Thatch Reaches $1 Billion Valuation With Insider-Led $108 Million Round

Thatch has raised $108 million at a $1 billion valuation, according to reporting on September 15, 2026. TechCrunch

The round came entirely from existing investors. The General Partnership, Index Ventures, General Catalyst and Andreessen Horowitz all added capital. The company designates the new financing as its Series C.

Thatch previously raised a $40 million Series B at a $410 million valuation about 17 months earlier. Ahead of the new round, the company grew annual recurring revenue, or yearly subscription income, about sevenfold.

Thatch was co-founded in 2021 by Chris Ellis and Adam Stevenson. Ellis serves as co-founder and CEO. Stevenson is a former Stripe engineering executive.

Thatch runs an individual plan marketplace for employers that uses ICHRA, or Individual Coverage Health Reimbursement Arrangement. ICHRA was created by federal regulation in 2020 and has recently been rebranded as CHOICE. In practice, it lets employers fund coverage without sponsoring a single group plan.

Each employee gets a health budget based on age, location and dependents, according to the company. Thatch Employees then shop for individual insurance in the marketplace. Remaining funds can be used elsewhere in the system.

Two product extensions surround that core flow. Thatch Market offers exclusive pricing from more than 50 partners covering mental health, weight-loss, fertility and more. Thatch Card loads funds remaining from a health budget after insurance purchase, with no reimbursement forms or waiting periods. The company states it is trusted by more than 5,000 companies.

The funding history involves the same firms. The $40 million Series B was led by Index Ventures, with General Catalyst and Andreessen Horowitz participating. Thatch Before that, Thatch raised $38 million in a Series A led by General Catalyst. MobiHealthNews

In my view, the insider-led structure and the product details belong together. All four firms already had access to operating data when they added capital, which points to confidence in what they saw. A marketplace alone is a storefront. A budget engine plus a payment card plus a curated vendor market is closer to system infrastructure for defined-contribution health benefits, where the employer sets a fixed amount rather than picking a plan. Traditional employer coverage asks a benefits team to pick plans for everyone. The ICHRA approach asks the employer to set budgets and rules, then lets employees select their own plans. That moves complexity from plan selection to eligibility logic, contribution design and money movement. Anyone who has sat with a young adult sorting through deductibles and networks will recognize the friction this model tries to remove.

Worth flagging here is the operational burden that comes with that choice. Individual market rules vary by location. Age and dependent-based contributions must be calculated correctly. Post-purchase balances must land where employees can actually spend them. Thatch is betting that software can absorb that work at scale, and its sevenfold revenue growth ahead of this round gave existing investors reason to fund that bet again. What this enables, if it works, is a benefits stack where employers control spend and employees control selection without drowning in paperwork.