Building a Vertically Integrated AI Stack: How Load Bearing Empire Replaced Twilio, SendGrid, and Make.com with Self-Hosted Infr

Load Bearing Empire, a six-business vertical stack spanning real estate, demolition, valet services, credit repair, mineral rights, and structural SaaS, deployed a unified AI infrastructure in March 2026 that eliminated third-party communication dependencies entirely. By consolidating 26 VAPI voice agents, a custom JARVIS Brain Router, Asterisk 18.10 PBX on Vultr, and a Supabase backend (project ID whxtjboruayowkqyjvcq) with 98 tables and 42 Edge Functions, the company achieved single-stack operational control across all divisions—moving from vendor lock-in to fully self-hosted orchestration. This article breaks down the technical architecture, migration path, and infrastructure decisions that enabled a bootstrapped AI tech company to eliminate Twilio, SendGrid, and Make.com while maintaining carrier-grade reliability across concurrent business units.