Y Combinator Winter 2018 (W18) Companies

1 investor

Acely provides an AI-powered SAT prep platform with personalized study plans and true-to-test practice materials for students seeking alternative to traditional prep courses and tutoring. The platform offers efficient study tools, progress tracking, and access to thousands of practice questions and full-length tests.

1 investor

Aerones provides robotic inspection, cleaning, coating, and repair services for wind turbine blades. The company serves wind park operators in the renewable energy sector.

10 investors

AesculaTech develops smart materials that change properties in response to temperature and other stimuli, applying this platform to biomedical, industrial, and cosmetic products. Its first product, Humidifeye, is a smart-gel punctal plug for dry eye treatment, alongside research into patient-adaptable medical hydrogels, high-strength films, and composites.

1 investor

AlgoSurg develops AI planning and automation software for surgical workflows, serving implant OEMs, robotic surgery systems, navigation platforms, and 3D printing companies. The platform automates surgical planning, segmentation, and landmarking to accelerate procedure workflows and improve accuracy.

1 investor

Anjuna develops software for secure data sharing and confidential computing in cloud and AI environments. The company serves enterprises seeking to protect data while leveraging cloud and artificial intelligence capabilities.

9 investors

ArchForm provides clear aligner devices for orthodontic treatment, offering customers cost savings compared to alternative aligner companies.

1 investor

Aspire provides corporate account and card solutions for businesses with complex operations, offering relationship management and an online platform for employee spending oversight.

6 investors

Assembly provides a branded client portal for professional service firms to manage clients, contracts, and billing. The platform serves accounting, real estate, law, marketing, and tech firms, offering AI-powered back-office tools, messaging, file-sharing, invoicing, and eSignature capabilities.

3 investors

Atrium provides legal services to startups through a technology-enabled platform that replaces traditional hourly billing with performance-based compensation and software tools designed to increase operational transparency and efficiency.

1 investor

Avro Life Sciences develops platform technology for novel drug delivery through passive transdermal administration. The company operates in the biotech sector, focusing on dermatological and systemic therapeutics.

6 investors

Beanstalk operates vertical farms using robotic and automated systems to grow leafy greens, herbs, root vegetables, and other produce for supply to restaurants and consumers, combining industrial robotics with horticultural science to enable local production of fresh vegetables.

3 investors

Bear Flag Robotics developed autonomous technology for farming before being acquired by John Deere in 2021.

11 investors

Ben is a mobile app that combines cryptocurrency trading and storage with educational content, including news and investment guidance for beginners.

1 investor

Biobot pioneers wastewater epidemiology, monitoring pathogens and substances in sewage to provide real-time public health surveillance at the community level. The company serves public health agencies, vaccine manufacturers, and hospital systems globally.

9 investors

BioRender is a software tool that enables scientists to create and share professional scientific illustrations and figures. The platform serves researchers and scientists across life sciences disciplines globally.

4 investors

Blueberry Pediatrics provides 24/7 telemedicine consultations with board-certified pediatricians for families, supplemented by an at-home diagnostic kit to expand diagnosis capabilities and reduce urgent care visits.

6 investors

California Dreamin makes cannabis-infused beverages as an alternative to alcoholic drinks.

1 investor

CaptivateIQ provides a modern platform for automating commission and compensation management, helping companies align incentives with revenue outcomes. The platform serves sales-driven organizations looking to improve ROI on incentive programs and support sales rep motivation and performance.

8 investors

ClearBrain develops an AI analytics platform that helps growth teams identify optimal timing for user engagement and personalization at scale. The platform enables companies to make data-driven predictions about user behavior for marketing and purchasing decisions.

2 investors

A mobile platform that enables professional athletes to broadcast content directly to audiences.

1 investor

New Relic provides an enterprise-grade platform for designing, deploying, and managing AI agents in production environments with built-in governance and observability. The platform enables AI agents to reason dynamically across live telemetry data and operational systems for incident resolution and agentic workflow automation.

3 investors

Cognition IP provides fixed-fee intellectual property protection services for fast-growing enterprises and startups, combining legal expertise with technology to handle patent, trademark, and copyright matters.

1 investor

CoinTracker is a cryptocurrency tax software platform that automatically imports transactions from wallets and exchanges to calculate gains, losses, and generate IRS-ready tax reports for US investors.

2 investors