The agency that helps bring your data-driven projects to life
Why Work with a Data Agency?
Our Data Expertise
Data Collection & Architecture for Performance
Despite recent legislative changes, data collection remains a top priority for brands aiming to fully understand the customer journey — both from a media and site-centric perspective.
From implementing media event tags to integrating your analytics tools with third-party systems (CRM, databases), and setting up e-commerce tracking, our consultants support you in building and maintaining long-term tracking strategies.
KLH’s proven methodology, validated by our clients, ensures efficient delivery and deployment of tagging plans, while also empowering business and development teams with the knowledge needed to internalize core data competencies.
Analytics & Data Consulting
Starting from your business and marketing goals, our data analysts conduct in-depth studies of the data you’ve collected to identify both the strengths and the pain points in your digital ecosystem.
Our consultants work closely with you to analyze user behavior and journeys — both on-site and off-site — as well as conversion funnels and page performance, to ensure the most comprehensive understanding of your audience.
They then provide actionable, ROI-driven recommendations tailored to your objectives.
CRO Audit (Conversion Rate Optimization)
Performance-driven, a CRO audit aims to deeply analyze your users’ journey by combining multiple analytical perspectives. The goal is to identify navigation pain points that may hinder conversions on your website.
These audits are carried out by involving various KLH disciplines to ensure alignment across all workstreams and to create synergy between marketing levers.
At the end of the audit, your teams receive a prioritized optimization matrix and a clear roadmap to guide the implementation of recommended actions.
A/B Testing & User Experience Personalization
Test your ideas and let data guide your final decisions.
Today’s A/B testing solutions offer flexible journey adjustments and virtually endless variations.
Our methodology ensures fast deployments with high quality standards. We place strong emphasis on building and enriching your testing knowledge base — with each experiment contributing to a data-driven CRO strategy, managed just like a performance marketing campaign.
GDPR Compliance & CMP Deployment
The arrival of the GDPR in May 2018 transformed the way brands collect data — but also left many questions unanswered, forcing some companies to move forward without a clear roadmap.
KLH supports you in making the right decisions, such as choosing the right CMP (Consent Management Platform) and ensuring your website or app is fully compliant, while keeping two key priorities in mind:
- Respect GDPR and the regulations enforced by various European data protection authorities (CNILs)
- Maintain robust data collection across media and analytics platforms
Our Data Agency Certifications

As a client of KLH, at Mail In Black, we are satisfied with the results achieved in B2B lead generation, particularly through their lead qualification mechanisms prior to delivery. Their skilled team has demonstrated a strong understanding of our industry and challenges, implementing effective strategies. KLH has proven to be a reliable partner for our business.
The Key Stages of a Full Data Project
Defining
Your Needs
Tracking Implementation
While Google Tag Manager is the most commonly used TMS among our clients, our expertise also covers other market-leading solutions such as Tealium, Adobe Launch, Piwik, and more.
CRO Audit
A/B Testing
Our team supports you throughout the process to simplify your experience with A/B testing tools and deliver the most refined and impactful experience to your users.
The End Goal
Discover Our Greatest Success Stories
Let’s talk about your project
Unsatisfied with your website’s performance? Or ready to build a high-performing acquisition strategy? Let’s talk.
Contact KLH
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