Codyco Helps Hotel Groups Recover Revenue From Missed Calls With AI Reservation Agents
A new Y Combinator Fall 2025 startup is targeting one of the hospitality industry’s most quietly expensive problems: missed phone calls. Codyco, an AI hotel reservation system for hotel groups, is turning unanswered inbound calls into actual bookings – and the early numbers are striking.
The company’s pitch leads with a concrete result: €5,000 in additional bookings in just four weeks for a single 53-room hotel. For a hotel group operating dozens of properties, that math compounds quickly. Codyco’s product works by routing a hotel’s missed calls – those that hit voicemail, get dropped at peak hours, or roll past business hours – to its AI agents, which answer in natural language, walk the guest through availability and pricing, take the booking, and write it directly into the hotel’s property management system. The agents also handle the complex workflows that typically follow a guest call: booking modifications, cancellations, and invoice requests are all resolved in the same conversation, without a human ever needing to pick up.
The problem Codyco is solving is bigger than it looks. Even hotels that have invested in call centers and central reservation departments still lose roughly 5 percent of inbound calls – a figure that translates to seven-figure revenue leakage for mid-sized and large groups. Each one of those missed calls is a guest who was ready to book, who instead either picked another property or never tried again. Conventional voicemail systems and overflow centers can’t close that gap because the friction of calling back, leaving messages, or being routed through generic IVR drives drop-off. Codyco’s AI agents pick up immediately, speak the guest’s language, and complete the transaction in a single conversation. Unlike generic IVR systems, the agents are trained to handle sales conversations the way a skilled reservations agent would – managing objections, upselling room categories, downselling where needed, and adapting to common guest personas in real time.
Codyco was founded in 2025 by Stefan Schaff, Endrit Bytyqi, and Alexander Schober – a Munich-based team with deep enterprise data and AI backgrounds. Schaff previously served as Head of Data & AI at Motius from 2020 through 2025, where he led a €2 million rebuild of Siemens’ global invoice analytics platform processing 10 million invoices per month for over 1,000 users. Bytyqi, a senior tech specialist at Motius, led a Siemens supply-chain reporting platform integrating more than 100 SAP systems, and earlier rebuilt analytics pipelines at PRIME that cut machine learning runtimes from days to hours. Schober, also based in Munich, scaled a single €60K proof-of-concept into an enterprise initiative with €500K+ in signed contracts and a €1M+ pipeline at Siemens, and earlier developed anomaly detection systems for federated learning. The team’s enterprise pedigree shows in the product positioning: Codyco is sold not as a chatbot, but as reliable AI infrastructure for hotel groups that need uptime and accuracy.
That reliability angle matters. Hotel reservations are a high-stakes interaction – a missed booking is lost revenue, but a botched booking is worse. Codyco’s founders, who started the company after a friend told them how much money he was losing from missed calls, built the first version specifically to be production-grade from day one. The result is a product that hotel operations leaders can deploy without worrying about the embarrassing failure modes that have plagued earlier voice AI products.
Backed by Y Combinator partner Andrew Miklas, Codyco joins the Fall 2025 batch as part of a wave of AI startups proving that voice automation has finally crossed the threshold from novelty to revenue infrastructure. For hotel groups losing seven figures a year on the phone, an AI hotel reservation system that sells, upsells, and resolves post-booking workflows in a single call is not a nice-to-have – it is overdue.