Nov 19, 2025 04:21:03 PM

Companies


Showing 2001-2025 of 5661 companies
YC W25
Haleum logo

Haleum

Human Risk Intelligence for the AI-era

Communications channels are your company's most critical blindspots. While traditional monitoring focuses on files and network traffic, risks hide in everyday conversations. Haleum AI leverages the latest in LLMs to stop financial fraud, IP theft, compliance violations, and insider threats across your communication platforms

YC S25
Halluminate logo

Halluminate

Data and RL environments to automate knowledge work

We help foundation model labs and enterprises train computer use AI with data and sandboxes. A knowledge worker spends 90% of their day on a computer. A productive AI agent must similarly learn how to use our computers, browsers, and software to deliver real world value. Today, browser and computer use AI is inaccurate, slow, and expensive. Model labs and enterprises who want to improve these agents are bottlenecked by two resources: 1) High quality datasets for benchmarking and evaluations 2) Realistic sandbox environments for safe and accurate testing/training (ex. a simulated version of Salesforce) Halluminate offers a suite of products and services to address both these issues. Our evaluation service combines proprietary datasets with high quality annotations to help our customers identify and prioritize the biggest failure modes of their computer- and browser- use AI. Our platform provides a catalog of fully managed sandboxes, empowering our customers to safely and accurately test/train at scale, resulting in improved performance. Our customers see - Improved browser- and computer-use agent performance - New and emergent frontier agent capabilities - Data driven prioritization leading to exponentially faster development speed - Increased revenue/sales via marketing from public benchmarks Our paying customers already include leading computer use model labs and the two largest browser agent companies in the space. Wyatt and Jerry are friends that met their first week of school studying CS at Cornell University. They’ve been working and studying together for 7+ years.

YC S15
H

Halolife

Halolife is an online platform to find and plan a burial or cremation…

Founded in May 2015 and based in San Francisco, California, Halolife is an online platform that provides step-by-step guidance to plan and find a burial or cremation service that meets your needs, budget, and location. Halolife is the only trusted online end-of-life marketplace that offers complete transparency of business reviews and prices of funeral and cremation providers. Whether you are a family that needs immediate assistance or planning for the future, our team of caring experts will help you every step of the way. We eliminate the need to shop around by matching you with the right funeral provider. Currently, Halolife is operating in the state California with plans to expand to throughout the United States in the near future.

YC S24
Hamming AI logo

Hamming AI

Automated voice AI agent testing and monitoring

Hamming automates the QA of voice agents. (both pre-deployment testing and post-deployment analytics) Making voice AI agents reliable is hard. A small change in prompts, function call definitions, or model providers can cause large changes in LLM outputs. We have a proven track record of helping enterprises win with AI. Sumanyu (CEO) previously helped Citizen (safety app) grow its users by 4X and grew an AI-powered sales program to 100s of millions in revenue/year at Tesla. Our eng team ranks #1 on https://workweave.ai/

YC W23
Hammr logo

Hammr

Rippling for the Construction Industry

Generic payroll providers weren't built for construction - Hammr is. Our modern tools simplify construction payroll, HR and operations. We help construction companies boost profits, not paperwork.

YC W20
Handl logo

Handl

Handl converts documents (invoices, income stabs, custom forms, etc.)…

Handl converts documents (invoices, income stabs, custom forms, etc.) into structured data through simple API. 100% automation implies no need for any supervision/manual work on your side and allows you to reduce costs, improve response time, and operate accurate data. Powered by the merge of ML/AI + humans-in-the-loop to work in real-time even for the most complicated cases

YC W19
Handle.com logo

Handle.com

Simplifying Payments and Compliance for Construction Suppliers

Handle builds software that helps simplify construction financial management by automating manual and repetitive tasks throughout the life cycle of construction payments.

YC W20
Handoff logo

Handoff

AI estimator & agent for remodelers.

Handoff creates instant construction estimates and automates business operations for contractors with AI. Using generative AI technology and access to localized construction costs, Handoff provides remodelers with a fast, accurate, and intuitive way to create construction cost estimates in minutes.

YC W21
Hapi logo

Hapi

Stocks and cryptos trading app with zero commissions and no minimums…

Hapi democratizes investing for consumers in Latin America. We let anyone from Latam easily invest in stocks, ETFs and cryptos in under 5 minutes, with no minimums and no commissions.

YC W24
Haplotype Labs logo

Haplotype Labs

Personalized prevention using genetics and AI

We're building the HaploHub: a SaaS platform for genetic testing labs, concierge medical practices, and payer/providers to: * predict disease risk for their patients based on proprietary or publicly available genetic models * securely host, manage, and interrogate the genetic data of their population * generate reports and run the most common inference algorithms (phasing, imputation, ibd, etc.) without writing code

YC W24
Happenstance logo

Happenstance

People search powered by AI

Happenstance is people search powered by AI. For example, you ask Happenstance "find people who work on notification systems at big companies", and it comes back with two who follow you on Twitter and five who are connected to your partners. That kind of thing you just can't do on LinkedIn.

YC S18
HappiLabs logo

HappiLabs

Virtual Lab Managers for scientists and biotech, research Labs

We're a SaaS company with emphasis on Service, and we have a mission: to improve the happiness of scientists and the quality of their research. HappiLabs provides a service called the Virtual Lab Manager. We offer PhD level, former scientists to help with safety and regulatory, product research, lab shopping, negotiating, purchasing, inventory, and bookkeeping. Our software tools, such as the ETA Dashboard and the HappiApp, make it easy to request purchases, manage inventory, and check-in packages upon delivery. HappiLabs also has one of the most extensive databases of product prices. These tools, and experienced humans, make us the smartest lab managers in the world. Another way to think of us is an outsourced purchasing department and/or a personal assistant for your scientists. Based in Chicago, and some presence in San Francisco. If you're a newly funded PI, a startup, small biotech, or work with purchasing as a big pharma/biotech, you can use our help.

YC W22
Happl logo

Happl

Your personalised benefits and engagement platform for global teams

Happl - Personalised benefits for employees to choose what’s right for them, and tools for managers to engage their teams, whilst we take care of all the compliance and admin. Founded in 2020 and based in London, UK, Happl works with some of the UK’s leading employers to bring their hybrid working culture to life! https://www.happl.com/

YC S23
HappyRobot logo

HappyRobot

AI Communication. Built for Logistics.

Happyrobot's voice AI agents automate inbound and outbound phone calls in the logistics industry. Freight brokers, 3PLs, carriers and other enterprises connect their information systems to our AI agents to handle check calls, load updates, payment status, appointment scheduling or even sales negotiations.

YC W25
Harbera logo

Harbera

AI Healthcare Provider Credentialing Software

Harbera helps clinic keep their doctors credentialed and compliant. Our AI software continuously monitors and proactively helps admin teams re-credential doctors, preventing denied claims, disruptions in patient care, and lost revenue caused by doctors falling out-of-network.

YC W22
Harmoney logo

Harmoney

Agentic AI solution for fixed income, credit and portfolio analysis

Harmoney is an agentic AI solution for fixed income research, portfolio optimization, and credit analysis for buy-side and wealth managers. We not only make financial analysis faster and cost-effective but also unlock things that could not be done manually before.

YC S21
Harmonic Discovery logo

Harmonic Discovery

Multi-targeted therapeutics to treat complex diseases

We are a drug discovery company developing a new generation of therapeutics that embrace the complexity of disease. Currently available approaches for creating drugs work on the principle of finding one drug-one protein 'magic bullets'. However, diseases such as cancer and autoimmunity are often the result of several dysregulated proteins across many distinct biological pathways. We are building a computational-experimental platform to design therapeutics that can target several disease-causing proteins at once. By designing multi-specific drugs, we are able to create therapeutics that are more efficacious and safer than existing medicines.

YC W25
Harper logo

Harper

AI-native commercial insurance brokerage

At Harper, we are building a fully autonomous commercial insurance brokerage powered by AI. Our initial focus is on mid-sized businesses with complex insurance needs, but our vision is to eventually serve every business in the country. By leveraging AI to automate key workflows in the insurance process, we efficiently secure optimal coverage for each client's unique requirements at competitive prices and with rapid turnaround. Our AI system learns from the expertise of our brokers, accumulating not just knowledge but also the specific workflows, data, and capabilities that pave the way to full autonomy.

YC W19
Hatch logo

Hatch

The AI CSR Platform

Build Ai Agents to communicate with your customers over voice, email and sms.

YC W24
Hatchet logo

Hatchet

Background task orchestration and visibility

Hatchet abstracts away the infrastructure for managing task queues and message brokers, so you can focus on writing your background task and workflow logic. With Hatchet, you can run slow OpenAI requests in the background with async tasks, chain complex tasks together into workflows, and set retries and timeouts to recover from failure.

YC S19
Hatchways logo

Hatchways

We make engineering interviewing look more like real work.

Easily customize GitHub-based technical assessments, where candidates can complete tasks like reviewing code, submitting a pull request, or improving a system’s design. Hatchways helps you build a state-of-the-art practical interview process that is customized to your role while saving you engineering interview load along the way.

YC S14
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HauteDay

Gaming Meets Women's Shopping.

A community that finds the best new items in fashion. Each day, HauteDay focuses on a specific fashion theme that our community then organizes into a shoppable collection. One of the most exciting aspects to HauteDay is that we are bringing attention and customers to some of the most innovative and up and coming fashion brands from around the world.

YC W23
Haven logo

Haven

AI workforce for property management

Haven is building AI Agents to automate property management operations. Our first Agent is automating the maintenance coordination process. This means answering the phone when tenants have a maintenance issue, diagnosing the issue, dispatching a technician, and then following up with tenants to make sure the issue is resolved.

YC W20
Haven logo

Haven

Homeownership reimagined for the 21st century.

Haven is re-imagining the $11 trillion U.S. mortgage industry, with a focus on engaging the 53 million homeowners with a mortgage. The incumbent technologies used by mortgage lenders and servicers are decades old, and the borrowers who are served by them increasingly demand modern digital experiences and frictionless financial products throughout the home journey. Haven’s mission is to deliver them at a transformational scale, and to improve lives in one of the world’s largest asset classes. The company is well capitalized and backed by top fintech and mortgage venture funds and led by seasoned veterans of tech startups and financial marketplaces.

YC W21
Haystack logo

Haystack

Delivery Analytics for Software Teams

We are bringing the competitive advantage data-driven engineering teams like Google have - to everyone else. Our analytics platform plugs directly into developer tools like Github to provide insights on delivery speeds, bottlenecks, and risks that impact team velocity & developer happiness. We're trusted by some of the world’s most innovative teams: Microsoft, The Economist, and Indiegogo and backed by Y Combinator, Soma Capital, Funders Club, and strategic angels (Founder @Optimizely, SVP Sales @Amplitude) . Haystack is a culture of tinkering, learning, testing and iterating. We ship quickly and help our customers do the same. We're led by founded by two technical founders who have experienced this problem first-hand after scaling their startups from 0 to 100m+ users.