Flex has raised $70 million in a Series B led by Halo Fund to scale its AI-native private banking platform for global business owners and to launch Flex Global, a cross-border payments product on stablecoin rails across 100+ countries.

The round values the company at roughly $1.2 billion, bringing total equity funding to $180 million and debt to $300 million.

Flex promises faster cross-border payments—minutes rather than days—by using a hidden stablecoin layer and newer rails gaining traction in the market.

Halo Fund co-founder notes the core problem: entrepreneurs’ business and personal finances are intertwined, yet banks typically treat them as separate, which Halo aims to fix by backing growth-stage tech firms.

Executives emphasize that traditional banks fragment ownership of personal and business finances, and Flex centralizes them into a single private-banking relationship.

Investors recognize risk around revenue mix, credit quality, and regulatory exposure to stablecoin rails, but point to a data-driven moat and multi-product, owner-centric platform as mitigating factors.

CEO Zaid Rahman frames the addressable market as roughly 350,000–400,000 U.S. business owners who drive 40% of payroll, and about 3 million owners globally who control 50% of the economy, signaling a large opportunity for a unified platform.

The roadmap includes personal credit, rewards cards, treasury tools, travel services, and mortgages, signaling expansion into broader consumer-like finance for business owners.

Flex positions itself as a durable, offensive move to consolidate the owner’s entire financial life, beyond point solutions.

The platform acts as an execution layer across a owner’s balance sheet with five product lines—private credit, business-finance stack, personal finance, payments, and back-office AI—tied to a single customer record to enable multiple products per owner.

Flex targets underserved global middle-market business owners who drive a large share of private-sector payroll, with top segments including construction, wholesale, and multinational firms.

Regulatory dynamics in the UK, where commercial card interchange is uncapped, positively impact Flex’s cross-border economics, with US-UK differences shaping rollout.