// FOUNDRY5
Custom Build

YOUR PROBLEM.YOUR SYSTEM.BUILT TO FIT.

Custom software development built for complex operations that off-the-shelf software cannot handle. Bespoke architecture for businesses whose logic is their competitive advantage.

Custom Build visual
0Off-the-shelf compromises
100%Tailored to you
No usage caps
100%Code ownership
The problem

Off-the-shelf software forces your business to fit someone else's tool.

01

Workarounds that compound into chaos.

You started with a SaaS tool that almost fit. Then you added a spreadsheet for the edge cases. Then a Zapier integration for the gap between two systems. Now you have a Rube Goldberg machine of workarounds that nobody fully understands and everyone is afraid to touch.

02

Your process bends to the software.

Instead of the software supporting how you work, you change how you work to fit the software. Your competitive advantage (the unique way you operate) gets flattened into someone else's generic workflow. The tool dictates the business instead of the other way around.

03

Scale hits a wall you do not control.

The SaaS tool worked at 10 users. At 100, it is slow. At 1,000, the enterprise tier costs more than custom software would have. You are locked into someone else's pricing model, someone else's feature roadmap, and someone else's definition of what your business needs.

We build custom software that fits your operations not the other way around. Architecture designed for your data, your workflows, your scale.

See what you get →
What you get

Not a modified template. A system built for you.

Every custom build includes the same core package. No features sold separately. No surprises on what is included.

Production software platform

Fully deployed, custom-built application tailored to your specifications and operational requirements.

Full source code and Git history

You own everything. Clean commit history, properly documented, with architecture your next developer can inherit.

Comprehensive technical docs

Architecture diagrams, API documentation, database schemas, and decision rationale for every technical choice.

Automated test suite

Unit, integration, and end-to-end tests that ensure long-term stability as the system evolves.

Integration documentation

Every connection to existing systems documented data flows, auth mechanisms, and fallback procedures.

30 days post-launch support

Monitoring, stabilisation, and issue resolution during the critical launch phase. We do not disappear at go-live.

How we build

From requirements to production. Here is exactly how.

#PhaseWhat happensWhen
01Discovery and architectureWe map your workflows, data models, and integration requirements. Technical architecture designed around your specific constraints, not a generic template.Weeks 1-2
02Foundation buildCore data layer, authentication, and primary workflows built and deployed to staging. The skeleton of the system proven before the rest is added.Weeks 3-5
03Feature build and integrationSecondary features, third-party integrations, and edge cases handled methodically. Each feature tested in isolation and in context.Weeks 5-8
04Load test and securityStress testing under simulated real-world conditions. Security audit tailored to your specific threat model and compliance requirements.Weeks 8-9
05Deploy and stabiliseProduction deployment with monitoring, alerting, and rollback procedures. Ongoing support during the stabilisation period while real users adopt the system.Ongoing
Our stack

Tools chosen for the problem, not the portfolio.

Frontend
ReactNext.jsTypeScriptTailwind CSS
Backend
Node.jsPythonLaravelGraphQL
Database
PostgreSQLMongoDBRedisElasticsearch
Infrastructure
DockerAWSKubernetesTerraform
Integration
REST APIsWebhooksMessage QueuesETL Pipelines
Monitoring
SentryDatadogCustom DashboardsAlerting
Is this the right fit

We are direct about who we work best with.

This is right for you if

You need custom software that fits your operations.

  • Your operational complexity has outgrown SaaS tools and spreadsheets
  • You need deep integrations across multiple legacy and modern systems
  • Your business logic is your competitive advantage and needs custom code
  • You want a platform that scales with you, not a pricing tier that scales against you
  • You need enterprise-grade security designed around your specific requirements
Probably not the right fit if

You want something we cannot do well.

  • You need a simple CRUD app that existing SaaS tools can handle
  • You want a cheap build and are not concerned about long-term maintainability
  • You expect a complex system delivered in two weeks
  • You are looking for a body shop to fill seats, not architect a solution

If any of these describe you, we will tell you on the first call rather than waste your time or ours.

What founders say

Results over promises.

David

David

Founder at Seconddate

Foundry 5 really impressed me with their work on my AI-powered dating app. They nailed the UI/UX, starting with core app screens and then translating that vision to the web. The React site they built is sleek and polished - exactly what I was hoping for. What I appreciated most was their thoughtful approach and how easy they were to work with. They got the job done without needing me to micromanage.

Phil Blows

Phil Blows

CEO at StreaksAI

Foundry 5 surpassed all expectations in delivering our web development product swiftly and flawlessly. Their speed and eye for detail, especially under tight time constraints, showcase their commitment to excellence.

Liam Farley

Liam Farley

CEO, Xcelsior Capital

Working with Foundry 5 has been a great experience from start to finish. They seamlessly translated our vision into a website that not only showcases our brand and operations but also enhances our online presence as an investor in natural resources. Nothing was too much for them and they always put the client first.

Libby Tanswell

Libby Tanswell

CEO of Ove

Working with Foundry 5 to create the Ove app has been an absolute pleasure. Their professionalism, work ethic, and willingness to always go the extra mile has really impressed me. I would recommend them to anyone.

Daisy Harvey

Daisy Harvey

Loom Founder

Foundry 5 have gone above and beyond to bring my vision of Loom to life. Not only this, but they continue to be an integral part of our team. They are lovely people to work with, and I recommend them to anyone looking for a software partner. Particularly for non-technical tech founders (like me!) who need to ensure that their business is in safe hands.

Chris Jones

Chris Jones

Chief Product Officer Gather

The team has been instrumental in driving both the design and development of Gather, pairing a proactive, highly responsive workflow with the technical depth needed to handle our platform's complexity. Their partnership continues to move the product forward in a reliable and impactful way.

How we compare

An honest comparison.

FeatureFoundry 5FreelancerIn-house
Bespoke architecture for your workflows
Seamless legacy system integration
Enterprise-grade security audit
Load testing under real-world conditions
Post-launch stabilisation support
Comprehensive technical documentation
Full source code ownership
Automated test suite included
Investment

Transparent pricing. No hidden costs.

Fixed scope

Know exactly what you are paying.

We scope the custom build, agree a price, and stick to it. No surprise invoices. No scope creep charges. Complex systems need clear boundaries, and we define them before code starts.

  • Written scope before any code
  • Fixed price for the agreed scope
  • No surprise invoices
  • Risk-free pilot on first engagement
Sprint-based

Flexibility for evolving requirements.

For custom platforms where requirements emerge through use. You reprioritise at the start of each sprint. The system evolves with your business instead of being locked to an initial spec.

  • Reprioritise each sprint
  • Weekly progress updates
  • Scale up or down as needed
  • Same team, continuous context
FAQ

Questions we hear often.

Anything else? Just book a call. We'd rather talk than write another FAQ entry.

Book a 30-minute discovery call →

Risk-free first project · Full refund if you’re not satisfied

We ask. If your workflows can be handled by existing tools without significant workarounds, we will tell you to use those tools and save your money. Custom software makes sense when your operations are complex enough that off-the-shelf solutions create more problems than they solve. We are honest about this on the first call.

It depends on complexity. A focused custom platform with clear requirements runs six to twelve weeks. Complex systems with multiple integrations, user roles, and workflows can take three to six months. We scope honestly and give you a timeline before code starts.

Yes. Most custom builds involve connecting to existing systems: ERPs, CRMs, databases, third-party APIs. We design integration layers that insulate your new system from the quirks of legacy infrastructure so neither side breaks the other.

For fixed scope builds, we discuss the impact before any changes are made. For sprint-based work, changing requirements are expected. You reprioritise at the start of each sprint. Either way, no surprises.

Yes. We plan data migration as part of the build, not as an afterthought. This includes mapping, validation, transformation, and testing. Your data arrives clean and verified in the new system.

Security is designed into the architecture from the start, not bolted on at the end. We conduct a security audit tailored to your specific threat model and compliance requirements. Auth, permissions, data encryption, and vulnerability testing are all part of the standard build.

Thirty days of post-launch support is included. After that, most clients move into a sprint-based engagement for new features, maintenance, and scaling. The team that built the system maintains it. No context lost, no re-onboarding.

Ready to build?

Your operations deserve software that fits, not software you fit into.

Tell us the problem off-the-shelf software cannot solve. We will tell you if custom software development is the right answer and what it takes to build it.

Risk-free first project · Full refund if you’re not satisfied