AI-Powered Technology Solutions & Strategic Consulting Software Consultancy for Ambitious Businesses
Tech that feels good. Elvifi designs, builds, and ships web apps, platforms, and AI solutions - from blank canvas to production.
Built for Deadly Dozen — a global fitness competition platform
Services
Web & App Development
Custom websites, web applications, and mobile apps built for performance and scale. From marketing sites to full enterprise platforms, we handle strategy, design, architecture, and development - delivering polished products on React, Next.js, TypeScript, and modern cloud infrastructure.
Learn more →AI Solutions
Practical AI integration that solves real business problems. We build intelligent features into your products - from LLM-powered tools and automated workflows to data pipelines and custom AI applications. No hype, just measurable impact on your operations.
Learn more →Product Engineering
End-to-end product consulting for businesses that need more than a website. We design system architecture, build scalable platforms, and ship production-grade software - the same approach behind our work powering a global fitness company across 23+ countries.
Learn more →How We Work
Discovery Call
We learn your business, goals, and constraints. You get an honest assessment of what is achievable and a rough scope.
Architecture & Design
We design the system, choose the right tools, and map out the build. You approve the approach before a line of code is written.
Iterative Build
Working software within weeks, not months. Frequent demos, fast feedback cycles, and transparent progress throughout.
Launch & Evolve
Production deployment with monitoring, analytics, and 30-day support. Then we iterate based on real user data.
Portfolio
Deadly Dozen Platform
Enterprise-grade fitness competition platform managing 17,000+ athletes across multiple applications. Features real-time leaderboards, athlete analytics, performance simulators, achievement badges, and World Championship qualification tracking.
View Full Case Study →
Athlete Profile & Analytics
Race IQ Radar
Performance Simulator
Achievement Badges
Other Client Work
Gym Management App
React · TypeScript · Supabase
AI Game Directory
React · Firebase · FastAPI
Solutions Tailored to Your Needs
Choose the Right Plan for Your Business
- Custom web or app design
- Responsive design
- Scalable architecture
- Content management system
- Database integration
- API development
- Ongoing support & maintenance
- Full-scale enterprise projects
- Bespoke AI implementation
- Large-scale AI integration
- ChatGPT and LLM integration
- Machine learning solutions
- Data processing pipelines
- Full system architecture
- Ongoing support packages
- End-to-end project delivery
Client Success Stories
"Elvifi have been instrumental in transforming our gym's online presence. They built our website and their attention to detail and understanding of our business needs is impressive."
Your story could be here.
Work with us →Get in Touch
Contact Information
York, United Kingdom
0739 247 8256
info@marcuscallum.com