AnchorGuardian targets safer, more proactive anchoring

Anchor monitoring remains a persistent operational concern for captains, particularly where delayed alerts or false alarms undermine confidence at anchor.

Speaking on the Founder Podcast Series, AnchorGuardian founder Thomas Frizlen outlines how the company is aiming to reduce reliance on late-stage alarms by giving crews earlier visibility into anchoring conditions.

“You do not want to have the fire alarm when you already can see the flames,” he says. “In the best case, you want to have it before the fire even starts.”

From reactive monitoring to proactive anchoring

Frizlen says the company was built around a clear operational problem: the lack of reliable visibility once a vessel is anchored.

“I’m first of all a sailor and this was personal pain. There was no peace of mind,” he says.

AnchorGuardian monitors the movement and position of a ship’s anchor delivering intelligent data to minimise the risk of anchor drag, provide predictions and trigger immediate alarms with (the company says) sub-metre accuracy.

Traditional anchor monitoring systems, Frizlen argues, are often reactive, producing alerts after problems emerge rather than helping crews prevent them. Thus, AnchorGuardian aims to provide captains and crew with faster, more reliable data about conditions.

The company increasingly positions this as both a safety and sustainability issue. While originally developed to improve anchoring confidence and reduce operational risk, Frizlen says the system may also support more responsible anchoring practices.

“In the beginning it was very much about safety,” he says. “Over time, we realised that actually we also bring sustainability to anchoring at the same time.”

Building product-market fit with captains

Frizlen is also very keen on product-market validation. Rather than beginning with technology, he says AnchorGuardian focused on testing whether the problem was widely shared across the market.

“I think it’s hugely important when you do a startup, you do not start from the technology, but you start from the pain,” he says. “Then you try to find a solution.”

Early conversations with shipyards at Boot Düsseldorf and captains at the Monaco Yacht Show helped validate demand. The company also received a special mention in the 2023 Dame Awards. Frizlen says he initially approached the market with little more than presentation slides and direct questions.

“I knocked on the boats and said, ‘this is what we’re thinking of, what do you think?’” he says. “The feedback was amazing.”

Those discussions confirmed that anchoring concerns extended beyond his own experience. “Very quickly, I learned that I’m not alone.”

Early installations and captain advocates were also critical to establishing trust, particularly in a safety-led product category. According to Frizlen, the company needed to demonstrate not only technical performance but real operational value.

As the business matures, AnchorGuardian is widening its distribution and support network, including local partners, engineering providers and refit yards to support customers in key yachting markets. More information is available on its website.

About the Founder Podcast Series

This discussion forms part of the Founder Podcast Series, a collaboration between Yachting Ventures, Marine Industry News, and the Ben Taylor Podcast. The series explores innovation, leadership, and the evolving opportunities across the marine and yachting sectors.

This episode featuring Thomas Frizlen was recorded onboard M/Y On Time at the Palma International Boat Show, with venue support provided by Boatsters Black.