YC’s latest companies span AI infrastructure, automation and physical-world systems

Monday, November 2, 2026

The latest from Y Combinator

YC’s 2026 startup directory is heavily concentrated in AI infrastructure and automation. YC’s current listings include 1,708 AI companies, 297 infrastructure startups and 95 automation startups. New Fall 2026 entries include Superserve, which provides isolated, persistent cloud computers for AI agents; Routant, a zero-trust access layer for agents; and Horizontal, which builds AI agents for factory operations. The listings show YC’s current portfolio extending beyond model development into the infrastructure, security and operational systems needed to deploy AI in real-world settings.

YC Startup Directory — AI

YC Startup Directory — Infrastructure

YC Startup Directory — Automation

The latest batch is also producing companies across physical infrastructure and hardware. Fall 2026 startup Kanopy is building a computer-vision operating layer for power lines, pipelines and railways, using video to identify risks and infrastructure condition across hundreds of miles. Other 2026 listings include AI-native phones, wearables and local-AI workstations, suggesting that YC’s recent company mix includes both software agents and new interfaces for using them.

Kanopy — YC company profile

YC Startup Directory — Consumer Electronics

HyLight is scaling its autonomous inspection platform after raising €13 million. The YC-backed company says its hydrogen airships collect LiDAR, imagery and methane data for infrastructure inspections, with AI detecting more than 50 defect types. Its hiring brief says the company plans to grow from four airships to 15, while expanding from current operations toward French national coverage in 2027 and worldwide coverage in 2028. The development matters because the company is hiring to build the cloud, data-processing and customer-facing systems required for that expansion.

HyLight — Software / Cloud / Data Engineer role

YC’s hiring marketplace shows continued demand for technical and go-to-market talent. Current listings span New York, Boston and India, including engineering, sales, operations and support roles at companies such as Blacksmith, Whatnot, FirstWork, Retell AI, SiPhox Health and Corgi. The pages provide a direct view of where YC companies are adding capacity, from cloud infrastructure and security engineering to customer support and commercial roles.

YC jobs — New York support and success

YC jobs — India operations

YC jobs — Boston support and success

Advice for early-stage founders

• Start with customer discovery. Talk to people who experience the problem, and ask about their current workflow, recent attempts to solve it, and what makes the problem costly or frustrating. Keep calls focused and time-boxed; one practitioner’s account describes using a bounded discovery-call format to respect both customer and provider time (LinkedIn).

• Build the smallest useful product. Choose one clearly defined user, one painful job, and one outcome your product can deliver. Remove features that do not help that user reach that outcome, then put the product in front of real users quickly.

• Prioritize by learning value. Rank work by the user problem it addresses, the evidence behind it, and how quickly you can test the assumption. Defer attractive but unvalidated ideas until you have stronger signals.

• Treat distribution as part of the product. Identify where your target users already seek advice, compare solutions, or do their work. Test one reachable channel at a time, make the value proposition specific, and track whether conversations lead to activation or continued use—not merely attention.

• Turn feedback into decisions. Record what users do, not only what they say they want. Group recurring problems, distinguish requests from underlying needs, and make one change at a time when possible. Then return to the same users and check whether the change improved their experience. This is general founder guidance, not a new Y Combinator development.