Marble Health

The mental health company schools actually use

It is a Tuesday in a public school somewhere, and a counselor with 385 students on her roster notices one of them is unraveling. A year ago, that observation went nowhere useful - a referral list, a waitlist, a shrug. Today she opens Marble Health, makes a referral, and within about four days the student is in a session with a licensed therapist. Nobody asked the district for money. Insurance handled the bill.

Marble Health is a New York company building a school-centered model of youth mental health care. It is, in the most literal sense, an on-ramp: a way to get a kid from "someone noticed" to "someone is helping" without the system swallowing them first. The company offers individual, family, and group teletherapy for students in grades 5 through 12, plus a therapist EHR and AI documentation tools that quietly do the paperwork clinicians hate. It has run more than 15,000 sessions. In October 2025 it raised a $15.5 million Series A. None of that is the interesting part.

The interesting part is what Marble decided not to do.

Everyone agrees kids need help. The wiring is the issue.

The numbers are grim in the way that stops being shocking once you have read them enough times. The CDC reports that roughly 1 in 10 American teens attempts suicide in a given year. School counselors carry caseloads that average around 385 students each - a ratio that turns "early intervention" into a cruel joke. And the safety net that is supposed to catch low-income kids, Medicaid, often comes with waitlists measured in months, sometimes longer.

So the demand is not the problem. The will is not the problem. The plumbing is the problem. Most school-based mental health startups tried to fix it by selling teletherapy contracts directly to school districts - which sounds sensible until you remember that district mental health budgets are small, political, and tend to evaporate the moment a fiscal year gets tight.

Marble looked at that bottleneck and made a slightly heretical decision: stop asking schools to pay at all.

Two people who had already built the grown-up version

Jake Sussman and Dan Ross were co-founders of Headway, one of the largest mental health networks in the United States - the company that made it dramatically easier for adults to find a therapist who takes their insurance. They had, in other words, already solved a version of this problem once. For grown-ups.

Then Sussman did something a little un-startup. He left Headway and taught fifth-grade English in Brooklyn. It is the kind of detour that founders usually edit out of the official story, except this one is the whole point: standing in a classroom, he watched the youth mental health crisis up close and saw that the adult playbook would not transfer cleanly. Kids do not book their own therapy. The point of leverage was not the patient. It was the school counselor - the one adult with both eyes on the student and the authority to refer.

The bet was structural. Build the company around the counselor's referral authority and bill the care to insurance - including Medicaid - so the school's budget never enters the conversation. Investors who had watched the founders do this before were persuaded. The seed round, around $5 million, came from Khosla Ventures, Town Hall Ventures, IA Ventures and others. That was the easy part. The model still had to actually pay for itself.

How "no waitlist" becomes a sustainable business

Here is the trick most people miss. Individual teletherapy is good but expensive to scale - one clinician, one student, one hour. Marble leaned hard into group therapy, the part of the system that quietly makes the economics work without compromising care. Research has long held that group therapy can be as effective as individual therapy for many conditions. And online, you can match groups with a precision that an in-person school program never could - a session of 17-year-old girls navigating anxiety and LGBTQ+ identity, for instance, drawn from across a whole region rather than whoever happened to walk into one counselor's office.

The math is unsentimental and that is exactly why it works. Medicaid reimburses at least roughly $20 per child per session. Put ten students in a group and a single clinician hour generates around $200 - enough to pay therapists competitively and keep the lights on. Marble wraps it all in a collaborative care model that keeps counselors and parents on the team, and a purpose-built therapist EHR with AI documentation tools that strip out the administrative drag that drives clinicians out of Medicaid networks in the first place.

Where Marble bends the lines that matter

Skeptics are right to ask: does removing the school budget actually change anything a family feels? The two numbers worth staring at are time-to-care and cost-to-school. Both are where the old system fails, and both are where Marble's design does its quiet work.

The customers are students in grades 5-12 and their families, reached entirely through the people already watching them: school counselors. The investors backing the thesis - Costanoa, Khosla, Town Hall, IA Ventures - are not strangers to healthcare or to these founders. Competitors like Hazel Health, Daybreak and Cartwheel are chasing the same crisis from the district-contract side. Marble's wager is that the counselor-and-insurance route bends further before it breaks.

Affordable care for every kid in America

Marble's stated mission is plain enough to fit on the homepage: make affordable mental health care accessible for every kid in America. The phrase "every kid" is doing a lot of work. It is the difference between a wellness app for families who already know how to find help, and an infrastructure layer for the ones who don't - the marginalized, the multilingual households, the students whose only mental health resource is a counselor stretched across hundreds of names.

That is why the boring parts - the EHR, the Medicaid billing, the group-matching logic - matter more than they look. Access is not an inspirational poster. It is a supply chain. Marble is betting that if you fix the plumbing, the compassion everyone already feels finally has somewhere to go.

Back to that Tuesday

Return to the counselor with 385 students. The kid who was unraveling. In the old version of that scene, her noticing is where the story ends - filed under "referred," lost to a waitlist, remembered only if something goes wrong.

In Marble's version, her noticing is where the story starts. The referral goes in. The insurance clears. A licensed therapist is on screen within days, and the counselor stays on the care team instead of waving goodbye at the door. Multiply that by 15,000 sessions, then imagine it national - which is exactly what the $15.5 million is for.

None of this requires a new miracle drug or a viral app. It required someone willing to look at a broken supply chain and rebuild it around the people already paying attention. Marble Health did the unglamorous thing. For a kid who would otherwise have waited months, unglamorous is the whole point.