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Software Development & Business Consultancy

We build the software,
and the case for it.

Inter Web Services Ltd is a London consultancy and engineering team. We work out what your business actually needs, prove it is worth building, then build and run it — under one accountable relationship.

  • Discovery before any fixed price
  • You own the code from day one
  • Working software every two weeks
Service lines
21
Industries
8
Case studies
9
Technologies
60+

Technologies we build and support

  • React
  • Next.js
  • TypeScript
  • Node.js
  • Python
  • .NET
  • AWS
  • Azure
  • Google Cloud
  • Kubernetes
  • Docker
  • Terraform
  • PostgreSQL
  • Snowflake
  • React Native
  • Flutter
  • GraphQL
  • Power BI
  • Stripe
  • Shopify
  • Salesforce
  • Laravel

Two practices, one team

Most firms sell you strategy or delivery. We are accountable for both.

One partner for the strategy and the build — consultancy that defines the outcome, engineering that ships it, and managed support that keeps it running.

Business Consultancy

We start with the commercial question rather than the technology. Process mapping, operating model design, and costed roadmaps that stand up in a board paper — including the recommendations we advise against, and why.

  • Technology strategy and costed roadmaps
  • Process analysis with the cost of friction quantified
  • Product discovery before you commit a build budget
  • Independent review of proposals you have been given
Consultancy services

Software Engineering

Then we build it. Custom applications, integrations, cloud platforms, and data products delivered in two-week sprints, with working software you can use at the end of each one.

  • Custom web, mobile, and internal applications
  • Integrations between the systems you already run
  • Cloud architecture, migration, and DevOps
  • Data platforms, reporting, and applied AI
Engineering services

Services

Where clients usually start

21 service lines across 6 practices. These are the engagements we are asked for most often.

Custom Software Development

Bespoke web and internal applications designed around how your business actually operates.

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Web Application Development

Fast, accessible, search-visible web applications built on modern frameworks.

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Cloud Migration & Architecture

Move to AWS, Azure, or Google Cloud with a costed plan and a rollback path.

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Data Engineering & Analytics

One reliable set of numbers, instead of four departments arguing about whose report is right.

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Technology & Digital Strategy

A costed, sequenced technology roadmap tied to commercial objectives — not a wish list.

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Dedicated Teams & Staff Augmentation

Embed vetted engineers, designers, or analysts into your team on a monthly basis.

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Selected work

Engagements, and what changed as a result

Client names are withheld under NDA. Figures are those measured during and after each engagement.

Software EngineeringFinancial Services & FinTech

Automating reconciliation for a payments provider

A finance team spending eight days a month matching settlement files by hand moved to an automated reconciliation engine with a clear exception queue — closing the month in under a day.

TypeScriptNode.jsPostgreSQLAWSTerraform
Read the full case study
8 days → <1
Month-end close time
94%
Transactions auto-matched
100%
Adjustments with audit trail
Web & Digital Platforms

Replatforming a multi-brand retailer to headless commerce

Three ageing storefronts sharing one overloaded template were rebuilt as a headless front end on a shared component library, cutting page load times and ending the annual Black Friday panic.

6.2s → 1.4sMobile LCP, product pages+31%Mobile conversion rate

Data & AI

A single operational view across a fragmented fleet

Consignment data scattered across telematics, subcontractor emails, and a legacy TMS was consolidated into one live operational picture, with ETA predictions replacing phone calls to drivers.

−62%Inbound tracking calls3 → 1Systems used by planners

Business Consultancy

Fixing the operating model before building software

A client arrived asking us to build a bespoke platform. Process mapping showed most of the pain was handoffs and ownership, so we redesigned the operating model and cut the software scope by around 60%.

−60%Software scope required9 → 4Handoffs per engagement

How we work

A sequence designed so you can stop at any point

Each phase produces something you own and can act on independently. Discovery output is yours whether or not we build the thing.

  1. 01

    Discover

    1–3 weeks

    Discovery report, costed options, and a recommendation

  2. 02

    Design

    2–4 weeks

    Approved prototype, architecture, and statement of work

  3. 03

    Build

    6–20 weeks

    Tested, deployable increments in a staging environment

  4. 04

    Launch

    1–3 weeks

    Live system, trained users, and documented handover

  5. 05

    Evolve

    Ongoing

    Maintained platform with a prioritised improvement roadmap

Why clients choose us

Four commitments we put in writing

01

Consultancy and engineering under one roof

Most organisations buy strategy from one firm and delivery from another, then absorb the cost of the gap between them. We do both, so the people who defined the outcome are accountable for shipping it.

02

Discovery before commitment

We do not issue fixed prices for undefined work. A short, paid discovery produces a real specification and a real number, and you are free to take both elsewhere.

03

Senior people on the actual work

The people who scope your project are the people who build it. There is no handoff from a senior pitch team to a junior delivery team after signature.

04

No lock-in by design

You own the code, the cloud accounts, the designs, and the documentation from day one. Our retainers are renewed because they are useful, not because leaving is difficult.

Industries

Sector context, not just technical skill

We work across these industries and understand the constraints that come with each — regulatory, operational, and commercial.

Next step

Tell us what you are trying to fix

Send a short description of the problem and we will reply within one business day. The first call is a 30–45 minute conversation with someone senior — free, and with no obligation.

sales@interwebservices.co.uk128 City Road, London, EC1V 2NX, United Kingdom