28 million Americans with Medicaid need mental health care. Only a third of them will find it.

The math is devastating. Millions of America’s most vulnerable population are left waiting – not weeks, but months – without access to the mental health treatment they desperately need. Systemic barriers like operational complexity discourage practices from accepting Medicaid patients at all, and low reimbursement rates make them financially unattractive to most providers. This keeps care out of reach for those who need it most.

When Medicaid patients can’t find care, their treatable conditions escalate into crises. Emergency rooms become their only option. Lives that could have been transformed through early intervention instead spiral downward. This is a solvable problem.

This is where Third Space comes in.

We’re a virtual outpatient behavioral health practice built specifically for Medicaid patients. We’re on a mission to bridge this gap and rapidly increase access to care for underserved patients.

We accept most Medicaid and some commercial insurance plans. For patients, this means quality virtual therapy at no cost or very low cost – often as soon as 48 hours after reaching out.

We’ve proven there is enormous demand. Now we’re building the engine that allows us to serve that demand across states, payers, providers, and clinical services without sacrificing quality.

Some highlights

In-network with 50+ Medicaid ACOs, MCOs, and commercial health plans

We cover ~17 million lives, including over 6 million Medicaid lives (nearly 1 in 10 Medicaid enrollees nationwide)

20,000+ patient sessions delivered

200+ therapy and psychiatry providers in our network

~400 organizations have referred patients to Third Space, spanning health systems, health plans, universities, safety-net clinics, and independent providers

8x revenue growth in 2025

5-day median time to first appointment compared to the usual months-long wait

81% of Medicaid patients return for a second appointment

~70% of patients see measurable improvement in depression (PHQ-9) and anxiety (GAD-7) scores

We're not a stopgap. We're building what mental health care access in America should have always looked like.

Why work at Third Space

You'll move the needle on something that matters. Your work will directly touch millions of lives during, arguably, the most consequential moment for Medicaid in recent history.

You’ll solve problems that actually constrain access to care. Credentialing delays, payer complexity, broken workflows, and operational bottlenecks directly determine whether patients can get treated, and how soon they get into care after reaching out.

Strong PMF, scaling fast. Revenue grew 8x in 2025. We've proven the model and built the engine. Now we ned to make the operating system substantially more scalable.

Direct access and real ownership. You will work side-by-side with the founders and have genuine influence over how Third Space grows, while working with government and private stakeholders. You'll own P&L for some of the most important systems in the company.

You'll be building something that hasn’t existed before. Many of the processes you’ll ultimately manage still need to be designed, documented, automated, or rebuilt.

Humans + AI agents. Third Space is deploying AI agents across our operations. You won't just use AI tools; you'll help shape how an agentic care delivery company actually works in practice. You should be excited about figuring out what humans should own, what software should own, and how the two work together.

Backed by people who've done it before. Our investors include the former Chief Medical Officer of the US Medicaid program, founders of companies like Thirty Madison, Tennr, Jimini Health, Brellium, Altitude, Tilly Therapy, and investors in companies like Calm, Grow Therapy, BetterUp, Midi Health, and others.

Third Space is backed by Zeal Capital Partners, Actions Capital (fka K50 Ventures), RiverPark Ventures, Evio VC, and Pareto Holdings.

Join us at Third Space and help reimagine what’s possible for mental healthcare access in America – Come build America’s home page for Medicaid alongside us.