About the lab
Tertium Labs Ltd is a software design and development studio registered at City Walk, London SE1. We combine research habits with engineering discipline to build mobile apps and websites.
A lab, not a factory
A factory optimises for output. A lab optimises for learning, then produces with confidence once it knows what works. We are deliberately the second kind: curious at the start of a project, rigorous in the middle, conservative at release.
That means we ask a lot of questions early, prototype before we commit, and treat a disproved assumption as a useful result rather than a setback.
Principles
Evidence over opinion
Including ours. Design decisions record the observation, test or guideline behind them.
Question the framing
Before choosing between two options, check whether they are the only two.
Small, reversible steps
Work is sliced so that any step can be undone cheaply if the evidence turns.
Everything is yours
Code, designs, accounts and documentation are held in your name from the outset.
Accessible by construction
WCAG 2.2 AA is a design input, not an end-of-project audit.
Candour
Uncertainty, risk and slippage are reported as soon as we see them.
Practicalities
We work mainly remotely, with in-person sessions where they add value. Our registered address in London SE1 is for correspondence; visits are by prior arrangement only.
Hours: Monday to Friday, 09:00–18:00, London time.