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B2B Data Providers: How to Choose the Right Source

Compare B2B contact databases, company data, enrichment and intent by what you start with, what comes back and what to test before paying.

Dievio Team · Growth Systems · November 5, 2026 · 4 min read

Three differently stacked B2B sources, a company directory, profile cards and a table, enter a visual comparison grid

Key points

  • Choose the provider by the input you have and the record you need next.
  • Compare the specific search, enrichment or intent operation you can access.
  • Use the same input sample and acceptance rule when testing providers.

Choose a B2B data provider by the record you need next. A contact database finds new people. A company data provider fills account fields. A person enrichment tool completes an existing record. An intent provider helps prioritize companies by research activity. Start with the identifier you already have and the output your team will use.

Which type of B2B data provider fits your task?

TaskTypical inputUseful outputExample to evaluate
Find new contactsJob titles, geography, company filters or target domainsPeople who match the filters, with the fields available for your exportDievio lead search or Apollo People API Search
Complete company recordsCompany website or nameA matched account with fields such as industry, location or employee countPeople Data Labs Company Enrichment
Complete known contact recordsPublic profile URL, or a person’s name and company domainA matched contact or a candidate work emailDievio LinkedIn Lookup or Hunter Email Finder
Prioritize accounts using intentTarget accounts and relevant topicsAccount-level signals that help decide which companies to research firstBombora Company Surge

These are documented examples of different operations. A provider can cover more than one row. The table compares inputs and outputs. Run your own pilot to measure coverage and cost on your segment.

Compare the operation you can actually access

Contact discovery

Dievio’s public search API accepts contact and company filters and returns matching records. An API key uses the separate API credit balance. One record returned uses one API credit. Test the exact title filters and check which fields are populated before exporting the full list.

Apollo’s People API Search supports filters such as titles, seniority, personal location and employer headquarters. Its documented search response includes indicators for contact-field availability. To retrieve the email or phone through the API, use Apollo’s separate enrichment operation. Check your account’s eligibility and the access allowed by your key before planning a bulk run. Apollo People API Search documentation.

Company records

People Data Labs describes Company Enrichment as a one-to-one company match. Its input documentation includes a website parameter. For a CRM account project, test the match against the exact domain you store, especially when you track a subsidiary or regional business separately. Check that your access includes the company fields your workflow needs. People Data Labs input parameters.

Known people

If your file has public LinkedIn profile URLs, Dievio’s Lookup API accepts those URLs and returns available contact fields for matching profiles. If your starting point is a person’s name and a domain, Hunter documents an Email Finder for that input. Review the name, employer and email result separately before overwriting the source record. Hunter API reference.

Intent

Bombora’s Company Surge documentation describes scores based on changes in an organization’s content consumption relative to its historical baseline. Use the company-and-topic signal to prioritize account research. Use a separate contact source to identify the roles you need at the account. Ask which delivery method your subscription includes. Bombora score and topic documentation.

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Find leadsExample
FounderSoftwareUnited States
AM
Alex MorganFounder & CEO · Northstaralex@northstar.example
JC
Jamie ChenCo-founder · Formlyjamie@formly.example
Work emailsCompany detailsCSV export

Example: choose a source for one CRM project

Suppose you have 40 company domains and want to find operations leaders. If the missing fields are company size and industry, test company enrichment on a handful of domains. If the accounts already fit and the missing records are people, run a role search against those domains. If your team already found the people’s profiles, use the profile URLs to enrich those rows. If all 40 accounts already have contacts and the question is which accounts to research first, evaluate intent against the topics that matter to your product.

Write one acceptance rule before comparing results. For the role-search example, a usable row could require a current operations title, the correct employer and a populated work email. Compare providers on the same domains and requirements. Count unique rows that meet the rule and include both discovery and enrichment charges in the cost. Use the coverage and accuracy guide to run the pilot.

Questions before choosing a provider

Can a company database give me a list of contacts?

Look for a separate people-search or contact export operation. A company record can help you qualify accounts by industry or size. The people operation gives you records to review for outreach.

Should I use a database or an enrichment tool?

Use discovery when your list is missing people. Use enrichment when you already have a stable identifier for each person or company and need specific missing fields.

What should I verify before paying?

Ask for the smallest sample you can use with your own input. Confirm the required fields, permitted export format, matching rules, and what gets billed for a match, an empty response or a second enrichment step.

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