About us

Welcome to

Formed in 2009 by Sarah Treanor & Mark Thurman at the height of the financial crash, a time when employment felt particularly perilous.

Based in Leicester and Hereford we service customers across the entire UK and beyond.

Enterprise skills - available to all
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Before founding Credible Systems, Sarah and Mark had many years of experience delivering large scale technology projects for clients across Europe. Bringing this experience and maturity to clients of all sizes is in everything we do.

Success Driven
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We pride ourselves on our flexibility and willingness to make your projects a success for you. We know our clients are particular about who they partner with and so are we. We seek long term relationships where possible.

Happy people!
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It may sound trite, but we enjoy working with people we like.

Indeed, our mantra is one of "if you can pick who you work with, why not work with people you like and who like you?"

All Stars

The Team

We are spread across 2 teams, the Design and Development Team and the Education Projects Team.

Normal rules apply.

Approach with caution, bearing pizza. Do not feed after midnight.

Mark Thurman
Mark Thurman [He/Him]
Director - Design & Development Team

An experienced Project Manager, Mark leads the Web Development department. He's also been known to dabble in graphic design.

Away from his desk, he can often be found playing with swords, twirling his moustache and sipping fine rum. Though rarely at the same time.

Callum Thurman
Callum Thurman [He/Him]
Web Designer

Passionate about design and people, Callum enjoys working with new clients of all backgrounds and experience levels.

In his spare time he enjoys Sim Racing and binging on Netflix.

Sarah Treanor
Sarah Treanor [She/Her]
Director - Education PMO

An experienced IT engineer and network designer, Sarah works with our education customers and leads the IT Support Team. She is passionate about successful support & delivery.

In her spare time she is sports mad, and can usually be found at major sports grounds across the country.

Martin Robinson [He/Him]
Senior Technician - Education

An experienced IT professional who has worked across several industries and disciplines.  Currently focussed in the Education arena, specialising in Virtual Windows Server environments, and Storage and Backup Technologies.

Away from work he can be found playing with the Ratby Co-operative Brass Band, or wearing a flat cap cheering on the mighty Featherstone Rovers RLFC.

Elsbeth Woodgate
Eslbeth Woodgate [She/Her]
Technical Team Lead - Education

Outside of work she can be found on or beside a hockey pitch, eating, bouldering or buying plants she has no space for.

Annie Sibson
Annie Sibson [She/Her]
Technical Support - Education

Have you tried turning it off and on again?

Luke Finlay - Technical Support
Luke Finlay [He/Him]
Technical Support - Education

During his spare time he enjoys going on long hikes in the countryside or may be found tinkering on his fish tank.