B2B data
Validate e-mail data
Invalid email addresses, duplicates or spam traps lead to bounces, poor delivery rates and, in the worst case, to the devaluation of your domain. We ensure that your email lists are clean, up-to-date and ready for use - whether for newsletters, CRM automations or sales processes.
We use intelligent checking methods to reliably detect typos, hard and soft bounces, spam traps and duplicates. Validation is GDPR-compliant and can also be implemented efficiently for large volumes of data.
Our services at a glance:
- Checking for deliverability and format errors
- Detection and correction of typical typos (e.g. @gmial.com)
- Removal of duplicates, test addresses and spam traps
- Identification of inactive or risky addresses
- Preparation for clean CRM or newsletter imports
- Direct integration as a custom property for HubSpot customers
Your advantage:
Better delivery rates, fewer bounces - and a database you can rely on.
Additional content on the topic of B2B data:

Ad fraud in Google Ads: What you need to know

How long will a CRM Migration take? - And what to expect!
Enrich B2B data
Incomplete or outdated data records slow down your sales and marketing processes. We enrich your existing B2B data automatically and in compliance with GDPR with relevant information - for example, industry, company size, location, turnover, technologies or contact persons.
Targeted data enrichment gives you a more complete picture of your target group, allows you to segment campaigns better, prioritize sales processes and communicate in a more personalized way. On request, we can integrate the enriched data directly into your CRM or marketing system.
Our services:
- We usually find the right e-mail addresses for well-known names and companies
- Assignment of companies and contacts
- For HubSpot customers: Enrichment via Breeze Intelligence
- Enrichment of relevant data from your own CRM system or database
Your advantage:
Improved database for efficient marketing & sales measures
Further content on the topic of data quality
Data migration
A system change, CRM relaunch or the consolidation of different data sources is often complex - we ensure that your data is transferred completely, correctly and securely.
We take care of the structured migration of your marketing and CRM data - regardless of the system or provider. We check the data quality in advance, ensure a clean assignment of fields and objects and minimize downtimes or data loss through clear processes. Bonus - we can even cleanse your data during this process if required.
Whether HubSpot, Salesforce, Pipedrive or individual solutions - we have experience with common systems and support you from planning to productive handover.
Our services at a glance:
- Analysis and preparation of your existing data
- Mapping and field assignment between source and target system
- Removal of duplicates, outdated or inconsistent entries
- Test migration incl. validation
- Live migration with minimal downtime
- Documentation & support during go-live
Your advantage:
A clean restart with a reliable database - so that your team can continue working immediately.
Our FAQs:
- How long does a CRM migration take?
- What is a hard bounce?
- What is a soft bounce?
- What is the difference between hard and soft bounce?
- All FAQs
Data interface between tools
When systems don't talk to each other, manual effort, susceptibility to errors and loss of time are the result. We develop and configure functioning data interfaces that connect your tools reliably and in compliance with GDPR - for automated processes without data loss.
Whether CRM, newsletter tool, e-commerce system, ERP or reporting solution: we ensure that contacts, leads, transactions and user behavior arrive exactly where they are needed - in real time or at the desired pace.
Typical use cases:
- CRM <-> email marketing (e.g. HubSpot & Mailchimp)
- CRM <-> ERP (e.g. HubSpot & Microsoft Dynamics 365 Business Central)
- CRM <-> CRM (e.g. HubSpot & Salesforce)
- Reporting tools <-> data sources (e.g. GA4 & Looker Studio)
- Automated data workflows with Zapier and Zerobounce
Your advantage:
Less manual work, more data quality - and processes that really work together.
Further contents:
Our blog
We show you how to get better B2B data with less effort - from validation and enrichment to clean integration into your systems. Find out how to integrate tools such as Zerobounce, Zapier & Co. into your data strategy in a meaningful way. Find out more in our blog.

How to Prevent Data Loss During CRM Migration

Effective CRM audit: How to check your CRM system
