HyperBigCo Hal
Twenty percent of your revenue, in one customer. Pays cheap because he's huge. Will personally fly to your DC to give you stick about uptime.
Operational profile
Vms 20-40 × 8 vCPU/32 GB, 500-1500 GB block @ 8k IOPS Diurnal. Platinum SLA, PCI required, always-reservation (12mo, 25% off). $50k signup. Hyperscale-only.