Y Combinator Summer 2023 (S23) Companies

Khoj builds open-source AI software tools, including a research workbench, an AI co-worker platform, and a personal assistant agent application. The company targets researchers, knowledge workers, and individuals seeking transparent, locally-runnable AI tools.

1 investor

Kino is a collaborative video editing platform that enables real-time editing with AI-assisted content assembly and search capabilities. The software supports both human editors and autonomous agents, with features for finding moments via natural language, generating animated graphics, and sharing projects via shareable URLs.

2 investors

Kite is a screen recording tool that automatically enhances recordings with zooming, 3D animations, and device mockups to create polished product demonstration videos. It serves software companies and product teams who need to produce marketing and educational video content.

1 investor

Kobalt Labs provides software that analyzes third-party contracts and documentation against internal policies and external regulations to identify and track compliance risks for banks and fintech companies. The platform enables financial institutions to evaluate vendor partnerships more quickly without expanding their compliance teams.

3 investors

Langdock builds a model-agnostic AI platform with chat, integrations, agents, APIs, and workflows designed to help businesses automate and augment work. The company serves enterprises seeking to increase workforce productivity through AI-powered tools.

2 investors

Letter AI provides an AI-native revenue enablement platform for sales and GTM teams, delivering personalized content, training, coaching, and buyer engagement tools. The platform combines generative AI with company-specific data to help revenue teams improve deal cycles and win rates.

3 investors

Letterbook is an AI-native customer support platform that integrates with email inboxes, databases, and payment systems to help teams manage and resolve support tickets. It provides omnichannel ticket management, automated triage, and AI-assisted resolution for teams scaling fast.

1 investor

1 investor

LifestyleRx provides digital health programs for type 2 diabetes and metabolic diseases, delivered by teams of physicians, dietitians, and other healthcare professionals. The platform serves patients in Canada with conditions including prediabetes, hypertension, high cholesterol, heart disease, and related metabolic conditions.

2 investors

Line.Build provides a platform that helps energy efficiency contractors locate and apply for financing options and rebates by aggregating fragmented incentive programs from utilities, government sources, and private lenders. The software aims to simplify access to funding for building retrofits that reduce energy consumption and emissions.

1 investor

askLio is an AI-powered procurement platform that allows employees to request goods and services using natural language, automating the sourcing, negotiation, and execution of purchases. The platform serves enterprise employees and procurement teams across industries to reduce administrative burden and accelerate purchase cycles.

2 investors

Lysto provides revenue intelligence software for startups that generates automated insights and answers about business performance with minimal manual setup required.

1 investor

Magic Loops is a no-code platform that enables users to build AI-native applications without coding. The platform serves makers and developers who want to create professional apps in minutes rather than months.

1 investor

Maintouch automates marketing services, beginning with SEO and AI-driven search optimization to replace manual labor in the trillion-dollar marketing services industry.

1 investor

Mandel is an AI platform that automates supplier communication and procurement workflows by reading supplier emails, detecting disruptions, and coordinating actions across email, ERP, and document systems for manufacturing and production teams.

1 investor

MantleBio provides a data management and analytics platform designed for biotech researchers and scientific teams. The platform integrates biological data, enables advanced bioinformatics analysis, and accelerates drug development and genomics research workflows.

3 investors

Margin provides a point-of-sale system and operating platform designed for beer, wine, and liquor retailers, integrating inventory management and business operations to improve profitability.

1 investor

Maven Bio provides software for biotech investment firms to accelerate due diligence and thesis development, automating screening, competitive analysis, and clinical data review to compress research timelines from days to hours.

1 investor

MediSearch provides instant answers to medical questions sourced from reliable medical information. The platform serves consumers seeking evidence-based responses to health inquiries.

4 investors

Metalware provides autonomous binary security testing for firmware without requiring source code, hardware, or test harnesses. The platform finds vulnerabilities and crashes in embedded systems for automotive, aerospace, medical, and critical infrastructure sectors.

1 investor

Metoro is an observability platform for Kubernetes environments that uses eBPF and AI agents to automatically detect production issues, investigate alerts, verify deployments, and generate fix pull requests. It requires no code changes or SDK integrations and operates at the kernel level to collect logs, metrics, traces, and profiling data.

2 investors

MICSI develops AI software that improves MRI image resolution and reduces scanning duration, enabling imaging centers to increase patient capacity. The company aims to enhance MRI technology's diagnostic accuracy through more consistent, quantifiable imaging data.

1 investor

Midrender is an AI-powered animation creation tool that allows users to generate and edit high-quality animations using plain language descriptions. The platform supports both manual visual editing and agent-based automation, integrating into existing design workflows via CLI or MCP to keep animations consistent with brand guidelines.

1 investor

Minded provides an AI agent that automates repetitive business tasks like customer refunds, data entry, reporting, and onboarding by learning workflows from single demonstrations and executing them across tools like Slack, Gmail, Teams, and Chrome.

1 investor