UniPayGateway - Ultimate payment gateway software for merchants, ISOs and PSPs. Full range of payment gateway capabilities. Functionality rich open source payment system.
Breue - Breue - Build and launch your product in 4 weeks
Tap2Pay - Tap2Pay is the platform for accepting online payments in all online channels: a website, social media (Facebook, Instagram, Youtube), messengers (Facebook, Telegram, Viber). It provides smooth and secure, omnichannel buying.
Upwork - Forget the old rules. You can have the best people. Right now. Right here.
PayKun - Power your online business in India with PayKun payment gateway, start accepting payments via all debit/credit cards, net bankings, upi, payment links, invoices
IssueHunt - IssueHunt is a crowd funding service for opensource contributors and owners!