Skip to content
CapitalSea LTDInfrastructure & Security

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.

Target service availability
99.98%Target service availability
Contracted support coverage
24/7Contracted support coverage
Delivery and change control
ISO-alignedDelivery and change control
  • Multi-site connectivity

    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.

contact@capitalsealtd.com
Registered office
128 City Road
London, EC1V 2NX
United Kingdom
Company number
17425986

Your details are used solely to respond to this enquiry. See our Privacy Policy.