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Operon logo

Operon

YCombinator

Agentic data layer for manufacturing & process industries.

Operon is the data intelligence layer for heavy industry. We ingest the messy documents a plant runs on (P&IDs, schematics, datasheets, scans) and turn them into one structured, queryable model of the facility. On top of it, engineers query their plant in natural language and build agentic workflows for safety, compliance, and design.

San FranciscoSummer 2026ActiveComputer VisionManufacturingInfrastructureSan Francisco

Opez

YCombinator

Yelp for service pros.

Opez is dedicated to helping you discover exceptional service professionals. But who are these people, you might ask, and what are they like? Well, friends, let us tell you. To us, exceptional service professionals are individuals who consistently exceed your expectations in their line of work because they love what they do and because they love their customers.

ConsumerNew York City, NYMarketplaceReviews
Opkit logo

Opkit

YCombinator

AI phone calls for the US healthcare industry

Opkit uses AI to automate routine phone calls for medical practices, telehealth companies, and other leading healthcare provider organizations. Opkit's AI agent is capable of executing a wide-range of non-clinical phone call tasks, including Verification of Benefits, patient intake, and appointment scheduling, without human intervention. Opkit is HIPAA-compliant and SOC 2 Type 2 certified.

HealthcareNew York City, NYSaaSHealth TechDigital HealthHealthcareConversational AI
Opslane logo

Opslane

YCombinator

Verify AI-generated code before you ship it

Opslane verifies that AI-written code actually works. Opslane opens your app in a real browser, clicks through what the PR changed, and posts screenshots, video, and data checks as proof it works.

B2BSan FranciscoArtificial IntelligenceDeveloper ToolsOpen SourceEnterpriseDevOps

Opsolutely

YCombinator

Automated deployments for software teams.

The best way for businesses to ship software. Opsolutely empowers engineering teams to be more productive, inclusive, and collaborative by making the most challenging and chaotic part of their software creation process safe, easy-to-use, and friendly for every member of the team.

B2BSan FranciscoDevOps
Optic logo

Optic

YCombinator

Making APIs Developer-friendly

We help developers collaborate at scale and build better APIs. Optic’s open source tools makes it easy for developers to document API changes, review each other’s API changes during code review, and catch breaking changes before they reach production. **tl;dr** It’s version control but for behavior not code. We are taking the really successful ideas from Git / Code Review / CI and applying them to API descriptions and (future) other non-code artifacts. Engineers at [Snyk](https://snyk.io/) use Optic daily to make the new Snyk API great. Read their engineering blog: [Snyk's shift left approach to API development | Snyk](https://snyk.io/blog/snyk-api-development-shift-left/)

B2BNew York City, NYDeveloper ToolsOpen Source

Optilly/Installmonetizer

YCombinator

Fb ad optimization platform

Optimization of FB ads based on users attributes

B2BSan FranciscoMarketing
Optimizely logo

Optimizely

YCombinator

The first all-in-one operating system for marketing

At Optimizely, we're on a mission to help people unlock their digital potential. We do that by reinventing how marketing and product teams work to create and optimize digital experiences across all channels. With Optimizely One, our industry-first operating system for marketers, we offer teams flexibility and choice to build their stack their way with our fully SaaS, fully decoupled, and highly composable solution. We help companies around the world orchestrate their entire content lifecycle, monetize every digital experience and experiment across all customer touchpoints – all through Optimizely One, the leading digital experience platform that powers every phase of the marketing lifecycle through a single, AI-accelerated workflow. Optimizely has nearly 1500 employees across our 21 global offices and has 700+ partners. We are proud to help more than 10,000 businesses, including H&M, PayPal, Zoom, and Toyota, enrich their customer lifetime value, increase revenue and grow their brands. At Optimizely, we live each day with a simple philosophy: large enough to serve, small enough to care. Learn more at optimizely.com.

San FranciscoWinter 2010AcquiredMarketingSan Francisco
Opusense AI logo

Opusense AI

YCombinator

AI for Field Inspection Reports

Opusense AI automates field report writing for construction field inspectors. Instead of typing up notes at the end of the day, inspectors can now walk a site, speak observations aloud, snap photos, and let our AI assistant generate a detailed, organized report on-site and in real time. Combined, the founding team has over 15 years in the construction industry. Writing up these field reports used to take up at least 20% of the week. With Opusense, we cut that time by 5x. Our team combines deep construction experience with technical expertise, Roya has a PhD in civil engineering, and Michael has worked at multiple construction tech startups. Why hasn’t this been done before? Construction is slow to adopt new tech, and reporting is messy, photos, voice notes, and field notes all live in silos. Turning that into a clear, structured report requires real insight into how inspectors work and what clients need. Only now, with advances in AI, can we process unstructured data adequately to generate high-quality reports in real time. The opportunity is massive. Every inspection firm and contractor is struggling with documentation. Manual reports slow them down, create inconsistencies, and delay handoffs. We believe AI can do this better, and Opusense is proving it.

Real Estate and ConstructionToronto, Canada

Opzi

YCombinator

Q&A for businesses.

Opzi was a knowledge management platform, styled as a "Quora for the enterprise," that became the First Round Network.

ConsumerSan Francisco
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