Aeliusventure

Aelius Venture has been building software since 2014, with 140+ engineers delivering custom platforms for US-based fintech, marketplace, and SaaS companies. We specialise in payment systems, real-time platforms, and AI-driven infrastructure that ship in months, not years. Recent work includes rebuilding Tridge's payment infrastructure to handle $100M+ in annual transactions with sub-second settlement; building Ministays, an Airbnb-style marketplace, from scratch to a market-ready MVP in 6 months with 50k+ listings; and delivering Voiply's carrier-grade VoIP platform at 99.95% uptime supporting 1,000+ concurrent users. Clients describe working with us as delivering on every SLA and scaling faster than they thought possible — Voiply's CTO specifically noted we hit every service-level commitment, which is rare in this industry. We're SOC2 and ISO27001 certified, based in London, and have delivered 1,000+ projects for 130+ scale-up startups. We're a strong fit if you're a fintech, marketplace, or SaaS company that needs production-grade infrastructure fast and can move quickly on scoping. We're likely not the right fit for early-stage teams still validating a concept without a clear technical spec, or for procurement processes requiring extensive multi-vendor RFP cycles.