ConvergeOne Acquires SIGMAnet, An IT Consulting Firm And Managed Services Provider ConvergeOne Acquires SIGMAnet,  An IT Consulting Firm And Managed Services Provider Reviewed by Erwin Castro on December 12, 2015 Rating: 5
About the Author: Erwin Castro is a freelance tech writer, digital marketer, and web developer. He has written for online publications including Seeking Alpha, IB Times, Blasting News, Sportskeeda, and University Herald.