Accel

AI data infrastructure company that provides data labeling, model evaluation, and software to accelerate the development of AI applications for enterprises, government agencies, and AI labs.

Anysphere builds Cursor, an AI-powered code editor that helps developers write, refactor, and review code using natural language. Founded by four MIT students in 2022, the company has grown to over $1 billion in annualized revenue and is one of the fastest-growing SaaS companies in history.

Swedish audio streaming and media service founded in 2006, offering music, podcasts, and audiobooks to over 750 million monthly active users across 184 markets, making it the world's largest music streaming platform.

Electric scooter and micromobility company that pioneered shared dockless electric scooters in cities. Bird deployed fleets of app-unlocked e-scooters and e-bikes across hundreds of cities globally. Became the fastest company in history to reach a $1B valuation. After going public via SPAC in 2021, filed Chapter 11 bankruptcy in December 2023. Assets sold to Third Lane Mobility in April 2024.

Workplace messaging and collaboration platform that transformed business communication. Originally built as an internal tool at Tiny Speck during development of the game Glitch, then pivoted to become the fastest-growing enterprise software company in history.

Cloud communications and CRM platform enabling businesses to engage customers across SMS, email, WhatsApp, and other channels via APIs. Originally known as MessageBird, rebranded to Bird in February 2024. Serves 15,000+ customers across 170+ countries with AI-powered marketing, sales, and payment tools.

Communication platform for communities and friends, offering voice, video, and text chat used by hundreds of millions of people worldwide.

Frontend cloud platform and creator of Next.js

Skydio is an American autonomous drone manufacturer that builds AI-powered drones for enterprise, public safety, and defense applications. The largest drone manufacturer in the United States, its autonomous flight platform is used by over 1,200 organizations including the U.S. Department of Defense.

AI-powered background check platform that modernizes the hiring process for companies of all sizes, serving over 100,000 customers including Uber, DoorDash, and Instacart.

Cloud storage and file synchronization platform that lets users store, share, and collaborate on files across devices.

Illumio is a cybersecurity company that provides zero trust segmentation solutions to prevent breaches from spreading across data centers, cloud environments, and endpoints. The platform uses real-time visibility and automated policy enforcement to contain attacks, serving more than 20% of the Fortune 100.

AI video generation platform that enables enterprises to create professional videos from text using AI avatars. The market leader in enterprise AI video with over 60,000 customers, used for training, communications, and marketing.

Global managed marketplace for authentic sneakers, apparel, and accessories. Operates four brands: GOAT, Flight Club, Grailed, and alias. Features a ship-to-verify authentication model ensuring product legitimacy, serving over 50 million members across 170 countries.

Cloud-native cybersecurity company providing endpoint protection, threat intelligence, and cyberattack response services through its Falcon platform, protecting enterprises and governments from advanced cyber threats.

AI-powered customer communication and lead conversion platform for local businesses. Helps over 100,000 businesses manage reviews, messaging, payments, and marketing from a single dashboard. Originally founded as RepDrive, a Y Combinator W16 alumnus.

Visual web development platform that lets designers and developers build professional, custom websites without writing code, generating clean HTML, CSS, and JavaScript in real time. Bootstrapped for five years before raising venture capital.

Search-as-a-service platform that provides hosted APIs enabling developers to build fast, relevant search and discovery experiences across websites and applications.

Customer data infrastructure platform that collects, cleans, and routes customer data to hundreds of analytics, marketing, and data warehouse tools through a single API. Founded by four MIT students as part of Y Combinator S11.

AI-native cybersecurity platform replacing traditional SIEM with Security Analytics Management (SAM). Runs security analytics where data already lives, in cloud services, data lakes, and existing storage. Uses AI to enable SOC teams to create detections and automatically fix coverage gaps.

AI-powered platform for verifiable code translation and optimization across programming languages and hardware systems. Uses neuro-symbolic AI combining large language models with formal verification methods to ensure provably correct translations for mission-critical industries including defense, aerospace, semiconductors, and automotive.

Mux provides video infrastructure for developers through an API-first platform. Its core products are Mux Video (encoding, storage, and streaming) and Mux Data (quality-of-experience analytics monitoring billions of streams).

Cloud-based incident management and digital operations platform that helps IT teams detect, triage, and resolve infrastructure and application issues in real time through intelligent alerting, on-call scheduling, and automated response orchestration.

AI-powered accounting platform that automates bookkeeping, reconciliation, and financial reporting for businesses. Uses large language models to understand and process financial data with human-level accuracy.

BeReal is a social media app that prompts users once daily at a random time to capture and share an unfiltered photo using both front and rear cameras simultaneously. Designed as an antidote to curated social media, it became a viral sensation among Gen Z users in 2022, reaching 20 million daily active users.

Nansen is a blockchain analytics platform that enriches on-chain data with millions of wallet labels across multiple blockchains. Crypto investors and institutions use Nansen to discover opportunities, perform due diligence, and defend portfolios with real-time dashboards and alerts, tracking over 244 million labeled wallets across 11+ blockchains.

Personal finance app that helps users manage subscriptions, negotiate bills, track spending, and automate savings. Founded by three brothers, it was acquired by Rocket Companies for $1.275 billion in 2021 and rebranded as Rocket Money in 2022.

Cloud-native payment processing platform built by former Adyen executives. Provides banks, payment service providers, and merchants with modern card processing infrastructure. Eliminates legacy batch processing with real-time, API-first architecture.

CoreOS developed Container Linux, a lightweight Linux-based operating system designed for massive server deployments, along with key container infrastructure tools including etcd, rkt, and the Tectonic Kubernetes platform. Founded through Y Combinator (S13), the company built open source infrastructure to enable Google-scale operations for any organization. CoreOS was a founding member of both the Cloud Native Computing Foundation (CNCF) and the Open Container Initiative (OCI). Acquired by Red Hat in January 2018 for $250 million.

IoT-based smart building platform providing wireless, cloud-based access control, attendance tracking, and visitor management. BLE mesh architecture replaces traditional wired systems with smartphone-based contactless entry. Product suite includes Bluetooth/NFC readers, QR scanners, biometric systems, and AI-powered video surveillance. Serves 500+ enterprise clients across India, US, and Middle East with 500,000+ users across 24M sq ft of real estate. Holds 7 patents.