Zest AI provides AI-powered software that helps lenders modernize credit underwriting, automating credit decisions with reported auto-decisioning rates of 70-83% while emphasizing fairness across protected classes. Its suite spans AI-automated underwriting, application fraud detection and lending intelligence for portfolio strategy, running over 600 active models for credit unions, banks and specialty lenders. Named to CNBC's 2025 World's Top FinTech Companies, Zest AI completed an oversubscribed growth financing round at a sharply higher valuation, with investors including Citi Ventures and multiple large credit unions, to expand adoption of AI lending across the industry.
Zest AI
ActiveAI-automated credit underwriting for lenders
Total raised
$200M
1 round
Stage
Growth
Team
201-500
since 2009
Pricing
Enterprise
Founded
2009
Los Angeles, United States
Agent-ready
API
Score 40/100
AI-automated credit underwriting
70-83% auto-decisioning rates
Application fraud detection
Fair lending monitoring
Portfolio lending intelligence
600+ active credit models
Coverage for banks and credit unions
Explainable model reporting
40/100
Developing
MCP server
Public API
Webhooks
OAuth 2.0
SDKs
— Growth $200M ● Citi Ventures
Capital network
$350M raised ·5 backers·8 network links
- Backers5
- Shared portfoliocompanies these backers also fund
- Extended networkfunds that co-invest alongside them
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- What does Zest AI do?
- It automates credit underwriting for lenders using AI models.
- Who uses Zest AI?
- Banks, credit unions and specialty lenders.
- Who invested in Zest AI?
- Citi Ventures and major credit unions joined a 2025 growth round.
- Does it support fair lending?
- Yes, it monitors lending across protected classes.
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