Y Combinator Winter 2021 (W21) Companies

Abacum is a financial planning and analysis (FP&A) platform designed for mid-market finance teams. The platform enables clients to manage planning models without requiring system administrators, supporting faster implementation and adoption across finance and broader organizational teams.

2 investors

Aerotime is a team collaboration platform that consolidates tasks from multiple tools and apps into a single feed, helping Sales, Product, Customer Success, and Engineering teams coordinate work. The product integrates with Slack and existing workflow tools to streamline task management and internal collaboration.

1 investor

AgendaPro is an appointment scheduling and business management software for salons, spas, and wellness clinics. The platform offers appointment booking, customer relationship management, inventory control, payment processing, and marketing tools designed to help beauty and wellness businesses grow.

5 investors

Alba Orbital manufactures PocketQube satellites and operates as a launch broker, providing small satellite deployment services. The company also operates nighttime imaging satellites and ground station services for government and commercial clients in the space sector.

3 investors

Albedo develops a flight-proven platform for Very Low Earth Orbit operations, providing satellite-based insights and connectivity services for national security and critical infrastructure systems. The company focuses on making space infrastructure operationally viable and resilient.

10 investors

Alinea is a digital wealth management platform that provides AI-assisted portfolio management and automated investing for individual investors. The platform combines expert-built portfolios with an AI copilot, human advisors, and is SEC-registered to serve retail investors building wealth.

11 investors

Alltruists delivers bimonthly subscription boxes containing educational materials, activities, and volunteer projects designed for children to learn about and engage with social issues like homelessness, hunger, and climate change.

1 investor

Alokai develops frontend software for ecommerce retailers to build fast, modern online storefronts using composable commerce and headless architecture. The platform provides ready-made components, integrations, and services that developers can use individually or together throughout the frontend development lifecycle.

3 investors

Alpas builds AI-driven procurement software that helps procurement departments identify new suppliers significantly faster. The platform serves supply chain and sourcing teams at large industrial companies through data-driven insights and supplier discovery tools.

2 investors

Anima is a healthcare platform that combines online consultation with productivity tools, featuring EHR integration, advanced analytics, and AI-powered document processing to streamline primary care workflows and improve patient outcomes.

3 investors

Arnata provides AI agents for transportation and logistics companies that automate repetitive tasks by syncing with transportation management systems, load boards, and phone systems. The company serves logistics teams and food supply chain businesses.

5 investors

Arpio provides an automated disaster recovery platform purpose-built for AWS and Azure cloud applications. The platform orchestrates fast failover and recovery from outages, cyberattacks, and other cloud disasters without requiring scripts or runbooks.

5 investors

Atomic Industries uses artificial intelligence and custom software to design plastic molds for manufacturing, enabling faster production of injection-molded parts for customers.

8 investors

Atrato Pago is a Mexican fintech providing point-of-sale credit financing that connects consumers with affiliated merchants, enabling customers to make purchases on installment plans while merchants increase sales through embedded lending.

4 investors

Aurabeat develops sustainable air treatment and sanitization solutions for commercial properties and organizations, including patented ventilation technology (AirSonic) and FDA-registered antimicrobial air sanitizing systems. The company serves enterprise and consumer markets globally with energy-efficient and antiviral air treatment products.

1 investor

Auricle develops a neurostimulation implant designed to restore hearing for patients who do not benefit from hearing aids or existing solutions.

1 investor

Authologic provides digital identity verification and KYC/AML compliance solutions for regulated businesses globally. The company offers identity verification services across multiple continents through a network of providers and resellers.

6 investors

AuthZed provides authorization infrastructure that automatically evaluates access permissions based on team and organizational hierarchies, eliminating the need for manual permission syncing and background jobs. The platform serves enterprise software builders who need dynamic access control that updates in real-time as team memberships change.

4 investors

Avenue is an operations monitoring and automation platform that connects to data sources like Google Sheets and databases to alert teams about issues and orchestrate workflows across tools like Slack, Asana, and Zendesk. It serves operations, business operations, and engineering teams across industries.

2 investors

Avion School is a coding bootcamp that teaches web development skills to beginners and career-switchers, offering programs in JavaScript and Ruby with job placement support for graduates.

1 investor

Aviron manufactures interactive fitness equipment including rowing machines, exercise bikes, and treadmills that incorporate game elements and streaming entertainment to motivate workouts. The company sells directly to consumers seeking engaging home gym alternatives to traditional cardio machines.

5 investors

Avocado is a point-of-sale platform designed for food trucks, coffee shops, and restaurants, offering features including QR code ordering, handheld POS, AI-powered order taking and reporting, and payment processing. The platform charges no monthly or merchant fees.

1 investor

Awari offers cohort-based online courses in Brazil targeting tech professionals, taught by practitioners from major companies, as an alternative to traditional master's degree programs.

1 investor

Axiom.ai provides a no-code tool that records and replays browser interactions to automate repetitive tasks, allowing non-technical users to program routine workflows by example rather than code.

4 investors