Kastle
AI agents for mortgage servicing
Kastle operates in b2b based in San Francisco, CA, USA, founded in 1972.
Profile
Kastle is an AI voice agent for mortgage servicing. We help servicers collect payments, verify new borrowers, and qualify new loan inquiries over the phone.
Rishi and Nitish met at UIUC where they graduated with degrees in systems engineering and computer science. Rishi was the founding Product Manager for Redfin’s Mortgage Marketplace at 22 and grew the business from $3M to $6M in revenue in 9 months. Nitish patented Verkada’s motion search system and was the youngest tech lead at the company at 23.
While building Redfin's Mortgage Marketplace Rishi realized traditional lenders didn't have the infrastructure to service online inquiries and were losing customers. Nitish and Rishi are building Kastle to help traditional financial services companies better interface with their customers.
Its activity falls under b2b; the profile below is assembled from public directory data.
San Francisco, CA, USA is where the company is located.
The company is listed at the Summer 2024 stage of development.
Its team size is recorded as 10 employees.
Public records show total funding of about $5K.
Directory analysis
Kastle is an AI voice agent designed for mortgage servicing, enabling servicers to collect payments, verify new borrowers, and qualify loan inquiries via phone interactions. The company was founded in 1972 and is headquartered in San Francisco, CA, with a small team of 10 employees. Kastle leverages the founders' experience from Redfin and Verkada to address gaps in traditional lenders’ online customer service infrastructure.
Positioning: Kastle operates in the B2B mortgage technology space, targeting traditional financial institutions that need automated voice solutions for loan servicing. Its early-stage funding and focused product scope position it as a niche player within the broader fintech ecosystem.
Note: Kastle offers AI-driven voice interactions for mortgage servicers.
Auto-generated directory analysis from public data · updated 12 Oct 2026. Informational only, not investment advice.
| Sector | B2B |
|---|---|
| Headquarters | San Francisco, CA, USA |
| Country | USA |
| Founded | 1972 |
| Employees | 10 |
| Stage | Summer 2024 |
| Total funding | $500,000 |
Website: kastle.ai
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