The fintech stack, from the banks and rails underneath to the apps, markets and AI on top. 183 companies, 106 of them in more than one layer.
Agentcard
Allowance
AlphaSense
Arva AI
Autonomous
Avallon AI
Basis
Campfire
ClaimSorted
CollectWise
Copperlane
Corgi Insurance
Corlen
Daloopa
Definite
ElimentaryEvent Horizon Labs
Fazeshift
Financial Datasets
FINNY AI
Finto
Flip
Hebbia
Hickory
Kimpton
Lemonade
Norm Ai
Numeric
OffDeal
Pagaya
Puzzle
Rillet
Rogo
Saturn
Sphinx
TaxGPT
Upstart
Veritus
Zalos
Zest AI
Wealth data and reporting for advisors
Global payments platform for enterprises

Buy now, pay later

Cards that let AI agents buy things online (YC S26)

Global business accounts and payments

Bank-owned financial data access network

Wallets and spend controls for AI agents (YC X26)

Identity and fraud decisioning for banks and fintechs

Brokerage infrastructure APIs

Market intelligence and AI search

Federally chartered crypto bank and custody

Employment and income data API

AI for bank risk and compliance decisions (YC S24)

AI financial advisor (YC F25)

AI agents for insurance claims (YC X25)

AI agents for accounting firms

Open finance data in Latin America

Robo-advisor for investing and retirement

AP, AR and spend for small businesses

Rewards and credit card for rent

Mortgage and consumer lending software

Stablecoin API for global payments (YC W25)

Square, Cash App and Afterpay

Corporate cards and spend management
AI research agent for investment professionals

Stablecoin payments infrastructure

AI-native accounting ERP
AI compliance co-pilot for regulated firms (YC W25)

Cap tables, fund admin and private markets

Blockchain analytics and crypto compliance

Enterprise online payments processing
Mobile banking with no monthly fees
Issuer of the USDC stablecoin

AI claims processing for insurers (YC S24)

Cloud-native prime brokerage and clearing

USD accounts and transfers for emerging markets (YC W24)
Cyber insurance with active risk monitoring

Business data and AI for commercial banks

Crypto exchange and Base network

AI debt collection (YC F24)

Nationally chartered bank built for developers

AML screening and monitoring

Open GPU price index and compute derivatives (YC S26)

AI mortgage origination (YC W26)

AI-native insurance carrier for startups (YC S24)

AI loan origination for commercial real estate (a16z speedrun)

Tech-forward bank behind many fintech programs
Mobile banking for everyday Americans

AI-extracted fundamentals data for analysts

Market data feeds and APIs

Banking app with cash advances

Back-office agents on a live model of your books (YC F26)

Payments in emerging markets

Embedded investing infrastructure

Payments for global companies selling in Latin America

AI agents for private capital back offices (YC F26)

Crypto risk and compliance analytics
Rent reporting to build credit

Online life insurance

Social trading and investing
AI research lab for markets (YC W24)

AI agents for accounts receivable (YC S24)

Stock market data API for AI agents (YC S26)

AI prospecting for financial advisors (YC S24)

AI accounting for enterprise finance teams (YC S25)

Digital asset custody and transfer infrastructure

AI money manager over iMessage (a16z speedrun)

Payments across Africa

Securities compliance for broker-dealers and advisers (YC W24)

Debit card and money app for kids

Investing app for India
AI-native commercial insurance brokerage (YC W25)

AI research for investors and banks

Cross-border payments for exporters (YC X26)

AI for BSA and compliance teams at banks (YC F26)
Embedded card issuing and processing

Compliance investigations software

Direct bank-network access (ACH, wires, RTP) via API

Stablecoin payments and compliance for global business (YC W25)

International payments for Indian freelancers and startups (YC W24)
AI trading app (YC W26)
CFTC-regulated prediction market exchange

Stablecoin neobank for emerging markets (YC W25)

Insurance for AI companies (a16z speedrun)

Evaluation arenas and training data for financial AI (YC X26)

Direct-to-consumer home insurance
Liability insurance for AI agent mistakes (YC X26)

Buy now, pay later and shopping app

USDC neobank for Latin Americans (YC S24)

Crypto exchange

Treasury and liquidity management

Sponsor bank for fintech and embedded finance

AI-driven renters, home, car and pet insurance

Planned CFTC-regulated market for GPU compute (YC W25)

Card issuing APIs

SaaS core banking platform

Modern card issuing platform

Working capital for AI data companies (YC X26)

Infrastructure for perpetual futures on any underlying (a16z speedrun)

Banking for startups

Business identity verification (KYB)

Card issuing and payments infrastructure for African enterprises (YC W24)

Payment operations and multi-rail money movement
UK digital bank

Crypto on-ramps and payments

Financial data aggregation and open banking

European mobile bank

Travel and expense management

AI agents for legal and regulatory compliance

Cross-border and cash-flow credit data

Latin America's largest digital bank

Close automation and reporting for accounting teams

AI-native investment bank for small businesses (YC W24)

Receivables financing for service businesses (a16z speedrun)

Premium home insurance sold through agents

Price indexes and futures for trading GPU compute

Merchant of record for software companies

AI underwriting network for lenders
Trading venue with the matching engine on one chip (YC W25)

Regulated stablecoin and tokenization infrastructure

Online payments, Venmo and Braintree
Online payments for African businesses

Accounting and finance software for SMBs

Identity verification platform

Payroll connectivity for direct deposit and income

Revenue-based capital for businesses

Connects apps to bank accounts
Company cards and spend management

Prediction markets

Payments orchestration platform

Insurance for the compute economy (YC S26)
Phone-centric identity verification

Investing in stocks, bonds and options

AI accounting software for startups

24/7 exchange for global equities and commodities (YC X25)

Business banking for European SMBs

Stablecoin-powered card issuing

Corporate cards, spend management and AP

Fintech-as-a-service for global payments

Payments and banking for Indian businesses
Global financial super app

AI-native ERP and general ledger

Cross-border payments and the RLUSD stablecoin

Prime brokerage for prediction markets (YC X26)

Commission-free trading and crypto

AI analyst for investment banks and funds

Usage-based car insurance

Global dollar account for Brazilians (YC S25)

Fraud and compliance platform

AI for financial advice firms (YC S24)

Fraud prevention and AML

Low-latency execution across crypto, prediction and tokenized assets (YC W26)
Marketplace for buying and selling GPU compute

Digital fraud prevention
GPU rental price indexes and compute market data

Digital bank, loans and investing

Spend management for European companies

AI compliance agents for KYB and AML (YC F24)

Payments orchestration and card vault

Spend management for the creator economy (a16z speedrun)

Banking and credit building for young people

Marketplace for AI hardware (YC S26)
Payments and financial infrastructure for the internet

Mobile credit in emerging markets

AI tax assistant for accountants (YC S24)

Cloud-native core banking for big banks

Global payables automation

Commission-free investing app
Banking-as-a-service connecting fintechs to partner banks

Blockchain intelligence for crypto crime and compliance

Open banking payments and data in Europe

Multi-chain deposit infrastructure (YC W26)
Embedded banking platform for fintechs and software companies

Fraud and AML case management

AI lending marketplace

AI agents for consumer lenders (YC S25)

Business insurance for startups

Automated investing and cash accounts

Cross-border money transfer and multi-currency accounts

AI workers for finance departments (YC F25)

Crypto and stablecoin infrastructure for platforms

India's largest stockbroker

AI credit underwriting for lenders
Every company’s site was checked on October 26, 2026; companies that shut down or were bought outright are left out.