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We build software for secure content and media operations.

SIAL Networks develops Casewelt and SialFlow. Casewelt helps organisations control sensitive content. SialFlow runs programmable image, video and document workflows. For larger requirements, our engineering team builds the surrounding software and infrastructure.

Secure documents connected to image, video and document workflows
Secure content · connected workflows
SialFlow media workflow platform
SialFlow
Casewelt portal dashboard
Casewelt

Products

Products

Casewelt covers secure content for regulated organisations. SialFlow covers media and document processing. Start with the workflow you need to improve.

Casewelt · Secure content management

Secure content collaboration and information governance.

Store, share and keep control of business documents. Policy, retention, legal hold and audit stay attached to the same file your team already works on.

Share the document, not the workspace

  • Named external sharing
  • Retention & legal hold
  • Queryable audit

A typical use

Share an approved board pack with two named external auditors for a fortnight, pinned to one version, without opening the wider workspace.

Casewelt portal dashboard with usage and activity
Casewelt files console with versions and hold

SialFlow · Programmable media workflows

Image, video and document processing.

Resize, crop, reformat and compose images at request time. Heavier work such as bulk processing, video encoding and document extraction runs as durable jobs with quotas, retries and inspectable history.

Image · video · documents

  • Request-time image transforms
  • Durable background jobs
  • Job history & retries
SialFlow programmable media workflow visual
api.sialflow.com · job
POST /v1/images/{id}/bg-remove
{ "format": "png" }

→ 202 job kind=bg_remove
   poll GET /v1/images/jobs/{id}

Why SIAL Networks

Engineers who ship their own products.

The same people who build and run Casewelt and SialFlow take on selected client programmes.

We build our own products

Casewelt and SialFlow are developed and operated in-house, so product decisions and client work share the same engineering team.

Production engineering background

Both products grew out of systems that had to stay up: edge traffic, media delivery, security and day-to-day operations.

Software and infrastructure in one team

Architecture, application code, platform, security and migration can be covered without handing the work across organisational boundaries.

Engineering

Engineering

Complex software and infrastructure projects where application, platform, security and migration need one delivery team.

Software engineering

APIs, backends, integrations and the business systems around them.

Platform & cloud

AWS, Azure and hybrid environments, automation and infrastructure as code.

Security engineering

Edge protection, WAF, hardening and security architecture around real workloads.

Media systems

CDN and streaming delivery, edge caching and image and video processing paths.

Selected work

Selected work

Edge & WAF platform

Multi-node traffic management with WAF, TLS termination and automated health checks.

Technology: Nginx, HAProxy, WAF, TLS.

Streaming delivery

Live and on-demand HLS with edge caching and CDN integration for a high-traffic catalogue.

Technology: Nginx, HLS, CDN.

Hybrid cloud migration

Phased move from on-premises infrastructure to AWS and Azure, with each cutover reversible.

Technology: AWS, Azure, Terraform.

FAQ

FAQ

Where is SIAL Networks based?

SIAL Networks Limited is registered in England and Wales, company number 13552665. Registered office and correspondence addresses are on the About page.

Company details →

Can we see Casewelt or SialFlow before committing?

Yes. Send one workflow you want to improve and we will walk through it on the live product rather than a generic demo script.

Can you work alongside our own engineers?

Yes. Engagements are scoped around environments we can observe and operate with your team, and ownership of the system stays with you.

Engineering →

Work with us

Tell us what you’re looking at.

A Casewelt or SialFlow walkthrough, a product question, or a scoped engineering job. You’ll hear back from people who build and run these systems.