Flex
PrivateLast Round
Series A
Sep 2, 2025
Est. Valuation
$48.52M
Total Funding Raised
$18.2M
Momentum Score
25 /100
Company Overview
Flex, legally known as Flex Technology Co, is a financial technology company that operates a payment infrastructure platform enabling health and wellness businesses to accept Health Savings Account (HSA) and Flexible Spending Account (FSA) payments online. The company's solution integrates into a merchant's existing checkout process to handle the complexities of accepting pre-tax health funds, which includes real-time product eligibility verification against IRS guidelines, processing split-tender transactions for carts with both eligible and non-eligible items, and issuing Letters of Medical Necessity (LMNs) through an integrated telehealth service. By simplifying this process, Flex helps merchants capture a share of the ~$150 billion annual HSA/FSA market, aiming to increase their average order value and checkout conversion rates. The company was part of Y Combinator's Summer 2023 batch and has since secured Series A funding.
Sector
FinTech
Verticals
Digital Payments, Vertical SaaS, Compliance, Telemedicine
Business Model
B2B2C
Customer Profile
Payment Processing Fee, Marketplace Commission, Subscription SaaS
AI Layer
Non-AI
Keywords
Historical Pricing
Historical view of private secondary pricing and transaction trends.
Flex Comps
Public and private peers based on sector, stage, and business model.
Flex Funding Rounds
Historical fundraising activity
| Round | Date | Amount Raised | Valuation | Investors | Sources |
|---|---|---|---|---|---|
| Series A | Sep 2, 2025 | ||||
| Seed | Sep 4, 2024 |
Flex Investors
Notable investors and investment history
| Investor | Rounds |
|---|---|
| SV Angel | Seed, Series A |
| Rethink Impact | Series A |
| Precursor Ventures | Seed, Series A |
| First Round Capital | Series A |
| Y Combinator | Seed, Series A |
| Liquid 2 Ventures | Seed, Series A |
| Core Innovation Capital | Series A |
Market signals
Structured signals derived from secondary market and firmographic data.
- Dec 9, 2025
Partnered with Ladder for strength training HSA/FSA eligibility.
- Sep 2, 2025
$15M round raised
Flex Filings
SEC and related filings with document metadata.
| Typed | Date | Amount Offered | Amount Sold | Filling | Pages | Download |
|---|---|---|---|---|---|---|
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Frequently Asked Questions
Common questions about Flex's valuation, stock price, and market status.
