Four web agency delivery models compared on one buyer need

What to take away

Model fit in one line: fixed for known scope, continuing for steady demand, embedded for buyer-led teams, outcome-linked for measurable targets.

The common buying case

Assume an organisation in England needs discovery, content migration and accessible templates. It also needs development, two integrations, launch assurance and a year of support. The comparison period is twelve months from appointment. Money is in pounds sterling, and VAT treatment stays blank until a proposal is verified.

Those are comparison units, not a recommended scope or forecast. This comparison is model-level desk research dated 6 September 2026. The agencies named below are public examples of a model, not recommendations or rankings.

No single model wins. A buyer with a clear scope and acceptance point should start with a fixed project. A buyer with steady demand should test a continuing service. A buyer who leads delivery should test embedded specialists. A buyer with a measurable target should test outcome-linked work.

Which model fits when. Fixed project fits when scope, acceptance and content are clear. Continuing service fits when demand is steady and a queue can be defined. Embedded specialists fit when the buyer leads delivery and can manage roles. Outcome-linked work fits when a measure and attribution rule can be agreed.

Worked cost illustration for the common buying case. Applying the typical ranges above over twelve months:

These ranges are desk-research illustrations, not quotes. Check them against a written proposal that sets out the same scope, period and obligations.

Four named models and where each strains

Fixed project: Torchbox and Fat Beehive. Torchbox, based in Charlbury, Oxfordshire, built the open-source Wagtail CMS, which charities and public bodies use. Fat Beehive, in London, builds websites for charities and publishes budget guidance for the sector.

A fixed project gives a clear acceptance point when content and integrations are understood. It strains when discovery reveals major unknowns, so the variation route and stop authority outweigh a promised launch date.

Continuing service: Cyber-Duck and Substrakt. Cyber-Duck, in Elstree, Hertfordshire, sells design, build and ongoing support to financial services and public sector clients. Substrakt, in Birmingham, works with arts and culture organisations.

The unit is a defined queue or capacity per month. The contract must define the queue, clock and priority. It must also fix unused capacity, renewal and emergency work. Support without those fields is not a comparable service unit.

Embedded specialists: Equal Experts and Made Tech. Equal Experts, headquartered in London, supplies teams to UK government departments and large enterprises. Made Tech, also in London, is listed on AIM and delivers digital services for the public sector.

Embedded teams work inside the buyer's process. That can cut handovers, and it raises access and role ambiguity. GOV.UK employment-status guidance says tax and employment-law status can differ and depends on the actual relationship. A freelancer label does not decide it.

Outcome-linked: Brainlabs and Journey Further. Brainlabs, in London, and Journey Further, in Leeds, are performance media agencies where fees can follow measured results. The model ties payment or continuation to a measure.

It needs an agreed population, numerator, denominator and period. The data source, baseline, exclusions and treatment of outside changes must be settled too. Attribution is not proof that the agency caused the result. Legal, accessibility, security and privacy gates still apply even if the metric improves.

Non-compensating evidence gates

Rights cannot be left until handover. The IPO's commissioned-work guidance says the creator is generally the first copyright owner unless otherwise agreed in writing. List pre-existing code, third-party components, content, design assets and new work, with an ownership or licence outcome for each.

Data roles follow actual decisions. The ICO controller and processor guidance should inform a qualified review of analytics, forms, hosting and support access. A contract title alone cannot allocate statutory status.

Security evidence needs named responsibilities. The NCSC online-service guidance covers access, secure development and testing. It also covers logging, incident handling and supplier management. A cheaper fee or a stronger portfolio does not offset missing assurance.

Ask every bidder to return the same schedule: currency, VAT treatment, period, included quantity and exclusions. Add assumptions, expenses, licences, the change unit and acceptance tests. Include the support boundary and exit, then mark absent answers unknown.

The best model is the one whose verified obligations fit the buyer's service, not the one with the simplest label.

Before you act

Common questions

Why is comparing headline fees across delivery models meaningless?

Because each model sells a different unit: accepted deliverables, monthly capacity, named roles and time, or an agreed outcome boundary. Without a common buyer need, period and obligations, price comparisons lack a fair basis.

What must a continuing service contract define to be comparable?

It needs a defined queue, a priority rule and a monthly capacity figure. The buyer should also see how unused capacity, renewal and emergency work are handled.

How should a buyer handle rights and data roles before handover?

Record ownership or licence outcomes for each asset and take qualified advice on data roles. The ICO controller and processor guidance is a starting point.

Which agencies in England sell each delivery model?

Fixed projects: Torchbox in Charlbury, Oxfordshire, and Fat Beehive in London. Continuing services: Cyber-Duck in Elstree, Hertfordshire, and Substrakt in Birmingham. Embedded specialists: Equal Experts and Made Tech, both in London. Outcome-linked work: Brainlabs in London and Journey Further in Leeds.