Best AI tools to find leads and prospect B2B

Short answer

Apollo.io ranks #1 for find leads and prospect B2B (score 9.7/10). Pricing: $49/seat/mo (billing period unconfirmed); free tier: yes. Runners-up: ZoomInfo, Clay.

Top 5, ranked by our published rubric. Sponsorship never affects the order. Last updated 2026-10-13.

Compare the top 5 side by side
#ToolScorePricingPaid fromFree tierWhat it is
1Apollo.io9.7Free tier$49/seat/mo (billing period unconfirmed)yesSales prospecting database and outreach
2ZoomInfo8.0CustomCustom (contact sales for pricing)UnverifiedB2B contact and company data
3Clay7.9Free tierLaunch $167/mo (monthly)yesData enrichment and AI research for GTM
4Lusha7.5Free tierStarter $37.45/mo, billed yearlyyesB2B contact data for prospecting
5Common Room5.3From $2,500From $2,500/month as listed (billed annually)UnverifiedBuyer signal intelligence

Sales prospecting database and outreach

Score 9.7/10Paid from: $49/seat/mo (billing period unconfirmed)Free tier: yesLast verified 2026-10-13

Why ranked: Its own site says: “Apollo is the AI sales platform rebuilt as one connected AI GTM system: data, intelligence, and execution for the entire go-to-market motion.” We placed it 1st of 5 on fit for this task. Free tier; paid from $49/seat/mo (billing period unconfirmed).

Fit 10.0 · value 8.8 · breadth 10 · availability 10 (how we score) · pricing source · site live

B2B contact and company data

Score 8.0/10Paid from: Custom (contact sales for pricing)Free tier: UnverifiedLast verified 2026-10-13

Why ranked: Its own site says: “ZoomInfo is the #1 GTM Platform: Marketing and sales AI plus the best B2B data.” We placed it 2nd of 5 on fit for this task. No public price (sales-led).

Fit 8.5 · value 5.0 · breadth 10 · availability 10 (how we score) · pricing source · site live

Data enrichment and AI research for GTM

Score 7.9/10Paid from: Launch $167/mo (monthly)Free tier: yesLast verified 2026-10-13

Why ranked: Its own site says: “Infrastructure to get any data, run agentic workflows, and launch GTM plays.” We placed it 3rd of 5 on fit for this task. Free tier; paid from Launch $167/mo (monthly).

Fit 7.0 · value 7.5 · breadth 10 · availability 10 (how we score) · pricing source · site live

SPONSORED Your tool here: paid placement is shown here, separate from the ranking, and never changes the order. Advertise

B2B contact data for prospecting

Score 7.5/10Paid from: Starter $37.45/mo, billed yearlyFree tier: yesLast verified 2026-10-13

Why ranked: Its own site says: “Verified B2B data: 515M+ contacts, 132M in the US, and 26 buying signals.” We placed it 4th of 5 on fit for this task. Free tier; paid from Starter $37.45/mo, billed yearly.

Fit 5.5 · value 8.8 · breadth 10 · availability 10 (how we score) · pricing source · site live

Buyer signal intelligence

Score 5.3/10Paid from: From $2,500/month as listed (billed annually)Free tier: UnverifiedLast verified 2026-10-13

Why ranked: Its own site says: “We identify the buyer first. Outreaching, coaching, forecasting and everything in-between runs on complete buyer intelligence your team trusts and relies on.” We placed it 5th of 5 on fit for this task. No free plan confirmed; paid from From $2,500/month as listed (billed annually).

Fit 4.0 · value 4.4 · breadth 8 · availability 10 (how we score) · pricing source · site live

FAQ

What is the best AI tool to find leads and prospect B2B?

By TaskRanking's published rubric, Apollo.io ranks first, followed by ZoomInfo and Clay.

Is there a free AI tool to find leads and prospect B2B?

Yes: Apollo.io has a free tier per its own pricing page (checked 2026-10-13).

How are these tools ranked?

Score = 50% fit, 25% value (from vendor pricing pages), 15% breadth, 10% availability. Sponsorship never affects rank.

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