Y Combinator Winter 2023 (W23) Companies

Helios deploys AI voice agents that handle customer support, payment collections, sales, and retention calls for enterprise customers, particularly financial institutions. The platform enables companies to automate high-volume voice conversations at scale without manual agents.

1 investor

A full-stack monitoring platform that helps developers identify performance issues and bugs in web applications through session replay and error tracking.

1 investor

Hindsight uses AI to analyze sales deals by reconstructing deal history from calls, emails, and buyer feedback, then scores deals against company playbooks and surfaces insights to sales reps to improve win rates.

1 investor

HippoScribe is an AI-powered ambient recording and documentation tool designed for physical therapists, speech language pathologists, and pelvic health practitioners. It automatically generates clinical notes from patient visit recordings and integrates with web-based electronic medical record systems.

1 investor

Homeflow operates a digital platform where large real estate investors can centralize insurance purchases and management across their portfolio, including viewing policies, adjusting coverage, and obtaining quotes for new properties.

1 investor

Hona builds AI-powered case management software that automates client follow-ups and case tracking for law firms. The platform helps legal teams focus on case work by handling routine communication tasks.

1 investor

Honeydew provides a semantic layer for enterprise data warehouses that unifies business logic and context across AI agents and business intelligence tools. The platform enables consistent data governance and querying for organizations using multiple BI and AI interfaces.

4 investors

IcePanel is a collaborative diagramming and modeling tool for software architecture that enables teams to create and maintain a single source of truth for their system designs. The platform supports C4 models and allows architects to design systems with version control, feedback, and dynamic multi-perspective views.

1 investor

Iliad develops Aqueduct, a node-based procedural material engine with integrated AI capabilities for creating and editing custom textures and physically-based rendering (PBR) materials. The tools serve game developers, 3D artists, and creative professionals working with digital content creation.

3 investors

inBuild automates invoice processing for construction teams by using AI to match incoming invoices with Procore projects, vendors, and commitments. The platform integrates with Procore and QuickBooks Online to centralize invoicing, enable real-time collaboration, and automatically update project budgets.

2 investors

Indexical provides an AI semantic indexing and retrieval platform that uses dense vector embeddings and hybrid search (combining vector similarity with keyword retrieval) to improve enterprise search accuracy. The platform serves enterprise organizations seeking better document retrieval, question-answering, and knowledge discovery across domain-specific corpora.

1 investor

Infinia provides a unified API infrastructure for global payments and financial services, enabling businesses to collect, convert, and disburse money across 200+ countries with local compliance and regulatory requirements built-in. The platform serves fintechs, neobanks, digital wallets, and global marketplaces seeking seamless cross-border payment settlement and multi-currency account capabilities.

3 investors

Infisical is an all-in-one platform for managing application secrets, certificates, and privileged access across cloud, on-premises, and AI infrastructure, serving developer teams and organizations. The platform provides centralized storage, rotation, and auditing of credentials without requiring custom scripts or ad-hoc secret management solutions.

2 investors

Infra.new was a platform for building and deploying infrastructure, shut down in June 2026. Its creators, LaunchFlow, are now pivoting to a shared workspace for internal tools and agents targeting government teams.

1 investor

Inkeep provides a platform for building and deploying AI agents and automations through both code and visual interfaces, serving developers and non-technical users who need to automate customer support, sales, and internal workflows. The platform includes tools for knowledge base integration, application connectors, and performance monitoring.

4 investors

Interlock provides an AI multi-agent orchestration platform that coordinates multiple AI agents to automate complex workflow tasks. The platform manages dependencies, routes information between agents, and handles state management and error handling across agents that may use different models or tools.

1 investor

Invitris develops cell-free protein synthesis platforms that enable rapid design, expression, and scalable production of complex proteins for biopharmaceuticals, industrial biotechnology, and agriculture.

1 investor

Invopop provides digital invoicing and e-invoicing solutions for companies operating across multiple jurisdictions globally. The platform addresses compliance and operational challenges associated with international invoicing processes.

3 investors

Keep provides AI-powered AIOps solutions to help teams navigate observability data. The company is committed to open source and targets organizations managing infrastructure monitoring and incident response.

1 investor

Kivo Health provides AI-powered virtual rehabilitation and care programs for patients with chronic obstructive pulmonary disease (COPD), covered by insurance, designed to improve symptoms and reduce hospitalizations.

2 investors

Koywe provides financial services and regulatory compliance solutions for companies across Latin America, with operations in Chile, Argentina, Colombia, Brazil, Bolivia, Mexico, Peru, and the United States. The company serves as a strategic partner focused on building inclusive and accessible financial services in the region.

5 investors

KV.Cash operates a collaborative platform for AI model development and inference, enabling distributed participation in AI advancement through open architectures and shared computational resources.

1 investor

Kyber automates the drafting, review, and delivery of claims communications for property and casualty insurance adjusters and carriers. The platform uses AI to generate compliant, personalized notices from policy and claim data, then tracks and delivers them across email and print channels.

1 investor

Laminate provides physical card design, manufacturing, and fulfillment services for debit and credit card issuers, integrating with existing card issuing infrastructure.

1 investor