Products Pricing Free tools PSC Checklist Sign in Start free trial →
Maritime Safety Suite

Maritime compliance,
simplified.

For small operators, ports, and maritime professionals who need professional safety management without the enterprise complexity. Audit-ready from day one.

IMO MSC.255(84) aligned GISIS MSC-MEPC.3/Circ.4/Rev.1 ISM & ISPS compliant
IMO Casualty Investigation Code GISIS Reporting Schema ISM Code Compliance ISPS Code Security Port State Control Ready MARPOL Compliance UK Workboat Code SMS 2026 IMO MSC.428(98) Cyber IMO Casualty Investigation Code GISIS Reporting Schema ISM Code Compliance ISPS Code Security Port State Control Ready MARPOL Compliance UK Workboat Code SMS 2026 IMO MSC.428(98) Cyber
The challenge

When PSC boards,
what do you hand them?

Most small operators manage compliance with paper forms, Word documents, and spreadsheets. When an inspector boards — or an incident happens — they scramble.

📋
No structured records
Investigation reports written in Word from scratch. Drill records in a paper logbook. Certificates tracked on a spreadsheet nobody has updated. PSC sees this immediately.
⚖️
Growing regulatory burden
UK Workboat Code mandatory SMS by 2026. NTSB recommending SMS for all passenger vessels. PSC scrutiny of smaller ships increasing. Insurers requesting SMS evidence at renewal.
🔒
Enterprise tools don't fit
Proper maritime compliance software exists — but it is designed for large fleets with dedicated safety departments. Complex, expensive, and completely wrong for a small operator.
The platform

Right-sized software.
Nothing you don't need.

Modular compliance tools built for small maritime operators. Each module addresses a real regulatory requirement — guided workflows, professional outputs, audit-ready records.

Safety
Sentinel Investigate
Seven-step guided marine casualty investigation aligned with the IMO Casualty Investigation Code. SHEL analysis, five-whys, GISIS export, Word report generation.
  • GISIS MSC-MEPC.3/Circ.4/Rev.1 aligned
  • Word report with your company branding
  • Email report delivery
  • Append-only audit trail
  • Photo and document evidence capture
From $299/year standalone
Start free trial →
Safety
Sentinel SMS
Safety Management System for commercial vessels. Mini-ISM implementation covering safety policy, procedures, risk register, drill records, and internal audit — UK Workboat Code compliant by 2026.
  • UK Workboat Code SMS requirement
  • Safety manual generation
  • Non-conformity and corrective action
  • Internal audit toolkit
  • Emergency procedures library
Included in suite plans — Safety Pack
View plans →
Safety
Sentinel Drills
Emergency drill scheduling, recording, and reporting. Fire, abandon ship, man overboard, medical emergency — every drill logged, every attendance recorded, every deficiency noted.
  • SOLAS drill requirement compliant
  • Overdue drill alerts
  • PSC-ready drill log report
  • Deficiency and corrective action
  • Certificate of completion
Included in suite plans — Safety Pack
View plans →
Cyber Security
Sentinel Cyber
IMO MSC.428(98) requires cyber risk management in your SMS — already mandatory since 2021. Sentinel Cyber produces a Cyber Risk Management Plan aligned with MSC-FAL.1/Circ.3 and BIMCO guidelines.
  • IMO MSC.428(98) aligned
  • Critical system vulnerability assessment
  • Maritime-specific threat library
  • Response and recovery plan builder
  • PSC cyber verification checklist
Included in suite plans — Cyber Pack
View plans →
Security
Sentinel Secure
Ship Security Plan generation and management. Full ISPS compliance for applicable vessels and facilities. Scaled security planning for non-ISPS operators who need best-practice documentation.
  • ISPS Code compliant
  • Ship Security Plan generator
  • Declaration of Security management
  • Security drill records
  • Access logging
Included in suite plans — Security Pack
View plans →
FREE
Free tool
PSC Preparation
Is your vessel or facility ready for Port State Control? Work through our structured pre-inspection checklist covering documentation, equipment, crew, SMS, security, and cyber. Download your report.
  • No account required
  • Covers all major PSC inspection areas
  • Traffic-light readiness scoring
  • Downloadable preparation report
  • Guidance on common deficiencies
Completely free — no signup needed
Use the tool →
Pricing

Transparent pricing.
Three tracks.

All plans include Sentinel Investigate. Annual billing saves approximately two months versus monthly. All plans start with a 30-day free trial — no credit card required. Trial reports are watermarked.

For marine surveyors, consultants, freelance PFSOs and SSOs, and independent maritime investigators. No monthly option — always ready when you need it.

Trial: 3 complete investigations with watermarked reports. Watermark removed on subscription.

For ports, marinas, ferry terminals, and harbour authorities. Priced by staff users — no vessel count limit. A marina with 200 visiting yachts pays the same as one with 20.

Small
Up to 5 staff users
Small marina, boat club, ferry terminal
$89
/month
or $849/year — save ~$219
  • Sentinel Investigate
  • 1 facility profile
  • Up to 5 users
  • Audit trail and reports
  • Email support
Start free trial
Large
Unlimited users
Large marina complex, regional port
$349
/month
or $3,149/year — save ~$1,039
  • Everything in Medium
  • Unlimited users
  • Multi-level approval chain
  • Full analytics
  • Phone and email support
Start free trial
Enterprise
Multi-site port authority
Custom arrangements
Custom
tailored pricing
 
  • Everything in Large
  • Multiple facility profiles
  • Custom integrations
  • Dedicated support
  • SLA agreement
Contact us →

For vessel owners, cargo operators, ferry companies, and ship management companies. Priced by operated vessels — vessels you own or are directly responsible for.

Solo
1 vessel — up to 2 users
Single commercial vessel operator
$89
/month
or $849/year — save ~$219
  • Sentinel Investigate
  • 1 vessel profile
  • Up to 2 users
  • Audit trail and reports
  • Email support
Start free trial
Medium fleet
6–15 vessels — unlimited users
Regional ferry, ship management
$399
/month
or $3,649/year — save ~$1,139
  • Everything in Small fleet
  • Up to 15 vessel profiles
  • Unlimited users
  • Multi-level approval chain
  • Phone and email support
Start free trial
Large fleet
16+ vessels
Custom arrangements
Custom
tailored pricing
 
  • Everything in Medium fleet
  • 16-30+ vessel profiles
  • Unlimited users
  • Enterprise support
  • Custom integrations
Contact us →

All prices in USD. Add domain packs below for additional compliance modules. Contact us for Enterprise or custom arrangements.

Domain packs

Add only what you need.

Every plan includes Sentinel Investigate. Add domain packs to cover your specific regulatory obligations. Choose one, several, or take Full Compliance for everything at a 20% saving.

Safety Pack
Sentinel SMS + Sentinel Drills + Sentinel Certificates
+$39/month
ISM Code / SOLAS / UK Workboat Code
🔒
Security Pack
Sentinel Secure + Sentinel Declarations + Access logging
+$39/month
ISPS Code
👤
Crew Pack
Sentinel Crew + Sentinel Hours (work and rest records)
+$39/month
STCW / ILO MLC
🌊
Environment Pack
Sentinel MARPOL + Garbage management + Environmental surveys
+$39/month
MARPOL Annexes I–VI
💻
Cyber
Sentinel Cyber — IMO MSC.428(98) Cyber Risk Management Plan
+$29/month
IMO MSC.428(98) / MSC-FAL.1/Circ.3
Full Compliance
All five packs — Safety, Security, Crew, Environment, and Cyber
+$119/month
Save approximately 20% vs individual packs
Regulatory alignment

Built around what
regulators require.

IMO MSC.255(84)
Casualty Investigation Code
The seven-step Sentinel Investigate workflow reflects the IMO Casualty Investigation Code methodology — from sequence of events through SHEL analysis to safety recommendations.
MSC-MEPC.3/Circ.4/Rev.1
GISIS Reporting Schema
All investigation data is structured against the GISIS five-appendix schema. GISIS export produces structured JSON ready for IMO GISIS MCI module entry by the flag state.
ISM Code / SOLAS IX
Safety Management System
Sentinel SMS implements a mini-ISM aligned with the ISM Code and the UK Workboat Code SMS requirement mandatory from 2026.
IMO MSC.428(98)
Maritime Cyber Risk
MSC.428(98) requires cyber risk management in SMS documentation since January 2021. PSC is now actively verifying this. Sentinel Cyber produces a compliant plan aligned with MSC-FAL.1/Circ.3.
ISPS Code
Ship and Port Security
Sentinel Secure addresses ISPS requirements for applicable vessels and facilities, and provides scaled security planning for non-ISPS operators following best practice guidance.
UK Workboat Code 2026
Small Vessel SMS Requirement
All UK coded vessels must have a documented SMS by 2026. Sentinel SMS delivers a compliant Safety Management System without the complexity or cost of full ISM certification.
Free tools

Three free tools.
No account required.

Purpose-built checklists for the most common compliance challenges. Use them before a port call, before an audit, or to identify gaps in your current compliance programme.

🔍
Free — no signup
PSC Preparation Checklist
Structured pre-inspection checklist covering documentation, equipment, crew competency, SMS, security, and cyber. Traffic-light readiness scoring. Download your report before any port call.
Use the tool →
💻
Coming soon
Cyber Security Checklist
IMO MSC.428(98) cyber readiness assessment. Identify your critical systems, check your vulnerability posture, and verify your response procedures are in place. Download your cyber readiness report.
Notify me →
🛡️
Coming soon
ISPS Audit Preparation
Pre-audit readiness checklist for ISPS-applicable vessels and port facilities. Ship Security Plan review, security drill records, SSO certification, and Declaration of Security procedures.
Notify me →
📡
Connectivity and offline use
SentinelMSS is designed for reliable operation across a range of connectivity environments. On stable connections the full workflow operates seamlessly. On intermittent connections, your work is automatically preserved locally so nothing is lost during brief dropouts. For operations requiring full offline capability — extended voyages, remote port facilities, or areas without reliable connectivity — contact us to discuss our offline-first deployment roadmap.

Ready to be audit-ready?

Start your free trial today. No credit card. No commitment. Set up in an afternoon.