Y Combinator Winter 2024 (W24) Companies

Hatchet is an orchestration platform for building and running mission-critical workflows, background tasks, and AI agent applications. It provides task scheduling, retry logic, event-driven triggers, and monitoring through a managed cloud service or self-hosted deployment.

1 investor

Hazel AI provides software that automatically generates Request for Proposal (RFP), Request for Quote (RFQ), and Request for Bid (RFB) documents using an agency's templates, past awards, and policies. The tool is designed for government and procurement agencies to rapidly create compliant solicitations.

2 investors

Healia is a health benefits platform that helps employers and employees manage healthcare costs through a Health Reimbursement Arrangement (HRA) product. It serves multi-income households where both spouses have employer health plans, offering AI-powered plan comparison and end-to-end claims management.

2 investors

HeartByte provides a platform that uses generative AI to help fiction writers produce stories more quickly, enabling both original narratives and works based on existing fictional universes.

2 investors

Indemni provides compliance and risk management software for freight brokers and shippers, enabling verification of drivers, carriers, and shipment documentation to prevent non-compliant assignments and costly claims. The platform integrates with transportation management systems and offers real-time visibility, driver verification, and automated workflow tools for the logistics industry.

1 investor

Infinity provides cross-border payment infrastructure for businesses, enabling them to receive international payments with transparent pricing and RBI-compliant operations. The platform serves businesses across 160+ countries with support for multi-currency accounts and local payment methods.

3 investors

InQuery provides an AI platform that transforms unstructured medical records into structured, case-ready intelligence for legal teams. The solution helps law firms and legal departments ingest, organize, and validate medical records for litigation and regulatory matters.

1 investor

InspectMind AI is an AI-powered plan checker that reviews construction drawings, specifications, and building codes to identify coordination conflicts, code violations, and specification mismatches before permit submission or field construction. The platform serves general contractors, architects, engineers, plan reviewers, and building owners for QA/QC during design phases.

1 investor

Integuru generates production-ready APIs for websites and web systems by analyzing network requests and reverse-engineering underlying APIs, eliminating the need for browser automation or RPA. The platform serves developers and teams building integrations across SaaS, healthcare, banking, logistics, and enterprise software.

1 investor

A service that automatically generates and launches multiple customized landing pages for businesses, tailored to different campaigns and use cases to improve conversion rates and search visibility.

2 investors

Junction Bioscience develops AI-driven software that generates and tests scientific hypotheses to discover new drug candidates, with an initial focus on therapies targeting neuroinflammatory and immunological diseases.

1 investor

A company focused on growth and productivity solutions that prioritizes customer needs over technology for its own sake.

1 investor

K-Scale Labs develops humanoid robots with open-source designs that can locomote, communicate, and perform object manipulation tasks. The company aims to automate routine or undesirable work through publicly available robot designs.

1 investor

Kabilah provides an AI-powered platform for inpatient nursing workflows that automates verbal handoffs, generates digital report sheets, and integrates with EHR systems to reduce documentation burden. The solution is designed for hospital nursing teams to improve patient safety and operational efficiency.

1 investor

Kater builds a decision tree platform that helps companies move from passive data observation to proactive decision-making by capturing business logic and defining paths to action. The platform serves organizations seeking to enhance their analytics capabilities through unified data models and automated hypothesis verification.

1 investor

Keystroke is a platform for building specialized agents and workflow automations that integrate with coding agents like Claude Code and Cursor, allowing users to build actual TypeScript code that lives in their repository and deploy to the Keystroke platform for credential management, logging, and access control.

1 investor

Lantern provides infrastructure and tools on top of Postgres to help companies build reliable AI applications.

2 investors

Latted is a single platform for generating and editing AI-generated videos, allowing creators to produce long-form projects from text prompts rather than managing multiple separate tools and files.

1 investor

Leaping identifies the underlying causes of software bugs and automatically generates code fixes that have been tested, helping companies reduce the cost and customer impact of defects.

1 investor

Legora builds AI-powered collaboration software for lawyers to automate routine tasks and improve efficiency in legal work. The platform enables lawyers and clients to jointly review, draft, and deliver legal projects.

23 investors

LemonSlice develops interactive avatar technology that generates real-time video from still images, enabling video communication similar to conventional video calling platforms.

1 investor

Lucite is an AI platform that transforms carrier documents into structured client-ready insights for Canadian group benefits brokers and advisors. The platform automates document processing, data extraction, and analysis across the benefits client lifecycle—from quoting and commission tracking to billing review and retirement plan analysis.

2 investors

Lumetric is an AI assistant for business professionals that automates financial modeling, data analysis, and document preparation tasks including presentations, spreadsheets, and research synthesis. It serves investment professionals and corporate teams working on financial analysis and due diligence.

1 investor

Lumona is a search engine that aggregates social media discussions and applies AI processing to surface relevant insights, allowing users to quickly review crowdsourced opinions on consumer products without manually searching across platforms.

1 investor