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The Vislock Story

Founder and CEO, had been setting up and managing multiple permit to dig processes on some of the largest projects in Europe.

This led to the creation of Vision Survey, a company specialising in overground utility surveys for major infrastructure projects with clients such as Balfour Beatty and Laing O’Rourke. With a team of over one hundred professionals, Vision Survey delivers a wide range of services to the UK construction industry, including engineering and land surveying, underground mapping, and project risk management.

The CEO’s eureka moment came after growing frustrated with organisations’ traditional, paper-based permit to dig procedures — processes that were cumbersome, confusing, and inefficient. These outdated methods often led to costly errors and an increased risk of utility strikes. There had to be a better way to standardise and modernise the approach.

Drawing on more than 25 years of experience, the CEO and the Vision Survey team developed Vislock — the only fully paperless platform designed to speed up, streamline, and de-risk construction projects. Vislock is transforming how teams manage excavation safety, opening the industry’s eyes to a smarter, more efficient way of working.

Today, Vislock is in active use across major UK infrastructure projects and is proving to be a game changer for the construction industry. Its user-friendly interface and intuitive design make it accessible to all, regardless of digital proficiency, ensuring safer and more efficient project delivery.

No matter your project – big or small – the team at Vislock are happy to help. 

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Meet the Team

Managing Director

John Gray is the managing director of Vislock. After 25 years within the permit to dig industry, John realised the need for a digital paperless system. In his spare time, John enjoys training and taking part in various charity events.

Technical Director

Mehdi Kermani is our Technical Director and the driving force behind the software’s development. With a strong background as a software developer for many years, Mehdi Kermani and his team of five developers continuously enhance Vislock’s platform, integrating AI technologies and innovative features to keep it at the forefront of the industry.

What people say about Vislock

“Some of my biggest issues were lost permits, time to print and prepare permit packs and also the quality of the A3 drawings used on sites. Not only does Vislock already solve all these issues but vastly improves available information, time and quality.”

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Scott Gizzy, Service Protection and Service Clearance Manager, Heathrow

What people say about Vislock

“Having worked with paper permits for well over 20 years, I can only see this being the way forward. Having all the information readily available when the site is potentially 100 miles away is a real benefit – and something I’d suggest to any organisation”

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Carl Caswell, Ferrovial

What people say about Vislock

“The system stores all information so records of signatures/briefings/incidents can be checked even months after the permit has been closed.

This avoids the paper permits being lost on site and all information being lost. It’s quick and easy to use/navigate and could most certainly be picked up by anyone in the construction industry.”

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Dan Stanton, Vision Survey

Download Your Free Guide

Get to grips with all software features and start your paperless journey today.

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Ready to Join Others and Start Digitising Your Permit to Dig Process?

Book your demo here

The no obligation demonstration only takes an hour of your time and will give you the opportunity to familiarise yourself with the platform, explore the key features and ask any questions you may have.

No matter where you are, a team member at Vislock will arrange a visit – either in person or online – so that you can see for yourself the benefits that a digital permit to dig platform can bring.

Simply fill out the form here and an expert will be in touch.

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