Case studies with the working shown
Every case study GrowthLine publishes lives on this page, and every one is written to the same fixed standard: the challenge, the rebuild, and the result.
The publication rule, stated plainly: no figure appears anywhere on this site until the client it belongs to has signed it off. Every number below is a real, signed-off result carrying its source — where a client asked not to be named, the write-up is anonymised but the figures are exact.
What a click on a write-up buys: three sourced figures, the story in plain English, the method annotated in the margin, and an honest line on what the result does not prove.
Case studies
A B2B pipeline from scratch
One customer and no website, to £120k a month of recurring contracted work in the first 30 days.
£120k/mo
recurring contracted work won in 30 days
Cost per lead cut 4.3×
A £10k/month account taken from £86.50 a lead to £19.97, account-wide, in 30 days.
£19.97
cost per lead, down from £86.50
New clinic, ~70 enquiries a month
A brand-new central-London clinic to ~70 enquiries a month within 90 days.
~70/mo
enquiries, from a standing start
What every write-up has to show
- sign-off
- The client has approved every figure before it is published; a result we cannot get signed stays off the site.
- source
- Each metric carries a source line naming where the number comes from: the ads platform, the CRM, or the call log.
- scale
- Charts show real axes and full periods; a cropped y-axis is a way of lying politely, so we do not crop them.
- limits
- Each write-up states what the result does not prove: sector, budget band and seasonality all move the numbers, and sector-by-sector economics live with the industries we work with.
Results FAQs
Are the numbers on these case studies real?
Yes. Every figure is signed off by the client it belongs to and carries a source line naming where it comes from — the Google Ads account, the CRM, or a client-reported figure clearly labelled as such. Where a client asked not to be named, we anonymise the write-up but keep the numbers exact. No figure appears on this site until the client has approved it, so a result we cannot get signed stays off the site entirely.
What does a GrowthLine case study include?
Three fixed sections — the challenge, the rebuild and the result — followed by a chart with visible axes and a source line, three sourced figures, and a sidebar annotating the method. Every write-up also states its limits: what the result does not prove about other sectors, budgets or seasons. The format is fixed so write-ups can be compared with each other, not just admired one at a time.
Can I see results for my industry?
Each of the industries we work with has its own page carrying a same-sector case slot alongside that sector's click economics, and where a sector's write-up is not yet published, the slot says so plainly. If you need more than the placeholders show today, contact us and we will tell you what we can and cannot share yet.
The fastest way to see the method is on your own account.
The audit applies the same standard to your numbers — findings in writing, whether or not an engagement follows; if you need more than this page shows today, ask, and we will tell you plainly what we can and cannot share yet.