Criztec is now Zorinto. Same team, new name.Learn more →
UK Software Development Company • Custom Software • SaaS • Cloud & AI
We build custom & bespoke software, SaaS products, enterprise systems and automation for UK SMEs and mid-market teams — production-ready, maintainable, and delivered. (We build high-performance websites too.)
What we build
Custom software, SaaS & product engineering, cloud/DevOps/data & AI, and workflow automation for UK SMEs and mid-market teams — plus high-performance websites and growth marketing.
Most popularTailored business applications, internal tools and line-of-business systems built with Laravel, Django or Ruby on Rails — from MVPs to long-term enterprise platforms.
Cloud migration, DevOps pipelines and n8n workflow automation — remove manual, error-prone work and ship reliably.
Reporting and analytics with Apache Superset and ETL — dashboards, KPIs, and data pipelines you can rely on.
Fast, SEO-optimised websites with Astro or WordPress, and high-performance WordPress→Astro migrations your team can edit with confidence.
Technical SEO, content, and local search that turn your platform into pipeline — measured in enquiries, not vanity metrics.
Professional logo design and brand identity systems that look great across digital and print.
Real results from real partnerships
Case studies
From high-performance marketing sites to full SaaS platforms — see what we've built for clients across the UK.
Custom Software DevelopmentDonation Management System (DMS)
We built Insyte for CFP Lottery & Raffles: a Django platform that ingests scanned donation forms, extracts them with Document AI, routes them through human QA, processes payments, reconciles banking and generates thank-you letters — with a read-only portal for the charities it serves.
Custom Software DevelopmentCharity SaaS Portal
We built the With Thanks portal: a charity platform that automatically produces personalised thank-you videos for donors, delivers them by email, and measures opens, clicks, plays and watch-time — with a Blackbaud CRM sync that turns new gifts into thank-yous on autopilot.
Custom Software DevelopmentMulti-Tenant SaaS Platform
We designed and built Ofyse, a multi-tenant SaaS platform that replaces the spreadsheet stack coworking operators rely on — unifying bookings, member CRM, recurring billing with regional tax, and multi-gateway payments behind one fast, modern workspace.
Free Tool · No Signup
Meta tags, headings, Core Web Vitals, crawlability, and more — graded by our in-house tool. We'll tell you what's hurting your rankings before you talk to anyone.
Why Choose Us
We're more than just a tech company — we're your strategic partner committed to driving real results.
We bridge the gap between your brand and audience with seamless technology integrations that connect systems and visions alike.
From visionary concepts to pixel-perfect execution, we craft bespoke digital experiences that elevate your brand and engage your audience.
We ignite your business potential with strategic insights and cutting-edge technology, propelling you toward exponential growth.
Google reviews
Verified 5-star reviews from our Google Business Profile. Square brackets mark our previous trading name, Criztec Technologies.
" A great experience working with [Zorinto] on our new website. We struggled with our previous web developers, but the team at [Zorinto] listened to our needs and modernised our website. Beyond happy! Our team and clients love the new website and functionality. A nice modern approach and amazing results! "
Gaurav Shukla
Local Guide · Google review · 9 months ago
" Great service and support throughout the journey. Great effort. "
arunkumar RP
Google review · 4 months ago
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