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AI agents

Kastle

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 a

sources
1
Evidence entries preserved.
affiliations
1
Y Combinator
competitors
6
Mapped from High Signal graph features.
status
generated
D1 lookup
last updated
2026-07-15
16:41 UTC
source evidence
Why this company exists here

Y Combinator

yc-company-directory #2808

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 a

source
generated read
High Signal interpretation

Kastle is classified as AI agents from source descriptions and fund-directory context. Similar companies below are ranked from offline product facets and meaningful description overlap; category and source affiliation can only strengthen an existing product match. For lookup-created rows, the profile starts as pending enrichment until deeper source collection runs.

offline extraction
Product facets
systems engineeringcomputer scienceVerkada’s motion search systemVerkadamotion search system
mapping method
Similarity graph

Local clusters rerank extracted product concepts and description terms. The generated graph remains the fallback for sparse descriptions: offline reciprocal product-similarity graph: extracted concepts + description terms + bounded category/affiliation boosts. Minimum fallback score: 0; max competitors: 6.

discovery cluster

Companies similar to Kastle

AI agents · 6 peers

A deterministic local cluster built from offline product facets and meaningful description terms. Category and selected-institution affiliation provide bounded tie-breaks. Open any peer to continue exploring its cluster.

Seals AI

match 75

Seals is a suite of AI Employees for Wholesalers & Distributors. Instead of relying on humans to quote, take orders, collect payments, place purchase orders and enter data into ERPs. We build AI Employees that do these manual repetitive tasks for the 700k wholesalers in the US. We’re a team of three Computer Science majors, and Fernando launched and grew AT&T in Mexico to $120M ARR. Previously, we all worked together at our last YC-backed startup, building it to over $6M in revenue. It was there

shared product terms: collect, payment, over, computer; shared product theme: finance and payments, sales and marketing; shared affiliation: Y Combinator

Make School

match 61

Make School is redesigning college for the 21st century. Our bachelor's degree program combines liberal arts, computer science theory, software development, and character development with an emphasis on preparing students for successful careers as software engineers, product managers, or entrepreneurs. Our alumni work at Facebook, Google, Apple, Snapchat, LinkedIn, Lyft and more. Our college is accessible to students of all backgrounds, 40% are underrepresented minority students and 50% come fro

shared extracted concept terms: computer, science; shared product terms: degree, engineer, computer, science; shared affiliation: Y Combinator

Finosu

match 59

Hi - Mark and Gab here! We met while working at Alt, a marketplace for collectibles, where we built a $200 million specialty finance business line. At Alt, we faced the complex challenges that come with servicing consumer loans. We spent countless hours and resources developing internal tools to manage loan payments, communicate with borrowers, and keep track of loan performance—all while ensuring a positive experience for our customers. However, after dealing with the headaches of manual data e

shared product terms: met, marketplace, servic, loan; shared product theme: finance and payments, sales and marketing; shared affiliation: Y Combinator

Semble AI

match 48

Semble builds custom AI agents trained on how your business actually runs and plugged into the tools your team already lives in. Jonathan and Ethan met studying computer science at Stanford. Jonathan worked at Convergint, one of the world's largest building system integrators.

shared extracted concepts: computer science; shared product terms: met, system, computer, science; same category: AI agents; shared affiliation: Y Combinator

Refresh

match 45

Training gyms for computer use and software engineering work

shared extracted concept terms: computer, engineer; shared product terms: computer, engineer, system; shared affiliation: Y Combinator

Search to Phone

match 24

Search for products and services over the phone

shared product terms: search, over, phone