19 — IT
Custom software development, London, built around your operation
When the process is the business, off-the-shelf software forces you to work someone else's way. Our custom software development team in London builds the internal platform around how your organisation actually operates, and integrates it with the apps you already run.
What we do
01
Discovery
Process mapped with the people doing the work before anything is specified.
02
Platform build
Workflow, permissions, reporting and audit as first-class features.
03
Integration
Finance, HR, clinical and legacy systems connected without brittle exports.
04
Support
Ongoing iteration under an agreed roadmap and SLA.
Delivery evidence
Work you can inspect.
Published work and our own systems provide context for the offer. Your scope and acceptance criteria are agreed for your project.
- 01
Operational SaaS platforms
M3CA case studies cover multi-user platforms, workflow software and service portals delivered with product design, cloud architecture, testing and launch support.
- 02
Healthcare administration
Our published healthcare work shows how intake, scheduling, permissions and governance records can be shaped around the staff who run the service.
- 03
The M3CA operating system
Enquiries, projects, CRM, proposals, invoicing, content and analytics run through software we designed around our own operation, giving our engineers a daily proving ground.
Relevant proof
See the work behind the offer.
IT
How we work
Our approach
- 01
Observe the operation
We map the real process with the people doing the work, including exceptions, handovers and the spreadsheets or inboxes holding it together today.
- 02
Prove the highest-risk part
The first release is scoped around one operational result. Integrations, permissions and migration risks are tested early rather than hidden behind a polished interface.
- 03
Release with evidence
Automated tests, audit trails, monitoring, backup and restore checks sit beside the product work so the system can be trusted after launch.
- 04
Hand over the keys
Code, data access, environments, operating notes and ownership are transferred clearly. Continued support is available, but the client is never trapped by the build.
Is this right for your team?
Operations outgrowing spreadsheets
For organisations managing approvals, handovers and reporting across disconnected files and inboxes. We map exceptions as well as the happy path before deciding what to automate.
Businesses with disconnected systems
For teams re-entering the same information in CRM, finance and delivery tools. We assess available interfaces, ownership and reconciliation before promising an integration.
Teams building a client platform
For portals or multi-user products that need company boundaries, permissions and an audit trail. Discovery establishes which users can view, change and approve each record.
What you receive
A decision-ready specification
A process map, prioritised release scope, integration assessment and acceptance criteria. We compare established software with a bespoke build before recommending investment.
A tested operational release
The agreed workflows, permissions, integrations and reporting, with tests, release notes and an explicit migration and rollback plan for affected data.
A maintainable handover
Code and environment access, data export arrangements, operating guidance and named responsibilities. Support coverage, service levels and future releases are agreed in the engagement scope.
Before you commission
Your questions, answered.
Should we buy an existing product instead?
Often, yes. We compare the workflow with established tools first. A custom build is justified when permissions, integration, operational exceptions or your product experience create a gap that configuration cannot reasonably close.
Can you work with our legacy systems?
We assess interfaces, export formats, authentication and vendor restrictions during discovery. Where a direct integration is not feasible, we explain alternatives and their operational limits before including them in the scope.
Who owns the software and data?
Ownership, repository access, third-party licences and data export rights are documented in the agreement. The handover identifies what belongs to you and any dependencies that carry separate terms.
How do you protect sensitive information?
We agree data classification, access roles, retention and hosting requirements before design. Tests cover company separation and permissions, with monitoring and recovery arrangements matched to the workload.
What happens after the first release?
We review the release against the agreed operational result, record defects and prioritise improvements. Ongoing support and response commitments are agreed explicitly, not assumed to be included forever.
Delivered from London
Based in Mayfair, working across London
M3CA LTD35 Berkeley Square, Berkeley Suite, MayfairLondon W1J 5BF, United Kingdom
+44 20 3978 6347
info@m3ca.com
Opening hoursMonday to Friday, 9am to 6pm. Visits by appointment.
Where we work
We work on site with teams across central London and remotely with clients throughout the UK. Most projects run from the Mayfair studio, with the engineering practice in the same building.
- Mayfair
- City of London
- Westminster
- Shoreditch
- Camden
- Kensington and Chelsea
- Islington
- Southwark
- Canary Wharf
- Greater London
Start
Brief M3CA on custom software development.
Tell us about the project, the audience and the deadline. We will come back with scope, cost and the crew or engineers who would run it.