Enterprise IT Infrastructure & Secure Network Solutions
Enterprise-Grade Network Infrastructure & IT Consulting
CapitalSea LTD designs, integrates and operates the infrastructure that enterprise workloads depend on — from core network architecture and secure remote access to bespoke engineering delivered under contract.
Routed, segmented and monitored networks across data centre, cloud and branch estates.
Zero-trust by design
Identity-aware access controls, encrypted transport and least-privilege segmentation.
Operational continuity
Resilient architectures engineered against measurable availability targets.
Services
Infrastructure engineering across the full delivery lifecycle
We work as a contracted engineering partner: assessing the current estate, designing the target architecture, delivering the change, and supporting it in production.
System Integration
Unify fragmented platforms into a coherent, observable and maintainable estate.
Legacy-to-cloud migration and hybrid interoperability
Identity, directory and API integration
Monitoring, logging and centralised observability
Structured cutover and rollback planning
Secure Network Architecture
Segmented, encrypted and continuously verified networks built to withstand scrutiny.
Zero-trust segmentation and policy design
Site-to-site and remote access encryption
Firewall, routing and edge hardening
Resilience, failover and capacity planning
Custom Software Development
Engineering delivered to specification, under contract, with maintainable handover.
Internal tooling and workflow automation
Secure service and API development
Infrastructure-as-code and deployment pipelines
Documentation, testing and knowledge transfer
Products
Proprietary utilities developed for contracted deployments
Our internal engineering output is made available exclusively to organisations we hold a service relationship with. These utilities are not consumer products.
RayX VPN
Secure Client Access Utility
RayX VPN is a proprietary secure client access utility developed and maintained in-house by CapitalSea LTD. It provides encrypted, policy-controlled connectivity between authorised endpoints and the corporate networks we operate or integrate on behalf of our clients.
Provisioning notice
Access is strictly provisioned for authorized corporate clients via external contracts. No public subscriptions available.
Enquiries regarding provisioning are handled through our commercial team as part of an existing or prospective service agreement. The utility is not distributed through public application stores or self-service channels.
Utility characteristics
Encrypted client transport
Hardened tunnelling between provisioned endpoints and client-controlled corporate networks.
Contract-bound provisioning
Credentials are issued per named user against an executed service agreement, and revoked on termination.
Auditable access records
Session and provisioning records retained to support client compliance and review obligations.
Distribution
Contract only
Availability
B2B clients
Company
A UK-registered engineering partner for regulated environments
CapitalSea LTD operates as a business-to-business infrastructure practice. We are engaged directly by client organisations, under contract, and work inside their governance and change-control processes.
Registered entity
CapitalSea LTD, registered in England and Wales under company number 17425986.
Registered office
128 City Road, London, EC1V 2NX, United Kingdom
Contract-first engagement
Every deployment, integration and access grant sits under a signed statement of work with defined scope and acceptance criteria.
Senior engineering only
Work is delivered by the engineers who designed it. No layered handoffs between the architecture and the implementation.
Documented handover
Clients receive architecture documentation, runbooks and configuration state — the estate remains operable without us.
Contact
Discuss a requirement with our engineering team
Tell us about the estate, the constraint and the timeline. Enquiries are reviewed by an engineer, not a call centre, and answered within one business day.
Direct contact
Prefer your own mail client? Write to us directly and include your organisation name.