Cryptocurrency exchange CEX.io in his blog published a rating of Top 50 Blockchain Startups 2017.

Intro
There is no doubt that Blockchain is a revolutionary technology. The awareness about it grows day by day, with each adoption or implementation in businesses and organizations. Therefore, you either hop on or fall off the radar.

Top 50 Bitcoin and Blockchain Startups 2017
We are now watching a huge money inflow into the industry of distributed ledgers and a great potential of blockchain. No wonder, there are so many blockchain-related companies that came up with various decisions and implementations of this technology. We came with a list of the top startups to follow in 2017.

Start:

1. BitPesa
   

Total equity funding: $5.75m (BitFury Capital, Blockchain Capital, Colle Capital Partners, Digital Currency Group, Draper Associates, Future Perfect Ventures, Greycroft Partners, Pantera Capital, Stephens Investment Management)
BitPesa is enabling businesses to send payments and get paid in different currencies between Africa and the rest of the world using blockchain. They have already covered over 85 countries, 6,000 users and 17,000 transactions.

1. Provenance
   

Total equity funding: $65.48k (Wayra, 2013)
Grant: $200.61k (Technology Strategy Board, 2014)
Provenance provides a transparency solution for producers, brands, retailers, and shoppers. The startup allows tracking products and materials on a blockchain, which helps to bring trust in goods and supply chain.

1. Storj
   

Total equity funding: $4.8m (BnkToTheFuture, GVA Capital, Iterative Instinct, Qualcomm Ventures, Tank Stream Ventures, TechSquare Labs, Techstars)
Storj is an encrypted cloud storage, claiming to have high availability, distributed infrastructure and incredible performance due to the P2P technology. The software is free and open source.

1. Cambridge Blockchain
   
   Total equity funding: $2m (Digital Currency Group, Hub Angels Investment Group, LaunchPad Venture Group, Partech Ventures, River Valley Investors)
   Cambridge Blockchain is a startup offering simplification of identity compliance using blockchain. Their solution brings stronger compliance, lower costs and improved customer experience.

2. Hijro
   
   Total equity funding: $2.5m (500 Startup, ArchAngels, Crosscut Ventures, Digital Currency Group, Draper Associates, Fenbushi Capital, ff Venture Capital, KSTC, Lindbergh Tech Fund, SixThirty, Startupbootcamp, Startupbootcamp Fintech New York, Thomson Reuters, UMB Banks)
   Hijro is a network for business capital optimization with the help of powerful blockchain apps. It offers a marketplace for trading assets and is powered by blockchain.

The most interesting and complete list of startups in the source -- https://blog.cex.io/cryptonews/top-50-blockchain-startups-2017-16158

Thanks CEX.io this information and raiting.