Case study · Agency delivery
The team behind an agency that its clients never meet
Coded Lines is a London web development agency. From April 2021 to December 2023 we were their delivery team — building their clients' projects to their standards, under their name. It is our longest fixed-term engagement.
Engagement · Ongoing partnership, 2021–2023
Nearly three years delivering an agency's projects under their name.
- Industry
- Digital agency
- Solution
- White-label delivery
- Engagement model
- Delivery partner
- Engagement length
- 2 yrs 8 mo (Apr 2021 – Dec 2023)
- Market stage
- Established agency, variable pipeline
- Client
- Coded Lines Ltd, London
- Scope
- Custom software development
- Platform
- Web & software projects
Outcomes
What a delivery partner is actually measured on
Not code quality in the abstract — whether the agency ever had to explain us to their client.
-
100%
On-time delivery across the partnership
The agency could promise dates to its clients with confidence, which is the entire reason a delivery partner exists.
Across projects delivered April 2021 to December 2023
-
40%
More project capacity for the agency
Capacity that flexed with their sales cycle meant winning three projects at once became an opportunity rather than a staffing problem.
Compared with the agency's in-house delivery capacity
-
2 yr 8 mo
Partnership length
Agency relationships end quietly, one missed date at a time. This one ran nearly three years and closed properly.
Engagement, April 2021 to December 2023
Context
The situation before the partnership
What an agency is actually handing over when it outsources delivery.
The business
Coded Lines, a London web development agency selling and managing projects for its own clients.
The starting point
An agency handing delivery to someone else is handing over the thing its reputation rests on, while keeping all of the risk.
The trigger
Every late project, every defect and every awkward conversation with an end client lands on the agency, not the subcontractor. The asymmetry is the whole problem.
What they wanted
A partner that could take that risk off them: hit dates without being chased, work to their standards rather than ours, and stay invisible so their clients experienced Coded Lines.
Constraints
The agency's process and standards, not ours · their clients' deadlines, agreed before we saw them · no credit, because the work goes out under their name · quality problems damage their business, not just the project.
System
What it runs at today
How the partnership ran.
-
1
Agency, many end clients
Whatever the pipeline brought, across web and software projects
-
5.0
Client rating
Rated by the client in a verified review published on Clutch
-
0
Renegotiations to flex capacity
The team scaled with their sales cycle within the same arrangement
-
3
Years of their conventions
Their tooling, standards and review process throughout
The engineering problem
Four things a white-label partner has to accept
Most of these are about giving something up, which is why the arrangement suits few suppliers.
-
You inherit deadlines agreed before you existed
The agency sold the project, set the date and took the deposit. The delivery partner arrives afterwards and inherits a commitment made without them, to a client they will never speak to.
What we did
Honest estimates given immediately, and dates met without the agency chasing — because an agency that has to manage its delivery partner has not outsourced anything.
-
Their standards, not yours, however you feel about them
Every development team has conventions it believes in. A delivery partner that argues for its own is creating work for the client and producing code the agency's team cannot maintain.
What we did
We learned how Coded Lines builds and documents before taking a project, so the first delivery already looked like theirs rather than like ours.
-
Predictability beats brilliance
An agency needs to promise a date to a client with confidence. A partner who is occasionally spectacular and occasionally late is worse for that than one who is reliably ordinary.
What we did
We optimised for dates the agency could safely promise, which is worth considerably more to an agency than occasional heroics.
-
Capacity has to move with a pipeline you cannot see
Agency workload follows their sales cycle: three projects land at once, then a quiet month. A partner with fixed capacity is either a bottleneck or an expense.
What we did
Capacity moved up and down with the pipeline across nearly three years without renegotiating the relationship each time it changed.
Architecture
How it fits together
Simplified — the shape of the system rather than every service in it.
-
Web
- Front-end development
- Responsive builds
- CMS integration
Whatever each project required, built to the agency's conventions so their team recognised it.
-
Backend
- APIs & services
- Databases
- Third-party integration
Server-side work across the pipeline, documented to the standard the agency would have to support.
-
Process
- Agency conventions
- Shared code review
- Their tooling
Their process adopted wholesale. A delivery partner importing its own process is a delivery partner creating friction.
-
Handover
- Documentation
- Maintainable code
- Support transition
Every project delivered so the agency could support it without us — which is the opposite of how most suppliers protect a relationship.
There is no house style here on purpose. The measure of this work is whether the agency's own developers could pick up a project a year later and not be able to tell which parts we built.
Solutions
How the partnership ran
Almost three years of projects for the agency's clients, across whatever the pipeline brought.
-
Project delivery
Web and software projects taken from the agency's specification through to delivery, built to their conventions so their team could maintain them.
-
Working as their team
Their tools, their standards, their review process. We adapted to Coded Lines rather than asking an agency to adapt to a supplier.
-
Predictable dates
Estimates given honestly and dates met, because an agency that has to chase its delivery partner has not outsourced anything.
-
Flexible capacity
Capacity moved up and down with the agency's pipeline without renegotiating the relationship each time.
-
Quality and handover
Work delivered so the agency could support it — documented, conventional and free of surprises they would have to explain.
-
Discretion
No contact with end clients, no credit claimed, no mention of the arrangement. That is the product.
Key capabilities
What it does day to day
What the partnership provided, project after project.
| Capability | Runs | Refresh | What it does |
|---|---|---|---|
| Project delivery | Per project | Per brief | Web and software projects taken from the agency's specification through to delivery |
| Their standards | Continuous | Every project | Their tools, conventions and review process, adopted rather than negotiated |
| Predictable dates | Per project | Per commitment | Estimates given honestly and dates met without the agency chasing |
| Flexible capacity | Ongoing | With the pipeline | Scaling up and down with their sales cycle inside one arrangement |
| Maintainable handover | Per project | On delivery | Documented, conventional code their own team can support |
| Discretion | Always | Continuous | No end-client contact, no credit claimed, no mention of the arrangement |
Integrations
How the moving parts plug in
The agency sold and managed; we delivered. The end client saw one company.
The agency
- Client relationshipTheirs, entirely
- SpecificationAgreed with their client
- Commercial termsSet before we were involved
Delivery partnership
- Their conventionsAdopted from day one
- Shared reviewTheir team reviewing ours
- Honest estimatesDates they could promise
The end client
- Delivered project
- Under the agency's name
- Maintainable by their team
The agency never had to explain a supply chain to its client, and never had to manage us to get a date met. Those two facts are why the arrangement lasted nearly three years.
Security & data
How we handled their clients' work
A delivery partner touches codebases and data belonging to businesses that have no relationship with us and never agreed to one.
-
Client-controlled access
Access to repositories and environments was granted and revoked by the agency, scoped per project.
-
No data beyond the project
We worked with what each project required and nothing broader across the agency's client base.
-
Reviewed delivery
Every change went through the agency's review process, so nothing reached their client unseen by them.
-
Confidentiality
No end-client contact, no named references and no public credit — the arrangement itself stays private.
The brief
An agency's reputation is only as good as whoever writes the code
When an agency hands delivery to someone else, it is handing over the thing its reputation rests on. Every late project, every defect and every awkward conversation with an end client lands on the agency, not the subcontractor.
Coded Lines needed a partner that could take that risk off them: hit dates without being chased, work to their standards rather than ours, and stay invisible — so their clients experienced Coded Lines, not a supply chain.
- Delivery to the agency's standards, not our own
- Dates met without the agency having to manage us
- Invisible to the end client, always
- Capacity that flexes with the agency's pipeline
What a white-label partner has to accept
- 01The agency's process and standards, not yours
- 02Their clients' deadlines, which were agreed before you saw them
- 03No credit: the work goes out under their name
- 04Quality problems damage their business, not just the project
Process
How it lasted nearly three years
Agency relationships end quietly, one missed date at a time. This one did not.
-
Adopting their standards
We learned how Coded Lines builds and documents before taking a project, so the first delivery already looked like theirs.
-
Earning the harder projects
Beginning with contained work and moving to the projects where a missed date would have cost the agency a client.
-
Predictability over speed
We optimised for dates the agency could safely promise, which is worth more to an agency than occasional heroics.
-
Flexing with the pipeline
Scaling with their sales cycle across nearly three years, through busy periods and quiet ones.
-
A clean ending
The engagement ran to December 2023 and closed with the work handed over properly rather than abandoned.
Technology
Whatever the agency's projects required
A delivery partner does not get to have a preferred stack. We worked in what each project and the agency's standards required.
Web
- Front-end development
- Responsive builds
- CMS integration
Backend
- APIs and services
- Databases
- Third-party integration
Process
- Agency's conventions
- Shared code review
- Their tooling
Handover
- Documentation
- Maintainable code
- Support transition
Business impact
What the agency got
Three things that made nearly three years possible.
-
Dates they could promise
Predictable delivery let the agency sell with confidence rather than hedging every commitment.
-
Capacity that followed sales
Scaling with the pipeline meant winning three projects at once was an opportunity rather than a problem.
-
Reputation intact
Their clients experienced Coded Lines throughout, which is the entire point of a white-label arrangement.
The result
Their clients got Coded Lines, and that is exactly the point
For nearly three years the agency sold, and we delivered. Their clients dealt with Coded Lines throughout, which is what a white-label partnership is for.
The client wrote that we went above and beyond as a vendor, exceeding all expectations, in a verified Clutch review. For an agency partnership, the length of the engagement says the same thing more quietly.
- Delivery under the agency's name for 2 years 8 months
- Built to their standards so their team could maintain it
- Capacity flexed with their pipeline
- 5.0 rating in a verified Clutch review
What makes a white-label partnership work
- 01Adopt the agency's standards completely, from day one
- 02Be predictable rather than occasionally brilliant
- 03Never appear in front of the end client
- 04Deliver work their own team can maintain without you
Client review
What the client said about the work
Published on Clutch, where the client is verified and we cannot edit or remove what they write.
-
Custom Software Development
Custom Software Development for a Web Development Agency
Silver Scintilla went above and beyond as a vendor, exceeding all expectations.
Tasos Maroudas Technical Director & Founder, Coded Lines Ltd Apr 2021 – Dec 2023 Verified review on Clutch (Tasos Maroudas, opens in a new tab)
Free discovery call
Have an idea? Let's turn it into AI-powered software.
Book a free discovery call with our experts. Share your idea and we will help you shape the scope, timeline and budget, under NDA.
- Free consultation
- NDA before we talk
- Transparent estimate