ZestCash

About ZestCash

ZestCash, founded in 2009 as ZestFinance by Douglas Merrill and executives from CapitalOne and Google, aimed to revolutionize credit underwriting by utilizing advanced data science. Merrill, a former CIO at Google and holder of a Ph.D. in cognitive science from Princeton, was inspired to start the company after seeing friends and family struggle to get emergency cash. He sought to apply Google's mathematical approach to data analysis to the credit decisioning process.

Initially, ZestCash operated as a direct lender with the mission of making fair and transparent credit available to everyone, particularly targeting the 60 million Americans without access to traditional credit. The core of the business was to analyze vast amounts of non-traditional data to assess credit risk more accurately than conventional methods like FICO scores. The company's thesis was that all data, when analyzed correctly, could be credit data, allowing for better risk modeling and pricing for 'thin-file' and 'no-file' borrowers.

In 2019, marking its tenth anniversary, the company underwent a significant strategic shift, rebranding from ZestFinance to Zest AI. This change reflected its evolution from a direct lender to a B2B software-as-a-service (SaaS) provider. Zest AI now licenses its AI-powered software to financial institutions, including banks and credit unions, to help them make more accurate and equitable lending decisions. The Zest Automated Machine Learning (ZAML) software enables lenders to build, deploy, and manage their own AI-based credit underwriting models that are explainable and compliant with regulations. Revenue is generated by providing this enterprise software to clients across various credit categories such as mortgages, auto loans, and personal loans.

The platform helps lenders increase loan approval rates without adding risk and reduce charge-offs by leveraging machine learning to gain deeper insights from more data. A key feature is its Fairness Kit, which uses adversarial de-biasing techniques to make lending more equitable. By automating the documentation and validation of model builds, the software helps clients with compliance. Recent innovations include LuLu, a generative AI lending intelligence companion, and Zest Protect for AI-based fraud detection.