Hadrius will prevent the next financial crisis by building the automated back office for financial firms, using AI to analyze millions of data points from emails to text messages, marketing copy, investment accounts, filings, and more to identify regulatory violations.

Halfpricesoft has quietly dominated the small business payroll and tax compliance space for 20 years. We are a profitable, bootstrapped company with thousands of customers and a massive track record of stability.

Building a flexible AI-driven workspace.

Hammock is building the first HSA/FSA that actually works for modern life — letting people spend pre-tax dollars on everyday wellness like the gym, recovery, and prevention. Backed by a16z Speedrun, and others.

Happenstance exists to create 10x more of this kind of luck in the world. Backed by Garry Tan and Elad Gil, we've built the world's best AI person search by a wide margin. No more keyword search; just describe the kind of person you're looking for. We're already used by 1000+ YC alums to accelerate their customer development, sales, and fundraising.

Happy Returns is solving one of e-commerce’s biggest pain points: returns. We combine proprietary returns software with reverse logistics, including box-free consolidated returns, to make returns better for shoppers, retailers, and the planet. We’re a UPS company, growing quickly, and our shopper experience has a 93 NPS.

At Happy Scribe we think audio & video should be universally accessible. We want to scale high-quality subtitles & dubbing with a multi-player editing experience that combines state-of-the-art AI with a global marketplace of proofreaders. 100% bootstrapped and profitable, we have a product used by +400k/mo users with high 7-digit revenue.

Hardfin is a B2B software platform for equipment manufacturers that enables them to track their assets and manage projects for their hardware.

We're building a regulatory intelligence platform for AI in healthcare. In effect a specialist dataset + search engine for that information. Currently working to get from a Beta to production ready.

Harmony Intelligence is building a defensive AI AppSec agent to protect mission-critical software from AI cyberattacks. They have recently raised $3M for this purpose.