We destroy data securely and permanently

Secure Data Erasure

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Sustainable tech 4 Good – Secure Data-Erasure

Secure Data-Erasure


Sustainable Tech 4 Good was born out of our sister data services company Veritas Digital Services Ltd. We have a long pedigree of data-secure services for businesses going back almost 30 years.

Deleting data is not enough – you need to securely data-erase.

To protect yourself from inadvertent data leaks, comply with GDPR, and protect the recipients of donated devices, all data should be erased to HMG Infosec 5 enhanced standard.

Our data erasure suite uses bespoke racks, made in-house. This equipment utilises the Government standard for data erasure, HMG Infosec 5 enhanced, the same standard employed by the widely-used Blancco software.

The Government enhanced standard requires a three-pass data erasure process, one pass of “zeros”, one pass of “ones” then a random pass with a verify element. Our custom-made data erasure racks use algorithms that adhere to this standard.


Any disk that fails due to a bad write or a bad verify, even to a single sector, is deemed to have failed and will be degaussed using our certified degausser (Verity Systems SV91m).

Our bespoke systems can also access and unlock hidden areas on a disk (HPA, DCO); these areas are removed prior to the data erasure process. Failure to remove these areas can potentially lead to data remnants after erasure. This extensive process is necessary to ensure no data remains on any device. 

We are ISO9001 and ISO14001 accredited, are registered with the Information Commissioner’s Office and have been approved by the FCA for data services within the insolvency sector. We maintain a £1m indemnity insurance policy.


Our ST4G Tech Services offers a comprehensive range of solutions for all your data and decommissioning needs.

Secure Data Erasure

We do data, and you are in safe hands when you use our range of data erasure services, providing certification of data erasure by model and serial number.

Secure Data Recovery

Whatever the cause, we understand that unexpected data loss can be extremely stressful and you just want your lost data back, accurately recovered, at a reasonable price and fast.

Forensic-Light®

An affordable forensic data recovery solution designed to support insolvency companies, recovering data on all tech storage.

JUST OVER 67% OF DATA LOSS IS CAUSED BY HARD DRIVE CRASHES OR SYSTEM FAILURE

We have successfully recovered data from all different types of devices, running all major operating systems, utilising all forms of digital storage media

Hard Disk Drive Destruction & Recycling

We use a combination of degaussing, crushing and shredding to physically destroy redundant hard drives – recycling components with over 98% recovery and 0% to landfill

Secure Data Destruction

We destroy data securely and permanently, preserving hard drives intact for redeployment and reuse. This is not only environmentally responsible, it also makes sound financial sense

Professional Data Recovery

We help people recover from unexpected data loss – ranging from individuals, who have lost precious photographs, to FTSE 100 companies that have lost business-critical data

Forensic Data Recovery

Veritas Forensic-Light® is an affordable forensic solution designed to support insolvency companies, by forensically recovering data on all tech storage, from mobile phone to networking and datacentre

SEE WHAT WE’VE BEEN UP TO

Our latest news

  • Sponsoring Sophie Raworth at Cambridge Literary Festival

    Sustainable Tech 4 Good is proud to continue its partnership with the Cambridge Literary Festival supporting inspiring conversations that drive positive change. It was a real highlight for us to sponsor the recent Sophie Raworth event, hearing her speak so openly about resilience, wellbeing, and the power of simply getting outside was genuinely uplifting. Thank…

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  • Sustainable Tech 4 Good joined leaders and B Corp practitioners

    Sustainable Tech 4 Good joined leaders and B Corp practitioners at Cambridge Judge Business School for an engaging discussion to explore the signals that genuinely matter for sustainable growth. Matthew Grimes, Professor of Entrepreneurship and Sustainable Futures at Cambridge Judge Business School, opened the evening with a compelling presentation on his research, before welcoming the…

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  • SoCode Recruitment – The Psychology of Sales Leadership event

    Susan Gowling ~ Sustainable Tech 4 Good Founder and Matt Humphries joined Cambridge Online last week to support the SoCode Recruitment event “The Psychology of Sales Leadership”. They were on hand to discuss our cost neutral sustainability solution and explain how your excess tech, once fully data erased, can make a real difference to in-need…

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  • Leading Through Technology, Innovation & Growth Event

    Sustainable Tech 4 Good joined leaders & representatives from the business community for the Cambridgeshire Chamber of Commerce event; “Leading Through Technology, Innovation & Growth” A fascinating evening of discussion and networking hosted by Faye Holland, Chair of the Cambridgeshire Chamber of Commerce and newly appointed Partnership Director of the Cambridge x Manchester Partnership. This…

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  • Everyday Digital Series – Digital Sustainability featuring ST4G Founder

    Everyday Digital Series – Digital Sustainability featuring guest speaker & ST4G Founder, Sue Gowling For those of you who missed this month’s Everyday Digital webinar on sustainability with Studio 24 and Susan Gowling ~ Sustainable Tech 4 Good Founder, we’re pleased to let you know that it’s now available to watch on YouTube: https://www.youtube.com/watch?v=FZTrD-ZSd5Q You…

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  • Helping to promote ST4G – New branded clothing

    Our ST4G team are always out and about collecting and donating tech, so what a great opportunity this is to promote what we do to everyone! Thanks Mikee for modelling them for us. Look out for us on our travels. Take a pic and tag us on social media if you see us!

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  • Thanks from Arthur Rank Hospice Charity

    I would like to personally thank you for donating an iPad (6th Generation) to Arthur Rank Hospice Charity. This will be used within our Chaplaincy and Inpatient Units and will make a big difference to our patients and their families. A daughter of a patient cared for by our Inpatient Unit recently said this, “A…

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  • Our impact to-date to February 2026

    Join the Digital Inclusion Revolution™ At Sustainable Tech 4 Good™ we’ve been tackling digital exclusion since 2020 and the impact is growing every day. 7,494 devices redistributed 12,066 kg of electronic waste saved from landfill Independent. Community-driven. Mission-led. We believe everyone deserves access to the digital world. Together, we can build a more connected, empowered…

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  • A huge thank you from Cambridge Cyrenians

    “A huge thank you to Sustainable Tech 4 Good! Thanks to their support, we’ve been able to provide laptops, mobile phones, and tablets to the people we support who have experience of homelessness. This has helped with everything from accessing training and courses, improving digital skills, accessing support, staying connected, and maintaining and building relationships…

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  • Cogwheel Counselling are incredibly grateful

    Cogwheel Counselling are incredibly grateful to Sustainable Tech 4 Good for a generous donation of 3 laptops. By equipping our staff with reliable technology, their support strengthens the day-to-day delivery of our services and supports the people who keep the cogs turning. Crucially, this donation frees up vital funds that would otherwise be spent on…

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