Y Combinator Winter 2021 (W21) Companies

Eat Blueprint prepares meals based on longevity-focused nutritional protocols, using organic and locally-sourced ingredients while excluding gluten and seed oils.

1 investor

Emerge Tools provides mobile performance and competitor analysis tools for iOS and Android development teams, enabling measurement of app size, performance regressions, and competitive benchmarking without requiring source code access.

2 investors

Enable Us provides buyer enablement capabilities that allow customers to view tailored content, get answers, and make purchases. The company serves organizations looking to enhance their revenue operations.

1 investor

Encord provides a data platform for developing and deploying multimodal AI systems, serving AI development teams at scale across training and production environments.

5 investors

Enode provides APIs that enable energy companies and climate tech startups to coordinate electricity demand and supply by automatically optimizing consumer energy usage based on renewable availability and pricing. The platform manages consumption across over 250 million energy customers globally and supports 1000+ energy devices spanning 80+ brands.

4 investors

Entelexo develops engineered exosome therapeutics for autoimmune diseases such as rheumatoid arthritis, Crohn's disease, and psoriasis. The company uses a proprietary platform to design exosomes that communicate with multiple diseased cell types simultaneously, replacing traditional single-target treatments.

1 investor

eqtble provides a people analytics platform that helps HR and talent leaders analyze workforce data to inform employment decisions. The platform aggregates insights from existing HR data sources for mid-to-large companies.

4 investors

Estoca provides software and logistics services that help D2C e-commerce brands in Latin America manage warehousing, fulfillment, and delivery operations more efficiently. The platform uses artificial intelligence to coordinate storage and shipping across a network of partners, aiming to reduce costs and speed up order delivery.

3 investors

Hyperproof provides an AI-native third-party risk management platform that automates vendor security assessments and centralizes risk data for security, procurement, and compliance teams. The platform streamlines vendor onboarding and delivers continuous visibility for audits and reporting.

4 investors

Fable provides a centralized platform for product teams to organize and maintain current product specifications and decisions in one location.

1 investor

Faction develops a hybrid autonomous vehicle platform called DriveLink that combines autonomy with remote human assistance (TeleAssist) for driverless fleet operations. The platform serves fleet operators seeking near-term commercial deployment of autonomous vehicles.

3 investors

Fathom provides AI-powered meeting intelligence that automatically captures notes, summaries, and transcripts while surfacing decisions and action items across Zoom, Google Meet, and Microsoft Teams. The platform integrates with enterprise tools like Slack, Salesforce, and HubSpot to help teams—particularly sales, operations, marketing, and customer success—maintain shared context and reduce administrative overhead.

4 investors

Feroot discovers and monitors third-party scripts, tags, and trackers on websites to detect malicious or unwanted code and block threats. The platform helps organizations comply with PCI DSS, HIPAA, GDPR, CCPA, and other regulations while protecting customer data.

3 investors

FifthTry offers a documentation platform that integrates with GitHub and prevents code deployments until documentation is updated and approved, targeting development teams managing code repositories.

1 investor

Finantier provides financial data and infrastructure services to businesses building financial applications in Southeast Asia.

2 investors

Finary is a social platform where users can share investment portfolios, communicate with other investors, and discuss investment decisions together.

1 investor

Finary is an investment management platform that allows users to track and manage their investments in one place, including crypto assets. The platform serves retail investors seeking transparent fee structures and simplified access to financial advice.

2 investors

Finley provides software to banks and asset managers that automates debt capital management, due diligence, compliance, and reporting for asset-backed finance, private credit, and structured finance. Following its 2026 integration with Concord, the platform expanded to offer backup servicing, collateral management, and fund administration across the deal lifecycle.

3 investors

Fintoc provides an API for businesses to automate payment identification, reconciliation, and transfers in Mexico, enabling large-scale collection and disbursement of SPEI transfers. The platform serves over 1200 companies with features for treasury management, batch payments, and fraud prevention.

3 investors

Firstbase builds an all-in-one business operations platform that automates back office tasks for founders globally, including company incorporation, management, and growth services.

4 investors

FirstSupport.ai provides an AI assistant integrated with Zendesk that helps customer support agents respond faster, handle multilingual inquiries, access knowledge base information, and generate ticket summaries and performance reports.

1 investor

FitHub operates an online marketplace for health-focused and sustainably sourced consumer goods in Colombia.

1 investor

Flextock provides a fulfillment and logistics platform that manages warehouse operations, order consolidation, and cross-border expansion for e-commerce businesses. The company serves online retailers and merchants looking to scale across multiple sales channels and international markets, with operations focused on the MENA region.

7 investors

Flok designs and plans corporate retreats tailored to specific goals such as connection, knowledge retention, alignment, and celebration. The company works with enterprises to orchestrate multi-day events that balance work, play, and strategic objectives.

1 investor