# Reprompt

> Reprompt builds AI agents for location data. Mapping companies like Foursquare, TomTom, and Radar use its agents to keep points-of-interest and business records current - verifying hours, status, ownership, and dozens of other attributes by cross-referencing web, social, government, and news sources. Founded in 2024 by ex-Mapbox and ex-Robinhood operators, the company turns work that once took weeks of manual research into runs that finish in under an hour.

- **Founded:** 2024
- **Headquarters:** San Francisco, California, United States
- **Founders:** Lukas Martinelli (Co-Founder & CEO), Rob Balian (Co-Founder & CTO)
- **Team size:** 3-5
- **Products:** Location Data, Enrichment API, Fraud & KYB, Site & Brand Intelligence, Last-Mile Delivery Data
- **Notable:** Became the first LLM-based Placemaker agent on Foursquare's Places Engine, Reports ~97% attribute accuracy with human oversight, requiring three-source corroboration, Compresses research tasks that took ~20 workdays into under an hour

## Products & services

- **Location Data** — A live-updating database of 220M+ businesses with 50+ enrichment attributes tracking real-time status across web, social, government, and news sources.
- **Enrichment API** — Enriches customer datasets with custom deep-research attributes such as operating status, ownership, franchise details, and payment methods.
- **Fraud & KYB** — Automated business verification via tax and corporate registry checks at global scale.
- **Site & Brand Intelligence** — Brand-level intelligence across 100K+ verified chains with accurate MCC matching.
- **Last-Mile Delivery Data** — Building-entrance and access data to help optimize autonomous and last-mile delivery.
- **Agents Platform** — Internal platform running Web, Vision, and Document-Reading agents (with self-driving browser agents in development) that power all Reprompt products.

## Achievements

- Became the first LLM-based Placemaker agent on Foursquare's Places Engine
- Reports ~97% attribute accuracy with human oversight, requiring three-source corroboration
- Compresses research tasks that took ~20 workdays into under an hour
- Backed by Y Combinator (W24) and multiple seed investors
- Serves established mapping companies including TomTom and Radar

## Latest updates

- **2024-01** — Reprompt joins Y Combinator's Winter 2024 batch.
- **2024-03** — Closes seed funding from YC and angel/seed investors.
- **2025-01** — Announces partnership with Foursquare as the first LLM-based Placemaker agent on the FSQ Places Engine.
- **2025-06** — Expands product line into Fraud & KYB verification and last-mile delivery data.

## Links

- Website: https://repromptai.com
- LinkedIn: https://www.linkedin.com/company/reprompt

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Profile page: https://yespress.io/reprompt-yc-w24
Published by YesPress — https://yespress.io
Last updated: 2026-07-30