Custom Software Development
Bespoke applications designed around the way you work, not the other way round.
Learn moreDriving Business Forward
Software for business. Products for everyone.
Alderstrom is a London-based software company. For businesses, we build custom software, support the products you depend on and supply the licences you need. For consumers, we create and publish our own products.
What we do
Three ways we help
From a first idea to the software you rely on every day, we cover the whole lifecycle.
Product Support
Responsive help, maintenance and updates that keep your software running smoothly.
Learn moreSoftware Licensing
The right software, correctly licensed, for businesses and individuals alike.
Learn moreDirect to consumers
Our own products
We don't only build software for clients. We design, publish and support products of our own, sold directly to the people who use them.
English grammar reference and learning platform
The Grammar Index
A comprehensive English grammar reference and learning platform for students, schools and self-learners, available on the web, Windows, iOS and Android.
Visit grammarindex.com- Over 300 grammar topics with definitions and worked examples
- Built-in quizzes, spelling tests and structured learning paths
- Read-aloud narrator and a multilingual edition for international learners
- Dyslexia-friendly display options and focus tools for younger learners
Who we work with
Built for businesses. Made for consumers too.
Whether you run a company that needs a bespoke system, or you're a learner, parent or teacher using one of our apps, you get the same care, straightforward advice and dependable service.
More about AlderstromFor businesses
Custom systems, ongoing product support and licensing managed across your organisation.
For consumers
Our own products, such as The Grammar Index, plus genuine software licences and helpful support without the jargon.
Ready to move your business forward?
Tell us what you need and we'll come back to you with a clear next step.