We implement Segment, Tealium, mParticle, RudderStack and Hightouch for UK businesses — unifying every data source into a single customer profile and activating it across paid media, email, personalisation and analytics. GDPR-compliant by design, ICO-aligned from day one.
A Customer Data Platform (CDP) is a packaged software system that creates a persistent, unified customer database — collecting data from every source, resolving identities across devices and channels, and making that unified profile available to every downstream marketing and analytics tool in real time.
Most UK businesses are already generating enormous quantities of customer data. The problem is it lives in silos — website behaviour in GA4, purchase history in Shopify, email engagement in Klaviyo, CRM records in HubSpot, offline transactions in a POS system. A CDP is the connective tissue that stitches all of this together into a single source of truth, then activates it across every channel simultaneously.
Server-side and client-side data collection from websites, mobile apps, CRMs, eCommerce platforms, call centres and offline sources flows into a single stream.
Probabilistic and deterministic matching stitches anonymous and known profiles together. One customer browsing on mobile, converting on desktop and phoning support becomes one unified profile — not three separate records.
Audience segments built from your unified profiles are pushed to Meta, Google, HubSpot, Klaviyo, Salesforce and 400+ other destinations in real time — no manual CSV exports, no stale data.
A CRM (HubSpot, Salesforce) is an operational tool for managing contacts, deals and service tickets. It holds records humans create. A CDP collects behavioural data automatically and feeds the CRM — not the other way round.
A Data Management Platform (DMP) works with anonymous, third-party cookie data for programmatic targeting. In a post-cookie world, DMPs are declining. CDPs work with consented, first-party data and persist customer profiles indefinitely.
A data warehouse (BigQuery, Snowflake) is optimised for analytical queries across historical data. It is not built for real-time activation. A CDP can sit on top of a warehouse, or alongside it via reverse ETL — but they serve different purposes.
GA4, Mixpanel and Amplitude are analytics tools. They tell you what happened. A CDP is the activation layer — it takes what you know about a customer and acts on it across every marketing channel simultaneously.
UK businesses that build a CDP-powered first-party data infrastructure now will have a decisive advantage over competitors still relying on third-party signals, duplicate audiences and disconnected stacks.
Chrome's deprecation of third-party cookies has eliminated the targeting and measurement infrastructure most UK brands relied on for a decade. First-party data collected directly from your customers — with their consent — is now the only durable signal. A CDP makes that data actionable at scale.
The ICO has issued clear guidance on consent, legitimate interest and data minimisation under the UK GDPR. Businesses without a systematic approach to consent propagation across their martech stack face real compliance risk. A CDP with a consent management integration closes this gap automatically.
Without identity resolution, you are likely targeting the same customer four or five times across different devices in a single retargeting campaign. CDP-powered audience deduplication typically reduces wasted paid media spend by 30–40% whilst improving conversion rates on the same budget.
Personalisation that moves the revenue needle requires a unified, real-time customer profile. Without a CDP, personalisation is limited to what a single tool knows — which is always a partial view. With a CDP, every tool in your stack shares the same complete picture of each customer.
The average UK mid-market business runs 22 separate marketing tools. Each holds a different, conflicting version of customer data. A CDP becomes the single source of truth — every tool reads from and writes to the same unified profile, eliminating data inconsistencies across the stack.
Apple's privacy changes have created 30–40% measurement gaps for businesses that rely on pixel-based tracking. A server-side CDP implementation — sending conversion events directly from your server rather than the browser — recovers the majority of this lost signal, dramatically improving Meta and Google ad performance.
We are platform-agnostic, recommending the solution that fits your business model, budget, technical maturity and UK data residency requirements — not the one we have a commercial incentive to sell.
The most widely adopted CDP globally, with 400+ pre-built integrations and a developer-friendly SDK. Segment is the go-to choice for growth-stage and mid-market UK businesses that need fast time-to-value and a breadth of destination connections.
Born from tag management (Tealium iQ TMS), Tealium AudienceStream is the enterprise CDP of choice for businesses with complex data governance requirements, deep Adobe and Salesforce integrations, and large IT organisations.
The leading CDP for mobile-first businesses. mParticle's data quality controls, schema enforcement and real-time identity graph make it the preferred choice for apps with millions of MAUs where data quality and speed are non-negotiable.
The open-source, warehouse-native CDP. RudderStack can be self-hosted on your own UK or EU infrastructure, making it the only CDP option that gives you complete data sovereignty — critical for businesses with strict ICO or sector-specific data residency requirements.
Hightouch is not a traditional CDP — it is the market-leading reverse ETL platform that pulls enriched customer data from your data warehouse (BigQuery, Snowflake) and syncs it into your operational marketing tools. It makes your warehouse the source of truth for activation.
Klaviyo's built-in CDP capabilities — launched in 2023 — make it an increasingly compelling option for Shopify merchants who already use Klaviyo for email and SMS. The CDP layer unifies on-site behaviour, purchase data and email engagement into a single profile without needing a separate tool.
From the initial data audit through to live activations and ongoing governance, we cover every stage of the CDP journey — so your team gets a production-ready implementation, not a half-finished build.
We map every data source you have — website, app, CRM, eComm, offline — assess data quality, identify gaps and produce a detailed architecture recommendation before a single line of code is written.
We define your event taxonomy, trait naming conventions and identity strategy — the structural decisions that determine how useful your CDP data will be for segmentation and activation downstream.
Full CDP platform setup, workspace configuration, source instrumentation and quality assurance. We instrument your website, app and server-side pipelines to the specification agreed in schema design.
We connect your website (via analytics.js or server-side), mobile app, CRM (HubSpot, Salesforce), eCommerce platform (Shopify, Magento), email platform, offline data feeds and data warehouse as sources.
We connect your CDP to Meta CAPI, Google Enhanced Conversions, HubSpot, Klaviyo, Salesforce, Iterable, Braze, Intercom, Amplitude and any other tool in your stack — with correct event mapping and data validation.
We configure deterministic and probabilistic identity resolution to merge anonymous and known profiles — reducing duplicate profiles, improving audience match rates and ensuring a true single customer view.
We integrate your CMP (Cookiebot, OneTrust, Usercentrics) with your CDP to ensure consent signals propagate to every downstream destination automatically — compliant with UK GDPR and ICO guidance on Consent Mode v2.
We produce full implementation documentation, data dictionaries and runbooks — and train your marketing, analytics and engineering teams so they can manage and extend the CDP confidently without depending on us for every change.
A CDP implementation transforms a fragmented martech stack into a coherent, always-on customer data infrastructure. Every source feeds the central profile. Every activation channel draws from the same unified truth.
Page views, clicks, form submissions, purchases and custom events are captured via client-side SDK or server-side API and streamed directly into the CDP.
Anonymous visitors are merged with known customers the moment they identify themselves — via email sign-up, login or purchase — creating a continuous journey from first visit to loyal customer.
Audiences built from CDP profiles — high-value customers, lapsed purchasers, cart abandoners, trial users — are pushed to paid media, email and personalisation tools in real time, without manual exports.
Cleaned, schema-validated event data is forwarded to your data warehouse (BigQuery, Snowflake) and analytics tools (Amplitude, Mixpanel, Looker Studio) simultaneously — a single instrumentation point for all analytics needs.
Understanding which layer of your data stack does what — and how they work together — is essential to building an architecture that lasts.
| Platform Type | Primary Purpose | Data Type | Real-Time Activation | Identity Resolution | GDPR Consent | UK Examples |
|---|---|---|---|---|---|---|
| CDP | Collect, unify & activate customer data | First-party, behavioural, transactional | Yes — real-time | Core capability | Built-in consent propagation | Segment, Tealium, RudderStack |
| CRM | Manage customer relationships & sales pipeline | Contact records, deals, service tickets | Partial | Manual deduplication | Basic consent fields | HubSpot, Salesforce, Pipedrive |
| DMP | Programmatic ad targeting with third-party data | Anonymous, third-party cookie segments | Delayed | Anonymous only | Cookie-dependent | Adobe Audience Manager, Lotame |
| Data Warehouse | Store & query historical data at scale | All structured data, batch ingestion | Not built for activation | Via custom SQL | Requires custom build | BigQuery, Snowflake, Redshift |
| Analytics Tool | Analyse user behaviour & business performance | Behavioural, session, funnel data | Reporting only | Limited | Consent Mode supported | GA4, Amplitude, Mixpanel |
| Reverse ETL | Sync warehouse data back to marketing tools | Enriched, modelled warehouse data | Scheduled or real-time | Depends on warehouse model | Inherits warehouse governance | Hightouch, Census, Polytomic |
Many UK businesses have invested heavily in data warehouses — BigQuery, Snowflake, Redshift — that contain incredibly rich, modelled customer data. Lifetime value scores, churn propensity, product affinity, RFM segments. But that data sits idle because it cannot reach the marketing tools your team actually uses to run campaigns.
Reverse ETL solves this. Platforms like Hightouch and Census query your warehouse on a schedule (or in real time), and sync the results directly into HubSpot, Salesforce, Klaviyo, Braze, Meta Custom Audiences, Google Customer Match and 200+ other tools. No engineering tickets. No CSV exports. No stale data.
If your business is warehouse-mature but marketing-activation-limited, reverse ETL is often a faster, more cost-effective path to personalisation at scale than a full CDP implementation.
dbt or SQL models transform raw event data into clean customer tables — CLV scores, segments, product affinities.
Hightouch queries your warehouse tables on a schedule you define — every 15 minutes, hourly, or triggered by a dbt run.
Map warehouse fields to destination fields — no code required. Push CLV scores to HubSpot contact properties, or high-value segments to Meta Custom Audiences.
Market leader in reverse ETL. Best-in-class audience builder, Customer Studio for self-serve segmentation, and the broadest destination library. Our preferred platform for most UK businesses.
Strong alternative to Hightouch with excellent data transformation capabilities and a clean UI. Particularly well-suited for B2B businesses syncing account-level data to Salesforce.
For businesses with mature data engineering teams, we can design custom reverse ETL pipelines using dbt for transformation and Airflow or Prefect for orchestration — no additional tool licence required.
Segment's native reverse ETL feature allows Segment customers to sync warehouse data into the Segment ecosystem and onward to any Segment destination — a clean option if you are already on Segment.
Every CDP implementation we deliver is built with UK GDPR compliance as a first principle — not bolted on after the fact. We design consent propagation, data residency and DSAR workflows into the architecture from day one.
We implement Google's Consent Mode v2 as standard on every CDP build — ensuring that ad personalisation and measurement signals are only sent when the appropriate consent signals are present, in line with ICO guidance.
For businesses with strict data localisation requirements, we configure CDP and warehouse infrastructure to keep all customer data within UK or EU server regions — RudderStack self-hosted is particularly well-suited to this requirement.
When a customer withdraws consent via your CMP, the CDP automatically suppresses their profile from all downstream destinations — Meta, Google, HubSpot, email platforms — within seconds, without manual intervention.
We document the complete data lineage of every customer record — which sources contributed, which destinations received it — so that Data Subject Access Requests and erasure requests can be fulfilled accurately and efficiently.
A structured four-phase process that eliminates the guesswork, reduces rework and gets your CDP producing value quickly.
We assess your current data sources, martech stack, analytics quality and business goals — producing a detailed data audit report, platform recommendation and implementation roadmap before any build begins.
We design your event taxonomy, identity resolution strategy, consent architecture and destination mapping. Schema design decisions made here determine the long-term usefulness of your CDP — we take time to get them right.
Our engineers instrument your website, app and server-side pipelines to the agreed specification — with QA validation at every stage. We test event schemas, identity resolution, consent propagation and destination delivery before sign-off.
With your CDP live and data flowing, we build your first audiences, configure destination activations — Meta CAPI, Google Enhanced Conversions, Klaviyo, HubSpot — and train your team to manage and extend the system independently.
Transparent, outcome-focused pricing. All engagements begin with a discovery audit so we scope accurately — no surprises mid-project.
Everything UK businesses typically ask before embarking on a CDP implementation.
Book a free CDP discovery call. We'll audit your current data stack, identify the gaps and recommend the right platform and architecture for your business — no obligations, no jargon.
Get a Free CDP Audit →