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Industry insights, marine technology updates, and company news — written by our working engineers and divers, not marketers. Filtered signal, not noise.

CII compliance article Industry Insight

CII and the Hidden Economics of Hull Husbandry

How the IMO's Carbon Intensity Indicator is reshaping the business case for proactive hull and propeller maintenance. Our analysis of 142 vessels across the Fleet.io platform shows that operators who adopt a quarterly hull husbandry cycle improve their CII rating by an average of 1.3 points annually — often the difference between a C and an A rating.

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Hyperbaric welding Technical

Inside a Hyperbaric Welding Habitat

A walk-through of how we build, pressurize, and certify a dry-habitat for Class A underwater welds — and why it matters for critical structural repairs.

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Fleet.io platform Platform

Fleet.io 3.2 — API Access and Webhooks

We've opened the Fleet.io platform to direct API integration. Technical superintendents can now pull live work order data into their own dashboards and ERP systems.

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Biofouling regulations Regulation

EU Biofouling Directive — What Operators Need to Know

The new EU biofouling directive enters force this summer. Here's what it means for in-water hull cleaning requirements in European ports, and how to stay ahead.

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Thruster retrofit Case Note

The Economics of Rope Cutter Retrofits

A detailed ROI analysis from our Piraeus engagement: four vessels, one retrofit program, and why the investment paid itself back in seven months.

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ISO 484 Class S Technical

ISO 484 Class S — What It Means, What It Doesn't

The highest class of propeller finish recognized by the marine industry. A field engineer's view on when it's worth pursuing, and when Class I is sufficient.

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Singapore hub Company

Charlie Frey Opens Singapore Hub

Our fifth permanent hub station enters full operation in Q1 2026, expanding 24/7 dive capability to the heart of the Asia-Pacific commercial fleet.

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EEXI compliance Industry Insight

EEXI, EPL, and the Propeller Polishing Dividend

How a Class S propeller finish contributes measurably to a vessel's Energy Efficiency Existing Ship Index — and why the timing of the work matters.

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Safety culture Culture

Five Years Without a Lost-Time Incident

A note from our HSE Director on what five years of clean safety numbers actually mean — and what the next five years will demand from us.

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Subsea concrete Technical

Subsea Concrete Formwork — A Field Guide

Our proprietary form system explained: how we pour structural concrete in-situ, without cofferdams, on active port infrastructure.

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