Y Combinator Summer 2018 (S18) Companies

1 investor

Grin operates a micromobility and payments service across seven Latin American countries, including Brazil, Mexico, and Colombia.

2 investors

Happilabs provides Virtual Lab Manager, a tech-enabled service that handles lab procurement, supplier relations, spend tracking, and EH&S compliance for pharma and biotech R&D teams. The service allows scientists to focus on research while dedicated support manages vendor sourcing, purchase orders, invoicing, and regulatory documentation.

1 investor

Helicarrier operates two platforms: a remittance application for African diaspora members to transfer funds to family and friends in Africa, and a cryptocurrency exchange for buying, selling, and managing digital asset holdings.

2 investors

HepaTx develops stem cell-based hepatocyte therapies for liver disease treatment as an alternative to organ transplantation. The company targets niche liver disease indications including alpha-1 antitrypsin deficiency, phenylketonuria, and non-alcoholic steatohepatitis.

2 investors

HeyDoctor offers remote primary care consultations through a mobile app and website, handling common medical needs like birth control refills, UTI treatment, and acne care without requiring insurance, video calls, or lengthy appointments. The service operates in 13 U.S. states and charges under $20 per visit, with asynchronous messaging access to physicians.

2 investors

Honeylove designs and manufactures women's shapewear and undergarments with carefully engineered construction and high-quality fabrics. The company focuses on creating products with precision fit, support, and durability for consumers.

5 investors

A platform that helps property owners and investors obtain commercial real estate financing through an online brokerage interface.

1 investor

iLabService provides infrastructure for regulated laboratories to capture, govern, and audit physical evidence from lab operations. The platform integrates environment monitoring, equipment utilization, inventory, samples, compliance, and audit trails into a single system serving labs requiring regulated operations and compliance management.

1 investor

Impactive provides digital organizing technology including texting, phone banking, relational organizing, and voter registration tools for progressive campaigns, advocacy organizations, nonprofits, unions, and electoral campaigns.

1 investor

INKHUNTER is a mobile application using augmented reality to let users preview tattoo designs on their skin before purchasing them.

1 investor

Inokyo provides cashierless checkout technology for physical retail stores.

1 investor

Inscribe builds an AI-powered document fraud detection platform for financial institutions, banks, and fintechs to identify and prevent fraudulent applications. The company uses agentic AI agents that are continuously trained to detect fake documents and stay ahead of evolving fraud tactics.

4 investors

Ixora provides software tools that generate digital outdoor environments and landscapes for film production.

1 investor

JITX develops software to automate hardware and circuit board design for electronics companies. The platform uses algorithms for physical design automation to help teams design better electronics.

3 investors

Khatabook provides a mobile app that allows business owners to digitally record customer credit and debit transactions, replacing paper ledgers; the platform also offers access to lending services and is designed for small businesses managing customer accounts.

16 investors

Kinside builds a platform to connect families with child care providers, offering transparent provider data, real-time openings, and virtual tours. The platform serves families, employers, child care providers, and government agencies.

6 investors

Klarity builds software that captures and structures enterprise decision-making, tribal knowledge, and process exceptions that typically remain undocumented, enabling continuous organizational transformation. The platform targets mid to large enterprises seeking to accelerate and automate adaptation to change.

2 investors

Kobo360 operates a platform connecting manufacturers and cargo owners with truck operators for freight movement across Africa, using data analytics and AI to optimize routing, reduce delivery inefficiencies, and provide supply chain visibility.

4 investors

Kunduz provides personalized tutoring to students through a combination of vetted tutors and AI, available 24/7. The platform serves students seeking individualized learning support across any course subject.

4 investors

Labelflow is a release operations platform for independent music labels that automates workflow management, artist communications, metadata handling, and distribution coordination. It serves independent record labels as an alternative to spreadsheets and manual processes, consolidating tasks around release management, artist onboarding, and catalog administration.

1 investor

Leena AI develops agentic AI colleagues for enterprise operations, automating complex workflows across HR, IT, Finance, and Procurement systems for Fortune 500 companies. The platform includes a customizable AI Colleague Studio and voice-enabled AI coworkers that integrate with existing enterprise software.

7 investors

LemonBox uses artificial intelligence to analyze users' diet, health objectives, and biometric information to create customized daily supplement formulations, which it manufactures and ships monthly as personalized packets. The service targets individuals seeking nutrition tailored to their specific needs.

1 investor

4 investors