HP Proliant is a brand of blade server, from Hewlett-Packard.
Lenovo now offers and supports BladeCenter blade servers and products, since acquiring the product line from IBM.
Bull Blade Servers are a product line of blade servers now from Atos, since the Bull acquisition in May, 2014.
SuperBlade, from San Jose based Supermicro, is a line of blade servers.
NEC's Sigmablade-M is a blade server option.
Hitachi's BladeSymphony is a line of blade servers.
Fujitsu's CX1000 is a line of blade server.
Fujitsu's PRIMERGY BX900 is a line of blade server.
HPE SGI 8600 is based on the SGI ICE is a blade server. Hewlett Packard Enterprise acquired SGI and its properties in 2016.
HP Integrity Superdome X is a blade server option, from Hewlett-Packard.
Hitachi Data Systems offers the Compute line of Blade Servers.
HP Integrity NonStop is a line of blade servers, from Hewlett-Packard.
Dell's PowerEdge C series is a blade server product line.
HP Integrity is a line of blade servers, from Hewlett-Packard.
Oracle's Sun Blade 6000 is a blade server option.
NEC's Sigmablade-H is a blade server option.
Dell's M-Series PowerEdge blade servers boast enterprise performance with scalability via features meant to accommodate current needs and future growth needs, such as multiple available form factors, modular I/O switches, and configuration via centralized chassis management controllers
Oracle Netra Modular System is touted as a converged, plug-and-play blade system supporting rapid scale and high interoperability.
HPE's Proliant ML is a line of tower servers for SMBs.
IBM System X is a tower server solution for SMBs.