We turn marketing into a search problem so you never waste another pound.

Unlike other agencies, Decima uses science-backed algorithms to ensure every click converts to a customer.

Try before you buy → Get in contact →
Trusted by businesses of all shapes and sizes

The Decisive Marketing Algorithm

Developed by cofounder Dr Torty Sivill
Dr Torty Sivill
The Decisive Marketing loop
1

Ideate and Interpret

Our AI analyses your business and interprets your ideal customer profiles, to gain a rich understanding of their emotions, pain points and desires. This is used to create ad messaging that resonates.

2

Do and Deliver

Our AI algorithms deliver ads instantly, ready to be assessed by our human team with expert customer psychology insight.

3

Report & Refine

We report true return on investment, identify what actually converts viewers to customers, and refine the next decision.

How our Algorithm helped Bocobay

Bocobay Grew Daily Conversions by 46.8%

Before Decima, we were struggling to piece together what was really driving growth, so we were wasting a lot on Google Ads that weren't doing much.
Nick Curtis
CEO, Bocobay
Holiday rental management, Caribbean

What makes Decima different from other agencies?

Ideas live in minutes, not weeks

Ads and landing pages commonly take weeks of back-and-forth. New messaging never gets tested and there’s no way to quickly identify the ad copy that strongly converts clicks to customers. Our AI algorithms bring powerful speed to the generation and testing of new ads and landing pages, so we can find what works much quicker.

of all client queries actioned the same day

Before this, we had no idea what a lead was really costing us, and we couldn’t touch our own website without waiting weeks on someone else. Now we can see the ads that are converting customers and Decima has been incredibly responsive to new ideas we bring to the table as well. It’s changed how confidently we can spend and test out new messaging.

Michael Dollard

Michael Dollard
COO, QuickTurn Cabinets

What happens after you get in touch

From the first conversation to scaling spend on what we know works. You set the pace, say go and ads can be live within days, not months.

1
Week 1
We arrange a meeting
A straightforward conversation about your business and where we think we can genuinely help. No obligation.
2
Weeks 1–2
We audit and propose
We dig into your existing marketing setup, find the gaps in how results are tracked, and come back with a proposal for an annual partnership.
3
From when you sign
We start running ads
Once agreed, we build and launch adverts designed to get you conversions, not clicks. Tracking is set up properly before a penny is spent.
4
Every two weeks
We report and refine
A biweekly review in plain English: what worked, what did not, and what we are changing next. Your account is never left to drift.
5
Once proven
We scale your spend
When we have found what genuinely works, we put more behind it to grow your leads, confident about where every extra pound is going.
6
The point of all this
Everyone is happy
More enquiries, marketing spend you can finally account for, and insight about your customers that is yours to keep.

Hear from our clients

★★★★★

The Growth Plan surfaced actionable recommendations that helped us rethink our messaging.

Danielle
Account Manager, FuseSign
★★★★★

"The depth of insight was impressive. Plenty of actionable advice and ideas we're now exploring."

Simon
CMO, Marketypes
★★★★★

Brilliant persona building plus analysis of our site. Very useful insights.

Lily
CEO, Jack Fertility
★★★★★

Before Decima, we were struggling to piece together what was really driving growth, so we were wasting a lot on Google Ads that weren't doing much.

Nick Curtis
CEO, Bocobay
★★★★★

What we got sent back was amazing, really really valuable.

Kerry Leighton-Bailey
CMO, BBD Boom
★★★★★

Decima has been incredibly responsive to new ideas we bring to the table as well. It’s changed how confidently we can spend and test out new messaging.

Michael Dollard
COO, QuickTurn Cabinets

Never waste marketing spend.

We’ll email you an ad and website page built to resonate with your target customer in 10 minutes.
Try before you buy
Get in touch

Get in touch

Get in touch

What can we do for you?

Tell us where you're spending — we'll show you how much you could save, and what to do next. No obligation.