What is a B2B SaaS leads database?

A B2B SaaS leads database is a searchable collection of verified software-as-a-service companies with contact information, firmographic data, and technology signals. port587's database contains over 100,000 verified B2B SaaS companies that can be filtered by industry, geography, company size, revenue, and funding stage.

How much does the port587 leads database cost?

port587 uses pay-per-lead pricing with no subscriptions. Credits start at $49 for 1,000 leads (~$0.049/lead) and go down to ~$0.02/lead at agency volume (50,000+). Credits never expire, and you only pay when you export contact data.

Where does the data come from?

Leads are sourced from publicly available business directories, LinkedIn, and verified B2B data providers. All data is regularly cleaned, deduplicated, and validated through automated email verification and website enrichment.

How is port587 different from Apollo or ZoomInfo?

port587 is a pure data layer, not an all-in-one platform. You pay only for the leads you export (no seat-based subscriptions), use your own outbound tools, and own your data in CSV or JSON format. Unlike Apollo and ZoomInfo, there are no forced bundles of sequencing, CRM, or calling features.

No. Credits never expire. You buy them once and use them whenever you need to export leads.

Yes. You can create an API key from your dashboard and integrate lead search directly into your tools and workflows via the REST API.

What formats can I export?

Leads can be exported as CSV or JSON, ready for import into any CRM, enrichment tool, or spreadsheet.

Is buying B2B SaaS leads worth it?

Yes, if the data is fresh, verified, and matches your ICP. The alternative — manual research — costs far more in time. The key is choosing a data source that focuses on quality (SaaS-only, verified emails) rather than sheer volume.

What should I avoid when buying leads?

Avoid bulk email lists sold as static CSVs with no freshness guarantee. Avoid databases with no email verification. Avoid sources that mix all B2B companies together without SaaS-specific filtering.

Where to Buy SaaS Leads (and What to Avoid)

Where to buy SaaS leads

SaaS-only databases

port587 - SaaS companies only. Pay per lead ($0.10). No subscription. Try it free.

Generic B2B platforms

Apollo - broad B2B data + sequencing. $49+/month. Good if you sell to many industries.
ZoomInfo - enterprise B2B data. $15K+/year. Intent signals and technographics.
Lusha - lighter-weight B2B data. $49+/month. LinkedIn integration.

Enrichment tools

Clay - build and enrich lists from multiple sources. Pay for data provider credits.
Clearbit - company and contact enrichment API.

What to avoid

Static CSV email lists - bulk lists sold as one-time downloads with no freshness guarantee. High bounce rates, low deliverability.
No email verification - if the provider doesn't validate emails, you're paying for bounces.
"10 million B2B contacts" lists - quantity over quality. Most records will be irrelevant.
No SaaS filtering - generic B2B data where only 10-20% of records are SaaS companies.
No update cadence - if the data isn't refreshed regularly, contact info decays within months.

How to evaluate a data source

Before committing budget, test with a small sample:

Export 100-200 leads.
Manually spot-check 20 companies - are they actually SaaS?
Check email validation rates - what % are VALID?
Run a small cold email test - measure reply rate.
Compare cost per qualified conversation against your alternatives.

The best data source for SaaS outbound is the one where the highest percentage of records match your ICP without manual filtering. For SaaS-only teams, that's usually a SaaS-focused database.

Get started

Create a free port587 account to test SaaS-only lead quality before committing budget.