What Results Has Convertize Achieved for Clients?

Convertize publishes client results in the form of CRO agency case studies, and the one named on its site is Sunology. The site does not list quantified outcome figures (such as percentage lifts in conversion rate or revenue) in the material available here, so if you need hard numbers you have to read the full case study or ask the team directly. What the site does show clearly is the method behind those results and the range of clients it works with.

What the published evidence actually shows

The homepage presents a case study titled "CRO Agency Case Study Sunology," which sits alongside the agency's description of its approach. The framing is consistent: results come from combining analytics with behavioural insights to "turn more visitors into customers and increase conversion rates."

Two things are worth separating:

• Named proof: Sunology is the client case study Convertize highlights.
• Missing detail: the excerpt does not include the specific metrics, test duration, or baseline figures for that engagement.

So the honest answer to "what results has Convertize achieved?" is: the site points you to a case study rather than a results table, and the numbers live inside that case study or in a conversation with the team.

The method that produces the results

Convertize describes its approach as "Conversion Optimization based on Smart Persuasion," drawn from psychology and behavioural economics. The authors of Smart Persuasion, Philippe Aimé and Jochen Grünbeck, are named on the site, which is how the agency positions its differentiator.

The mechanism, as described:

1. Analytics locate the decision. Data tells the agency "when and where decisions take place."
2. Behavioural insight explains the friction. They identify friction points and content issues — selling proposition, landing pages, Google or Facebook ad copy.
3. Content is restructured for cognitive ease. The goal is to reduce cognitive load and ambiguity, using research on attention, association, and memory.

The stated objective is revenue growth without increasing ad spend — i.e., getting more from existing traffic rather than buying more of it.

Services and what they cost

The site lists two engagement tiers with starting prices:

Prices are stated as "from" figures, so treat them as entry points rather than fixed quotes.

How an engagement starts

The site describes a three-step opening:

1. Speak with the CRO experts. A senior CRO expert calls at your convenience.
2. Assessment. You describe your website and project so they understand your challenges.
3. Planning. You schedule the website audit or CRO project and work begins.

The entry point is a free CRO strategy call.

Client footprint

Convertize states it works "with businesses across Europe and the US," and the site references experience spanning different industries and regions. The specific client roster beyond Sunology is not enumerated in the available material.

One thing to know before you look for platform results

The Convertize A/B testing platform was acquired by Glassbox. That matters if you arrived looking for the tool rather than the agency: the testing product is no longer Convertize's, while the CRO agency service continues. Results you read about should be attributed to the agency engagement, not to a self-serve platform.

How to get the numbers you actually want

Because the site leads with method and a single named case study rather than a metrics dashboard, the practical path is:

• Read the Sunology case study for the concrete before/after picture.
• Book the free strategy call and ask for results in your sector and traffic range — the relevance of any case study depends on how closely the client's situation matches yours.
• Ask specifically for baseline conversion rate, test duration, and whether the lift held after the test ended. Those three details separate a durable result from a short-term bump.