Flex
PrivateLast Round
Series A
Sep 2, 2025
Est. Valuation
$48.52M
Total Funding Raised
$18.2M
Momentum
Top 25%
of companies Caplight tracks
Company Overview
Flex operates in FinTech and is based in San Francisco, California. Its latest recorded funding round was a Series A round in September 2025.
Flex is a fintech company that provides a payment infrastructure platform enabling health and wellness businesses to accept Health Savings Account (HSA) and Flexible Spending Account (FSA) payments online.
Sector
FinTech
Verticals
Digital Payments, E-commerce, Compliance, Telemedicine
Business Model
B2B2C
Customer Profile
Payment Processing Fee, Marketplace Commission, Subscription SaaS
AI Layer
Non-AI
Historical Pricing
Historical view of private secondary pricing and transaction trends.
Flex Comparables
Compare Flex with similar companies based on industry and business-model similarity.
| Company | Similarity | Market Cap |
|---|---|---|
| TrueMed | 92% | |
| Sika Health | 86% | |
| Gale | 83% |
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Flex Funding Rounds
Historical fundraising activity
| Round | Date | Amount Raised | Valuation | Investors | Sources |
|---|---|---|---|---|---|
| Series A | Sep 2, 2025 | ||||
| Seed | Sep 4, 2024 |
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Key People
Founding team and executive leadership
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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 |
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Market signals
Structured signals derived from secondary market and firmographic data.
- Jul 30, 2026
Grew 18% QoQ, from 44 to 52 employees.
- Jul 24, 2026
Monthly visitors increased 41% MoM.
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Recent news
Latest coverage and updates
- partners_withAug 18, 2026
Flex partners with Evo Hotel to let eligible customers use HSA/FSA funds at online checkout and in retail stores for qualifying outdoor purchases, including select bikes and footwear, in California on Aug 18th '26.
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Flex Filings
Explore SEC and related filing metadata, where available.
| Type | Date | Amount Offered | Amount Sold | Filing | Pages | Download |
|---|
Filing documents are not displayed on this public page. Request access to learn about available coverage.
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Frequently Asked Questions
Common questions about Flex's valuation, stock price, and market status.
Is Flex a public or private company?
Flex is a private company.
What is the current stock price of Flex?
Flex is a private company, so its shares have no public market price. Caplight tracks Flex's secondary market activity and provides MarketPrice™ estimates of its share price to Caplight users.
How much is Flex worth (valuation)?
Flex's valuation is estimated at $48.5M based on funding round data.
Can I buy Flex stock?
Flex shares may be available on secondary markets subject to transfer restrictions. Caplight facilitates secondary market transactions for accredited investors.
When was Flex's last funding round?
Flex's most recent funding round was Series A on September 2, 2025.
Who are the main investors in Flex?
Key investors in Flex include First Round Capital, Core Innovation Capital.
Will Flex IPO soon?
No public IPO plans have been announced for Flex.
How can I track Flex secondary market activity?
Caplight tracks bids, offers, and trades in Flex's shares on secondary markets.