5 records
Competitive moat5 records
Key risks7 records
Key highlights7 records
Customer concentration
We4Sea social profiles
Digital presenceWe4Sea financial estimates
Financial estimateRevenue estimate
Valuation estimate
We4Sea leadership team
Management profileNumber of profiles
Profiles4 records
We4Sea funding detail
Funding detailFunding overview
Funding rounds3 records
Investors3 records
Funding detail is available on the Subscription and Enterprise plan.Contact sales →
We4Sea 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 We4Sea
What does We4Sea do?
We4Sea provides a cloud-based ship performance monitoring platform powered by Digital Twin technology. The solution ingests multi-source data (AIS, noon reports, weather, bunker data) to model vessel behavior, identify underperformance, optimize trim/speed/route, and quantify fuel savings and CO2 emissions for charterers, ship owners and managers.
Is We4Sea a public or private company?
We4Sea is a private company. It is classified as venture growth investor backed and is currently operating.
When was We4Sea founded?
We4Sea was founded in 2016. It employs 1 to 10 people.
Where is We4Sea based?
We4Sea is headquartered in Rotterdam, Netherlands, in the Europe region.
How does We4Sea make money?
Four revenue lines are on record. Hosted Services (Performance Monitoring Dashboard) is the primary driver. The others are consultancy Services, training Services and client Specific Development Services.
Who are We4Sea's main competitors?
Direct peers on record are Veson Nautical, Marorka, StormGeo, Nautilus Labs, BMT Group and OceanOps (ZeroNorth). Broad incumbents are ABB Marine & Ports, Wärtsilä SmartShip and Kongsberg Maritime. RightShip is listed as an emerging player.
Does We4Sea have an API?
No public API is recorded for We4Sea.
What industry is We4Sea in?
We4Sea's product category is Maritime Performance Monitoring Software. Its primary akta.pro industry code is IMAJAJAI, Marine Sensors, Instrumentation & IoT (Condition Monitoring), with a secondary code of IMABAKAE, Naval C4ISR, Communications & Electronic Warfare. Its NAICS code is 4883 and its SIC code is 3823.