Flex
Category: AI in Fintech
AI-native private banking platform that combines business credit, personal finance, payments, and ERP operations into a unified financial ecosystem for high-net-worth business owners Flex was founded in 2022. The company is led by Zaid Rahman. Based in San Francisco, California, United States. Team size: 51-200. Total funding raised: $105M equity + $300M debt facilities. Latest round: Series B. Key investors include Portage, CrossLink Capital, Spice Expedition, Titanium Ventures, Wellington, Companyon Ventures, Florida Funders, FirstLook Partners, Tusk Venture Partners, MS&AD Ventures, Restive, Victory Park Capital.
AMW Analysis
Flex is an AI-native private banking platform that unifies business credit, personal finance, payments, and ERP operations for high-net-worth business owners. The company has raised a total of $105 million in equity plus $300 million in debt facilities, with its latest round being a Series B. Recent news shows Flex raised a $70 million Series B1 round led by Halo Fund, specifically for AI payment tools and credit targeting mid-market enterprises. This follows a $60 million Series B round that brought total equity to $105 million, intended to scale its AI-driven finance platform for mid-sized businesses. The funding trajectory indicates a shift in focus toward the underserved mid-market segment, with the company offering AI-based underwriting, payment processing, and working capital products. The news flow demonstrates consistent investor backing and a strategic expansion from its original high-net-worth client base to serving mid-sized companies with specialized financial tools.
AMW analysis, generated from 3 tracked news signals.
- Founded
- 2022
- Headquarters
- San Francisco, California, United States
- Team size
- 51-200
- Total funding
- $105M equity + $300M debt facilities
Value proposition
All-in-one AI-native financial platform that unifies business and personal finance with AI-powered automation, replacing fragmented banking and finance tools
Products and solutions
Private Credit, Business Banking, Personal Finance, AI-Powered Payments, Expense Management, AP/AR Automation, Global Payments, Flex Elite Card
Unique value
AI-native approach built from ground up rather than added to legacy systems, combining private banking with AI agents that create a self-improving feedback loop across all financial operations
Target customer
High-net-worth business owners running companies with $3M-$100M revenue
Industries served
Cross-industry, Middle-market businesses, High-net-worth entrepreneurs
Technology advantage
Agentic underwriting system using AI-powered risk models that improve with every transaction, creating smarter risk pricing and scalable operations with stronger margins
How they differentiate
Vertically integrated AI-native platform targeting underserved middle-market segment with unified business-personal finance approach, creating data feedback loops that improve risk models and customer stickiness
Main competitors
American Express, Traditional private banks, Brex, Ramp
Key partnerships
Thread Bank (banking services), Lead Bank (credit cards), Visa (payment network)
Notable customers
Innovaquant, Betr, Mod Partners, VIP Completions
Major milestones
$60M Series B funding (Dec 2025), $200M credit facility from Victory Park Capital (Mar 2025), First FinTech to launch Visa Infinite Business Credit Card (Jul 2025), $3B payments volume milestone, 25,000+ businesses served, AI-native private banking platform launch
Growth metrics
$3B+ payments volume (3x growth in 12 months), 25,000+ businesses served, 4+ products per customer average, quadrupled revenue in 12 months
Market positioning
AI-native private bank for America's overlooked middle-market business owners who employ 40% of Americans but are underserved by traditional financial institutions
Geographic focus
United States with plans for international expansion
Patents and IP
Not publicly disclosed
About Zaid Rahman
Founder & CEO of Flex (formerly Flexbase), Thiel Fellow, Founder of 305 Ventures. Previously focused on solving cash flow problems in construction industry with Flexbase, which evolved into the broader Flex platform.
Latest news about Flex
- Flex raises $70M Series B1 for AI payment tools targeting mid-market enterprises
- Bonsai Robotics has acquired farm-ng, merging its GPS-free vision-based AI autonomy with modular electric farm robots to create integrated AI-first machines. The deal brought in heavy talent including
- AI startup Flex secured $60 million in Series B funding, bringing its total equity to $105 million. This investment will scale its AI-driven finance platform, providing comprehensive tools for mid-siz
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Official website: https://www.flex.one/
