Crypto Native Market Surveillance Provider, Solidus Labs, Secures $15M via Round Led by Liberty City Ventures  Crowdfund Insider. : Crypto-native risk monitoring and market surveillance provider, Solidus Labs, has announced that it closed a $15 million round, which came just six months after completing a $20 million A-round in May 2021. Liberty City Ventures is leading the investment round, which also includes contributions from Exor Seeds and GSR, one of the world’s leading cryptocurrency trading companies.