Vessel management software for small fleets: a practical UK buyer's guide
What vessel management software should do for a small fleet: certificates, hours of rest, ISM safety and maintenance in one place, offline at sea.
If you run a handful of vessels, such as workboats, crew transfer vessels, pilot boats, aquaculture support craft or a small ferry fleet, you have probably been told that vessel management software is something only the big ship managers need. It isn’t. The rules on certificates, rest hours, safety and maintenance apply whether you run three hulls or three hundred. What differs is how much admin time you have to meet them.
This guide explains what vessel management software is, what it must do for a small or mid-sized fleet, and how to choose one without a long rollout.
For a fuller overview of the platform, see Vessel Management Software.
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What is vessel management software?
Vessel management software is a single system that holds the compliance and operational record for each vessel and its crew: certificates, hours of rest, safety management, maintenance and crew records. Shore staff and the people on board work from the same data.
For a small operator it replaces the familiar mix of spreadsheets, paper logbooks, shared drives and message groups. The test is simple. Can your DPA or fleet manager answer “Are we compliant today?” for every vessel without picking up the phone?
Why small fleets are moving off spreadsheets now
Three pressures are coming together in the UK.
1. Workboat Code Edition 3. The MCA and the Workboat Association have warned that the transitional arrangements for Workboat Code Edition 3 end on 13 December 2026 for the first cohort of vessels still certificated under earlier codes, and that end-of-year demand could leave survey slots short (GOV.UK: Check. Prepare. Book.). The MCA summarises the standards and guidelines referenced in the Code in MIN 698 Amendment 2. Operators need evidence of their safety management, certificates and maintenance ready for the surveyor.
2. Scrutiny of rest-hour records. According to Splash247’s coverage, the Sustainable Shipping Initiative’s October 2026 From Welfare to Risk report found fatigue to be the most extensively documented crew risk, and warned that understaffing and excessive workloads encourage the falsification of rest-hour records. A “perfect” paper rest sheet is a red flag, not a reassurance.
3. Regulators focused on practice, not just paper. At the October 2026 World Maritime Day Parallel Event in Busan, themed “From Policy to Practice”, the IMO Secretary-General listed the approval of the IMO Strategy on Maritime Digitalization among the year’s milestones, and delegates stressed that adopting regulations is only the first step (IMO press briefing, 28 October 2026).
The MCA has also consulted on a Domestic Safety Management Code for UK domestic passenger ships. We cover it in our news post on the MCA consultation.
The six things good vessel management software must do
1. Certificate tracking for crew and vessel
Expired certificates cause off-hire days, Port State Control findings and rushed, expensive training bookings. Your software should:
- hold crew certificates and vessel statutory and class certificates, in separate but connected registers
- show expiries across the whole fleet, with reminders well ahead of time
- let crew upload certificates from the crew app rather than emailing scans
WaterTightVM does all three. Crew add certificates in the crew app as a photo or PDF, choosing from a fixed list of certificate types that includes ratings certificates such as Able Seafarer and EDH. The certificate holder gets expiry reminders at about 90, 30 and 7 days, on the expiry day and once overdue, and the office sees what is expiring on the web dashboard. See certificate compliance and vessel certificates.
2. Hours of rest that get recorded on the day
In the UK, the Hours of Work Regulations 2018 set minimum rest of 10 hours in any 24-hour period and 77 hours in any 7-day period, with the 10 hours divided into no more than two periods, one of at least 6 hours. Good hours of rest software records hours on the day, works out the rolling 24-hour and 7-day totals automatically, and shows a non-conformity before an auditor finds it.
In WaterTightVM, hours are recorded in half-hour blocks in the crew app, including offline, or on the web. The engine checks the STCW A-VIII/1 limits and shows breaches in the app as violation badges and an issues list, with a non-compliance PDF export. Crew confirm their hours, officers confirm or edit them with a reason in the audit trail, and periods can be locked. The office sees a dashboard card of open violations across the fleet, with the detail per vessel. See work and rest hours and our hours of rest software guide.
3. An ISM-aligned safety management system
The ISM Code provides an international standard for the safe management and operation of ships and for pollution prevention, and domestic and Workboat Code operators face similar expectations. Look for:
- incident and near-miss reporting with corrective actions
- drill and safety meeting records
- SMS documents with read-and-acknowledge
- risk assessments, checklists and inspections
WaterTightVM’s safety management module covers these, with drills and exercises, incident reporting, risk assessments, SMS documents and Master’s rounds. Crew read and acknowledge SMS documents and fleet notices in the crew app or on the web, and the DPA gets a shore safety inbox. For more, read how to improve ISM compliance.
4. Planned maintenance (PMS) sized for small fleets
On many small vessels the planned maintenance system lives in the Chief Engineer’s head or a notebook, which leaves the office planning blind. A PMS for small fleets needs an equipment register, scheduled jobs with checklists, defect reporting and spare parts, without a consultant to set it up.
WaterTightVM’s maintenance management is on every plan and includes an equipment register, job checklists, defects, spare parts and dry dock planning. Crew can complete and sign off jobs offline in the crew app. See also managing maintenance across a fleet.
5. LOLER and lifting equipment
Workboats, aquaculture vessels and offshore support craft often carry cranes, A-frames and davits. On UK ships, the Merchant Shipping and Fishing Vessels (Lifting Operations and Lifting Equipment) Regulations 2006 require thorough examination of lifting equipment exposed to conditions causing deterioration: at least every 6 months for equipment for lifting persons and for accessories for lifting, at least every 12 months for other lifting equipment, or in line with an examination scheme (legislation.gov.uk, regulation 12). A LOLER register that holds examination certificates and reminds you before they are due prevents a common audit finding.
WaterTightVM’s LOLER lifting equipment module is optional, works alongside the PMS and is included from the Advanced plan up. It keeps a register of lifting appliances with inspection types, certificates, batch sign-off and reminders before each examination falls due.
6. Crew, HR and ship–shore communication
Compliance is about people as well as paperwork. Small operators benefit from having in the same system:
- crew management, with safe-manning positions and the certificates each one needs
- HR, leave and performance, plus seafarer employment agreements
- ship–shore messaging and fleet notices, so “what’s outstanding?” isn’t chased by phone
Offline first: why the crew app matters more than the dashboard
Most vessel management software is sold on its shore dashboard. But the data only exists if crew enter it, and crew won’t use a desktop portal over a weak connection. Ask every vendor: Does the crew app work offline, and how does it sync?
WaterTightVM’s crew app is built to work offline. Crew prepare it while connected, work at sea, and records sync when the vessel is back in range. The iOS crew app is currently in TestFlight beta, and tablets can use the installable web app. The office sees the result on the fleet dashboard.
Vessel management software vs ship management software vs fleet management software
Buyers use these terms almost interchangeably:
- Ship management software usually means tools for third-party ship managers running large, deep-sea fleets, often alongside chartering and accounts.
- Fleet management software is often used for road vehicles. In maritime it usually means the same as vessel management software: oversight across several vessels.
- Vessel management software is the broadest term, and the one small and domestic operators tend to search for.
What matters is not the label. It is whether the system covers certificates, rest hours, safety and maintenance for your type of vessel, at your fleet size.
A checklist for choosing vessel management software
- Regulatory fit: Does it cover ISM or Workboat Code SMS needs, STCW hours of rest and LOLER? Ask exactly which rules it checks.
- Offline crew app: Can crew record rest and sign off maintenance with no signal?
- Gradual start: Can you start with one area, such as certificates, this week and add others later?
- One record: Do ship and shore see the same live data?
- Exports: Can you produce rest-hour records, incident reports and certificate registers for an audit or PSC when asked?
- Security: Are there role-based permissions, encryption and multi-factor authentication? Check what each vendor states publicly, for example on our security page.
- Sized for you: Is it built for a small fleet, or a big-fleet tool cut down?
How WaterTightVM fits
WaterTightVM is vessel management software built by a Master Mariner for small and mid-sized fleets, including workboats, offshore and renewables support, ferries and aquaculture. It brings certificates, crew and hours of rest, ISM safety and planned maintenance into one vessel record, with an offline crew app for the people on board, so you can retire each spreadsheet when you’re ready.
You can also start from the vessel management software landing page, then Book a 30-minute call or see the platform.
If the Workboat Code Edition 3 deadline or your next audit is on your mind, read our guide to fleet management software for workboats, or talk to us now.
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Sources
- GOV.UK: United message for Workboat Code Edition 3 deadline, “Check. Prepare. Book”
- MIN 698 Amendment 2 (M), GOV.UK
- Splash247: coverage of the SSI From Welfare to Risk report
- IMO press briefing, Busan, 28 October 2026
- Merchant Shipping (Maritime Labour Convention) (Hours of Work) Regulations 2018, regulation 6
- IMO: the ISM Code
- Merchant Shipping and Fishing Vessels (LOLER) Regulations 2006, regulation 12