Y Combinator Winter 2023 (W23) Companies

SensorSurf analyzes pull request check failures and generates suggested code fixes that developers can directly apply to their branches. The tool targets software development teams seeking to accelerate code review cycles.

1 investor

Serial provides software that connects to production line data sources, allowing manufacturing teams to diagnose operational problems and identify their causes through query-based analysis. The platform serves engineering and operations departments at manufacturers seeking to reduce defects and associated financial losses.

1 investor

Shekel Mobility is a B2B marketplace and management system that provides auto dealerships with financial services (including credit facilities), operational automation, and cross-border transaction capabilities across emerging markets.

4 investors

Sherloq is a platform for saving, managing, and sharing SQL queries, with versioning and team collaboration features that integrate with AI chat tools. It serves data analysts and SQL users who need centralized query management and code organization.

2 investors

Shortbread develops AI-powered tools for creators to produce serialized visual stories (comics and web series) faster and at lower cost, then distributes them directly to consumers via a mobile platform. The platform combines an AI studio for rapid narrative creation with a reader destination featuring romance and dark fiction series.

4 investors

ShortLoop is a business development center platform that automates and manages customer outreach and appointment scheduling for automotive dealerships. The product helps dealership operators improve operational efficiency and control across multiple locations.

1 investor

Sirdab provides logistics and warehouse management infrastructure for companies across Saudi Arabia, offering storage, inventory management, transportation, and customs clearance through an integrated digital platform.

1 investor

Skyhook provides a developer-focused DevOps platform built on Kubernetes that simplifies infrastructure management without vendor lock-in. It targets software development teams seeking easier cloud infrastructure operations with the power of Kubernetes and better developer experience.

2 investors

SpecCheck provides software for opticians, optical labs, and their enterprise partners to manage order communication and lab operations. The platform replaces manual processes like faxed reports and phone calls with a digital workflow.

1 investor

Speedy Labs provides rebate and margin intelligence software for distributors, buying groups, and manufacturers. The platform reconciles supplier rebates, buying group programs, and payment discrepancies, then writes corrected net cost back to the customer's ERP system without requiring replacement.

1 investor

StackAI is a platform for building and orchestrating AI agents with enterprise-grade security and governance controls. It enables organizations to convert business processes into autonomous agents that integrate with existing systems, with features including human oversight, compliance certifications (HIPAA, GDPR, SOC 2), and deployment flexibility.

1 investor

Sumugi is a 3D creation and 2D composition tool designed for visual storytellers including comic creators, writers, and hobbyists. The platform enables users to stage scenes with 3D character posing and lighting, then arrange them into 2D comic layouts and visual narratives.

2 investors

Stralis develops hydrogen-electric aircraft for long-range passenger and cargo delivery applications. The company is designing aircraft that combine hydrogen fuel cells with electric propulsion for aviation.

2 investors

Struct provides a platform for deploying AI voice agents that handle phone-based tasks across multiple languages and markets, with agents currently operating at scale with thousands of daily calls.

1 investor

Suger provides a platform that unifies cloud marketplace operations for software companies, handling listing, co-selling, and transacting across AWS, Azure, and Google Cloud. The platform enables independent software vendors (ISVs) to manage their cloud GTM workflow from listing through revenue recognition.

1 investor

An API gateway that enables caching for existing fetch-based APIs without requiring code rewrites, reducing latency for development teams.

1 investor

SuperKalam is an AI-powered education platform that provides personalized mentorship and adaptive study planning for students preparing for competitive exams like the UPSC in India. The platform tracks student progress, identifies common mistakes, and sets daily learning targets to improve outcomes.

2 investors

Syncly is an AI-native platform that monitors brand mentions and sentiment across video social platforms like TikTok, Reels, and Shorts, and identifies creators for influencer marketing campaigns. The platform serves fast-moving brands seeking social intelligence, creator discovery, and customer feedback analysis.

1 investor

TableFlow is an AI-powered platform for automating document processing and data ingestion workflows. It uses large language models to automate tasks such as understanding document context, validating semi-structured data, and cleaning messy information.

1 investor

1 investor

Tennr provides an AI-powered platform for pre-visit patient processing and healthcare referral management that integrates with EHR systems and reduces patient delays and denials. The platform serves healthcare practices and referral networks by automating document processing and payor guideline compliance to streamline patient intake workflows.

7 investors

Texel provides GPU infrastructure services for large-scale cloud deployments, leveraging expertise from managing systems that served hundreds of millions of users and generated billions of images daily.

1 investor

Theya provides a Bitcoin custody platform combining multisignature security with user-friendly design for individuals, financial advisors, and businesses to self-custody and manage bitcoin. The platform enables holders to maintain control of their assets without sacrificing accessibility.

1 investor

Traceloop provides debugging and monitoring tools for developers building machine learning systems and large language model applications. The platform helps teams observe and troubleshoot production systems, including real-time inference and model behavior.

3 investors