Technical documentation: clear, trusted, and AI-ready
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Why choose us?

Experience: 23 years and >300 customers

Quality assured: ISO 9001:2015 BSI certified FS 588086

Understanding: expertise in many industries

Innovation: applying the latest and best for you

Service: >90%
customer retention

Flexibility: in-house team + worldwide networks

About us
3di is an award-winning provider of technical writing, translation and content operations services. Established in 2002, 3di has a proven track record of delivering technical documentation that’s clear, trusted and AI-ready.
Our customers, in the UK, Europe and the US, make complex products: scientific instruments, telco and networks, software, robotics and automation, and medical devices.
With our 30+ in-house team, a worldwide network of specialists and the latest content automation tools, 3di delivers the technical documentation expertise you need:
- Award-winning technical manuals, product user guides and software user help
- Translation and localization – efficient multi-lingual versions of your technical product content
- API and developer documentation that builds engagement and supports efficient development
- Building, hosting and managing award-winning information portals
- Recommending and implementing a Content Operations capability: strategy, processes, tools and people
- Delivering migration of legacy documents to support digital transformation and AI-readiness
- Work with 3di as your outsource partner, or to provide contractor technical authors managed by you
- Support your strategy to embed new tools such as Markdown, a DITA CCMS, or Madcap Flare
3di is BSI audited to ISO9001:2015 standards and a member of the ISTC (the Institute of Scientific and Technical Communicators). 3di has also won numerous awards for a variety of projects, which you can read about on our awards and accreditations page.
Case Studies
3di works with organisations of all sizes, providing bespoke technical writing, translation and content operations services. Our customers, including world-renowned brands and specialist businesses, all face complex communication challenges.

Who we work with
Our recent posts
Here are some of our most recent posts, where we share what we have been doing, what we know about technical communication, translation and content operations and what we think of the latest industry developments.
Content Operations helps you publish content people will trust
In this article we look at how a good content operations process is integra…
Best practices for laboratory instrument documentation
In this article we look at best practices for laboratory instrument documen…
Screenshots: the most overused visual in documentation
In this article, we analyse when it is worth using screenshots in technical…



















