Published:

Jun 13, 2025

Outbound

How to find more B2B emails in 2025

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Introduction

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In the realm of B2B sales and marketing, having accurate and complete lead data is paramount. Especially when it comes to finding emails and phone numbers.

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Yet, relying on a single data provider often results in gaps, leading to missed opportunities.

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Waterfall Enrichment is a strategic approach that leverages multiple data sources sequentially to fill in missing information, ensuring a more comprehensive and reliable dataset.

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This can greatly help your email reach the inbox of your prospects, and help your sales team get access to qualified and verified phone numbers.

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Understanding Waterfall Enrichment

Waterfall Enrichment is a process where lead data is passed through a series of data providers in a prioritized order.

If the first provider cannot furnish the required information, the system moves to the next, and so on, until the data is enriched or all sources are exhausted.

This method maximizes data coverage while optimizing costs, as you typically pay only for successful enrichments.

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How It Works:

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1️⃣ Initial Data Input: Start with basic lead information, such as full name (first and last name) and company name / domain.

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2️⃣ Primary Provider Query: The system queries the first data provider for missing details like email or phone number.

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3️⃣ Sequential Processing: If the primary provider lacks the information, the system proceeds to the next provider in the sequence.

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4️⃣ Data Verification: Once the data is found, it’s verified for accuracy before being added to your database. Email verification and Phone verification is key to make sure your outreach efforts are rewarded.

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This sequential approach ensures that you obtain the most accurate and complete data without redundant efforts or costs.

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Benefits of Waterfall Enrichment

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Enhanced Data Accuracy: By cross-verifying information across multiple sources, the likelihood of errors diminishes.

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Increased Coverage: Access to a broader range of data providers means higher chances of filling in missing information.

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Cost Efficiency: Paying only for successful enrichments avoids unnecessary expenses.

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Improved Outreach: With complete and accurate data, your sales and marketing teams can engage prospects more effectively.

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Learn more about cold-email vs email marketing.

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Pronto: A great solution for Waterfall Enrichment (use code STS20 at checkout for a 20% discount)

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When it comes to implementing Waterfall Enrichment seamlessly, Pronto stands out as a one of the best waterfall enrichment solution. Pronto’s platform is designed to automate and optimize the enrichment process, ensuring your lead data is as comprehensive and accurate as possible.

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Key Features of Pronto’s Waterfall Enrichment:

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Import your leads easily: Pronto helps you upload files, connect to their API or export leads from LinkedIn.

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20+ Data Providers: Pronto taps into a vast network of data sources to enrich your leads effectively, you can find b2b emails and phone numbers.

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Data quality - drop bounce under 1% and AI data cleaning: Make sure that your lists are always clean and up to date. Protect your domains reputation.

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User-Friendly Interface: With an intuitive dashboard, managing and monitoring the enrichment process becomes straightforward.

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By leveraging Pronto’s capabilities, businesses can ensure their sales and marketing teams have access to the most reliable and comprehensive lead data, enhancing outreach efforts and driving better results.

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How to use Pronto’s waterfall enrichment?

Pronto’s waterfall enrichment allows you to enrich b2b emails and phone numbers.

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Upload your file 👇

You can so it manually or import contacts through API, Zapier, n8n, Clay or Make.

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Map the columns 👇

Identify which column is the First Name, Last Name, Company Domain, Company Name & LinkedIn URL of your contact

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Mapping the company domain and LinkedIn URL allows you to find 25% more emails.

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Start the import 👇

It will take up to a few minutes for the data to be enriched

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Export your results 👇

Here I can see an 80% email enrichment and 90% phone enrichment.

Since one prospect had 2 mobile numbers found, I guess we could round it up to a 80% phone enrichment rate for my batch.

On average, people using Pronto see a 80% email enrichment rate and 65-70% phone enrichment rate.

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Export your results to the place you need it 👇

You can connect with those apps

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Q&A

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What is waterfall enrichment?

Finding contact information for your leads is key. Yet, no vendor has a 100% enrichment rate. (Not even close) Waterfall enrichment is a process in which you use several different data sources, one after the other, to find a person's email and phone number. The more sources you use, the more contact information you can find, and the more potential customers you can reach.

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What is the email find rate using Pronto?

Email find rate depends on industry, geography, and other factors. As an estimate, it averages at around 80%, but it can be considerably higher.

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How do they check email validity?

They use 2 different technologies. One is a regular one, used to determine if an email is valid, accept-all (unverifiable), or invalid. The second one is specifically for 'Accept-all' emails, where they are able to determine if some of the emails are valid or not. This means that they are able to find more valid emails than other providers and exclude more invalid emails.

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Are they GDPR & CCPA Compliant?

Yes. First, we do not have any "contact database," which means that we do not store contact information. Second, we only select providers that are CCPA and GDPR compliant and make sure to audit our providers to ensure their compliance with these regulations.

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