Location · QA Testing Company
QA Testing Company in London
London is the largest software engineering market in Europe — heavy concentration of fintech (Monzo, Revolut, Wise), B2B SaaS, and enterprise software. Buyers are typically experienced CTOs and engineering leaders who care more about delivery discipline than cost. Hashorn works as your QA testing company for teams in London and across the United Kingdom. Manual and automation QA across functional, regression, API, and release-validation surfaces.
UTC+0 gives London a full afternoon overlap with India, a half-day overlap with the UAE, and a morning overlap with the US east coast.
Local context
What the market looks like
Why our delivery model is shaped for buyers in this market.
Densest fintech engineering market in Europe; sophisticated buyer expectations around compliance, security, and audit.
Strong remote-first culture post-2020; comfortable hiring senior engineers in different time zones.
Premium on senior-only delivery, weekly cadence, and clear technical communication.
Who we work with
Typical buyers
Series A–C fintech and B2B SaaS startups in London.
Scaling product companies looking for offshore engineering, QA, and security capacity.
Agencies serving enterprise clients in the City and across the UK.
What you get
As your QA testing company
Manual and automation QA across functional, regression, API, and release-validation surfaces.
Test plan with explicit entry/exit criteria
Manual functional, regression, and exploratory testing
Automated API, smoke, and regression suites
Cross-browser and cross-device testing
Release readiness reports and defect tracking
Post-release defect monitoring and learnings
How we deliver
Our process
Senior engineers run the work. AI handles the scaffolding. Weekly demos keep things honest.
01
Audit
Review existing test coverage, flake rates, environments, and release process — and the gaps.
02
Plan
Agree the test plan — functional, regression, API, performance — and the entry/exit criteria per release.
03
Execute
Manual and automated test execution against every PR and release candidate, with traceable defects.
04
Sign-off
Release readiness reports, regression coverage maps, and post-release defect tracking.
Stack
Tools and technologies
FAQ
Questions clients ask before we start.
Building in London? Let's talk.
Tell us what you're building, we'll tell you how we'd ship it.