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DEVLO.CH β€” SWISS B2B AGENCY

Clay & Data B2B enrichment: ultra-qualified lists ready to prospect

Multi-source data enrichment, scoring and conversion-oriented automation.

5 steps6 configuration levers2 related case studies4 frequently asked questions

B2B data enrichment **is the process of aggregating**, validating and scoring prospect data from numerous sources in a single workflow. Clay is today the most flexible solution for producing truly usable prospecting lists with firmographic, technographic and contact-level precision.

devlo designs Clay workflows that combine firmography, technography, contact validation and contextual signals. The result: enriched and prioritised lists, ready to be activated in your outbound sequences.

In addition to Clay, we orchestrate a multi-source stack (Apollo, ZoomInfo, Cognism, Crunchbase, Hunter, BuiltWith) to limit obsolete data and improve targeting quality.

What this service covers

  • βœ“Audit and clean-up of your existing database
  • βœ“Construction of the TAM and ICP filters
  • βœ“Multi-source enrichment via Clay
  • βœ“Email and telephone validation
  • βœ“Scoring prospects according to your business criteria
  • βœ“Generation of contextualised icebreakers
  • βœ“Technology stack detection
  • βœ“Signal detection Financing and growth
  • βœ“Export formatted for lemlist, HubSpot, Salesforce
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Monizze logo
Horus Software logo
CareerLunch logo
Saporo logo
Cegos logo
Abacus logo
APIDAE logo
IDDI logo
Locky logo
HIAG logo

5-step enrichment process

  1. 1

    ICP mapping

    Definition of qualification criteria.

  2. 2

    Source design

    Selection of relevant sources by market.

  3. 3

    Workflow Clay

    Tables, enrichment, scoring and automation.

  4. 4

    Validation

    Quality control of emails, telephone calls and duplicates.

  5. 5

    Activation

    Structured delivery for your sales tools.

Why does useful data come before volume in B2B enrichment?

A large but inaccurate database destroys outbound performance. According to HubSpot (2024), sales teams waste up to 27% of their time on bad data. Our priority is to reduce the noise: qualify better, enrich better, and push only accounts with a high probability of response using multi-source validation.

Indeed, Clay is particularly powerful when coupled with clear business logic. We deliver not just columns of data, but an operational system that can be reused by your team. The result is a clean, scored, and actionable database that directly improves campaign performance.

In summary:

Key takeaways

  • Data quality matters more than data volume for outbound success
  • Clay enables multi-source enrichment from Apollo, ZoomInfo, Cognism, and Crunchbase
  • Sales teams waste up to 27% of their time on inaccurate or incomplete data
  • A well-built Clay workflow produces scored, validated, and actionable prospect lists

Data enrichment use cases

Step 1/2 β€” Configure

50%

Configuring your Clay workflow

Specify your sources, volumes and priority data to frame the enrichment.

Have you ever seen Clay?

Current sources

Type of list

Volume of leads

Priority data

End use

Configuration preview

Have you ever seen Clay?: Not defined

Current sources: Not defined

Type of list: Not defined

Volume of leads: Not defined

Priority data: Not defined

End use: Not defined

You can edit your choices before submission.

Case studies

Field proof for this service

Discover real campaigns delivered by devlo in Switzerland, Belgium, France and DACH. Each case study shows results, the method used, and operational learnings.

FAQ Clay enrichment

Is Clay right for SMEs?

Yes, if you canvass regularly.

Yes, if you canvass regularly. The ROI comes from the quality of targeting and the reduction in unnecessary mailings. We can run Clay for you or train your team.

What's the difference between Clay and Apollo?

Apollo is primarily a database and engagement tool.

Apollo is primarily a database and engagement tool. Clay is a multi-source enrichment orchestrator that cross-references, scores and automates data.

How do you guarantee data quality?

We cross-reference several sources and systematically validate key contacts (email, telephone, profile), with a control protocol before activation.

We cross-reference several sources and systematically validate key contacts (email, telephone, profile), with a control protocol before activation.

What should I do if a source is obsolete?

We use a multi-source fallback logic to replace obsolete fields and maintain a usable database.

We use a multi-source fallback logic to replace obsolete fields and maintain a usable database.

New at devlo

Also discover AI Sales Ops, our AI automation layer for B2B sales teams

If you want to complement this service with AI workflows for inbox management, CRM updates, meeting preparation, reporting or battle cards, we can deploy them alongside your outbound engine.

Switch to a reliable prospecting database

Build your B2B data engine with an operational Clay workflow.