Y Combinator Summer 2012 (S12) Companies

RevSense is a machine learning platform that automates ad stack optimization and yield management for publishers through real-time parameter adjustment, tag management, and header bidding. It aggregates data from ad servers and demand partners to optimize ad performance across multiple variables without manual intervention.

1 investor

Natero provides a customer success platform for B2B SaaS companies that combines analytics, customer intelligence, and workflow automation to help teams reduce churn and increase account expansion.

1 investor

NewsBlur is a news reader and content aggregation platform that trains on user preferences to deliver personalized news feeds from any website with RSS or webpage monitoring. It offers native mobile apps, AI-powered summarization and analysis, full-text search, and real-time notifications for subscribers.

1 investor

Octave Wealth provides low-cost retirement plans with bespoke investment solutions for employees and employers. The company aims to address America's retirement savings gap by reducing fees and administrative burden for workplace retirement programs.

1 investor

OmniVirt operates an advertising platform that delivers immersive 360-degree video content to brands and publishers, accessible on smartphones, tablets, and websites without requiring app downloads or headset hardware. The company serves advertisers and publishers globally across mobile and web formats.

1 investor

Parallel Universe provides tools and infrastructure for writing correct software, focusing on the fundamental challenges of program correctness through computational theory.

1 investor

Pixate provides a runtime engine for iOS that lets designers and developers style native mobile applications using CSS, with support for vector graphics and live style updates.

2 investors

Plivo provides an enterprise communication platform combining AI agents with APIs for messaging and voice functionality, serving businesses that need to engage customers at scale across 190+ countries globally.

1 investor

Profig offers a phone system for businesses that includes call transcription, tracking, voice broadcasting, and CRM integration capabilities.

1 investor

Rainforest QA is an AI-powered, no-code testing platform that automates quality assurance for software development teams. It helps teams protect critical user flows, generate maintainable tests, and reduce manual QA work to ship software faster and with greater confidence.

7 investors

A platform that enables users to extract, save, and distribute short video clips from any website, facilitating a network where individuals curate and exchange relevant content with their peers.

1 investor

RegistryLove provides a centralized platform where couples can compile wedding gift registries across both large retailers and independent stores, allowing them to gather items and experiences from multiple sources in one place.

1 investor

Scoutzie is an AI-powered MVP agency that builds minimum viable products for founders, leveraging artificial intelligence to accelerate development timelines from months to weeks. The company serves early-stage founders and startups looking to validate ideas and get products to market quickly.

1 investor

Fisher Investments is a global money management and financial advisory firm that provides portfolio management, financial planning, and retirement planning services primarily to high-net-worth individuals and institutional clients. The firm manages investments across equities, fixed income, and blended accounts using an active, forward-looking investment approach.

8 investors

Soylent makes nutritionally complete meal replacement products designed to provide protein, carbohydrates, fats, and essential micronutrients. The company serves consumers seeking convenient nutrition and operates a food and wellness business with environmental and social impact commitments.

2 investors

A web application that performs statistical analysis and presents results in straightforward language rather than technical terminology.

1 investor

Frontdoor provides technology-enabled home maintenance and repair services for homeowners, leveraging over 50 years of industry experience.

4 investors

Study Edge provides expert-led tutoring sessions, mock exams, and personalized academic support to help students improve their grades. The platform serves secondary and higher education students seeking to boost their GPA through structured test preparation and subject-specific guidance.

2 investors

Submittable is a platform for managing grant applications and fund disbursement, serving nonprofits, foundations, and government agencies that administer grants and programs.

7 investors

Svbtle is a publishing platform for writers to organize, develop, and share articles and ideas. The platform emphasizes a distraction-free writing and reading experience with a focus on design and content preservation.

1 investor

Tastemaker is an online marketplace that connects customers with interior designers and sells home furnishings and decor.

1 investor

Testmunk provides remote access to a cloud-based collection of physical Android and iOS devices for mobile app testing across different operating system versions and device types. The service allows developers to test native and hybrid applications without purchasing hardware.

2 investors

Thread was an AI-powered personal styling service that combined artificial intelligence with expert stylists to provide clothing recommendations for men and women. The company has ceased trading after being acquired by Marks & Spencer in 2024.

3 investors

TomoGuides builds offline travel guides for iPhone users that work without an internet connection. The guides are free and cover destinations for travelers seeking detailed location information.

1 investor