Looking to boost lead management and make your multichannel campaigns more effective? An enriched B2B list allows you to achieve tangible results. Companies that invest in automated enrichment and segmentation see B2B conversion rates .
Criteria | Structured approach | Unstructured approach |
|---|---|---|
Lead quality | High | Variable |
B2B conversion rate | 15-30% | 2-10% |
Sales cycle | Shortcut | Standard or extended |
Data quality and timeliness are essential. Magileads offers an innovative solution to enrich your lists, ensure GDPR compliance, and facilitate B2B list purchases. This allows you to benefit from reliable prospecting tailored to today's market demands.
Key points for a B2B list
Investing in automated enrichment and segmentation increases B2B conversion rates.
An effective B2B list must be regularly updated to avoid wasting time on inactive prospects.
Segment your list by industry and company size to personalize your campaigns.
Use tools like LinkedIn Sales Navigator to identify and qualify your leads.
Buying B2B lists can be quick, but always check the quality of the data to avoid low conversion rates.
Combine multiple internal and external data sources to enrich your prospect database.
Comply with the GDPR by clearly informing your prospects about the use of their data.
Automated CRM integration allows you to track interactions and improve campaign personalization.
Defining and segmenting your B2B list
B2B list definition
You need to understand what a B2B list is before launching a prospecting campaign. A B2B list compiles the companies and professional contacts you are targeting for your sales efforts. This database forms the foundation of your prospecting strategy. It includes essential information such as the company name, industry, size, contact job title, and contact details. A well-structured list allows you to reach the right people and optimize your efforts.
To create an effective B2B list in 2026, you must apply specific criteria:
Focus on a company size that is appropriate for your offering.
Identify companies similar to your best customers.
Focus on business signals (growth, fundraising, recruitment).
Define a relevant geographical area.
Check the financial health of the targeted companies.
Take into account the age of the companies.
Keep your B2B prospecting database up to date.
Tip: An up-to-date list saves you time from wasting on inactive or irrelevant businesses.
Segmentation and ICP
Segmentation involves dividing your B2B list into homogeneous groups based on specific criteria. This allows you to tailor your messages and offers to each segment. The Ideal Customer Profile (ICP) represents the typical profile of your ideal customer. By defining your ICP, you focus your efforts on the prospects most likely to convert.
Segmentation criteria
You can segment your list along several lines: industry sector, company size, location, maturity level, or business signals. This approach helps you personalize your campaigns and maximize the impact of each action.
Focusing efforts on relevant targets
Optimizing prospecting resources
Advanced segmentation allows you to prioritize high-potential prospects and improve the relevance of your communications.
Lead qualification
Lead qualification involves assessing the quality and potential of each contact in your B2B list. You analyze criteria such as job title, decision-making authority, interest in your offering, and responsiveness. Rigorous qualification helps you focus your resources on the most promising leads.
If you are considering purchasing a B2B list, ensure that the files offered meet these segmentation and qualification criteria. A well-segmented and qualified list increases your chances of success and reduces customer acquisition costs.
Methods for creating and purchasing B2B lists
List creation
Creating your own B2B list gives you complete control over the quality and relevance of your data. You can leverage multiple internal sources : customer databases, purchase histories , website interactions, and information already held by your company. This approach allows you to identify opportunities to expand your database and maximize data usage to better understand your current customers.
Here are the key steps to building an effective B2B list:
Define your target precisely: sector, company size, geographical area, position sought.
Use tools like LinkedIn Sales Navigator to source and scrape leads.
Qualify and score leads based on their interest, maturity, and engagement.
Write custom sequences for each segment.
Launch your campaigns, track responses and adapt your follow-ups.
Transfer hot leads into your CRM for optimal follow-up.
Tip: Using internal data ensures a better understanding of your prospects and reduces the risk of errors.
B2B purchase list
Buying B2B contact lists remains a quick way to access a large volume of contacts. You can precisely target prospects and segment your marketing messages. This method reduces prospecting costs because it avoids significant expenses for data collection. However, it also has limitations: the cost per acquisition can be high, and some data may be outdated or inaccurate.
You save time on building your database.
You access files segmented according to your criteria.
You can customize your campaigns quickly.
But be warned: the quality of the files you purchase directly impacts your results. Poor-quality files often lead to very low deliverability rates . Many emails fail to reach recipients' inboxes. On average, only 10% of email clicks convert into customers, which can result in an unsatisfactory return on investment. Using outdated files can also damage your company's brand image, as the emails are perceived as spam.
Method | Benefits | Disadvantages |
|---|---|---|
Internal creation | Reliable data, customized segmentation, GDPR compliance | Collection time, resources needed |
B2B purchase list | Speed, volume, easy segmentation | High cost, risk of outdated data, compliance to be verified |
File rental | Temporary access, reduced cost | Limited data, supplier dependence |
File rental
Renting contact lists is an attractive alternative to purchasing B2B lists. You gain access to a database for a specific period, often at a lower cost. This solution is suitable for testing a market or launching a one-off campaign. You don't own the data, but you can target specific segments and limit expenses.
You reduce the financial risk associated with data acquisition.
You test the responsiveness of a segment before investing more.
You remain flexible in your prospecting strategy.
Note: Always verify the GDPR compliance of any files you rent or purchase. Data quality and freshness are essential to ensure deliverability and protect your brand image.
In summary, each method has its advantages and disadvantages. In-house creation ensures reliability and compliance but is time-consuming. Purchasing B2B lists offers a quick solution but requires increased vigilance regarding file quality. Renting lists allows you to test segments without commitment but limits data access. You should always prioritize quality and compliance to maximize your prospecting results.
Data collection and validation
Internal and external sources
To build a reliable B2B list, you need to leverage multiple data sources. Internal sources include information already present within your company. You can use your CRM, contact forms, communications with sales representatives, or even browsing history on your website. This internal data provides a precise view of your customers and prospects.
External sources enrich your database with additional information. You can access professional databases like Kompass or LinkedIn, consult industry directories, purchase qualified leads, or launch targeted advertising campaigns. The increase in contact points between businesses, especially since the pandemic, has generated a significant amount of professional data. You need to understand the specific characteristics of each source to optimize the collection and use of your data.
Tip: Always combine multiple sources to get a complete view and avoid blind spots in your prospecting.
GDPR compliance
Collecting B2B data requires compliance with the GDPR. You must base your data collection on legitimate interest for marketing purposes, without necessarily requesting explicit consent. It remains essential to clearly inform prospects of their rights and the purpose of the data collection.
Here are the main obligations to be respected:
Professional email addresses are personal data.
You need to keep a record for the marketing department.
Informs prospects that their email address will be used for marketing purposes.
Respect the right of individuals to object.
Guaranteed right of access , rectification or erasure of data.
By following these rules, you protect your company's reputation and avoid penalties. Transparency and consent management strengthen the trust of your prospects.
Tip: Regularly update your internal procedures to remain compliant with GDPR changes.
Data validation
Ensuring data reliability is a key step in guaranteeing the effectiveness of your B2B list. Several methods can be used to validate and optimize the quality of the information:
Uses the RNVP (Restructuring, Normalization and Postal Validation) process to verify addresses.
Detects duplicates to avoid unnecessary routing.
Take relocations into account to preserve commercial potential.
Implements controls during data entry.
Perform a regular or occasional cleaning of your base.
A clean and up-to-date database improves the deliverability of your campaigns and increases your conversion rate. You gain efficiency and reduce prospecting costs.
📌 Good to know: Rigorous data validation allows you to target the right contacts and optimize every sales action.
Magileads LinkedIn Scraping
Automated scraping
Looking to speed up your B2B contact list building? Magileads offers complete automation of LinkedIn contact extraction. Import your contacts directly from LinkedIn, eliminating manual processes. The platform extracts targeted profiles, enriches your external lists, and automatically generates professional email addresses. You also benefit from email verification to ensure the reliability of your database.
You can import your LinkedIn contacts in just a few clicks.
Magileads extracts key information from each profile.
The solution enriches your lists with additional data.
It generates and verifies emails to maximize deliverability.
Tip: Automation saves you valuable time and reduces the risk of human error when collecting data.
Target selection
To get a truly relevant list, you need to select the right profiles on LinkedIn. Magileads helps you target companies and contacts based on specific criteria. You can filter by industry , job title, or location. This advanced segmentation allows you to direct your campaigns to the decision-makers most likely to be interested in your offer.
Business sector: You identify the companies that correspond to your market.
Position: You target strategic or operational functions depending on your objective.
Location: You adapt your prospecting to the most relevant geographical area.
Note: A rigorous selection of targets improves the quality of your list and increases your chances of conversion.
Data extraction
Extracting data from LinkedIn is subject to strict rules. You need to know the best practices to remain compliant and protect your account. Magileads allows you to automate the process while respecting LinkedIn's limitations. You use the collected data ethically, primarily for market analysis or B2B prospecting campaigns. You avoid using personal information for commercial purposes without the consent of the individuals concerned.
Respect the request limits to avoid having your LinkedIn account blocked.
Use the data only for professional and ethical purposes.
Do not sell personal information without prior consent.
📌 Good to know: By following these best practices, you guarantee the compliance of your approach and you preserve the reputation of your company.
Magileads allows you to build a targeted, reliable and compliant B2B list, while optimizing each step of the automated LinkedIn extraction.
Magileads Enterprise Data Enrichment
Magileads lets you enrich your B2B list with strategic, up-to-date data to target the most relevant companies and maximize your sales results. You gain access to a global database, structured by intelligent algorithms, that aggregates information from over 20 professional sources. Discover how Magileads optimizes every aspect of B2B lead enrichment.
Legal and web data
You enrich your database with essential legal and web data to qualify your prospects. Magileads automatically collects and structures:
The SIRET number and the trade name of each company
The specific sector of activity
The workforce and size of the company
The address of the head office
The official website
This information allows you to quickly identify active companies and segment your prospecting based on reliable criteria. Magileads updates its financial data monthly, ensuring a consistently relevant database. This gives you a clear view of the market and helps you avoid errors caused by outdated information.
Tip: Use legal data to check the financial health and compliance of companies before launching your campaigns.
Technological data
Technological advancements give you a competitive advantage. Magileads analysis:
The software used by each company
The technological tools and equipment deployed
The digital platforms adopted
This allows you to segment your list based on the solutions already in place at your prospects' companies. This approach reveals purchase intentions and sales opportunities that you wouldn't detect with traditional data.
Technographic data has become essential for B2B sales and marketing, as it reveals purchase intentions and competitive opportunities that other types of data cannot detect.
With Magileads, you can tailor your messages and offer deals perfectly aligned with the technological needs of each company.
Recruitment data
Analyzing recruitment data allows you to target companies that are growing rapidly or undergoing transformation. Magileads enriches your database with:
Information on open positions and current recruitment campaigns
Hiring trends by sector and region
Internal development signals
You segment your prospects according to their HR dynamics and personalize your sales approaches. Decision-makers respond favorably to offers tailored to their context: 80% of them respond positively to personalized messages. Precise segmentation multiplies the volume of opportunities tenfold and can generate up to 40% more conversions on qualified leads.
Data type | Advantage for prospecting | Update frequency |
|---|---|---|
Legal & Web | Reliability, compliance, segmentation | Monthly |
Technological | Purchase intent detection, precise targeting | Almost real |
Recruitment | Personalization, identification of growth signals | Almost real |
📌 Good to know: Magileads automatically enriches detailed information on companies and decision-makers, complete contact details, and demographic and behavioral data for prospects. You benefit from a database updated in real time, allowing you to make quick and informed decisions.
By using Magileads, you ensure the accuracy, reliability, and timeliness of your B2B data. You transform your prospecting into a proactive and intelligent approach, adapted to the market requirements of 2026.
Magileads Contact Enrichment
Professional emails
Want to reach the right decision-makers without wasting time? Magileads enriches your B2B list with reliable and verified professional email addresses. The platform uses multiple data providers for each contact. It performs automatic double-checking of emails, reducing bounce rates and improving campaign deliverability. Intelligent scoring measures the reliability of each address, allowing you to prioritize the most relevant contacts.
Access to multiple sources for each email
Automatic double check
Intelligent scoring for reliability
You can also enrich profiles with information about contacts' interests, behaviors, and preferences. Magileads fills in the missing information with its data enrichment option. This gives you a complete and ready-to-use contact database for your multichannel campaigns .
Tip: A well-stocked professional email database increases open rates and reduces the risk of spam.
Mobile phones for professionals
Cold calling remains a powerful channel in B2B. Magileads enriches your list with professional mobile numbers, making it easier to contact decision-makers directly. You gain access to up-to-date, verified contact information segmented by job title or industry. This approach allows you to personalize your calls and increase your appointment booking rate.
Advantage | Impact on prospecting |
|---|---|
Verified mobile numbers | Reduction in unsuccessful calls |
Job segmentation | Targeting key decision-makers |
Automatic update | Base still relevant |
This allows you to launch targeted calling campaigns, track interactions, and tailor your pitch to each prospect's profile. Salespeople save time and maximize their efficiency.
📞 Tip: Use business mobiles to quickly re-engage warm leads and accelerate the sales cycle.
CRM integration
Automated CRM integration with Magileads transforms your lead management. You synchronize all enriched contact information in your CRM in real time. This automation enables advanced message personalization and intelligent prospect targeting. Automated workflows facilitate interaction tracking and contact follow-up.
Personalizing campaigns using enriched data
Intelligent targeting for each segment
Automated interaction tracking
Personalized campaigns generate up to 20% higher conversion rates compared to generic campaigns. You can view the history of interactions, segment your lists, and tailor your offers to the actual needs of each prospect.
🎯 Note: Automated CRM integration allows you to manage your sales activities with precision and increase the profitability of your prospecting.
By using Magileads to enrich your contacts and integrate the data into your CRM, you transform your B2B prospecting. You gain efficiency, improve the quality of your leads, and boost your conversion rates.
B2B Enrichment Tools
Overview of solutions
Today you're discovering a market rich in B2B data enrichment tools. Several solutions stand out for their ability to automate data collection and qualification. Kaspr, Lusha, Lemlist, and Magileads are among the most widely used platforms. Kaspr offers seamless integration with LinkedIn and extensive European coverage. Lusha focuses on North America and offers high accuracy for business emails. Lemlist specializes in campaign personalization, while Magileads combines enrichment, segmentation, and automation to optimize every step of your prospecting.
Tip: To maximize your results, you can combine several tools according to your specific needs, whether for B2B list buying or for enriching your own databases.
Selection criteria
You need to compare solutions based on objective criteria to ensure the effectiveness of your prospecting. GDPR compliance remains essential to protect data and adhere to legislation. The reliability of information directly impacts conversion rates and customer satisfaction. Pricing varies depending on features and the volume of data processed. Integration with your CRM or prospecting tools simplifies lead management and accelerates the sales cycle.
Here are the main criteria to consider:
GDPR compliance : Make sure the solution complies with European regulations.
Data reliability : Favors platforms that guarantee accuracy greater than 90% for business emails.
Pricing : Analyzes the cost based on data volume and automation options.
Integration : Check compatibility with LinkedIn, browsers and your CRM.
Geographic coverage : Choose a tool adapted to your prospecting area.
Data freshness : Prefers real-time or very regular updates.
Comparison of tools
To help you choose, here is a comparison table of the main solutions on the market:
Criteria | Kaspr | Lusha | Magileads |
|---|---|---|---|
GDPR Compliance | Yes | Yes | Yes |
Data reliability | 92%+ accuracy for business emails | Superior accuracy, automatic verification | |
Price | Not specified | Not specified | More economical, free trial |
Integration | Seamless integration with LinkedIn | Multi-browser compatible, less smooth with LinkedIn | CRM synchronization, complete automation |
Geographic coverage | Excellent in Europe (95%+) | Excellent in North America (95%+) | Global, advanced segmentation |
Data freshness | Real-time update | Regular check-ups (30-90 days) | Automatic, real-time update |
Magileads stands out for its ability to enrich lists with up-to-date data, precise segmentation, and dynamic campaign personalization. You see concrete results: a tech SME increased its conversion rates by 30% thanks to Magileads. Another company halved its contact management time with the platform's automation .
Precise segmentation to target specific groups.
Dynamic campaign personalization.
Adaptability and budget optimization.
You gain efficiency and profitability, whether you choose to purchase B2B lists or enrich your own databases. Magileads offers a free trial to test all its features and transform your prospecting.
Data quality and compliance
Ensuring the quality and compliance of your B2B list is crucial for the success of your campaigns. You need to take a proactive approach to maintain a reliable, up-to-date, and GDPR-compliant database. Here's how to optimize each step.
Verification and update
You must regularly check the quality and reliability of your data. An effective prospecting database relies on accurate and up-to-date information. To do this, you can:
Control the origin of the data: prioritize official sites, public databases and professional social networks.
Evaluate the collection process: uses automated methods to save time, but ensures manual validation by experts.
Check the update frequency: opt for monthly or real-time updates.
Ensure GDPR compliance of the data provider.
📌 Tip: Set up a verification schedule to ensure your database never becomes obsolete.
Criteria | Recommended action |
|---|---|
Data origin | Official and reliable sources |
Update frequency | Monthly or real-time |
Validation | Manual and automated control |
GDPR Compliance | Systematic verification |
Regular cleaning
Regularly cleaning your database improves the deliverability and relevance of your campaigns. You need to identify and correct errors , remove duplicates, and fill in missing fields. Here are the key steps:
Audit your database to identify the data that needs processing.
Qualify the information using a reliable reference system.
Enrich the data to enhance its quality.
Use automated cleaning tools to quickly analyze your list and detect problem addresses. Professional solutions allow you to sort, structure, and validate information in minutes.
You save time thanks to a fast processing.
Advanced algorithms guarantee reliability.
You get clear reports to leverage your data.
💡 Tip: Schedule a monthly cleanup to avoid the accumulation of errors and preserve the performance of your prospecting.
Consent management
Complying with the GDPR requires rigorous consent management. You must inform each contact of the data source and guarantee transparency in the processing. To ensure compliance:
Always include a visible unsubscribe link in your communications.
Inform the prospect of the intended use of their data.
Limit the collection to the information that is strictly necessary.
Configure workflows tailored to prospect preferences.
Verify that each email is based on a legitimate and genuine commercial interest.
🔒 Note: Even though consent is not mandatory in B2B, it strengthens trust and the quality of your database.
Managing consent protects your company's reputation and reduces legal risks. This ensures the security and compliance of your business practices.
You now know the steps to build an effective and compliant B2B list. Automated enrichment, especially with Magileads, transforms your prospecting:
You reduce the time wasted on inaccurate data by 32%.
70% of sales teams report increased efficiency.
Personalize every interaction and boost your conversion rates.
Try Magileads for free to enhance your results. Stay informed about market trends and adapt your strategies to maintain your competitive edge.
FAQs
How to ensure GDPR compliance during B2B prospecting?
You must inform each contact about how their data will be used. Use reliable sources and respect the right to object. Magileads helps you structure your processes and ensure your lists are compliant.
Is buying B2B lists legal in France?
Yes, purchasing B2B lists remains legal if you comply with the GDPR. You must prioritize reputable providers and guarantee transparency with potential customers. Always verify the origin and freshness of the data.
How to verify the reliability of data in a B2B list?
You can use data enrichment tools like Magileads to validate emails and contact information. Control the update frequency and eliminate duplicates. A reliable database increases your conversion rates.
What are the advantages of automated enrichment?
Automated lead saves you time and improves lead quality. You gain access to up-to-date, segmented, and verified information. Magileads optimizes every step to boost your sales results.
Can I easily integrate enriched data into my CRM?
Yes, Magileads offers automatic synchronization with most CRMs. You can track your leads in real time and personalize your campaigns. The integration simplifies management and accelerates the sales cycle.
What is the difference between in-house creation and list purchase?
Creating lists in-house provides tailored data and a deeper understanding of your prospects. Purchasing lists allows you to quickly access a large volume of contacts. Combine the two to maximize the effectiveness of your prospecting.
Does Magileads offer a free trial?
Yes, you benefit from a free 15-day trial to test all of Magileads' features. Take advantage of this to enrich your lists, validate data quality, and measure the impact on your campaigns.
See also
How to Effectively Improve Your B2B Contact List
Developing a Precise and Effective B2B Prospecting File
Using LinkedIn to Build Targeted B2B Lists
Key Data to Improve Your B2B Prospecting
The Ultimate Guide to Successful Prospecting Campaigns in 2026
