K
Kastle
AI workforce agents for consumer lending and banking operations
About Kastle
Kastle is a San Francisco Y Combinator (S24) company building an AI workforce for financial services, starting with consumer lending and mortgage servicing. Co-founded by CEO Rishi Choudhary (ex-Redfin Mortgage Marketplace founding PM) and CTO Nitish Poddar (ex-Verkada), Kastle deploys specialized voice and SMS agents that execute high-volume work across lenders’ existing core systems—collections, payment inquiries, borrower qualification and servicing—without a multi-year core replacement. Agents are trained for FDCPA, TILA, RESPA and TCPA compliance and have processed more than $1.8–2 billion in transactions for large banks and enterprises. In September 2026 Kastle raised a $24 million Series A led by Insight Partners, with Y Combinator, Commerce Ventures, Fifth Wall and financial-services operators participating, to expand engineering, product and go-to-market. Sources: PR Newswire 17 Sep 2026.
Source: Dealroom company dataKnowledge graph
News
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Funding history
Company financing events and reported valuations.
| Deal type | Date | Amount | Valuation | Investors | Source |
|---|---|---|---|---|---|
| SERIES A✓Equity / VC | Sep 2026 | $24M | $144M | Insight Partners · Commerce Ventures · Fifth Wall Ventures · Y Combinator | ↗ |
| SEED✓Equity / VC | Aug 2024 | $125K | $750K | Y Combinator | — |
Growth signals
Latest recorded traffic for Kastle is 13K monthly website visits, up 18.2% over the last three months. Kastle's team grew 850% over the past year.
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Investments and acquisitions
Recent portfolio relationships for companies that also act as investors or acquirers.
Kastle in the San Francisco ecosystem
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Investors
From Dealroom's funding and investor records, grouped by the round each investor first entered.
Seed1 investor entered at this stage
Series A3 investors entered at this stage
Insight Partners
Commerce Ventures
Fifth Wall Ventures
Source: Dealroom Talent Intelligence.
Global footprint
team presence
Market sentiment
An AI-synthesised read of the highest-engagement posts about Kastle on X, ranked by likes and reposts, corporate channels excluded.
Reading the room on X — pulling top posts and synthesizing themes…
Source: X recent search ranked by engagement (likes + retweets) · Synthesis by Claude · Cached for 1 hour
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