Y Combinator Winter 2023 (W23) Companies

Fastgen provides a drag-and-drop platform for building custom APIs and data workflows, with an integrated PostgreSQL database that handles data operations for applications.

1 investor

Fern provides documentation, SDK generation, and CLI tools for APIs, built with AI features including integrated chat, MCP server support, and agent-first capabilities. The platform serves developers and AI agents consuming APIs across REST, WebSockets, and GraphQL protocols.

3 investors

Fetchr operates a mobile shopping application that curates and purchases clothing selections tailored to individual users' preferences with minimal user effort.

1 investor

Finic provides AI analysis of structured and unstructured data to help fraud detection teams identify organized fraud patterns that traditional rule-based and scoring approaches overlook.

1 investor

Finni matches families and children with autism spectrum disorder with ABA (Applied Behavior Analysis) therapy providers in their local area. The platform serves as a marketplace connecting patients with licensed care providers and works with insurance to make therapy accessible.

4 investors

Finta provides automated bookkeeping, tax filing, and financial reporting software designed for US-based startups. The platform integrates with banking and payment tools to auto-categorize transactions and offers expert tax services alongside its core accounting software.

1 investor

Fintool provides a conversational AI tool that analyzes financial documents for institutional investors to surface insights that would be difficult to find through manual research or traditional search methods.

2 investors

Finvest provides a digital platform for wealth management, offering access to fixed-income investments like Treasury Bills alongside tools for managing spending, saving, and investing. The product serves retail investors and consumers seeking professional-grade financial tools and wealth optimization.

1 investor

FlexDesk is a platform that aggregates lease, utilization, and workplace data for corporate real estate occupiers through integrations with property systems, HR tools, and workplace sensors. It uses AI and APIs to centralize information for lease management, coworking programs, and space utilization tracking.

1 investor

FlexWash provides point-of-sale and customer relationship management software for car wash operators, combining membership management, sales tracking, and customer data tools in a single platform. The software serves independent and chain car wash businesses across North America.

1 investor

Flower develops collaborative AI infrastructure and tools, including federated learning platforms, AI agents, and language models that enable organizations to build and deploy AI networks while maintaining data privacy and control.

5 investors

Floworks provides AI agents for sales teams to automate prospecting, email outreach, and LinkedIn engagement. The platform targets B2B sales and revenue teams seeking to expand pipeline and improve sales productivity.

3 investors

Pointwise analyzes spending patterns and financial objectives to recommend credit cards suited to individual users' needs and evolving circumstances.

1 investor

Frigade provides an SDK and AI-powered platform for building product onboarding flows including checklists, tours, and announcements that adapt to product changes. The product serves software companies and product teams looking to implement polished onboarding experiences without building them from scratch.

1 investor

Webflow is a web design and content management platform that enables teams to create, manage, and optimize custom websites and web applications without heavy developer involvement. The platform serves marketing teams, designers, developers, and agencies building brand websites and client projects.

31 investors

Glass Health provides an AI platform that assists clinicians in generating diagnostic hypotheses and developing treatment plans.

3 investors

Gluetrail is a browser extension that generates step-by-step documentation with screenshots and videos from screen recordings and audio narration. It creates support and training materials from a single recording and publishes them across internal knowledge bases, community platforms, and social media.

1 investor

GoodCourse provides short-form video training content for corporate employees on compliance and inclusion topics, using formats inspired by social media platforms.

1 investor

Gooseworks provides AI-powered growth tools for developers and teams, offering 200+ skills and APIs that integrate with AI agents like Claude Code to automate prospecting, content creation, and ad campaigns. The company also offers Goose Ads, a product for creating and optimizing video and static advertisements using AI templates and an autonomous AI coworker for managing Meta ad campaigns.

1 investor

GovEagle provides AI-powered knowledge management software for government contractors to preserve and reuse institutional context across business development, capture, and proposal teams. The platform helps federal contractors avoid rework by maintaining searchable, persistent access to customer and deal context throughout the sales lifecycle.

2 investors

Hadrius provides AI-powered compliance automation software for financial services firms, helping compliance teams automate oversight, reduce false positives, and meet SEC and FINRA requirements with enterprise-grade security.

4 investors

Hammr provides payroll, HR, and operations software purpose-built for construction contractors and specialty firms managing government and commercial projects. The platform consolidates prevailing wage, certified payroll, and administrative functions to reduce manual work.

3 investors

Haven provides AI workers trained to automate repetitive tasks for property management teams, including leasing inquiries and maintenance coordination across calls, texts, and emails.

1 investor

Helicone provides infrastructure for AI companies to route, debug, and analyze their applications. The platform serves developers and organizations building AI systems.

1 investor