What's the best sales intelligence software for small business?

We're looking into sales intelligence tools that work well for small business teams trying to identify leads, enrich contact data, and improve outbound efforts without a huge budget or steep learning curve.

Here are some top-rated sales intelligence platforms I’m currently reviewing. If you’ve used any of them, I’d love to know how they worked out for your team.

1. ZoomInfo Sales: Comprehensive data enrichment and lead generation tool. Best for teams needing accurate B2B contact info at scale.
2. Apollo.io: Combines sales engagement with contact discovery. Good fit for small teams looking to run outreach directly from the platform.
3. Seamless.AI: Real-time search engine for B2B leads. Known for ease of use and automatic list building.
4. LinkedIn Sales Navigator: Lead discovery and outreach within LinkedIn. Works well if your team is already leveraging LinkedIn for prospecting.
5. Instantly: Cold email outreach and lead generation in one platform. Especially useful for scrappy sales teams looking for speed and automation.

If you’ve tried any of these or explored other sales intelligence software options, I’d love to hear what worked, what didn’t, and what helped your team hit your goals faster.