“The SD-WAN infrastructure market continues to be highly competitive with sales increasing 64.9% in 2018 to $1.37 billion. Incumbent networking vendors have leveraged their technological strengths and installed bases in routing and WAN optimization sales to lead the market, while numerous start-ups remain active. IDC finds that Cisco holds the largest share of the SD-WAN infrastructure market, fueled by its extensive routing portfolio that is used in SD-WAN deployments, as well as its Meraki portfolio and its SD-WAN management platform powered by technology it acquired from Viptela in August 2017. VMware, with its SD-WAN service powered by VeloCloud (which VMware acquired in December 2017), holds the second largest market share in the SD-WAN infrastructure market, followed by Silver Peak, Nokia-Nuage, and Riverbed.”
https://www.technologies.org/?p=4679