Thatch reports $108M Series C at $1B; Forge's record disagrees

Why it matters

Thatch's valuation rests on employers adopting ICHRAs as insurance costs rise. Its disclosed ARR growth is striking, but the missing revenue figure prevents investors from calculating the multiple behind the $1 billion price, while Forge's conflicting financing record clouds the round itself.

Chris Ellis and Adam Stevenson said they raised $108 million for Thatch, an employer health-benefits platform, at a $1 billion valuation on September 15th. The account of the financing relies on Thatch's Series C announcement and TechCrunch's report.

Forge, a private-markets database, separately lists a $130 million Series C at a $1.03 billion post-money valuation in April. That record does not reconcile with the September financing reported by Thatch and TechCrunch. The available sources do not establish whether the entries describe separate closings, use different calculations or conflict outright.

TechCrunch reported that the $108 million came from existing investors The General Partnership, Index Ventures, General Catalyst and Andreessen Horowitz. The company did not disclose a lead investor.

The reported financing followed a $40 million Series B that PitchBook valued at $410 million. Using TechCrunch's figures, the latest round marks a nearly 2.5x valuation increase and would bring Thatch's disclosed equity funding to at least $192.5 million, based on the $84.5 million total reported after the Series B.

A cancer researcher and a Stripe engineer took on benefits

Ellis and Stevenson came to insurance through healthcare and payments, the two systems Thatch must make work together.

Ellis began his career as a cancer researcher, then helped establish the US sales operation at clinical software developer SOPHiA GENETICS and worked on software products at Agilent Technologies. Stevenson spent four years at Humana, built bootstrapped software businesses on the side and later spent about seven years building and leading customer engineering teams at Stripe.

Ellis has described his move into startups as a decision to solve healthcare problems directly instead of studying them from a laboratory.

That history shaped a product whose core technical work has little to do with the AI label attached to most billion-dollar startups. Thatch has to connect payroll records, employer budgets, insurance enrollment, carrier payments, reimbursements and tax compliance. TechCrunch reports that Thatch uses AI to recommend plans based on an employee's needs. The harder commercial problem is moving money reliably through a regulated benefits system.

The product depends on rules issued in 2020

Thatch administers Individual Coverage Health Reimbursement Arrangements, known as ICHRAs. Federal regulation created ICHRAs in 2020, allowing employers to fund employees' individual insurance plans instead of enrolling everyone in one group plan.

According to TechCrunch's description of the product, employers provide workers with health budgets that can be used for individual coverage. Employees can direct remaining healthcare dollars toward eligible expenses through a Thatch debit card. Thatch handles the benefits administration and payment infrastructure behind those choices.

The model gives employers a predictable contribution instead of another annual negotiation over a company-wide plan. Employees gain a wider set of choices, although the size of the employer's allowance still determines how much coverage they can afford. A worker choosing a more expensive plan may have to pay the difference.

Ellis argues that individual purchasing also changes insurers' incentives. "If employees don't like their insurance, they can switch to another one," he told TechCrunch. The theory is that carriers must compete for each member's renewal rather than winning an employer account that bundles hundreds or thousands of workers.

Health costs are doing the customer acquisition

Thatch is raising into one of the steepest employer cost cycles in decades. Mercer's preliminary survey projects an 8.2% increase in health benefit costs per employee in 2027, the largest increase since 2003.

The baseline was already high. KFF's 2025 employer health benefits survey put the average annual cost of family coverage at $26,993, up 6% from the prior year. The average annual worker contribution for family coverage was $6,850.

Those increases make a fixed-budget product easier to sell. They also expose the central tension in the ICHRA model: a predictable employer expense can become a larger employee expense if the allowance fails to keep pace with insurance prices. Thatch's long-term test is whether its marketplace can produce enough competition and plan choice to prevent cost control from becoming cost transfer.

Thatch's platform supports employer contributions, plan shopping, benefits administration, compliance, payments, and payroll integrations, according to the company's product materials and TechCrunch. A separate company announcement said that Venteur's employers and customers would transition to Thatch's platform.

The valuation rests on self-reported growth

Ellis told TechCrunch that annual recurring revenue grew nearly sevenfold over the 12 months preceding the Series C. The company has not disclosed the underlying revenue figure or number of covered workers, leaving no public basis for calculating the revenue multiple behind the $1 billion valuation. Thatch lists a price of $45 per enrolled employee per month for employers with one to 49 eligible employees, plus a compliance fee, and custom pricing for employers with 50 or more eligible employees.

Thatch said in April 2025 that it had helped more than 1,000 companies since launching in late 2023. That historical figure does not establish its current customer count.

Thatch competes with Take Command, PeopleKeep, Remodel Health, Zorro and other ICHRA administrators. Its valuation depends on the founders converting employer demand for fixed health budgets and employee plan choice into revenue at a scale the company has yet to disclose. The conflicting Forge record also leaves the precise size and timing of the Series C unresolved.