Aging like fine wine, since 1998.

OnsiteIT has been supporting local businesses for nearly three decades.

For around 28 years, we’ve helped organisations across Essex, Suffolk, Norfolk and beyond keep their IT running smoothly – from small day-to-day fixes to long-term strategic support. Over the years, technology has changed massively, but our approach hasn’t: clear advice, dependable service, and being there when our clients need us.

We’ve grown alongside the businesses we support, building long-term relationships rather than short-term contracts. Many of our clients have been with us for years, and that trust is something we don’t take lightly.

Our ethos.

In 2023, the business was re-branded to OnsiteIT, with Matthew Underwood taking over as Managing Director and owner.

Having worked in IT since leaving college, Matthew saw first-hand how many businesses were being priced out of quality support, or locked into rigid MSP contracts that didn’t truly put service first.

OnsiteIT was shaped around a simple idea: affordable managed IT that doesn’t compromise on service.

That focus has paid off. In the last three years alone, the business has experienced more growth than in the previous 28 years combined – driven by word of mouth, long-standing client relationships, and a reputation for doing things properly.

Meet the people who make OnsiteIT...

  • Matthew Underwood

    Matthew took over as Managing Director & Owner in May 2023, having joined Onsite in 2020. He continues to be hands-on across the business, supporting the team day to day and playing an active role in new client onboardings to ensure everything runs smoothly from the outset.

    He’s also known for being the office pool champion – and yes, he will mention it if given the chance.

  • Sofia Gama

    As Executive Director and co-owner of OnsiteIT, Sofia is central to shaping the strategic direction of the business and ensuring it continues to grow the right way. She works closely with Matthew on decision-making, planning, and keeping the operation running like clockwork.


    A natural organiser and steady presence, Sofia brings clarity and calm to even the busiest days. As a qualified Maths teacher with a Master’s degree in Psychology, she really is the smartest of the bunch.


  • Hayden Worrall

    Hayden is our Junior Network & Systems Engineer and has recently completed his training towards his Level 4 qualification and CompTIA A+ certification. He plays a key role in handling first-line support issues, helping customers with day-to-day IT problems and ensuring issues are resolved quickly or escalated appropriately.

    He’s also the office darts champion — proof that his aim is just as good off the network as it is on it.

  • Tom Charnock

    Tom is our Network & Systems Engineer, having joined the Onsite team in June 2026. Tom has 10 years experience, and most recently worked as an IT engineer for City & Country building up plenty of experience keeping users connected and technology behaving itself.

    Whether he’s remotely troubleshooting stubborn PCs or on-site resolving complex network-level issues, you can be confident you’re in safe hands.

  • Bruce

    Bruce’s title says it all. As our CFO (Chief Fun Officer), he makes sure the office never takes itself too seriously and keeps the engineers on their toes — not least because he has a habit of trying to steal their lunches.

    He’s not quite ready to jump on the helpdesk just yet, but we’re working on it.