Burst, formerly known as Float, offers a post-purchase healthcare payments platform designed for retailers and direct-to-consumer wellness brands. The software keeps merchants’ existing payment stacks intact while automatically identifying Health Savings Account (HSA) and Flexible Spending Account (FSA)–eligible items once a transaction is completed. After purchase, Burst notifies shoppers of potential savings and files reimbursement claims directly with their plan administrators, streamlining an otherwise manual process. This approach helps merchants access a larger share of the billions of dollars sitting in consumer HSA/FSA balances. Led by CEO Anthony Rangel, the New York City company plans to use new capital to accelerate product development and expand partnerships with retailers, e-commerce brands, and plan administrators. To date, Burst has raised a total of $3 million, indicating early but growing investor confidence in its model.

Total raised

$2M

Funding rounds

1

Latest round

Seed

Latest activity

Mar 2026