Y Combinator Winter 2016 (W16) Companies

Able Health provides a software platform that helps physician organizations manage value-based care programs, including calculating HEDIS and Medicare quality measures and engaging clinicians and health plans. It aims to simplify reporting administration and tie physician reimbursement to higher-quality care.

4 investors

Algoriz offers an AI-based algorithmic trading platform that lets users build trading algorithms by describing their strategies in plain English. It targets traders in the finance sector.

2 investors

AlphaFlow is a technology-driven investment manager that builds professionally managed portfolios of real estate bridge loans, buying 6-12 month fix-and-flip loans from non-bank lenders on single-family and small multifamily properties. It makes the fix-and-flip lending market accessible to institutional and smaller investors through data analytics and automation.

8 investors

AmberBox makes an indoor gunshot detection and response system that uses a patented tri-factor authentication method (percussion, audio, and infrared) to identify firearm discharges and automatically alert first responders. The system integrates with other security infrastructure such as cameras, access control, and mass notification systems, and is marketed for use in the United States.

2 investors

Anchor Health develops software, hardware, and operating solutions for distributed home health care agencies, networks, and providers.

1 investor

Apollo.io is a lead intelligence and sales engagement platform that lets sales professionals enrich, analyze, and prospect B2B contact data using a crowdsourced data model. It serves startups through large global enterprises as part of their go-to-market and sales workflows.

15 investors

Astranis designs, builds, and operates small geostationary communications satellites that provide dedicated, secure network connectivity to large enterprises, sovereign governments, and the US military. The company operates its satellites globally from its Northern California headquarters.

40 investors

Bonsai provides back-office software for small businesses and self-employed individuals to manage clients, deliver work, invoice and get paid, and track finances in one place. It serves freelancers and small teams in the business management and productivity software category.

6 investors

Boom Supersonic develops Overture, a supersonic airliner designed to fly at twice the speed of current airliners and run on sustainable aviation fuel, serving both civil airline and government/defense markets. The company also develops Symphony, the propulsion system that will power Overture.

44 investors

Bus.com operates a web app for chartering buses and organizing group travel to events and experiences across North America. It serves event organizers and groups looking to book and coordinate bus trips.

8 investors

Caper builds smart shopping carts that use computer vision, sensor fusion, and AI to let grocery shoppers add items and check out without cashiers. The technology is designed to retrofit into existing grocery stores to enable cashier-less retail.

6 investors

Carbic develops lightweight ultrasonic sensors that attach to pipes and stream raw data over cellular/satellite to its servers, where physics models, signal processing, and anomaly detection calculate fluid volume and speed. The system monitors high-throughput fluid systems to improve operations and reduce spills and theft for the oil and gas industry, water municipalities, and other high-volume fluid operators.

1 investor

Reddy Book is an online sports betting and live gaming platform offering cricket, football, and casino games with real-time odds and account management tools. The platform serves users across India seeking sports markets and live gaming experiences.

1 investor

Castle provides fraud detection software that blocks automated and human-driven account takeovers, fake accounts, and behavior that breaks a platform's policies. It serves online platforms and developers looking to secure user accounts.

7 investors

Chatfuel is a platform for building chatbots on Facebook Messenger, used to automate sales and marketing funnels, lead generation and nurturing, and customer support. Its customers range from small and medium businesses to large brands.

5 investors

Chillabit operates a live social feed where students share thoughts, questions, and stories. The service is positioned as a casual social app for college/student communities.

2 investors

Compgun makes sales commission software that gives sales reps and managers real-time tracking and insight into commission performance and pacing, replacing manual Excel and email workflows. It serves sales organizations managing commission plans and expenses.

1 investor

ConstructVR provides software for businesses to test, manage, and distribute VR and AR applications across multiple installations.

1 investor

Copia is a for-profit technology company that connects businesses with surplus food—such as food management companies, corporate cafeterias, universities, hospitals, grocers, and caterers—to nonprofits in need by arranging pickups, matching, and delivery. Its platform also provides data and analytics on surplus food, helping partners reduce waste, access tax savings, and lower emissions.

5 investors

Cover is a mobile app for Android and iOS that lets users insure items by photographing them and compares rates from partner insurance companies and brokers. It covers vehicles, phones, pets, jewelry, houses, boats, and tours for consumers.

9 investors

Daily provides real-time voice, video, and AI infrastructure for developers, offering cross-platform SDKs and global low-latency infrastructure for building voice and video AI agents. Its platform also supports traditional voice and video call integration alongside AI agent experiences.

10 investors

Deako makes modular connected light switches that homeowners can customize and upgrade without turning off power. The company offers smart lighting control systems aimed at making smart lighting accessible across budgets.

6 investors

Deepgram builds foundational voice AI technology that enables speech-to-text, audio intelligence, text-to-speech, and voice agent APIs for businesses to create natural voice interactions. The company serves enterprises and developers across multiple industries seeking to integrate advanced voice capabilities into their applications and customer experiences.

24 investors

dev/color is a non-profit organization that supports Black software engineers through mentorship, goal setting, and community events to help them enter the tech industry and advance into leadership roles. It works with members across their careers, from college through professional practice.

1 investor