Datum Digital builds business websites and shows its working.
A business website lets the right buyer find you, trust you and get in touch. We build sites that work, for the web as it is now.
Our story
The engineering consultancy that was formed in January 2008 began working on websites almost immediately when a friend of the founder was unhappy with his website. The precision-engineering background kicked in, and the founder took the site apart to see how it worked and then rebuilt it. After a name change, the consultancy became Datum Digital LLP and the partnership focused totally on building websites, using the version of WordPress that was current then. Even now, we start by taking sites apart; measure, assess and then rebuild as required.
The team has grown from the same roots: industrial and manufacturing engineering, aerospace and electronic assembly, senior software development at a major UK banking group with JavaScript and security experience, and practical marketing, which is why we judge a site by whether the enquiry arrives.
The old model was design first and a plugin for everything. Since 2008, site by site, we have changed our minds: content and code first, and everything measured.
How we work with clients
No offices, account managers or pitch teams between you and the engineer.
Jointly
The content is written by your people and ours. You know the business and we know the engineering, which gives us a good understanding of what it needs before anything is built.Measured
Every figure we publish carries its tool, date and method, before and after.Fixed prices
Agreed in writing after a measurement or a scoping conversation. No quote without one.Yours
The code, the domain and the hosting are in accounts in your name, or transferred to you on request. Care after launch is part of the job, with a log you can read.
What makes us different
Many web design companies sell on reputation: a wall of client logos and words like “award-winning”. We would rather you could check what we say.
- Claims you can check. Every figure on this site names its source and date, and every article shows when it was last reviewed. Our own site’s speed and security are measured in public, on This site.
- Results, not stories. Each case study gives its measured figures, with the tool, the date and the method, and the figure before we started where there was one.
- Nothing on the page without a reason. No page builder, and no pile of tracking, testing and font services loading on every page. We add another company’s script only when the site needs it.
- Your goals first. We work with you to find where your site could do more for the business, and put those changes in order of what they are worth. If something won’t pay for itself, we say so.
Last reviewed 30 October 2026.
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