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Flex

Flex

Private
San Francisco, CaliforniaFinTechhttps://www.withflex.com/

Last Round

Series A

Sep 2, 2025

Est. Valuation

$48.52M

Total Funding Raised

$18.2M

Momentum

Top 10%

of companies Caplight tracks

Company Overview

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

Keywords

HSA/FSA paymentspayment infrastructurepayment APIhealth spending accountspayment gatewaycompliance verificatione-commerce paymentsletter of medical necessityLMNHSA marketplaceFSA storepayment railsShopify integrationhosted checkoutsplit-card transactions

Historical Pricing

Historical view of private secondary pricing and transaction trends.

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Caplight Momentum Score

Proprietary index based on bid/ask volume and sentiment.

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Flex Comparables

Compare Flex with similar companies based on industry and business-model similarity.

Flex comparables — related companies by embedding similarity
CompanySimilarityMarket Cap
TrueMed
92%
Sika Health
86%
Gale
83%

Flex Funding Rounds

Historical fundraising activity

Data table
RoundDateAmount RaisedValuationInvestorsSources
Series ASep 2, 2025
SeedSep 4, 2024

Key People

Founding team and executive leadership

Miguel Toledo

Co-Founder & CTO

Founding Team

Sam OKeefe

Co-Founder & CEO

Founding Team

Flex Investors

Notable investors and investment history

Flex investors
InvestorRounds
SV AngelSeed, Series A
Rethink ImpactSeries A
Precursor VenturesSeed, Series A
First Round CapitalSeries A
Y CombinatorSeed, Series A
Liquid 2 VenturesSeed, Series A
Core Innovation CapitalSeries A

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.

Recent news

Latest coverage and updates

  • partners_withAug 18, 2026

    Flex partnered with Evo Hotel on Aug 18th '26.

  • signs_new_clientJul 27, 2026

    Flex signs new client The Pause Life.

  • launchesJul 8, 2026

    Flex launched Flex Shopify Marketing App. on Jul 8th '26.

Flex Filings

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Flex filings preview — column headings only; records require access
TypeDateAmount OfferedAmount SoldFilingPagesDownload

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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 with no public stock price. No recent secondary market data is available.

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. Visit https://www.caplight.com to learn more.

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 for private companies. Visit https://www.caplight.com to monitor Flex's secondary market activity and sign up for updates.

Firmographic Details

HeadquartersSan Francisco, California
Employee Range35
Year Founded2023
Last FundingSep 2, 2025

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