Fondu - Open source free ICO smart-contract builder
Trust Wallet - Trust - Ethereum Wallet
thirdweb - thirdweb is an ecosystem of SDKs, dev tools, and dashboards that help teams build and manage web3 apps. Deploy custom or pre-built contracts to ETH, MATIC, AVAX, & more.
Coinbase - Bitcoin, safe and easy.
PAID Network - PAID network's SMART agreements will transform business
MetaMask.io - A crypto wallet & gateway to blockchain apps