Whether you want to level up your skills or build a great team, CodeSignal’s skills assessments and AI-powered learning tools get you where you need to go.

Rippling gives businesses one place to run HR, IT, and Finance. It brings together all of the workforce systems that are normally scattered across a company, like payroll, expenses, benefits, and computers. For the first time ever, you can manage and automate every part of the employee lifecycle in a single system.

Happydance builds high-performance careers websites that turn candidate experience into competitive advantage. Our SaaS platform helps mid-market and enterprise companies attract top talent, showcase their employer brand, and convert interest into hires, seamlessly and at scale.

Most recruiting teams are overwhelmed by inbound applicants or ignore them completely. June helps you make the most of that volume with immediate AI interviews that surface the best-fit candidates automatically. How it works: We contact candidates instantly for screening interviews and analyze their responses right away. No scheduling. No logins. No effort from your team. You get clear, ranked results quickly.

HackerRank helps companies develop the strongest tech teams around. HackerRank helps candidates sharpen their tech skills and pursue job opportunities.

About Tofu Tofu is the AI fraud detection platform that protects companies from fake applicants and bad actors. Backed by leading investors, Tofu uses multi-signal analysis to identify sophisticated hiring threats - from AI-generated applications to state-sponsored actors like North Korean IT workers. Companies like Circle.com and Samsara trust Tofu to secure their hiring pipelines. Our fraud detection capabilities include: • AI Fraud Screening: Automatically analyzes every applicant across 40+ of signals - resume metadata, cross-network identity verification, and behavioral patterns - to surface risk before you ever review a resume. • Risk Reports: Clear, recruiter-friendly reports that explain exactly why an applicant was flagged, with actionable recommendations for next steps. • Cross-Network Detection: Identifies applicants who've applied to multiple companies using different identities, exposing coordinated fraud rings. • Continuous Monitoring: Ongoing verification that catches threats that emerge after initial screening. • Deepfake Detection: Detect deepfake usage on interviews and ensure the same candidate shows up to every interview.

Meet the future of background checks. Certn is the screening platform built for the dynamic needs of business. With the world’s easiest background checks, you can modernize your workflows and reduce

Metaview is the Agentic Recruiting Platform with AI agents that handle sourcing, application review, notes, reporting, and all the admin recruiters hate. Every agent shares a single layer of context about your org and how you hire. They work autonomously, but never without human oversight. Your team sets the bar; the agents do the work. The result: radically efficient hiring end to end, with humans free to focus on what only humans should decide. 5,000+ world-class companies including Brex, ElevenLabs, Affirm, Airtable, and Replit build their teams with Metaview. Our suite of connected agents include: • AI Sourcing: The first truly autonomous AI sourcing agent that acts as a proactive, collaborative, context-aware teammate to find you perfect-fit candidates. • AI Notetaker: Perfect recruiting notes, totally configurable to your hiring workflow, and grounded in the context of the hire you're making. • AI Reports: A fully customizable reporting engine that lets you slice, track, and optimize your entire hiring process. • AI Job Posts: AI-powered checks and suggestions for compliant, consistent job posts.

Transform human capital management (HCM) with SAP SuccessFactors. Our HR software delivers experiences that help employees achieve their goals – and yours.

Wellfound is the leading hiring platform for startups and tech companies. It provides tools for companies to source, evaluate, and manage applicants. wellfound:ai is a suite of AI recruiting tools that integrates with Gem to automate the busy work of finding talent, so you can focus on turning great candidates into great hires.

Merge is a single API to add hundreds of integrations to your product. With Merge’s Unified API, developers access a standardized data model to pull and post data between their own platforms and the platforms that Merge offers connections with, in categories like HR & Payroll, ATS, Accounting, CRM, Ticketing, Marketing Automation, File Storage, and more. Merge manages these integrations end-to-end and provides tools that give full visibility and control over your integrations, which saves you countless hours of maintenance and support. The Merge dashboard allows developers to control data syncs, configure webhooks, troubleshoot and resolve customer issues like expired API keys, and more, without the use of engineering resources. By offering integrations at scale, Merge customers like Drata, Ramp, Calendly, and Gong close deals faster, reduce customer churn, and save engineering costs spent on building and maintaining integrations.

We work intensively with the companies for three months to get them into the best possible shape and refine their pitch to investors. Each cycle culminates in Demo Day, when the startups present their companies to a carefully selected, invite-only audience. But YC doesn’t end on Demo Day. We and the YC alumni network continue to help founders for the life of their company, and beyond.