ZeptoVM is a German budget VPS provider offering KVM virtualization, all-SSD storage, and 10Gbps ports, with data centers in Germany and Finland and entry plans from around $2/month.
Wishosting is a Bulgarian low-cost European VPS provider with KVM VPS from ~€2.49/mo, data centers in the Netherlands, Germany and the US, and built-in DDoS protection for budget-conscious developers.
RootLevel, founded in 2014, is a Dutch low-cost VPS and dedicated server provider with KVM VPS from €2.5/month and bandwidth up to 1Gbps, operating a Netherlands data center connected to the European backbone for budget-focused European businesses.
CloudCone is a budget VPS provider under US-based QuadraNet with hourly billing, plans from about $2/month, a Los Angeles data center, and Alipay support — ideal for budget-constrained developers and test environments.