Maritime Sanctions Screening Software: How to Choose (2026)

The short answer: choose maritime sanctions screening software that screens vessels by IMO number as well as by name, traces beneficial ownership through holding companies, adds compliance history such as detentions, re-screens when lists change, and records every decision in an audit trail. Traditional name-screening tools miss most of this, because ships change names and flags while keeping the same identity.

Sanctions risk in shipping hides in the gaps between systems. A vessel is renamed and reflagged. Ownership runs through a chain of companies in different jurisdictions. A counterparty that passed last month appears on a list issued this week. Screening that only matches names against lists was built for people and companies, not ships.

Comparison

Maritime compliance software vs traditional sanctions screening tools

Both screen against sanctions lists. The difference is how much of maritime identity and history they understand.

Check	Traditional screening tool	Maritime compliance software
Main identifier	Name matching	IMO number plus name, flag and history
Name and flag changes	Often missed	Followed through the IMO number
Beneficial ownership	Direct parties only	Traced through holding companies
Maritime history	Not covered	Port state control and detention records
Audit trail	Varies	Who checked, what was found, what was decided
Best for	People, banks and general trade	Vessels, owners, charterers and maritime suppliers

What to look for

How to choose maritime sanctions screening software

Use these checks to compare vendors on the risks that actually matter in shipping.

Screens by vessel identity. It should search by IMO number, not only by vessel name.
Traces beneficial ownership. It should look through holding companies to the parties that control the vessel or counterparty.
Covers the lists you are bound by. Confirm which sanctions lists and watchlists it screens against, and how quickly updates arrive.
Adds maritime history. Port state control and detention records show how a vessel and operator actually behave.
Re-screens over time. A one-time pass is not enough. Ask how the tool re-checks counterparties when lists or ownership change.
Documents every decision. You should be able to show a regulator, insurer or bank who checked what, what was found, and what was decided.
Fits your workflow. Screening should happen before you transact, next to procurement, chartering and finance systems.

Scope

Screening vs vessel behaviour monitoring

Counterparty screening and vessel behaviour monitoring are different jobs. Screening answers "who am I dealing with, and are they sanctioned?" Behaviour monitoring uses AIS tracking data to look for signs such as transmission gaps or ship-to-ship transfers.

Some compliance teams need both. Ask every vendor which of the two it actually does, and do not assume a screening tool covers behavioural risk.

Watch for

Red flags in a sanctions screening evaluation

Name-only matching

If the tool cannot search by IMO number, a renamed vessel can pass unnoticed.

No record of decisions

A green tick with no audit trail will not help when a bank or regulator asks how you decided.

Unclear list coverage

Ask exactly which lists are covered and how fast new designations appear.

A demo on easy cases

Test with real counterparties, including vessels with past name or flag changes.

FAQ

Maritime sanctions screening, answered

What is maritime sanctions screening software?

Maritime sanctions screening software checks vessels, owners, charterers and suppliers against sanctions lists and watchlists before you deal with them. Unlike general name-screening tools, it understands maritime identity: IMO numbers, flag and name changes, and ownership chains that run through holding companies. Good tools also record each decision so you can prove the check was done.

How is maritime compliance software different from traditional sanctions screening tools?

Traditional sanctions screening tools match names against lists. That works for people and companies, but ships change names and flags while keeping the same IMO number, and ownership often sits behind several holding companies. Maritime compliance software screens by vessel identity as well as by name, traces beneficial ownership, and adds maritime history such as port state control detentions.

What is the best maritime compliance software for sanctions screening?

The best choice depends on your risk. Look for screening by IMO number as well as by name, beneficial ownership tracing, compliance history such as detentions, a full audit trail of every decision, re-screening when lists change, and integration with the systems where you transact. Test shortlisted tools on real counterparties, including ones with past name or flag changes.

Do we still need a separate tool for vessel tracking and AIS analysis?

Possibly. Some maritime risk tools analyse AIS data to spot gaps in transmission or ship-to-ship transfers. Counterparty screening and behavioural AIS analysis are different jobs, so check which one each vendor actually does. Tidal focuses on screening, ownership, compliance history and documented decisions.

How does Tidal handle sanctions screening?

Tidal screens vessels and counterparties against sanctions and watchlists, checks beneficial ownership and IMO number, and pulls together compliance history such as port state control and detention records. It records who ran each check, what was found and what was decided. It runs standalone or alongside ShipNet and Bassnet, goes live in about a week, and starts from $2,500 per month.

Maritime sanctions screening software