Search large databases of companies and business contacts to build account and prospect lists.
B2B databases help sales and marketing teams find companies and business contacts that match a target market. The meaningful differences are data coverage by region, available filters, verification methods, direct-dial and email availability, intent or technographic signals, and how records move into CRM and outreach tools. A team selling into Europe may value different data controls than one building large US prospect lists.
By SEM Solutions Editorial Team. Researched from vendor documentation, not hands-on testing. Ordered by Overall Score. Checked October 7, 2026. How we research
For highly filtered prospecting
#2 of 7 in B2B Databases
Apollo combines contact and company search with a large set of targeting filters. Teams can narrow prospects by job title, location, company size, industry, buying intent, technologies, hiring signals, and other criteria, then save the resulting people or accounts for outreach; the search workflow is especially useful when a go-to-market team wants database research and engagement to sit close together.
Quick contact enrichment
#3 of 7 in B2B Databases
Lusha combines B2B contact data with prospecting and enrichment workflows, making it useful when users need to reveal or add business contact details while researching accounts. Its product is built for go-to-market teams, with browser-based prospecting and CRM-oriented workflows that do not need a data engineer.
API-first data access
#5 of 7 in B2B Databases
People Data Labs emphasizes developers and data teams, exposing person and company data through search, enrichment, and bulk datasets. Instead of centering the workflow on a salesperson browsing a prospecting interface, it serves programmatic use inside products, internal systems, and data pipelines. It is a distinct option when the database itself needs to become part of another application.
For verified list building
#6 of 7 in B2B Databases
UpLead covers searchable B2B contact data with real-time email verification at export. This serves structured prospect-list building more than broad sales workflow automation. That workflow is useful for teams that care about list quality before records enter outreach systems; its database supports filtering and enrichment, while verification is applied close to the point of use instead of relying only on a static stored email.
Compliance-focused European prospecting
#7 of 7 in B2B Databases
Cognism emphasizes verified business contact data, European coverage, and compliance checks. Its dataset combines company information, people data, technologies, funding and hiring signals, intent data, and verified contact details, with do-not-call rules applied during access.
Ranked by Overall Score: our Editor Rating and Market Signal, 50/50. Market Signal uses Ahrefs and Semrush data through September 2026, pulled October 12, 2026. How we score
Contact lookup platform for verified emails and direct dials, with intent signals and automated lists.
Best for: Sales and recruiting teams that need verified emails and phone numbers delivered into a CRM, ATS or sales engagement tool.
B2B contact database with prospecting, enrichment, email sequences and calling in one workspace.
Best for: Startups and small sales teams that want prospect data, outreach sequences and calling in a single tool.
B2B sales intelligence platform for contact discovery, buyer signals and enrichment.
Best for: Sales teams that need contact details and company intelligence directly inside prospecting and CRM workflows.
B2B contact and company database with intent signals, website visitor identification and engagement tools.
Best for: B2B sales and revenue operations teams that want contact data, intent signals and CRM enrichment from one vendor under a negotiated contract.
Developer data platform providing person, company, job, and location datasets through APIs and files.
Best for: Data and engineering teams that need programmable B2B person or company data for enrichment, search, and analytics.
B2B prospecting database with real-time email verification, company filters and technographics.
Best for: B2B sales teams that prioritize verified email data and filtered account lists for outbound prospecting.
B2B sales intelligence platform centered on verified mobile numbers, compliant contact data, intent, and enrichment.
Best for: B2B sales teams that rely on phone outreach and need verified contact data, enrichment, and compliance-focused prospecting.
Coverage and data quality vary by geography, contact type, company size, and field. The right database is the one that reliably covers the segments your team targets and offers filters and verification methods that match how you prospect.
Intent can help prioritize accounts that appear to be researching relevant topics, but it is not a substitute for accurate contact and company data. Treat it as an additional signal for timing and prioritization.
Yes, RocketReach, Apollo.io, Lusha and People Data Labs all offer a free plan. Free tiers usually come with usage limits, so check whether they cover your volume before relying on them long-term.