Acquisition positions Clarus among the leaders in conversational AI across the ambulatory, home health, and MSO segments
NASHVILLE, Tenn. — June 18, 2026 — Clarus, a call management and patient engagement platform for growing healthcare organizations and a subsidiary of Graham Holdings (NYSE: GHC), today announced the acquisition of Flowline Health, a leading provider of conversational AI and patient engagement.
Combined with Clarus’ 10+ years of experience and over 60 million patient interactions, Flowline’s expertise uniquely positions Clarus to help healthcare organizations deliver a higher level of care, make staff and providers more productive, and capture revenue they’re losing today.
Clarus is proud to offer a suite of leading products in this space, backed by a decade of knowing what actually happens when patients call. Clarus handles more than 14 million patient calls a year for medical practices and health systems nationwide, and the addition of Flowline extends that platform with conversational AI across both voice and text.
Most healthcare organizations are adopting conversational AI for the first time, and what sets the combined company apart is the ability to make it produce real results. Flowline’s technology, paired with Clarus’ scale and experience, gives healthcare organizations a path to deploy conversational AI and see real outcomes quickly, not just run another pilot.
The combined platform meets patients on the channels they use, by phone and by text, and works across both inbound and outbound. Clarus answers the inbound calls and messages that keep a practice running, while Flowline strengthens engagement on both sides, reaching patients proactively to confirm appointments, close care gaps, and follow up on the outreach that too often falls to overextended staff. The result is one platform built for the full range of patient communication, rather than a patchwork of point solutions.
The acquisition reinforces Clarus’ commitment to the ambulatory, home health, and MSO segments, where conversational AI can help close persistent gaps in patient communication: missed follow-ups, unanswered calls, and manual outreach that pulls staff away from patient care.
“Gabe and I started Flowline because we believed conversational AI would become foundational to the future of healthcare operations,” said Andrew Bull, co-founder of Flowline Health. “Deploying our solutions in the real world has been tremendously rewarding. Joining Clarus, a leading platform already handling millions of patient interactions a year, lets us put our technology to work for practices at a real scale, and do what we always dreamed of: help patients and providers every day.”
“Clarus and Flowline have always been chasing the same thing: ensuring patients have world-class access to care, and providers can run sustainable businesses,” said Gabe Mamallo, co-founder of Flowline Health. “Coming together lets us serve patients and providers, across voice and text, in a way neither of us could alone. I’m excited about what we’re going to build for the practices and patients who count on us.”
Clarus and Flowline will share more about the combined product roadmap in the coming months.
About Clarus
Clarus is a call management and patient engagement platform for growing healthcare organizations, handling more than 14 million patient calls a year for practices and health systems nationwide, built on 10+ years of experience and over 60 million patient interactions. Clarus is a subsidiary of Graham Holdings (NYSE: GHC). Learn more at claruscare.com.
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