Take Advantage of Opportunity.

Old Reliable Tech is a team of problem solvers and software developers based in Oxford, Cambridge, and London, UK.

We help organisations use custom software to get a competitive edge.

Our technology powers industries from climate change mitigation to cyber security.

We have a strong preference for projects with positive social impact.


Trusted By

Satellite Applications Catapult Logo
Risk Ledger Logo
Satellite Applications Catapult Scottish Centre of Excellence Logo


What we do

We build quality custom software and train your developers. Our specialities are back-end web development, data processing , and software automation.


We rapidly build proofs-of-concept, prototypes, or minimum viable products.

Fearlessly explore new ideas.


We develop and maintain existing software systems.

We eliminate bad technical debt so your team can work efficiently.


We use peer review and mentoring to train your developers on the job.

Your team becomes stronger as our knowledge is transferred.

Why us

How we help

Work with us if you want to...

Create with purpose

Relentless prioritisation and business focus. That's the secret to effective software development.

Our team learns and internalises the goals of your organisation so we can work out how best to help.

We build exactly what you need and nothing more.

Develop an edge

Build a tool to automate repetitive manual tasks. Free up your team's time so they can focus on important work.

Build a product. Create a new scalable revenue stream.

Build a stronger team. Train your talent to become more productive and more creative.

Get what you pay for

Engineering is not a commodity. We prove this to our clients every day.

Quality is not cheap. But it pays dividends for a lifetime.

We use cutting edge tooling and a lightweight management process to deliver maximum efficiency. We'll show you how to do the same.


Happy clients

This is what it's like to work with us.

  • Thank you for your outstanding work. We really appreciated your methodology and collaboration approach, and I personally feel that Old Reliable really benefited the project.
    Federica Moscato
    Federica Moscato
    Software Engineering Manager, Satellite Applications Catapult
  • Old Reliable came on board to increase our development capacity at a critical time for Risk Ledger. They rapidly developed a proof-of-concept natural language processing tool, then developed it into a cloud micro-service which integrated easily into our existing system. Our clients have been screaming for this tool - now we're using it to make their lives easier. A massive value-add for them and us!
    Haydn Brooks
    Haydn Brooks
    CEO, Risk Ledger
  • We are particularly impressed with the high-level of technical competence - this deep technical knowledge has sped up our development sprint, which has contributed to an overall lower development cost and a superior quality final product.
    Peter Laughton
    Peter Laughton
    Director, Eebz Ltd
  • Old Reliable Tech's expertise on Open Source developments and tools enabled a fast and successful implementation.
    Dr Stephan Siemen
    Dr Stephan Siemen
    Head of Development Section, Forecast Department, ECMWF
  • The project execution from R&D to the final service implementation has been exemplary. The hand-off was smooth and has allowed for an easy integration into our cloud infrastructure!
    Bruno Calogero
    Bruno Calogero
    Fullstack Software Engineer, Risk Ledger


Lets get started

We'll turn your company into a digital powerhouse.

Send us an email if you prefer.