Diego Sainz Balboa

Tribex Agency is a Madrid-based AI automation agency that helps business owners streamline operations and grow revenue using AI. Most engagements start with a free AI audit of a business's operations, then move into building systems spanning AI voice agents, lead generation, and process automation. Its core offerings include outbound AI voice agents that can call hundreds of leads a day at a fraction of the cost of a human dialer, and fully personalised AI receptionists that answer calls, book appointments, and handle inquiries around the clock.

Founder Diego Sainz started his first marketing agency at 15 years old, working with gyms and real estate agencies across Spain before pivoting fully into AI automation roughly two years ago. That agency background shows up in Tribex's positioning: it leans on marketing and sales fluency as much as technical build skill, and the agency now serves clients across the United States, Australia, Taiwan, Mexico, Spain, and Italy.

Tribex's stated industries of focus are real estate, gyms, medical practices, IT companies, and marketing agencies — a mix of service businesses that rely heavily on inbound and outbound lead response. One case example the agency cites: an outbound AI voice campaign that generated over 400 calls in a single day at under $0.20 per call.

Diego also runs a YouTube channel under his own name where he shares AI automation build-outs and business-optimisation content, functioning as both an educational resource and a lead-generation channel for the agency.