Typeface is an enterprise marketing AI platform that orchestrates specialized AI agents, brand intelligence, and agentic workflows to help Fortune 500 companies produce personalized, on-brand marketing content at scale. Founded in 2022 by former Adobe CTO Abhay Parasnis - before ChatGPT launched - the company became a unicorn within one year of founding, raised $265M, and built the Arc platform: a full-stack marketing operating system spanning brand intelligence (Arc Graph), purpose-built marketing agents (Arc Agents), collaborative workspaces (Arc Spaces), and enterprise-grade custom workflow tooling (Arc Forge).
Unit is an embedded finance platform that lets software companies add bank accounts, cards, payments, and capital to their products via API — without becoming a bank. Founded in 2019 by Israeli entrepreneurs Itai Damti and Doron Somech, Unit reached unicorn status in 2022 at a $1.2B valuation, becoming the first BaaS provider to hit that milestone. The company processes $80B+ in annual transactions and serves 2M+ end-customers across 140+ software platforms, from workforce management apps to real estate marketplaces.
Vanta is the leading automated trust management platform that helps companies earn and prove their security posture. Founded in 2018 by Christina Cacioppo after she experienced the manual nightmare of SOC 2 compliance at Dropbox, Vanta automates compliance across 37+ frameworks including SOC 2, ISO 27001, HIPAA, and FedRAMP. With 15,000+ customers, $504M raised, and a $4.15B valuation, Vanta has turned the famously tedious world of security audits into a continuous, automated process - and is now evolving into an agentic AI platform where a 24/7 AI GRC engineer does the heavy lifting.
Wardstone is a Y Combinator F25 defense startup building a global constellation of satellites equipped with space-based interceptors to kinetically destroy hypersonic and ballistic missiles. Founded by brothers Sebastian and Tobias Fischer, the company is pursuing America's Golden Dome initiative - a layered missile defense system that can engage threats in space before they reach US soil. With a $5M seed round and three successful automated intercept demonstrations during YC, Wardstone is positioning itself as a next-generation missile defense contractor targeting a $40B/year market.
Wavedash is a San Francisco-based startup (YC X25) that lets players jump into high-end PC games directly in their browser - no launcher, no download, no install. Built on WebAssembly and WebGPU, the platform acts like 'Steam for the web,' giving indie developers a friction-free distribution channel where they keep 90% of revenue. Backed by Floodgate's Mike Maples Jr., Jawed Karim (YouTube co-founder), Griffin Gaming Partners, and Y Combinator, Wavedash launched its public beta in December 2025.
Wayco is a New York-based AI operator built for the medlegal industry, automating the full lifecycle of personal injury and medical-legal cases from first intake call to settlement. Founded by 19-year-old Tajikistani prodigy Iqbol Temirkhojaev - who had his first VC-backed startup at 13, his first exit (to the United Nations) at 14, and a software patent at 15 - Wayco uses voice AI and intelligent case coordination to replace the days of phone calls and paperwork that currently define medical case management. Backed by Y Combinator (W26) with $500K in seed funding, the company is positioning itself not just as a software vendor but as an AI-native law firm that expands access to justice for Americans.
Wayline is an AI voice and text platform purpose-built for property managers. Branded as 'Operator,' it replaces the receptionist, leasing agent, and maintenance coordinator with a single always-on AI that answers calls and texts 24/7, converts leads, books showings, triages maintenance requests, dispatches vendors, and closes tickets - all without a human lifting the phone. Backed by Y Combinator (S25) and built by two repeat founders with deep roots in real estate and enterprise software, Wayline targets the 46 million rental units in the US where overworked property teams are perpetually one missed call away from a vacancy.
Waypoint Transit is an AI-powered urban planning platform that automates the creation of civil infrastructure studies for city governments and transit agencies. Founded in 2024 by Stanford graduates Varun Tandon and Ryan Johnston, the company replaces months of repetitive consultant work with AI-driven analysis - cutting costs by 70% and timelines from years to months. In a market where U.S. cities spend $50B annually on planning, Waypoint is already working with 10+ municipalities across the country.
Wedge is the operating system for healthcare AI agents - think Palantir, but for hospitals and health plans. Founded in 2025 and backed by Y Combinator (S25), Wedge helps healthcare organizations deploy, govern, and scale AI agents that automate back-office work like medical records retrieval, claims management, payment reconciliation, and medical coding. With forward-deployed engineering embedded inside health institutions, Wedge doesn't just sell software - it builds, monitors, and maintains AI products permanently inside its customers.
Wideframe is an AI coworker for professional video editors that automates the tedious prep work - searching, labeling, organizing, and sequencing footage - that takes up roughly 75% of an editor's time outside the timeline. Built for Mac on Apple Silicon, it runs entirely on-device, reads and writes native Adobe Premiere Pro project files, and lets editors describe what they need in plain language. The result: hours of prep work compressed into minutes, and editors freed up to actually edit.
Wildcard is a Generative Engine Optimization (GEO) platform that helps e-commerce brands get their products discovered and purchased through AI shopping channels like ChatGPT Shopping, Google Gemini, Amazon Rufus, and Perplexity. Founded by Kaushik Mahorker and Yagnya Patel - both veterans of Scale AI, Tesla, and Amazon - Wildcard addresses the core problem that 67% of products lack the structured attributes AI engines need to recommend them. Their platform provides SKU-level analytics, catalog optimization, and content creation tools so brands can win in the emerging AI-first commerce landscape.
Willow is a San Francisco-based AI voice dictation startup that replaces the keyboard with voice input across any app. Built by two Stanford dropouts, the product delivers sub-500ms latency, 40%+ higher accuracy than built-in dictation tools, and context-aware transcription that handles technical jargon and proper nouns. Backed by Y Combinator and a $4.5M seed round, Willow targets knowledge workers - engineers, managers, sales teams - helping them type 4x faster by speaking naturally. Enterprise customers include Uber, Gusto, Canva, and GitHub.
Woz (WOZCODE) is a Claude Code plugin built by MIT engineers Ben Collins and Brad Eckert that cuts AI coding costs by 25-55% and speeds up most tasks by 30-40%. Instead of letting Claude Code burn tokens on bloated built-in file operations, WOZCODE replaces them with smarter, leaner alternatives - three specialized agents (code, explore, plan) that do more with less. It installs in two commands, runs locally with no data exfiltration, and works alongside your existing Claude subscription. Backed by Y Combinator (W25) and a $6M seed round, Woz is building the efficiency layer that makes AI-assisted development economically viable at scale.
x1 is the world's most powerful AI app studio, built for iOS. It replaces chaotic AI demo generators with a structured, end-to-end system that takes builders from raw idea to a production-ready App Store launch - generating native Swift and Xcode code, not throwaway prototypes. With modular studios for product design, branding, onboarding, monetization, and growth, x1 is what happens when someone finally takes AI-assisted app development seriously.
YouLearn is an AI-powered personalized tutoring platform built by students, for students. Founded by three college friends frustrated with outdated lecture videos and generic AI tools, YouLearn transforms any learning material - PDFs, YouTube videos, lecture slides, even photos - into concise notes, adaptive quizzes, and an interactive AI tutor. With 2M+ users globally, $770K ARR, and backing from Y Combinator's Spring 2025 batch, YouLearn is building what they call a modern-day Aristotle: a lifelong AI tutor that grows alongside each student.
YouShift is building the operating system for hospital workforce management - an AI-powered platform that automates shift scheduling, swap management, and compliance tracking for healthcare teams. Founded by three Harvard alumni, the company targets the massive inefficiency in hospital staffing: full-time administrators juggling spreadsheets, chaotic last-minute coverage, and staff burnout from unfair schedules. With 1,000+ doctors already on the platform across Europe and the US, YouShift is turning hospital scheduling from a daily fire-fight into a background process - so clinicians can focus on patients, not paperwork.
Zalos builds computer agents that automate repetitive finance operations - from reconciliation to accounts payable - without replacing existing systems. Instead of API integrations, its agents learn directly from screen recordings and then log into ERPs like NetSuite, SAP, and Sage the same way a human would, handling 2FA, navigating screens, and maintaining full audit trails. A Y Combinator Fall 2025 company, Zalos raised $3.6M seed to put invisible finance workers inside the software CFOs already use.
Zarna is building the first cohort of AI associates for private capital - autonomous agents that plug directly into a firm's data and work like a deal team that never sleeps. Founded by four UC Berkeley alumni who were previously forward-deployed engineers at AEA Investors, Zarna automates the grunt work of private equity: tearing down CIMs, building LBO models, drafting IC memos, updating CRMs, and surfacing warm introductions. Backed by Y Combinator (F25), the platform recovers ~80 hours per week for 15-person deal teams and promises full ROI in under 90 days.
Zatanna is a Y Combinator W26 startup that turns software into agent-first APIs. Most AI agents are stuck navigating clunky UIs to interact with systems that never built a proper API - Zatanna fixes that by observing a workflow once, reverse-engineering the underlying HTTP request sequence, and serving it as a clean, reliable endpoint. No browser scripts, no screen-scraping fragility: just fast, production-grade API access to legacy ERPs, insurance portals, marketplaces, and any operational software your agents need to talk to.
Zavo is building the AI-powered operating system for restaurants and hospitality businesses. Founded in May 2025 by Can Zehebi and Ilkan Gezer and backed by Y Combinator (F25), Zavo replaces the patchwork of disconnected tools most restaurant operators rely on - separate POS, payments, reservations, and marketing software - with a single unified platform that uses agentic AI to automate finance, operations, and customer engagement. With 800+ businesses on the platform less than a year after launch, Zavo is moving fast in a market dominated by legacy incumbents.
Zeon Systems builds AI-powered robotic infrastructure that automates scientific laboratory experiments. Founded in 2025 by Brontë Kolar and Tahir D'Mello - both Forbes 30 Under 30 honorees who previously worked together at Latch Bio - the company uses off-the-shelf robotic arms paired with depth cameras and a natural language interface to let scientists describe experiments in plain English and have robots execute them autonomously. Already piloting at Stanford and UCSF, Zeon targets the multi-billion-dollar lab automation market by lowering the cost and complexity of scientific research - betting that cheaper automation means more experiments, and more experiments mean faster cures.
Vercel is the AI Cloud for frontend developers - a platform that makes deploying web applications as frictionless as a git push. Founded in 2015 as ZEIT by Guillermo Rauch, the Argentine-born dropout who also created Socket.IO and Next.js, Vercel grew from a side-project deployment tool into a $9.3 billion company powering websites for OpenAI, Walmart, Nike, and thousands of startups. Its open-source framework Next.js has logged over 500 million downloads in 12 months alone, and its AI tool v0 lets anyone turn a text prompt into a working web UI. Vercel is the company betting that the next billion developers won't write code at all.
Vouch is a technology-first insurance broker built specifically for high-growth startups and venture-backed companies. Founded in 2018 by Sam Hodges and Travis Hedge, Vouch has reimagined business insurance with a digital-first platform that lets founders get covered in minutes - not weeks. With over $203M raised, 6,000+ companies insured, and a landmark 2025 deal with Hiscox, Vouch sits at the intersection of fintech and insurtech, offering everything from general liability to first-of-its-kind AI-specific coverage.
Weights & Biases (W&B) is the AI developer platform that the world's leading machine learning teams use to build, train, and deploy better models faster. Founded in 2017 in San Francisco, W&B provides experiment tracking, model management, and LLMOps tooling used by over 1 million developers - from OpenAI and Meta to Toyota and AstraZeneca. Acquired by CoreWeave in May 2025 for $1.7 billion, W&B is now the software backbone of one of the most important AI infrastructure companies in the world.
Zapier is the world's leading workflow automation platform, connecting 9,000+ apps so businesses can automate repetitive tasks without writing a single line of code. Founded in 2011 by three University of Missouri graduates, it became a $5 billion company on just $2.68 million in funding - one of the most capital-efficient growth stories in tech. Today, 69% of Fortune 1000 companies use Zapier, which has processed over 81 billion automated tasks and is rapidly evolving into a full AI orchestration platform.
Zero is an AI-native email client built from scratch to put artificial intelligence at the center of how people read, write, and manage email. Founded in 2025 by Nizar Abi Zaher and Adam Wazzan, Zero went through Y Combinator's X25 batch and raised $2M from 1984 Ventures, Pioneer Fund, and YC. The product lives at 0.email and promises to cut the time knowledge workers spend on email by 70% through smart prioritization, thread summarization, AI-drafted replies, and conversational inbox search. With over 10,000 GitHub stars on its open-source repo, Zero is one of the fastest-growing AI email projects of 2025.
Zephyr Fusion is building the first in-orbit fusion power source - a compact, megawatt-class reactor designed to run in the vacuum of space. Founded by two physicists who met in grad school operating a spherical tokamak, the San Diego-based startup uses a levitated dipole magnetic confinement approach with high-temperature superconductors. Their bet: space makes fusion easier, not harder. With launch costs down 10x and mass-produced HTS tapes providing 10x more field per kilogram, Zephyr Fusion aims to power the industrial revolution that humanity is about to have off-planet.
ZeroSettle is a drop-in SDK that lets mobile app developers skip Apple's 30% cut on in-app purchases by switching users to direct billing - charging just 5% + $0.50 per transaction instead. Built by two former Apple software engineers and backed by Y Combinator (W26), ZeroSettle arrived at the exact moment the Epic v. Apple ruling cracked open a $150B+ market. Setup takes 15 minutes, and developers get instant Stripe payouts, built-in tax compliance across 190+ countries, and smart conversion flows to migrate existing subscribers - all without touching App Store rules.
ZeroEntropy is the AI infrastructure company fixing the broken retrieval layer of modern AI applications. Founded in 2024 by Ghita Houir Alami (CEO) and Nicholas Pipitone (CTO), the San Francisco–based startup builds rerankers, embedding models, and end-to-end search infrastructure that outperforms Google, OpenAI, Cohere, and Voyage on public benchmarks. Backed by Y Combinator (W25) and a $4.2M seed round led by Initialized Capital, ZeroEntropy's products — zerank-2, zembed-1, zsearch, and ze-onprem — are used by enterprises including Assembled (serving Stripe, Canva, Robinhood, and Notion). The company's proprietary zELO training methodology, derived from chess Elo ratings and the Thurstone statistical model, produces models with calibrated relevance judgments that binary labels cannot replicate.