Development partner for companies and agencies

We build the software. You run the business.

Custom software, web applications and websites — designed, developed and supported by one in-house team.

Written specification · Fixed estimate · No lock-in

Technologies we work with

  • Python
  • Node.js
  • PHP / Laravel
  • React
  • Vue
  • TypeScript
  • PostgreSQL
  • MySQL
  • REST & GraphQL APIs
  • Docker
  • AWS
Why Solid Source

Software that fits the way your company works

We build systems around how your business actually works — and stay responsible for them after launch.

Fixed scope

Every project starts with a written specification, timeline and estimate.

Same team

The developers who scope your project are the ones who build it.

Long-term support

Monitoring, updates and fixes with agreed response times.

Services

Six services, one in-house team

Order the full cycle from specification to support, or only the part you need.

New order
Approval
Notify

Custom software development

Internal tools, CRM and business-process systems built around your workflows.

Orders1,284
Synced98%
Avg. time2.4h

Web application development

Client portals, dashboards and booking systems that run in any browser.

Website development

Corporate and product websites: design, front-end, back-end and CMS.

Software integration

CRMs, payments, accounting and APIs connected — no manual re-entry.

Your platformOperational
30 days ago99.9% uptimeToday

Technical support and maintenance

Monitoring, updates and fixes under a monthly plan with agreed response times.

Web portals and digital products

Multi-user platforms, catalogues and content portals, from prototype to release.

Solutions

From specification to a working product

We take responsibility for the whole chain — and work with agencies as their development team.

A client portal, end to end

Requests arrive through your site, sync with the CRM and show up on a live dashboard — without manual work.

Live dataConnected toolsRoles and access

Development partner for agencies

We work as the technical team behind digital and marketing agencies — building, integrating and maintaining their clients' projects.

Process

How a project runs with us

CRMPaymentsAccountingWebsiteEmail
Specification approved
01

Specify and design

We study your processes and agree scope, architecture, timeline and cost in writing.

When does the dashboard ship?
Thursday. CRM sync and the request form already passed QA.
Sprint 4Staging
02

Build and integrate

Short iterations, working versions every week, connected to the tools you use.

Launch checklist
Tests passedDone
Deployed to productionDone
Support plan activeToday
03

Launch and support

We deploy, hand over documentation and keep the system running.

Less time explaining what you need. More time running what we built together.

Clients

Who we build for

For growing companies

Replace spreadsheets and disconnected tools with one system built around your process.

Typical project
Audit
Spec
Internal CRM

For digital agencies

We work as the development team behind your clients' websites, portals and integrations.

Typical project
Brief
Build
Client launch

For product teams

Ship a web application or MVP with a team that stays on for support and growth.

Typical project
Prototype
MVP
Release 1.0
About

A software company since 2016

We design and build custom business systems, web applications and websites, and maintain them after launch.

+18
Developers, designers, QA and project managers in one team
360kHours of work delivered
7+Years in software development
25+Dedicated specialists
10+Products developed
6Long-term clients on support
FAQ

Frequently asked questions

Can't find what you need? We reply within two business days.

Contact us
What does Solid Source do?

We design, build and support custom software, web applications and websites for companies and for digital agencies that need a development team.

How does a project start?

With a short call and a written specification. You get a fixed scope, timeline and estimate before any development begins.

Do you work with agencies?

Yes. We often act as the technical team behind digital and marketing agencies, building and maintaining their clients' projects.

Who owns the code?

You do. Source code, documentation and access are handed over at launch, with no lock-in to our team.

What happens after launch?

We offer monthly support plans with monitoring, updates and agreed response times, so the system keeps running.

Where is the company based?

Solid Source is a trading name of Wert Group LTD, registered in London, United Kingdom. We work with clients worldwide.

Tell us what you need built

Send a short description of your project. We'll reply with questions or a first estimate within two business days.

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