This document provides 50 keys to startup success according to Ash Singh, CEO of Interactive SG. The keys include watching your cash, hiring generalists early and specialists later, investing in company culture, avoiding tempting distractions, supporting customers strongly, writing a blog, never fudging numbers, encouraging diverse thinking, guarding your time, deferring renting space, getting enough sleep, delaying raising capital, persisting through downturns, deciding with data, improving products daily, recognizing revenue consistently, starting to charge early, rewarding early adopters, selling something today, saying "no" often, accepting imperfect data, recruiting with zest, nurturing your best employees, treating vendors well, believing in yourself, respecting competitors