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.

How long does it take to build a SaaS prospect list?

With a SaaS-only database, you can go from ICP definition to exported list in under 10 minutes. Manual research takes 5–10 hours for a comparable list of 500 companies.

How to Build a SaaS Prospect List Step-by-Step

Step 1: Define your ICP precisely

Before touching any database, write down your constraints:

Company size - how many employees? (e.g., 10-50, 50-200)
Category - what type of SaaS? (devtools, martech, fintech, HR tech)
Geography - US only? Europe? Global?
Revenue stage - bootstrapped? Seed? Series A+?
Go-to-market motion - self-serve, sales-led, or hybrid?

The more precise your ICP, the cleaner your list.

Step 2: Choose your data source

SaaS-only database (e.g., port587) - fastest for SaaS-focused outbound.
Generic B2B database (Apollo, ZoomInfo) - broader but requires heavy filtering.
Manual research (Product Hunt, G2, LinkedIn) - free but slow.
Enrichment workflows (Clay) - flexible but requires setup.

Step 3: Apply your ICP filters

Set your filters to match the constraints from Step 1. In a SaaS-only database, this is straightforward - every record is already SaaS. In a generic database, you'll need to add extra filtering to exclude non-SaaS companies.

Step 4: Validate

Before exporting, check a sample:

Are the companies actually SaaS?
Are employee counts and categories accurate?
Are contact emails deliverable (VALID status)?

Step 5: Export and launch

Export as CSV or JSON. Import into your outbound tool. Personalise your first line based on company category and size. Launch.

A well-built prospect list is the single highest-leverage thing you can do for outbound. Get the list right and mediocre copy still works. Get the list wrong and the best copy in the world won't save you.

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