Regions & Providers
Spheron sources GPU capacity from six providers across North America and Europe.
Provider Capabilities
| Provider | Instance Types | Volume Support | K8s Addon | GPU Tiers | Notes |
|---|---|---|---|---|---|
| Voltage Park | Dedicated, Cluster | NFS volumes (up to 64 TB) | Yes (Cluster only) | H100 SXM5: Cluster (InfiniBand 3.2 Tbps or Ethernet 100 Gbps) | Dallas TX, external NVMe |
| Verda | Spot, Dedicated | NFS volumes (up to 10 TB, multi-instance) | No | A100, H100 | EU (Finland 1/ Finland 2/ Finland 3) |
| Sesterce | Dedicated | No | No | Various | EU regions |
| Spheron AI | Spot, Dedicated | Block volumes (up to 50 TB, up to 10 per instance) | No | H200 SXM, H100 (SXM5/NVL/PCIE), A100 80GB (NVL/PCIE), L40S, L40, A6000, RTX 5090, RTX 4090, RTX Pro 6000, A4000 | Canada 1, Montreal 1, Norway 1, Oslo 1, US (Tier 3 DC) |
| Spheron ES | Spot, Dedicated | virtiofs shared volumes (up to 256 TiB, multi-instance) | No | B200 SXM6, H200 SXM5, H100 SXM5, L40S, RTX Pro 6000 | EU North 1 (Finland), EU West 1 (France), ME West 1 (Middle East), US Central 1 (US); Tier 3 DC |
| Massed Compute | Dedicated | No | No | RTX A6000, others | US regions |
Provider Details
Voltage Park
Voltage Park provides Dedicated and Cluster servers in Dallas, TX. Voltage Park is the only provider that supports:
- The Kubernetes addon for managed K8s clusters (requires a Cluster instance type with H100 SXM5 offers)
- Multi-GPU bare-metal in two networking variants: InfiniBand (3.2 Tbps) for maximum DDP/DeepSpeed throughput and Ethernet (100 Gbps) for standard multi-GPU workloads, both deployed as Cluster instances
- External NVMe drives for high-speed local dataset storage
- NFS persistent volumes for cross-deployment data sharing (up to 64 TB; 1 volume per instance)
Compliance certifications: SOC 2 Type II, SOC 2 Type I, HIPAA, ISO 27001.
Verda
Verda operates in EU regions across three Finland data centers: Finland 1, Finland 2, and Finland 3. It provides both Spot and Dedicated instances with NFS volume support.
Verda volumes (NVMe_Shared NFS type) support multi-instance attachment: a single volume can be mounted on multiple GPU instances simultaneously (unlike Voltage Park, which restricts a volume to one instance at a time). Each instance supports at most one shared volume.
Local storage for Dedicated instances: When deploying a Verda Dedicated instance you choose between two root-disk sizes: 500 GB (default) or 1 TB. Select 1 TB when your workload requires more local dataset or checkpoint space than the default provides.
Sesterce
Sesterce provides Dedicated GPU instances in EU regions with various GPU tiers (GDPR, SOC 2 Type II, ISO 27001 certified). Sesterce does not currently support volume mounting.
Spheron AI
Spheron AI provides on-demand and spot GPU instances across North America and Europe, sourced from Tier 3 data centers. Available GPU models include H200 SXM, H100 (SXM5/NVL/PCIE), A100 80GB (NVL/PCIE), L40S, L40, A6000, RTX 5090, RTX 4090, RTX Pro 6000, and A4000 across Canada 1, Montreal 1, Norway 1, Oslo 1, and the United States.
Startup scripts (cloud-init) are fully supported. Spheron AI volumes are block-device backed and can be created up to 50 TB per volume in the new regions, with up to 10 volumes attached to a single instance. See the Spheron AI volume mounting guide for setup. The size slider in the create-volume wizard adapts to the per-region storage ceiling.
OS images: 11 OS images are available, including Ubuntu 22.04/24.04, AlmaLinux 9, Debian 12, and CUDA-enabled variants (R535, R550, R570). The default is Ubuntu Server 22.04 LTS with CUDA 12.8 and Docker pre-installed.
SSH access: Port 22 opens automatically on every new Spheron AI instance; no firewall configuration is needed for SSH.
Spheron ES
Spheron ES (Extra Supply) provides on-demand and spot GPU instances across four regions: EU North 1 (Finland), EU West 1 (France), ME West 1 (Middle East), and US Central 1 (United States). Inventory currently spans B200 SXM6, H200 SXM5, H100 SXM5, L40S, and RTX Pro 6000, all flagged with the Tier 3 DC compliance badge.
Shared volumes use the virtiofs protocol and support multi-instance attach, in-place resize, and up to 256 TiB per volume. See the Spheron ES volume mounting guide for setup.
Massed Compute
Massed Compute provides Dedicated GPU instances in US regions (including Des Moines, IA) with RTX A6000 and other GPU configurations. Massed Compute does not currently support volume mounting.
Compliance certifications: HIPAA, SOC 2 Type II.
Region Selection Guidance
- Lowest SSH latency: Choose the provider and region geographically closest to you
- GDPR / EU data requirements: Use Verda (Finland, ISO 27001) or Sesterce (EU)
- H200 GPUs: Spheron AI (Canada 1, Montreal 1, Norway 1, Oslo 1, US) or Spheron ES (EU North 1, EU West 1, ME West 1, US Central 1)
- B200 SXM6: Spheron ES (EU North 1, EU West 1, ME West 1, US Central 1)
- Largest H100 bare-metal clusters: Voltage Park Dallas
- Shared persistent volumes: Voltage Park (1 volume per instance), Verda (multi-instance NFS attach within the same region), or Spheron ES (multi-instance virtiofs, up to 256 TiB per volume)
- Largest block volumes: Spheron AI (up to 50 TB per volume, up to 10 volumes per instance)
- Reserved GPU requests: Select "Any Location" when submitting reserved GPU requests to maximize provider competition and get the best price
What's next
- API Reference: Query available providers and GPU offers programmatically
- Instance Types: Spot vs Dedicated vs Cluster
- Kubernetes addon: Voltage Park K8s setup
- Volume Mounting: Shared storage for Voltage Park, Verda, and Spheron ES
- Reserved GPUs: Long-term GPU reservations