On the same survey entitled, “Blockchain Enterprise Survey,” Microsoft came in second with 20% of the vote, followed by Accenture. Several factors were noted on the rise of IBM to the number one spot; however, most of them were credited to the use of Hyperledger and other research development efforts.
The code that Microsoft uses for deployment is more public and as such, whenever there are issues in the code, they automatically become public. The company has also shown a preference for the Ethereum Blockchain. For the full story see:
https://cointelegraph.com/news/ibms-future-blockchain-projects-may-give-new-meaning-to-its-name