Short answer: there is no single best B2B prospecting tool, because prospecting is five jobs. For contact data, Apollo, ZoomInfo, Cognism, Lusha and Seamless.AI lead. For enrichment, Clay. For account and people search, LinkedIn Sales Navigator. For buying signals, Common Room and UserGems. For sending, Instantly and Amplemarket. And when cold outreach stops getting replies from senior buyers, Boomerang turns the relationships your company already has into warm introductions.
Pricing below comes from each vendor's own pricing page, checked on 28 September 2026. Where a vendor does not publish prices, we say so. Prices change, so check anything that matters to your decision. Boomerang is our product; we list where it is the wrong choice too.
The 12 tools at a glance
| Tool | Main job | Free plan | Entry price (Sep 2026) |
|---|---|---|---|
| Boomerang | Warm introductions | 7-day trial, no card | Starter $80/mo billed annually ($100 monthly), up to 3 users |
| Apollo.io | Data + sequencing | Yes, free forever plan | See Apollo's pricing page |
| LinkedIn Sales Navigator | People and account search | Trial only | Core $119.99/mo per licence |
| ZoomInfo | Data + intent | Trial only | Quote only |
| Cognism | Data, verified mobiles | Free data sample | Quote only |
| Lusha | Data + enrichment | Yes, 40 credits/mo | See Lusha's pricing page |
| Seamless.AI | Contact data | Yes, 50 credits | Pro is quote only |
| Clay | Enrichment + workflows | Yes, 100 data credits/mo | Launch from $185/mo, unlimited seats |
| Common Room | Buyer signals | No | Essential $2,500/mo billed annually, 5 seats |
| UserGems | Job-change signals | No | Core $40,000/yr, unlimited users |
| Amplemarket | Data + multichannel sending | Trial only | Startup $600/mo annual, 2 users |
| Instantly | Cold email sending | 14-day trial | Growth $47/mo ($37.60 billed yearly) |
How to pick: which job is your bottleneck?
- You cannot find the right people. Start with a contact database (Apollo, ZoomInfo, Cognism, Lusha, Seamless.AI) or Sales Navigator for search.
- Your data is patchy or wrong. Add an enrichment layer (Clay) on top of one data source rather than buying a second database.
- You do not know who is ready to buy. Add a signal source (Common Room for intent and community, UserGems for champion job changes).
- You cannot send at volume. Add a sender (Instantly for email, Amplemarket for multichannel).
- You reach the right people and they do not reply. That is the warm-intro gap. More data and more sends will not fix it; a trusted introduction will (Boomerang).
The 12 best B2B prospecting tools
1. Boomerang: best when cold outreach stops getting replies
What it is. Boomerang is warm-introduction software for B2B revenue teams. Its AI agent, Rudy, maps who your executives and employees, investors and board, customer champions and partners already know inside your target accounts, using 80+ relationship signals from systems you already have. On a live deal, Rudy proposes who should ask whom and drafts the ask. The rep approves, the relationship owner approves, and the connector sends from their own account. Rudy never sends on anyone's behalf; he nudges and tracks the ask to a booked meeting.
Pricing: Starter $80 a month billed annually ($100 monthly), up to 3 users and a 7-day free trial with no card. Team $600 a month billed annually. Users are included, and connectors are never billed. See pricing.
Strength: it opens senior doors that cold channels cannot. Storylane saw a 12 percent reply rate on champion re-engagement against about 1 percent cold. Limitation: it is not a contact database or a sequencer. If you need net-new cold lists or high-volume sending, pair it with a data tool and a sender below. Its value also grows with the size of your network.
2. Apollo.io: best all-in-one starting point
Contact data and email sequencing in one tool, with a free forever plan that can send campaigns from Gmail. Strength: one tool and one bill for search, data and sending. Limitation: reviewers on G2 note that credits do not roll over and costs climb with usage. Paid prices are on Apollo's pricing page.
3. LinkedIn Sales Navigator: best for people and account search
50+ search filters, lead and account lists, and AI insights on LinkedIn's own data. Core is $119.99 a month per licence ($1,079.88 a year). Strength: the freshest job titles and org structures. Limitation: it shows who to message, not who can introduce you, and advanced CRM sync sits in the quote-only Advanced Plus tier.
4. ZoomInfo: best enterprise data and intent
A large B2B contact and company database; higher tiers add intent, website visitors and champion tracking. Strength: breadth for enterprise teams. Limitation: no public pricing, and its FAQ says integrations need a minimum bulk credit purchase.
5. Cognism: best for verified mobile numbers
Contact data known for phone-verified mobiles; the Pro plan adds Bombora intent. Quote only, with 5 seats on the Standard plan. Strength: connect rates for phone-led teams. Limitation: no self-serve plan, and intent is limited to 12 topics.
6. Lusha: best lightweight data for small teams
Contact data and enrichment with a free plan of 40 credits a month (an email costs 1 credit, a phone 5). Strength: monthly plans roll unused credits over, up to twice the plan limit. Limitation: phone reveals are credit-heavy, and annual credits reset at year end. Paid prices are on Lusha's pricing page.
7. Seamless.AI: best free plan with dialing built in
Contact data with a free plan of 50 credits for one user, including its Connect module for email, calls and tasks and a job-changes filter. Pro is quote only, sold as annual credit packages. Strength: a usable free tier. Limitation: paid prices are not published, and enrichment and intent are add-ons.
8. Clay: best for enrichment and custom workflows
Waterfall enrichment across 150+ data providers, with workflows and your own API keys. Free plan with 100 data credits a month; Launch from $185 a month with unlimited seats. Strength: better coverage than any single database. Limitation: it meters actions and data credits separately, which makes cost harder to forecast.
9. Common Room: best for combined buyer signals
Combines job changes, website de-anonymisation, Bombora topics and community activity into account signals. Essential is $2,500 a month billed annually, with 5 seats. Strength: many signal types in one view. Limitation: a $30,000 a year minimum, and data exports are an add-on on Essential.
10. UserGems: best dedicated job-change tracking
Tracks when past customers and champions change jobs and turns the move into pipeline. Core is $40,000 a year with unlimited users, plus a one-time implementation fee. Strength: unlimited users, and a money-back offer tied to closed-won ROI. Limitation: the entry price. The alert tells you someone moved; getting the meeting is still on you.
11. Amplemarket: best all-in-one for multichannel outbound
Search, intent signals, multichannel sequences and an AI copilot in one product. Startup is $600 a month on an annual term, with 2 users. Strength: fewer tools to stitch together. Limitation: annual commitment and only 2 users on the entry plan.
12. Instantly: best for cold email at volume
Cold email sending with unlimited email accounts and warmup on every plan. Growth is $47 a month, or $37.60 a month billed yearly. Strength: cheap, high-volume sending infrastructure. Limitation: sending and data credits are separate subscriptions, webhooks need the $97 Hypergrowth plan, and unused credits expire.
Three stacks that work in 2026
- Founder-led or first SDR: Apollo free plan, Sales Navigator Core, and Boomerang Starter for the accounts that matter most.
- Growing SDR team: one database (Apollo, Cognism or ZoomInfo), Clay for enrichment, Instantly or Amplemarket to send, and Boomerang so reps ask for warm paths before they cold email a senior buyer.
- Enterprise ABM: ZoomInfo or Cognism, a signal layer (Common Room or UserGems), and Boomerang to route asks through executives, investors, customers and partners on named accounts.
Free plans worth starting with
- Apollo.io: free forever plan with search, data and sending from Gmail.
- Clay: 100 data credits and 500 actions a month, unlimited seats.
- Lusha: 40 credits a month (an email costs 1 credit, a phone 5).
- Seamless.AI: 50 credits for one user, including dialing.
- Trials only: Sales Navigator, ZoomInfo, Amplemarket and Instantly (14 days). Boomerang has a 7-day free trial with no card.
Sources
- Vendor pricing pages, checked 28 September 2026: Apollo, ZoomInfo, Clay, Cognism, Lusha, Sales Navigator, Seamless.AI, UserGems, Common Room, Amplemarket, Instantly, Boomerang.
Related reading
- Free warm intro tools
- Best warm intro tools for $50K to $100K ACV SaaS
- LinkedIn Sales Navigator alternatives (2026)
- Best warm introduction tools (2026)
- Warm vs cold leads: 2026 conversion data
Related reading: The Warmbound Tool Stack: Build It Top Down, Tools to Find Who Knows Whom at Target Accounts, Best Sales Tools and AI Agents for B2B Sales in 2026
Frequently asked questions
What is the best B2B prospecting tool?
It depends on your bottleneck. Apollo is the best all-in-one starting point, Sales Navigator is best for search, ZoomInfo and Cognism for enterprise data, Clay for enrichment, and Boomerang when your prospects are reachable but not replying to cold outreach.
What is the best free B2B prospecting tool?
Apollo's free plan covers search, data and sending in one place. Clay, Lusha and Seamless.AI also have free tiers with monthly credits. Boomerang offers a 7-day free trial with no card.
Do I need more than one prospecting tool?
Usually yes. Most teams combine one data source, an enrichment layer or signal source, a sender, and a warm-introduction layer for senior buyers. Buying two overlapping databases is the most common waste.
Why use a warm-introduction tool alongside a database?
A database tells you who to contact. It cannot make them reply. A warm introduction from someone the buyer already trusts reaches senior people that cold email rarely does. Boomerang finds those paths across your executives, investors, customers and partners, and the connector sends the ask from their own account.
How much do B2B prospecting tools cost in 2026?
From free tiers up to tens of thousands a year. As of September 2026, Sales Navigator Core is $119.99 a month per licence, Instantly Growth $47 a month, Clay Launch from $185 a month, Amplemarket Startup $600 a month, Common Room Essential $2,500 a month billed annually, and UserGems Core $40,000 a year. ZoomInfo and Cognism are quote only. Boomerang Starter is $80 a month billed annually.
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