About
We Built PortFlow Because Baltimore Port Operations Deserved Better.
Our Mission
Eliminate Preventable Costs at the Port of Baltimore.
Demurrage charges at Seagirt Marine Terminal, Dundalk Marine Terminal, and Tradepoint Atlantic cost freight forwarders and importers millions of dollars every year — and the vast majority of those charges are preventable. Not because operations teams aren't working hard, but because the information they need arrives too late, is spread across too many systems, and requires too much manual effort to act on in time.
PortFlow was built to close that gap. We combine AI-driven container tracking with human-managed operations support to give Baltimore port users visibility and coordination they've never had before — on a predictable flat retainer, with no per-transaction fees and no long-term contracts.
Our vision is straightforward: every freight forwarder, importer, and drayage provider working through the Port of Baltimore should have the same operational precision that the largest carriers take for granted. PortFlow makes that accessible without a 12-month implementation or an enterprise software budget.
How It Works
Managed Operations, Not Just Software.
Most visibility tools give you a dashboard. PortFlow gives you operational action. The difference matters when you're managing cargo at Seagirt with a 48-hour window before demurrage starts.
Our AI pulls container status data from Baltimore terminal systems every 6 hours, calculates last-free-day timelines, and fires automated alerts at 72, 48, and 24-hour intervals — before the demurrage clock starts. We don't wait for you to log in and check. We push the information when it matters.
On the documentation side, we pre-check ISFs, BOLs, customs entries, and delivery orders before submission. We're looking for the errors that cause customs holds — wrong HTS codes, missing references, mismatched consignee information — and we flag them before they become delays that cost $150–$300 per container per day.
And unlike a SaaS platform, when something needs a phone call or a direct intervention, our team makes it. That's the managed services model — you pay for outcomes, not access.
Why Baltimore
The Port of Baltimore Has a Specific Set of Challenges.
Seagirt Marine Terminal, Dundalk Marine Terminal, and Tradepoint Atlantic each operate with their own gate protocols, cutoff schedules, and congestion patterns. Generic logistics software treats all ports the same. PortFlow doesn't.
We focused exclusively on the Port of Baltimore because depth beats breadth in port operations management. Knowing the specific quirks of Seagirt's appointment system, understanding how chassis availability at Dundalk fluctuates by day of week, recognizing Tradepoint Atlantic's specific reefer handling protocols — that operational knowledge only comes from focus.
The Port of Baltimore handles over 11 million tons of cargo annually and serves the Mid-Atlantic as a critical import/export gateway. The freight forwarders and importers operating through it deserve operational infrastructure built for their specific environment. That's what we built.
The Founder
Built by Someone Who Knows the Port.
Craig Butler
Founder, PortFlow Logistics
Craig is a Maryland-based logistics and operations professional with direct experience managing cargo movement through the Port of Baltimore. Having worked through the operational realities of Seagirt, Dundalk, and Tradepoint Atlantic firsthand, he built PortFlow to address the specific gaps he saw costing shippers and freight forwarders avoidable money.
PortFlow is the infrastructure Craig wished existed when he was managing port operations manually — automated where automation makes sense, human-managed where human judgment matters, and priced for the mid-market operators who need it most.
Stop Paying for Demurrage
You Could Have Prevented.
Book a free 20-minute Port Ops Review. We'll identify your top three operational risk areas and show you exactly how PortFlow addresses them — no commitment required.
Book My Free Port Ops ReviewNo commitment · 20 minutes · Focused on your Baltimore port operations