Y Combinator Winter 2021 (W21) Companies

Neverland operates a marketplace connecting consumers with thousands of retailers for indoor and outdoor gardening supplies and equipment.

1 investor

NextPay provides payment infrastructure for businesses and platforms in the Philippines, enabling payouts, invoicing, bill collection, and embedded payment workflows across local payment rails and banking networks.

5 investors

Nimbus provides automated cost optimization for Datadog customers, reducing their observability expenses without requiring manual intervention from engineering teams.

1 investor

Nirva offers personalized lifestyle support programs including nutrition, yoga, and health coaching for individuals managing chronic conditions and lifestyle-related health issues. The service complements medical care to address digestive health, stress, sleep, chronic pain, and hormonal imbalances through evidence-based protocols delivered virtually across the UK.

1 investor

Noble provides modular software components that enable companies to evaluate customer creditworthiness and track changes in credit quality over time, supporting the construction of credit assessment systems.

2 investors

noHQ enables companies to establish legal business entities across multiple countries and manage payroll and hiring for international employees in compliance with local regulations.

1 investor

Nourish provides personalized medical nutrition therapy and patient education focused on long-term behavior change. The company delivers evidence-based nutritional care recommendations and coordinates with patients' healthcare teams to improve health outcomes.

4 investors

Noya converts existing industrial equipment such as cooling towers into carbon dioxide capture systems, lowering the initial investment and deployment time required for direct air capture operations.

7 investors

Nuntius develops programmable nanocarriers for drug delivery that can target tissues beyond the liver and utilize machine learning to optimize carrier performance. The company serves pharmaceutical and biotech organizations developing targeted therapeutics.

2 investors

Observa detects and alerts on unintended database exposures to help organizations identify and remediate data leaks before they're exploited.

1 investor

OctiFi offers interest-free installment loans for Southeast Asian consumers buying furniture and home goods online. The company enables shoppers to split purchases into multiple payments without additional fees.

1 investor

OlaClick provides a point-of-sale and delivery management platform for restaurants, including AI-powered menu creation, order management, and loyalty programs. The platform serves restaurants in Brazil and Latin America with commission-free direct-to-consumer sales capabilities.

5 investors

Ollama provides a platform for building with and running open-source language models locally and in the cloud. It enables developers to quickly deploy and access models like Claude Code and OpenClaw.

2 investors

Ontop enables companies to hire and pay contractors globally while providing contractors with access to a financial account, card, and spending tools. The platform automates payroll, compliance, and contracts across 150+ countries.

6 investors

OpenCode is an open-source AI coding agent that assists developers with writing code across terminal, IDE, and desktop environments. It supports multiple LLM providers and prioritizes user privacy by not storing code or context data.

1 investor

Orbillion Bio develops cultivated beef using computational optimization and proprietary bioprocess controls to achieve cost-competitive production at scale without genetic modification or expensive growth factors. The company targets the ground beef market through partnerships with major food corporations.

6 investors

N/A - This is a parked domain listing page, not a company website.

1 investor

A software tool that uses AI to adapt videos to different screen dimensions and formats without requiring new filming or reshoots.

1 investor

Pagaloop is an SDK and API platform that enables developers to embed government payment collection directly into their applications, supporting taxes, permits, and municipal services across Mexico City and federal agencies. The platform integrates with ERPs, fintechs, wallets, and municipal portals, handling card, SPEI, and cash payments with fraud detection and regulatory compliance built in.

2 investors

Pangea is a platform that connects teams with top talent and enables workers to find opportunities with flexible work arrangements.

2 investors

Parsagon builds an AI system that collects and analyzes public policy documents from government bodies across multiple jurisdictions, helping enterprises and policy organizations identify regulatory changes and insights they might otherwise overlook.

1 investor

Crossbeam is a platform that enables companies to securely share and activate data from their partner ecosystems. It provides visibility into customer overlaps, prospect connections, and deal opportunities across partner networks to inform sales and revenue decisions.

2 investors

Pensil is a community platform that provides live session hosting, webinar capabilities, and community management tools with integrated video streaming and recording features. The platform serves organizations building online communities across education, nonprofits, and freelancer networks.

1 investor

A financial platform that allows employees in Egypt to access advance payments on their salaries before month-end and process bill payments. The service is offered with employer partnership and targets wage-earning workers in emerging markets seeking better financial management options.

1 investor