Case Study:

D4Drivers is a leading provider of HGV medicals, PCV medicals, and occupational health services across the UK. With the largest network of doctors and clinics, D4Drivers is the first-choice medical provider for Group 2 drivers in the UK, examining over 10,000 drivers per month across 100 clinics nationwide. I-Tel Group was approached to address a specific challenge related to the mandatory Snellen eye tests for HGV drivers, aiming to eliminate the potential for candidates to memorise letter sequences.
The existing Snellen eye test boards used by D4Drivers had a static letter configuration, which allowed drivers to memorise the sequence, undermining the test’s accuracy and reliability. This presented a significant issue as accurate vision testing is crucial for ensuring road safety. D4Drivers needed a solution that maintained the integrity of the vision tests while being cost-effective and easy to implement across their extensive network of clinics.

10,000 drivers per month

100 clinics nationwide

Our solution

I-Tel Group’s design team quickly identified an alternative approach by developing a Snellen chart with a varied letter sequence. We collaborated closely with our supply chain partners to manufacture a double-sided Snellen Chart that adhered to the exact specifications of the original. The new chart design included two different letter sequences, allowing examiners to alternate between them to prevent memorisation.

Key steps in our solution included:


Design and Innovation

Created a dual-sided Snellen chart with distinct letter sequences on each side.



Worked closely with D4Drivers’ examiners to ensure the new design met all necessary requirements.


Manufacturing and Distribution

Partnered with a trusted manufacturer to produce high-quality charts and ensured timely distribution to all 100 clinics.


The results

The implementation of the new dual-sided Snellen chart has been highly effective and well-received by eye examiners. Key outcomes include:


Improved Test Integrity

The varied letter sequences have eliminated the possibility of candidates memorising the test, thereby improving the accuracy and reliability of the eye exams.


Enhanced Safety

More accurate vision testing has led to better detection of vision issues, ensuring that only those with adequate eyesight are certified to drive, thereby enhancing road safety.


Cost Efficiency

The dual-purpose design has reduced costs by minimising the need for multiple charts.


Time Savings

The new charts have streamlined the testing process, saving time for examiners and enhancing operational efficiency.


Positive Feedback

The innovative solution has led to further developments across other key areas of D4Drivers’ business, showcasing I-Tel Group’s ability to solve complex problems and deliver tangible value.

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What our clients say

“I-Tel are problem solvers. They are fantastic to work with and nothing is off the table when it comes to support.”

Tom Blain

Commercial Director

Gareth Shaw, I-Tel Group

Gareth Shaw

Senior Procurement Consultant

Gareth has over 19 years’ experience in commercial procurement contract management across both public and private sector. Holding senior positions at the Ministry of Justice and Turner and Townsend Gareth has overseen several multi million-pound contracts.
Guiding I-Tel in best practice and sustainability while offering practical solutions to steer our procurement team towards red tape reduction and compliant, efficient services.

Gareth Thompson

Legal & Compliance

Gareth is a qualified, senior commercial solicitor with 30 years’ experience. As counsel to the directors Gareth brings a wealth of experience to enhance I-Tel’s legal compliance and ensure supply chain legitimacy.
Overseeing all our commercial agreements and supporting the individual requirements of our clients, Gareth brings tremendous credibility to the whole organisation.
Dee Sarikaya, Head of Marketing, I-Tel Group

Dee Sarikaya

Head of Marketing

An impressive background with blue chip companies Dee is a former global B2B Commercial manager for Dyson. A proven track record in marketing and communications Dee is responsible for I-Tel’s client onboarding and messaging.
With huge experience in strategic international campaigns and working effectively in cross-functional teams Dee brings strong commercial acumen alongside an excellent ability to interact and influence at all levels.
Paul Keenan, Head of Client Services, I-Tel Group

Paul Keenan

Head of Client Services

Paul has over 30 years’ experience in B2B sales in both the public and private sector and heads up our client services division. Overseeing high value public and private sector contracts Paul has in depth knowledge of the industry.
Key contact to senior management and C suite clients with a problem solving, customer service excellence ideology.
Andrew Plummer, Operations Director, I-Tel Group

Andrew Plummer

Operation Director

A co-founder from the outset Andy has headed the operations team for I-Tel group. An engineer by trade Andy has a vast experience in manufacturing, logistics and warehousing.
Overseeing the day to day complexities of our hybrid model and ensuring all the individual parts function to produce the seamless highly efficient business model we see today.
Melvin Gauci, MD, I-Tel Group

Melvin Gauci

Managing Director

Managing Director and founding partner at I-Tel Group. Mel has been instrumental in transforming the business from a start-up cartridge manufacturing facility to an innovative forward thinking procurement company.
With 15 years at the helm and in depth knowledge of I.T. infrastructure and data analysis I-Tel Group is today one of the latest key players in the indirect procurement space.

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