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.

Why target SaaS companies with 10–50 employees?

Companies with 10–50 employees are typically past product-market fit, actively investing in sales and marketing tools, and making purchasing decisions faster than enterprise. They're the sweet spot for tools sold to SaaS teams.

How can I filter by employee count?

port587 lets you set employee range filters directly. Select '10–50' to see only companies in this size bracket, then layer additional filters for category, geography, and funding stage.

SaaS Companies with 10–50 Employees

Short answer

SaaS companies with 10-50 employees are the sweet spot for many B2B sellers - they're past product-market fit, actively buying tools, and making decisions faster than enterprise. port587 lets you filter specifically for this size bracket across all SaaS categories.

Last updated: March 2026

Why 10-50 employees matters

Past the hacking phase - these companies have budget and are investing in their stack.
Fast decision cycles - often a founder or VP approves purchases directly.
Actively hiring - growing teams signal growing needs for tools and services.
High density in SaaS - this is where a majority of funded SaaS startups sit.

How to use this filter

Set company size to 10-50 employees.
Narrow by category - devtools, martech, fintech, HR tech, etc.
Add geography if needed (US, UK, EU, etc.).
Export and run your outbound sequence.

Who buys this list

SDRs selling tools to startups - project management, analytics, security, devtools.
Agencies looking for growth-stage clients who need outbound infrastructure.
Founders doing founder-led sales to companies at a similar stage.

The 10-50 employee range contains the highest density of actively buying SaaS companies. Starting from a SaaS-only database means every record in this filter is a real SaaS company.

Get started

Create a free account to filter SaaS companies by employee count and export targeted lists.