SuperDial just raised $25 million in a Series A, and if you’re still thinking of this as a glorified robocaller, you’re about five beats behind the drop. Led by SignalFire, marking one of the first investments from their shiny new $1B applied AI fund, this round brings in the deep bench of Slow Ventures, BoxGroup, and Scrub Capital, along with $3M in venture debt earmarked for go-to-market fuel and R&D fire.
What started as SuperBill, a healthcare billing company pushing paper through a fax-addicted industry, has morphed into a full-stack voice AI juggernaut. Founders Sam Schwager and Harrison Caruthers, who met while studying computer science at Stanford, were just trying to make billing less of a soul-crushing grind. Instead, they built an AI agent that could handle insurer phone calls better than most humans, and didn’t need PTO or coffee breaks. Now that little tool is doing over a million calls, heading toward 10 million by year-end.
We’re talking about automating benefits verification, prior authorization, claims follow-up, credentialing, and provider enrollment, calls that used to eat hours and morale like a black hole. Their customers are seeing 3x cost savings and 4x productivity boosts. West Coast Dental alone cleared a 70,000-claim backlog and avoided hiring five humans. And when the AI can’t finish the job, SuperDial’s internal call center steps in, turning every failed call into a learning moment. That’s not fallback, that’s feedback at scale.
This isn’t just voice AI, it’s voice AI that actually works in the chaos of American healthcare. HIPAA compliant. SOC 2 Type 2 certified. Integrated with EHRs like DrChrono, Healthie, Open Dental, and Tellescope. Throw in Cartesia’s advanced text-to-speech tech, and you’ve got natural, context-aware conversations that sound more like your billing manager and less like a broken GPS.
Let’s not forget the strategic play: acquiring MajorBoost in early 2025 wasn’t just about adding muscle, it quadrupled revenue and brought in tech that handles the messy underbelly of insurer workflows.
So what’s next? SuperDial’s not just dialing out, they’re dialing in to a future where payers, providers, pharmacies, and labs talk to each other agent-to-agent, system-to-system. And if you’re in the $150B revenue cycle management game, or even circling the $1.2T administrative spend, you might want to take that call.
