Y Combinator Winter 2025 (W25) Companies

TamLabs provides AI agent teams that manage complex business workflows under user direction, handling tasks like due diligence, market sizing, and financial modeling for professional services and investment analysis.

2 investors

A platform for golfers to reserve and manage golf course tee times across multiple courses from a centralized application.

1 investor

TensorPool provides a command-line tool that manages GPU allocation and execution for machine learning model training, offering pricing lower than major cloud providers.

1 investor

Tergle provides AI-powered automation for auditing workflows, helping organizations reduce repetitive audit tasks through customized AI solutions tailored by engineers and experienced auditors.

2 investors

Tire Swing provides AI-powered income verification and applicant eligibility screening for affordable housing programs, helping property managers streamline tenant certification processes.

1 investor

Toothy AI develops AI agents for dental practices that automate insurance-related tasks including policy verification, billing, and claims processing. The software handles administrative workflows that typically consume significant staff hours at dental clinics.

1 investor

TrainLoop is a post-training research lab that trains specialized AI models for enterprise customers in pharma, biotech, logistics, and banking. The company develops custom foundation models and agents optimized for long-horizon tasks and mission-critical workflows in high-risk industries.

3 investors

An AI platform that automates investment research production for hedge funds by interviewing analysts, generating reports, and delivering them via subscription.

1 investor

Trava is an AI-powered compliance platform that audits customs entries and product classifications for US importers to identify overpaid duties, recover refunds, and ensure compliance. The platform integrates with existing ERP/PLM systems to review import records and propose defensible HTS codes, targeting companies managing international supply chains.

1 investor

Trim develops an AI model that simulates real-world physical systems and their evolution over time, using a custom transformer architecture designed to reduce computational costs for latency-sensitive applications like autonomous vehicles and scientific computing tasks.

1 investor

Truffle AI provides API infrastructure that lets developers embed AI agents into applications and communication platforms like WhatsApp and Slack.

1 investor

Tweeks is an AI-powered browser extension that allows users to modify how websites look and behave through natural language descriptions without requiring code. The tool generates custom modifications that run in a sandbox and can be shared across a community of 4,000+ published tweaks.

1 investor

Uncommon Therapeutics uses advanced technologies to develop drugs targeting rare genetic diseases, starting with Rett Syndrome, a neurodevelopmental disorder affecting approximately 1 in 10,000 girls. The company combines disease expertise with efficient drug development to advance therapeutics from discovery to clinical application.

2 investors

Vantel provides AI-powered tools to insurance brokers for analyzing policies, comparing quotes, and identifying coverage gaps across their client portfolios. The platform helps brokers make informed coverage decisions and understand policy details before claims are filed.

1 investor

Verbiflow is a SaaS categorization tool that analyzes funding database records and company websites to classify SaaS companies by their actual product offerings and customer segments. The platform helps sales teams identify and target companies that match their ideal customer profile.

1 investor

Vetnio is an AI copilot platform for veterinarians that automates clinical notes, provides diagnostic support, and manages calls and messages. The platform integrates into existing veterinary workflows and is built by veterinarians and engineers.

3 investors

Vocality Health provides AI-powered voice translation for medical settings, enabling doctors to communicate directly with non-English-speaking patients without requiring human medical interpreters in hospitals and clinics.

2 investors

Waypoint is an AI-powered platform that automates routine GIS analysis, permitting review, and transportation planning tasks for municipalities and planning firms. The tool connects to multiple data sources and uses natural language processing to execute spatial analysis, corridor evaluation, and safety assessments.

1 investor

Weave provides an engineering intelligence platform that measures and optimizes software development team productivity by analyzing code impact and engineering work patterns, integrating AI assistance to help engineers ship faster.

3 investors

Wildcard helps ecommerce and retail teams monitor how their products appear in AI shopping systems, identify improvements needed, and measure the impact on commercial outcomes. The platform connects product visibility insights to catalog work and sales metrics as shopping increasingly shifts to AI-mediated discovery.

1 investor

WOZCODE is an official plugin for Claude Code that optimizes code execution to reduce costs and improve performance for developers. The product serves individual developers and engineering teams.

1 investor

YouShift provides AI-powered software that automates shift scheduling for hospitals, reducing reliance on manual processes and dedicated scheduling staff. The platform targets broader healthcare workforce management operations.

1 investor

ZeroEntropy develops specialized machine learning models for search and retrieval-augmented generation (RAG) pipelines, offering rerankers, embeddings, and fine-tuned models for production AI systems. The company serves development teams building AI applications and agents that require high accuracy, low latency, and cost efficiency at scale.

2 investors