Affirm, founded in 2012, has raised more than 1.5 billion before going public. Its largest round was a 300 million Series F in 2019 at a 2.9 billion valuation. The San Francisco based company provides buy now pay later financing for consumers and merchants through transparent installment products. Affirm integrates APIs for underwriting, checkout, repayment, and merchant analytics. Funding strengthened credit modeling, product expansion, and merchant growth. Today the company continues scaling global partnerships and financial products.