Tiffani Ashley Bell

VetPronto — Uber for vets. On-demand veterinary service.

Amazon Machine Learning — Machine learning made easy for developers of any skill level

Detroit Water Project — Connects donors to unpaid water bills

YesGraph — Boost viral growth by recommending who users should invite

Spark Gift — Give the gift of stocks and index funds to friends & family

Tender by Nomiku — Sous vide recipe app that also controls sous vide machines

Cinder — Part sous vide, part sous-chef

Smarking — Data Analytics for Parking

Lully — Parents, sleep through the night. Every night.

YC Female Founder Doodles — Doodle notes from YC's Female Founders Conference

Luka — A.I. recommending restaurants in SF in a chat interface

YC Startup Class — A live, one-hour class by Sam Altman on Platzi

Magic — Get whatever you want on demand with no hassle, through SMS

Kuhcoon — Fully automated, performance-driven Facebook ad campaigns

Pakible — Custom packaging, made simple. 10 boxes for $10

Final — Never worry about fraud, breaches, or cancelled credit cards

Nomiku Sous Vide — Cook perfectly with every top chef's secret weapon

Valor Water Analytics — Utility Tools for the Future of Water

Donors Choose — Donate to specific classrooms in need

Code 2040 — Experience, confidence and connections for minority students