Option 1: SaaS-only lead databases
The fastest path from ICP to list. A SaaS-specific database like port587 indexes only B2B SaaS companies, so you:
- Define your ICP filters (size, category, geography, funding stage).
- Export a clean list as CSV or JSON.
- Import into your outbound tool and start sequencing.
Pros: fast, accurate, SaaS-specific filters, scalable. Cons: paid (port587 is $0.10/lead).
Option 2: Generic B2B databases + filtering
Tools like Apollo, ZoomInfo, and Lusha have broad B2B data. To find SaaS leads:
- Search for "software" or "SaaS" industry tags.
- Manually review results to exclude non-SaaS companies.
- Export and clean the list.
Pros: broad coverage, additional features (sequencing, CRM). Cons: only 10-20% of results are typically B2B SaaS, requires heavy filtering.
Option 3: Manual research
Free sources for finding SaaS companies:
- Product Hunt - new SaaS products launched daily.
- G2 and Capterra - SaaS review directories with company profiles.
- Crunchbase - funding data, company profiles, investor connections.
- LinkedIn - search by industry, company size, and technology.
- GitHub - for devtools and developer-facing SaaS companies.
- Twitter/X - SaaS founders often post growth updates publicly.
Pros: free, high-quality if you invest time. Cons: doesn't scale. 50-100 companies per hour at best.
Option 4: Enrichment workflows (Clay, Clearbit)
Build custom lead lists using waterfall enrichment:
- Start with a seed list (from a database or manual research).
- Enrich with Clay, Clearbit, or similar tools.
- Validate emails and company data.
- Export the final list.
Pros: maximum customisation, can combine multiple sources. Cons: requires setup, data provider credits, and technical skill.
Which approach to use
- Need SaaS leads fast? → SaaS-only database like port587.
- Sell to many industries? → Generic B2B tool (Apollo, ZoomInfo).
- Bootstrap budget? → Manual research + free tools.
- Want maximum customisation? → Enrichment workflows (Clay).
For teams that sell exclusively to B2B SaaS, a SaaS-only database is typically the fastest path between ICP definition and first outbound touch.
Next steps
- Create a free port587 account to test SaaS-only data.
- Read: What is a B2B SaaS leads database?
- Read: SaaS vs generic B2B data