The AI desk for bunker brokers

Know which vessel needs fuel before anyone else calls.

Stemline watches vessel arrivals, your relationships and supplier coverage — then tells you who to call, drafts the quote, and waits for your approval.

  • 14-day trial
  • No card
  • Data private to your firm
  • Nothing sends without approval

Your stack today

Your tools each see part of the stem. Stemline sees all of it.

Outlook / Gmail

Threads hold the RFQ, but the stem lives nowhere — context is lost when the inbox moves on.

Communications sit on the deal and the company — searchable, linked to margin and follow-up.

Deals and communications in Stemline

How it works

Spot. Prioritise. Quote.

Spot

Arrival radar and fleet context surface demand before the RFQ lands.

Spot demand on the map

Prioritise

Daily brief and tasks rank who needs a call — with the reason each contact matters.

Prioritise the day

Quote

Coverage, margin, and agent drafts in one flow — you approve before anything sends.

Quote with margin in view

Your AI agent

An agent that asks first.

Stemline does the legwork between calls. You make every decision that matters.

Arrival Watch

Suggests

Flags vessels heading to your bunker ports in the ETA window, matched to owners in your book.

Re-engage

Suggests

Surfaces dormant counterparties with fresh activity — new fixture, new vessel, or arrival.

Quote Drafter

Drafts — you send

Builds a stem quote with supplier coverage and target margin; drafts the email.

Supplier Coverage

Suggests

Shows who can deliver grade X at port Y in window Z.

Daily Brief

Automatic

Morning ranked call list with reasons — ready when you sit down.

Pipeline Hygiene

Needs approval

Proposes stage moves from logged comms; manager approves on multi-seat desks.

Time back on the phone

A broker's day in minutes

Replace manual tab-hopping with one desk — times are placeholders until we publish measured averages.

  • Build tomorrow's call list

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  • Match an arrival to your book

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  • Check supplier coverage at a port

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  • Draft a counter with margin in view

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  • Log comms against the deal

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  • Approve agent follow-ups

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Built for trust

Your book stays yours.

Brokers live on relationships and margins. Stemline is built so neither leaves your firm.

  • Nothing sends without you. The agent drafts; you approve every quote and email.
  • Managers stay in control. Multi-seat desks can require approval for pipeline changes.
  • Nothing disappears. Records are never hard-deleted.
  • Your data is walled off. Each firm’s data is isolated at the database level.

Private to your firm

  • Contacts, PICs, and pipeline notes
  • Communications and negotiation history
  • Supplier relationships and coverage
  • Fixtures, margins, and quotes in flight

Shared industry reference

  • Ports and UN/LOCODE taxonomy
  • Fuel grades (HSFO, VLSFO, MGO, …)
  • Public bunker indices and FX
  • Vessel registry facts by IMO

Who it’s for

From solo brokers to full trading desks.

Independent broker

One seat, full desk — CRM, brief, margin tools, and agent assist.

Start free trial

Broker desk (2–10 seats)

Shared book, roles, arrival radar, and manager approvals.

Start free trial

Trading desk

Live AIS, opportunity radar, and premium desk tools from three seats.

Book a demo

Your book. Your firm. One desk.

Start your 14-day trial today. No card, no setup call, your data private from day one.