Verge is a privacy focused cryptocurrency. It was formerly known as DogeCoinDark and was rebranded to Verge Currency in 2016. Verge uses multiple anonymity-centric networks such as TOR and I2P. The IP addresses of the users are fully obfuscated and transactions are completely untraceable.
Verge is based on the Wraith Protocol that enables users to be able to send and receive payments privately across their blockchain with stealth addressing services and complete anonymity. The protocol provides an additional layer of IP obfuscation as well as the option to utilize stealth addressing services for transactions.

PIVX is a cryptocurrency that is focused on privacy, speed, and low transaction fees. It was originally called Darknet and was forked from DASH. PIVX has a strong focus on community governance.
PIVX (Private Instant Verified Transaction) uses a privacy-centric Proof-of-Stake consensus protocol that allows anonymous staking.

Loki is developing a privacy-focused blockchain that will enable private transactions and decentralized communication. The Loki blockchain will be complemented by Lokinet and SNApps. Lokinet will use onion routing to allow users to access the internet privately without revealing their IP address. SNApps are web applications that will be located inside the Lokinet, and will be resistant to censorship. The Loki network is powered by the LOKI coin. It has a Proof-of-Work (PoW) consensus mechanism. Service nodes, on the network, are paid to process transactions and route the network's traffic and messages.