Affiniti Raises $17M to Transform Small Business Expense Management
Looking for the best expense management software for small businesses? Affiniti is emerging as a top choice in 2025, offering cutting-edge fintech solutions designed specifically for Main Street SMBs. With its latest $17 million Series A funding—led by prominent VC firm SignalFire—Affiniti is rapidly positioning itself as a powerful alternative to traditional credit providers like American Express and Capital One. The startup’s goal? To bring advanced, intelligent expense management to industries like HVAC, pharmacies, and auto dealerships that have long been underserved by modern financial tools.
Founded by 20-year-old Aaron Bai and 22-year-old Sahil Phadnis, Affiniti stands out by offering what Bai calls “v3” of fintech. If v1 represents legacy banks and v2 introduced sleek UX and better data access via Brex or Ramp, then v3 takes it a step further: real-time financial insights, analytics, and actionable advice tailored to SMBs—most of which lack dedicated finance teams. This evolution in small business finance technology helps owners make smarter decisions, optimize cash flow, and reduce overhead.
Affiniti’s platform includes AI-powered expense tracking, customizable credit cards, bill pay automation, and deep integrations with popular enterprise resource planning (ERP) and point-of-sale (POS) systems. These features make it more than just another corporate card; it’s a financial intelligence platform designed to scale with your business. As more small and medium-sized businesses (SMBs) seek digital transformation and cost-efficiency, Affiniti is filling a critical gap with high-ROI financial solutions.
The recent funding round, coming just six months after their $11 million seed raise, signals strong investor confidence in Affiniti’s mission to disrupt the $500 billion SMB financial services market. With venture capital backing from SignalFire and a product roadmap that includes banking and cash flow forecasting, Affiniti is well on its way to becoming a staple in the small business fintech space.
For small business owners looking to simplify operations and maximize profitability, Affiniti offers a compelling and forward-thinking alternative. As fintech trends continue to evolve, expect to hear more from startups like Affiniti that blend high-performance software, AI-driven analytics, and easy-to-use financial tools built with business owners in mind.
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