Best 6sense Alternatives for 2025

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If you’re reading this, you’re probably looking for a solid alternative to 6sense in 2025. Been there. I’ve tested a bunch of B2B lead generation tools—some were killer, others… not so much. Below’s a no-BS breakdown of the best 6sense alternatives I’ve personally used, covering what works, what sucks, and what you should really know before diving in.

1. ZoomInfo – King of the Data Jungle (but pricey)

What it is: A premium B2B leads database provider loaded with firmographics, technographics, intent data, and direct dials.

What I like:

• Ridiculously deep database. You’ll find almost anyone.

• Intent data actually works—great for ABM campaigns.

• Syncs well with CRMs like HubSpot and Salesforce.

What I don’t like:

• Expensive AF. Like, enterprise-tier pricing.

• Support can be hit or miss.

• UI feels a bit bloated at times.

Best for: Big teams with budget. If you’re serious about data accuracy and want the “corporate Cadillac,” this is it.

2. Apollo.io – My Favorite All-Rounder

What it is: B2B sales engagement platform + lead gen database + email automation.

What I like:

• Free plan is actually usable.

• Massive database with emails + phone numbers.

• Built-in sequences make outreach easy.

What I don’t like:

• Phone data isn’t always spot-on.

• UI can lag if you’re bulk exporting.

Best for: Solo founders, sales reps, and lean B2B teams. Great for outreach at scale without paying ZoomInfo prices.

3. Kaspr – Best for LinkedIn Leads

What it is: Chrome extension to pull contact data directly from LinkedIn profiles.

What I like:

• Super simple and fast.

• Integrates well with LinkedIn Sales Navigator.

• Solid for emails and mobile numbers.

What I don’t like:

• More of a scraper—don’t expect a full B2B leads platform.

• Limited outside of LinkedIn.

Best for: SDRs who live on LinkedIn and want direct contact data on the fly.

4. LeadIQ – Built for Prospecting Pros

What it is: Lead capture tool with email finder, intent signals, and CRM sync.

What I like:

• Nice workflow for capturing + pushing leads to Salesforce.

• Chrome extension is fast and slick.

• Integrations are tight.

What I don’t like:

• Contact data accuracy is hit or miss.

• Not cheap for what you get.

Best for: B2B sales teams focused on outbound prospecting with Salesforce.

5. RocketReach – Fast & Lightweight

What it is: A straightforward contact lookup tool with business leads data.

What I like:

• Dead simple UI.

• Great for quick lookups—email + phone combo.

• Affordable plans.

What I don’t like:

• Limited features. No outreach or intent.

• Not ideal for large-scale prospecting.

Best for: Solo users or founders who just need to find people fast without the fluff.

6. SalesIntel – Human-Verified Data

What it is: B2B contact database with intent signals and verified leads.

What I like:

• Data’s pretty accurate thanks to human verification.

• Decent intent data from Bombora.

• White-glove onboarding.

What I don’t like:

• UI feels dated.

• Not much automation built-in.

Best for: Mid-size B2B companies who want cleaner contact data and are willing to pay a bit more for accuracy.

7. Skrapp – Budget-Friendly Email Finder

What it is: Simple email finder and lead gen tool built around LinkedIn.

What I like:

• Cheap and cheerful.

• Clean interface.

• Works well with LinkedIn scraping.

What I don’t like:

• Emails aren’t always verified.

• Lacks depth—no intent, no firmographics.

Best for: Freelancers or micro teams doing basic cold outreach.

8. Snov.io – Email Outreach Meets Lead Gen

What it is: Lead generation tool mixed with cold email platform.

What I like:

• Prospecting + email automation in one place.

• Nice drip campaign builder.

• Decent email verifier.

What I don’t like:

• Smaller database than others.

• Phone numbers mostly missing.

Best for: B2B startups or marketers running email campaigns on a budget.

9. LeadSwift – New Kid with Smart Filters

What it is: Business leads platform with search filters, email finder, and outreach tools.

What I like:

• Super intuitive.

• Clean UI, fast searches.

• Pricing is transparent.

What I don’t like:

• Still growing—data coverage isn’t massive.

• Limited integrations.

Best for: Small sales teams or founders who want a simple lead gen tool that works without a learning curve.

10. LeadScrape – Old-School but Functional

What it is: Lead generation software you download to your PC (yep).

What I like:

• You own the software—no monthly fees.

• Pulls company info, phone numbers, emails.

What I don’t like:

• Desktop-only (ugh).

• Interface feels like 2012.

Best for: Offline lead generation, or if you just want to buy it once and forget subscriptions.

11. GetProspect – Basic but Gets the Job Done

What it is: Email finder focused on LinkedIn prospecting.

What I like:

• Very beginner-friendly.

• Chrome extension is handy.

• Decent for scraping emails off LinkedIn.

What I don’t like:

• No phone numbers.

• Not great for big teams or deep search.

Best for: Small teams or solo founders just trying to pull emails from LinkedIn and plug ’em into a cold email tool.

12. TaskDrive – Done-For-You Lead Gen

What it is: A lead research service with actual humans doing the work.

What I like:

• You get a team doing manual prospecting.

• Super custom targeting.

• Great for niche markets where automation fails.

What I don’t like:

• Takes time—can’t expect instant results.

• Pricing starts high (think $1K+ monthly).

Best for: Companies with budget but no internal SDRs. You want clean leads without lifting a finger? This is it.

13. LeadFuze – AI-Powered Lists

What it is: B2B leads database + automation for building lead lists.

What I like:

• Fuzebot builds lead lists automatically.

• Filters are strong (job titles, tech stack, etc.).

• Good integrations.

What I don’t like:

• Data can be a bit stale.

• UI needs a refresh.

Best for: Sales teams that want to “set it and forget it” with automated list building.

14. Instantly.ai – Cold Email on Steroids

What it is: Cold email outreach platform focused on sending volume at scale.

What I like:

• Unlimited sending accounts.

• Smart warmup and inbox rotation.

• Nice analytics dashboard.

What I don’t like:

• No lead database—just for outreach.

• Can get pricey if you add too many inboxes.

Best for: Growth hackers, outbound agencies, and anyone doing serious cold outreach campaigns.

15. Brevo – More CRM Than Lead Gen

What it is: All-in-one CRM + email marketing platform (formerly Sendinblue).

What I like:

• Clean CRM + marketing automation in one.

• Great value—starts free.

• SMS + WhatsApp campaigns too.

What I don’t like:

• Not built for prospecting or B2B lead lists.

• No native data sourcing.

Best for: B2B companies that already have a list and want a solid CRM + outreach stack.

16. Leadzai – AI That Actually Helps

What it is: AI-powered marketing automation focused on generating leads with ads + optimization.

What I like:

• Runs and optimizes ad campaigns for you.

• Built-in AI suggestions are actually useful.

• Good for Google + Meta ads.

What I don’t like:

• No email/phone data sourcing.

• Doesn’t replace prospecting tools.

Best for: B2B marketers running paid campaigns who want AI to handle the messy parts.

17. Leadfeeder – Website Visitor Intel

What it is: Reverse IP tracking tool to ID companies visiting your site.

What I like:

• Tells you which companies hit your site (even if they don’t convert).

• Syncs to CRMs.

• Easy setup with Google Analytics or script.

What I don’t like:

• No contact data (you’ll need enrichment tools).

• Only useful if you’ve got traffic.

Best for: SaaS or B2B sites with good traffic that want to turn visitors into leads.

18. UpLead – Clean Data with a Trial

What it is: Real-time verified B2B leads database with emails + phones.

What I like:

• Data quality is top-tier.

• Pay-as-you-go model = flexible pricing.

• Free credits to test it out.

What I don’t like:

• No outreach tools built-in.

• Smaller database than ZoomInfo or Apollo.

Best for: Anyone who values accurate, verified contact data but doesn’t want to lock into long contracts.

19. Lead411 – Solid Data + Intent Signals

What it is: B2B data platform with verified contacts, technographics, and buyer intent.

What I like:

• Intent data included in most plans.

• Email + direct dials are solid.

• Filters and segmentation are deep.

What I don’t like:

• UI isn’t the slickest.

• Gets pricey if you want intent + full access.

Best for: Mid-size B2B sales teams looking for a ZoomInfo alternative with intent baked in.

20. Overloop – CRM + Email Sequences in One

What it is: Outreach and CRM tool designed for outbound sales.

What I like:

• Email sequences, tracking, CRM, and pipeline—clean package.

• Nice UI. Super easy to set up.

• LinkedIn task flows built-in.

What I don’t like:

• No lead database—you’ll need to bring your own contacts.

• Lacks native data enrichment.

Best for: Outbound sales reps who already have lead data and want a smooth campaign + follow-up workflow.

21. Hunter.io – OG Email Finder

What it is: Email lookup tool for domains and LinkedIn profiles.

What I like:

• Domain search = goldmine for company-wide email patterns.

• Fast + easy Chrome extension.

• Super affordable.

What I don’t like:

• No phone numbers.

• Email accuracy can vary.

Best for: Freelancers, founders, or SDRs just needing clean email addresses—quick and cheap.

22. Coldlytics – Done-for-You Lead Lists + Cold Data

What it is: Human-curated B2B lead research + email verification.

What I like:

• Their team does the digging for you.

• You get leads tailored to your ICP.

• Emails are verified before delivery.

What I don’t like:

• Slower than scraping tools.

• Not cheap if you’re doing volume.

Best for: Agencies or consultants who want curated, ready-to-send cold lead lists without lifting a finger.

23. Seamless.ai – Big Claims, Mixed Results

What it is: B2B contact data platform with a big database and integrations.

What I like:

• Tons of contacts, emails, phones.

• Chrome extension works on LinkedIn.

• Integrated with Salesforce and HubSpot.

What I don’t like:

• Data quality is hit or miss.

• The upsells and popups are wild.

Best for: Sales teams doing high-volume prospecting and willing to deal with a bit of noise for the scale.

24. LeadsGorilla – Local Lead Finder

What it is: Local business lead scraper focused on Google Maps, Yelp, and FB.

What I like:

• Perfect for scraping SMBs.

• Pulls emails, phone numbers, websites, reviews, etc.

• Great for local marketing agencies.

What I don’t like:

• Desktop software.

• Not ideal for SaaS/B2B targeting.

Best for: Agencies selling local SEO, web design, or ad services to small businesses.

25. Lusha – Easy and Fast, But Limited

What it is: Contact data tool with a Chrome extension and web app.

What I like:

• Super easy to use on LinkedIn.

• Good email + direct dial hit rate.

• Clean UI.

What I don’t like:

• Credits run out fast.

• Not much campaign or enrichment depth.

Best for: Fast prospecting on LinkedIn. Great if you want data without the complexity.

26. Clay – Automate Anything (If You’re Nerdy Enough)

What it is: No-code tool that connects multiple data sources and automates outreach workflows.

What I like:

• Wild automation power. Pull from LinkedIn, Clearbit, Apollo, etc.

• Smart enrichment with ChatGPT.

• Can build really advanced prospecting workflows.

What I don’t like:

• Learning curve is real.

• Not for beginners or non-technical users.

Best for: Growth hackers, power users, and agencies who want to stitch together multiple tools into one super-workflow.

27. Datanyze – Simple B2B Data for SMBs

What it is: B2B sales intelligence tool with firmographic and technographic data.

What I like:

• Easy to use.

• Affordable for smaller teams.

• Good tech stack filters.

What I don’t like:

• Database isn’t as big as Apollo or ZoomInfo.

• UI is a little basic.

Best for: Small B2B teams needing clean, usable data without paying enterprise pricing.

28. Dun & Bradstreet (DNB) – Corporate Data Beast

What it is: Deep B2B database provider with financials, firmographics, risk data, and more.

What I like:

• Enterprise-grade data accuracy.

• Massive database.

• Trusted in finance and compliance-heavy industries.

What I don’t like:

• Complicated pricing.

• Feels very “corporate”—not sales-friendly.

Best for: Big companies doing B2B lead gen in regulated industries, or anyone needing deep business intel.