Here’s a non-exhaustive list of all the bitcoin startups. Click on the link to read an overview of the company/product.

Localbitcoins

Bitpay

Coinbase

Kraken

BTCjam

Protocol Labs

Blockstream

Reveal

LedgerX

Case

GoCoin

Korbit

Bitaccess

BlockCypher

21.co

Abra

Maicoin

Hashfast

SFOX

ChangeTip

BitGo

Ripio

SABR.io