About Us

About Us

Grammar Experts


Ultimate Proof Ltd was established in 2004 and provides expert proofreading, editing and copywriting services, specialising in working for businesses of all sizes, publishers and authors.

We are renowned for our delivery of high-quality work and building strong relationships with our clients. 

Our satisfied and well-established client base is located throughout the UK and Europe, including corporations, businesses, retailers, government departments, charities and authors.

Reliable Service


We don't work with just anyone! We have scouted some of the industry’s best freelance proofreaders, editors and copywriters, who each work to an impressive standard. Our service is fully managed by Kelly, the Managing Director, and each piece of work is matched to the most suitable editor available. 

Each member of our small freelance team has been carefully selected and tested, is qualified, and has a breadth of knowledge and experience that brings great value to their work.

With a fixed fee and one point of contact, what could be simpler?

Affordable Accuracy


Our impressive company CV includes English Language and Literature degrees (BA and MA), proofreading and copy-editing diplomas along with numerous copywriting, proofreading and editing certificates from respected organisations, such as SfEP and the Publishing Training Centre

Our editorial experience, working for publishers, businesses of all sizes and individuals, means we are confident with any subject or document.

Quite simply, we love words, we love to read and we love to help our clients! Contact us today to find out more.

Kelly Owen


Having established a successful career in publishing, design and marketing, Kelly set up Ultimate Proof Ltd in 2004 and quickly built a strong client base. With experience on both the supplier and the client side, Kelly understands the needs of businesses during the publishing process and the importance of accurate communications and marketing material.

As well as being an excellent proofreader, editor and copywriter in her own right, Kelly manages a well-established team of freelancers to provide a professional and continuous service to her clients. Kelly is the face of Ultimate Proof Ltd and is happy to answer any queries you might have. Simply contact us below.
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